Today's Message Index:
----------------------
1. 12:27 AM - Re: cruise performance test data listed ()
2. 12:42 AM - Re: Global Flyer (Mickey Coggins)
3. 03:08 AM - Re: cruise performance test data listed (Kevin Horton)
4. 03:27 AM - Re: Hanger or Garage (Dana Overall)
5. 03:33 AM - Re: Paging Stein Bruch (Dana Overall)
6. 05:56 AM - RV-6 fuselage kt?? (Morley Bullock)
7. 08:21 AM - Vans Fuel Valve (Wheeler North)
8. 08:22 AM - full take off power (Wheeler North)
9. 09:07 AM - Re: KX- 155 (G. Booze)
10. 10:59 AM - Re: RV-6 fuselage kt?? (RV6 Flyer)
11. 11:51 AM - F.I. to FAB Spacer (Neil McLeod)
12. 01:44 PM - Re: panel label engraving with back lighting (Wayne @ Aircraft Engravers)
13. 02:47 PM - Teflon tape on gas line thread, OK?? (Charles Heathco)
14. 02:57 PM - Re: Teflon tape on gas line thread, OK?? (Jeff Dowling)
15. 02:57 PM - #4 ELT panel mounting screws (Wayne Pedersen)
16. 03:03 PM - Re: Teflon tape on gas line thread, OK?? (Sam Buchanan)
17. 03:16 PM - Re: Teflon tape on gas line thread, OK?? (Dale Ensing)
18. 03:18 PM - Re: #4 ELT panel mounting screws (Jeff Point)
19. 03:38 PM - Re: Teflon tape on gas line thread, OK?? (Jim Jewell)
20. 03:38 PM - Re: Teflon tape on gas line thread, OK?? (JOHN STARN)
21. 03:41 PM - Re teflon tape no no. (Charles Heathco)
22. 03:47 PM - Re: Teflon tape on gas line thread, OK?? (luckymacy@comcast.net (lucky))
23. 04:14 PM - Re: Teflon tape on gas line thread, OK?? (Dan Checkoway)
24. 04:15 PM - Re: Cruise performance data ()
25. 04:33 PM - Re: Teflon tape on gas line thread, OK?? (JOHN STARN)
26. 05:09 PM - Re: #4 ELT panel mounting screws (Dave Bristol)
27. 05:09 PM - Re: Vans Fuel Valve (Dave Bristol)
28. 05:43 PM - Re: Teflon tape on gas line thread, OK?? (cgalley)
29. 05:46 PM - Re: #4 ELT panel mounting screws (cgalley)
30. 05:56 PM - Re: Teflon tape on gas line thread, OK?? (cgalley)
31. 06:04 PM - KitLog Pro v2.0 (Paul Besing)
32. 07:04 PM - New Van's RV-12? (Jerry Hansen)
33. 07:32 PM - Re: Re: RV-List Digest: 0-320 E2D hiccups (Bob 1)
34. 07:47 PM - Re: New Van's RV-12? (Dave Bristol)
35. 08:19 PM - Re: New Van's RV-12? (Matt Dralle)
36. 08:47 PM - Re: #4 ELT panel mounting screws (Dave Bristol)
37. 08:52 PM - Re: #4 ELT panel mounting screws (Bobby Hester)
38. 08:55 PM - Re: New Van's RV-12? (Don Mack)
39. 09:13 PM - Re: New Van's RV-12? (sportypilot@stx.rr.com)
40. 09:20 PM - Electronic ign & mag combo (j1j2h3@juno.com)
41. 10:29 PM - Re: New Van's RV-12? (Jerry Springer)
42. 11:04 PM - Garmin 196 problem (Jeff Bertsch)
Message 1
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| Subject: | Re: cruise performance test data listed |
--> RV-List message posted by: <gmcjetpilot@yahoo.com>
I did a spread sheet that plots Jim's prop data.
If anyone wants a copy of the plots, I'll be happy to email it to you.
There seems to be some inconsistent trends*.
(Ref: http://www.lessdrag.com/lycomingpropeller.html )
A few things show up:
- Increasing RPM from 2500 to 2700 slows you down up to 6mph?**
(Prop efficiencies or not, at higher RPM you are making more HP.
Also, the data trend varies by altitude, going down, up and down again
for the same RPM and prop by altitude, ie no trend across altitudes.)
SPEED VS HP CALC
(**191mph * (106/101)
(1/3)= 194, should go 3 mph faster:
At 12,500 feet, 2500rpm=101hp; 2700=106; 191=speed at 2500rpm;
To go from 191 to 185 by increasing RPM 200 is like loosing 10HP.
Considering the engine is making 6 more HP, it is loosing 16hp or
12% prop efficiency? That is not likely at sub-sonic tip speeds.
TIP SPEED CALC
Tip speed at 200mph @ 2700rpm, 72" dia is 897 feet/sec.
Speed of sound 1070 ft/sec (12,500feet) so prop tips=Mach .83.
Anything under 950ft/sec is good or Mach .84 is OK.
There should be no drop off in speed for operation at 2700 which
is shown for the C2YK and MTV-15 metal blade. As a mater of
fact the thinner metal blade props should be more efficient at high
RPM than the thicker wood core props.
** (I understand that the prop may loose efficiency at higher RPM, but
6 mph? First you are making about 6 more HP by turning the engine 200 rpm
faster . The increased engine power overcomes prop efficiency loss. Also
the speed for 2500 to 2700 rpm change is positive at one altitude, negative
at another, than positive again at progressively higher altitudes?)
OTHER DATA:
By keeping the RPM the same and changing altitude you gain and loose
speed for the same prop? (Ref: MTV-12 and MTV-15 composite)
- At 2300/2400 RPM, you gain 6-7mph at 5,000 feet vs 2,500 and,
you lose 1-4 mph at 7,500 feet vs 5,000. In other words, why does
speed go up at 5K but down at 2.5K & 7.5K all things being the same?
I can see it dropping with the MAP, which is not mentioned in data,
but there should be no gain in speed going from 2,500 to 5,000 feet.
Taking 4 props and testing at 5 altitudes and 4 different RPMs, gives
80 data points. Assuming you were usig flight test methods, each data
point requires two or three data points to be taken to account for
wind. So we are looking at 240 data points. Not an easy thing to do.
The data scatter is understandable; That is why Van and others have
concentrated on just one altitude and one RPM to compare props no
doubt. The pseudo-standard, 8,000 feet, WOT, is a good way to make data
easy to compare. This is approx 75% power which is a good number.
Jim's vs Van's Data
The only comparison to draw from Jim's data and Van's test is at
7,500 feet, 2500 rpm between MTV-12(no B) and the Hartzell C2YK.
Jim shows the MT and HC-C2YK have the same speed, 197mph. Van's
data (MTV-12B?) showed the Hartzell was faster at 8,000 feet, 2500rpm,
WOT by 5mph (8mph faster with the new Hartzell2YR-1BF/F7496).
At 2,500 and 5,000 feet, Jim's data shows the Hartzell faster by 3-4mph.
At 10,000 and 12,500 feet the Hartzell 1mph faster or same as the MTV-12.
So between 5,000 and 7,500 feet the Hartzell lost its speed advantage, but
maintains the same speed or better above 7,500. I would expect some kind
of trend that was linear.
Thanks for the info Jim.
Cheers George
Time: 05:28:02 AM PST US
From: Kevin Horton <khorton01@rogers.com>
Subject: Re: RV-List: cruise performance test data listed
--> RV-List message posted by: Kevin Horton <khorton01@rogers.com>
>--> RV-List message posted by: LeastDrag93066@aol.com
>
>Hi All,
>
>Has anyone else that is flying with a CS propeller noticed that at a
> fixed altitude with full throttle the airspeed is almost constant even
> though the RPM is changed from 2700 RPM to 2200 RPM? The
> only significant change is the fuel flow.
>
> I just finished updating the performance information on my
> _www.lessdrag.com_(http://www.lessdrag.com) website on the
> "Lycoming 360 Propeller" page.
>
> For the Hartzell 2 blade propeller, the full throttle airspeed was 205
> mph tias at 2,500' at 2500 RPM and up. The full throttle airspeeds are
> not listed for 2400 and 2300 RPM, but they were 202 at 2400 RPM and
> 199 at 2300 RPM.
>
Jim - questions/comments:
I looked at my O-360A power spreadsheet, and it looks like the power
at 2300 rpm would be about 91% of the power at 2700 rpm. So,
assuming prop efficiency is constant, you would expect the speed at
2300 rpm to be about 97% of the speed at 2700 rpm. Your data,
averaged over all conditions from 5,000 ft to 12,500 feet for each
prop shows:
prop speed at 2300 rpm as percentage of speed at 2700 rpm
Hartzell 2 blade - 99.0%
MT 3 blade - 98.5%
MT 2 blade - 96.9%
MT Alum 2 blade - 100.4%
Average - 98.7%
But, the expected speed variation with the cube root of power assumes
that the prop efficiency remains constant. I have seen several
comments from people who race with our Hartzell props that they get
just as much speed at 2600 rpm as they do at 2700 rpm, which seems to
indicate that the prop efficiency may be falling off quite a bit as
the rpm increases. The prop efficiency data I have from Hartzell
does show a gradual decrease in prop efficiency with rpm. I ran the
numbers for 5000 ft, and if we take the decrease in prop efficiency
into account, we would expect the speed at 2300 rpm to be about 99%
of the speed at 2700 rpm, which is bang on your average for the
Hartzell.
Is your data repeatable over several flights? Or, is it possible
that you have "noisy" data?
Your results seem to be based on taking IAS, and converting to TAS.
Have you done any flight testing to calibrate your airspeeds? The
ASI instrument error and static source position error may both vary a
bit with speed.
--
Kevin Horton RV-8 (finishing kit)
Ottawa, Canada
http://www.kilohotel.com/rv8
---------------------------------
Message 2
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| Subject: | Re: Global Flyer |
--> RV-List message posted by: Mickey Coggins <mick-matronics@rv8.ch>
Amazing project, very disappointing website. I would have thought
that the ultimate showman and PR guru Richard Branson would have
chosen a web supplier that knew what they were doing. The
people running the aviation side of the project are clearly
more competent, thank goodness!
Doug Rozendaal wrote:
> --> RV-List message posted by: "Doug Rozendaal" <dougr@petroblend.com>
>
> The Global Flyer is in the air!
>
> http://www.virginatlanticglobalflyer.com/MissionControl/Tracking/
>
> Do not archive
>
--
Mickey Coggins
http://www.rv8.ch/
#82007 Wiring
do not archive
Message 3
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| Subject: | Re: cruise performance test data listed |
--> RV-List message posted by: Kevin Horton <khorton01@rogers.com>
I would be hesitant to draw any conclusions from comparing two test
points of Jim's data. The data appears to be "noisy", possibly due
to the standing waves that Jim mentioned. I'm convinced that the
exact results of any given test point could vary by several mph if
the test were done again. So, look at the broad trends, averaged
over the whole data pool. Don't focus on comparisons between any
particular test points.
Data is only useful if it is repeatable. That implies doing the same
test several times, on several different days to see how much the
results vary. The weather conditions can make quite a big
difference. Sometimes it can be almost impossible to know whether
you are in an area of slow lift or sink, which can make a huge
difference in the speed achieved in level flight. That is why it is
important to repeat the same data point on several different days.
Kevin Horton
>--> RV-List message posted by: <gmcjetpilot@yahoo.com>
>
>I did a spread sheet that plots Jim's prop data.
>
>If anyone wants a copy of the plots, I'll be happy to email it to you.
>There seems to be some inconsistent trends*.
>
>(Ref: http://www.lessdrag.com/lycomingpropeller.html )
>
>A few things show up:
>
>- Increasing RPM from 2500 to 2700 slows you down up to 6mph?**
>(Prop efficiencies or not, at higher RPM you are making more HP.
>Also, the data trend varies by altitude, going down, up and down again
>for the same RPM and prop by altitude, ie no trend across altitudes.)
>
>SPEED VS HP CALC
>(**191mph * (106/101)
>(1/3)= 194, should go 3 mph faster:
>At 12,500 feet, 2500rpm=101hp; 2700=106; 191=speed at 2500rpm;
>To go from 191 to 185 by increasing RPM 200 is like loosing 10HP.
>Considering the engine is making 6 more HP, it is loosing 16hp or
>12% prop efficiency? That is not likely at sub-sonic tip speeds.
>
>TIP SPEED CALC
>Tip speed at 200mph @ 2700rpm, 72" dia is 897 feet/sec.
>Speed of sound 1070 ft/sec (12,500feet) so prop tips=Mach .83.
>Anything under 950ft/sec is good or Mach .84 is OK.
>
>There should be no drop off in speed for operation at 2700 which
>is shown for the C2YK and MTV-15 metal blade. As a mater of
>fact the thinner metal blade props should be more efficient at high
>RPM than the thicker wood core props.
>
>** (I understand that the prop may loose efficiency at higher RPM, but
>6 mph? First you are making about 6 more HP by turning the engine 200 rpm
>faster . The increased engine power overcomes prop efficiency loss. Also
>the speed for 2500 to 2700 rpm change is positive at one altitude, negative
>at another, than positive again at progressively higher altitudes?)
>
>
>OTHER DATA:
>By keeping the RPM the same and changing altitude you gain and loose
>speed for the same prop? (Ref: MTV-12 and MTV-15 composite)
>- At 2300/2400 RPM, you gain 6-7mph at 5,000 feet vs 2,500 and,
>you lose 1-4 mph at 7,500 feet vs 5,000. In other words, why does
>speed go up at 5K but down at 2.5K & 7.5K all things being the same?
>
>I can see it dropping with the MAP, which is not mentioned in data,
>but there should be no gain in speed going from 2,500 to 5,000 feet.
>
>
>Taking 4 props and testing at 5 altitudes and 4 different RPMs, gives
> 80 data points. Assuming you were usig flight test methods, each data
>point requires two or three data points to be taken to account for
>wind. So we are looking at 240 data points. Not an easy thing to do.
>The data scatter is understandable; That is why Van and others have
>concentrated on just one altitude and one RPM to compare props no
>doubt. The pseudo-standard, 8,000 feet, WOT, is a good way to make data
>easy to compare. This is approx 75% power which is a good number.
>
>
>Jim's vs Van's Data
>The only comparison to draw from Jim's data and Van's test is at
>7,500 feet, 2500 rpm between MTV-12(no B) and the Hartzell C2YK.
>
>Jim shows the MT and HC-C2YK have the same speed, 197mph. Van's
>data (MTV-12B?) showed the Hartzell was faster at 8,000 feet, 2500rpm,
>WOT by 5mph (8mph faster with the new Hartzell2YR-1BF/F7496).
>At 2,500 and 5,000 feet, Jim's data shows the Hartzell faster by 3-4mph.
>At 10,000 and 12,500 feet the Hartzell 1mph faster or same as the MTV-12.
>So between 5,000 and 7,500 feet the Hartzell lost its speed advantage, but
>maintains the same speed or better above 7,500. I would expect some kind
>of trend that was linear.
>
>Thanks for the info Jim.
>
>Cheers George
>
>
>Time: 05:28:02 AM PST US
>From: Kevin Horton <khorton01@rogers.com>
>Subject: Re: RV-List: cruise performance test data listed
>
>--> RV-List message posted by: Kevin Horton <khorton01@rogers.com>
>
>>--> RV-List message posted by: LeastDrag93066@aol.com
>>
>>Hi All,
>>
>>Has anyone else that is flying with a CS propeller noticed that at a
>> fixed altitude with full throttle the airspeed is almost constant even
>> though the RPM is changed from 2700 RPM to 2200 RPM? The
>> only significant change is the fuel flow.
>>
>> I just finished updating the performance information on my
>> _www.lessdrag.com_(http://www.lessdrag.com) website on the
>> "Lycoming 360 Propeller" page.
>>
>> For the Hartzell 2 blade propeller, the full throttle airspeed was 205
>> mph tias at 2,500' at 2500 RPM and up. The full throttle airspeeds are
>> not listed for 2400 and 2300 RPM, but they were 202 at 2400 RPM and
>> 199 at 2300 RPM.
>>
>
>Jim - questions/comments:
>
>I looked at my O-360A power spreadsheet, and it looks like the power
>at 2300 rpm would be about 91% of the power at 2700 rpm. So,
>assuming prop efficiency is constant, you would expect the speed at
>2300 rpm to be about 97% of the speed at 2700 rpm. Your data,
>averaged over all conditions from 5,000 ft to 12,500 feet for each
>prop shows:
>
>prop speed at 2300 rpm as percentage of speed at 2700 rpm
>Hartzell 2 blade - 99.0%
>MT 3 blade - 98.5%
>MT 2 blade - 96.9%
>MT Alum 2 blade - 100.4%
>Average - 98.7%
>
>But, the expected speed variation with the cube root of power assumes
>that the prop efficiency remains constant. I have seen several
>comments from people who race with our Hartzell props that they get
>just as much speed at 2600 rpm as they do at 2700 rpm, which seems to
>indicate that the prop efficiency may be falling off quite a bit as
>the rpm increases. The prop efficiency data I have from Hartzell
>does show a gradual decrease in prop efficiency with rpm. I ran the
>numbers for 5000 ft, and if we take the decrease in prop efficiency
>into account, we would expect the speed at 2300 rpm to be about 99%
>of the speed at 2700 rpm, which is bang on your average for the
>Hartzell.
>
>Is your data repeatable over several flights? Or, is it possible
>that you have "noisy" data?
>
>Your results seem to be based on taking IAS, and converting to TAS.
>Have you done any flight testing to calibrate your airspeeds? The
>ASI instrument error and static source position error may both vary a
>bit with speed.
>--
>Kevin Horton RV-8 (finishing kit)
>Ottawa, Canada
>http://www.kilohotel.com/rv8
>
Message 4
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| Subject: | Hanger or Garage |
--> RV-List message posted by: "Dana Overall" <bo124rs@hotmail.com>
Oh Man, built my first one in a hangar and the RV at home. Opt for home
everytime. Way too many advantages to mention.
Work at the hangar..............get rid of wife one...............stay at
home and keep the one I have.............current plan (and this one even
loves airplanes, ask Mike Stewart he took her 8 flying Sat. with loops,
rolls, hammerheads....course those were clear air turbulant recoveries:-)
Rent the hangar but build at home.
Dana Overall
Richmond, KY i39
RV-7 slider, Imron black, "Black Magic"
Finish kit
13B Rotary. Hangar flying my Dynon.
http://rvflying.tripod.com/aero1.jpg
http://rvflying.tripod.com/aero3.jpg
http://rvflying.tripod.com/blackrudder.jpg
do not archive
Message 5
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| Subject: | Paging Stein Bruch |
--> RV-List message posted by: "Dana Overall" <bo124rs@hotmail.com>
>From: "DEAN PSIROPOULOS" <dean.psiropoulos@verizon.net>
>
>So...I'll try the public forum, I just saw you here the other night and I
>know you're lurking. I got to thinking about your harnesses.
Just a quick note about Stein's harness. I LOVE MINE!! The harness I
received, and install, is a work of art. The attention to detail is
obvious. Save yourself time, money and headaches......have a fellow RVer do
your harness.
Give Stein a call.
Movie at 11
Dana Overall
Richmond, KY i39
RV-7 slider, Imron black, "Black Magic"
Finish kit
13B Rotary. Hangar flying my Dynon.
http://rvflying.tripod.com/aero1.jpg
http://rvflying.tripod.com/aero3.jpg
http://rvflying.tripod.com/blackrudder.jpg
do not archive
Message 6
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| Subject: | RV-6 fuselage kt?? |
--> RV-List message posted by: Morley Bullock <bullockm@shaw.ca>
Hi all,
I am new to the list and was wondering if anyone has an older RV-6 fuselage
kit they would like to get rid of. Maybe someone wants to go with a quick
build instead. We have two projects on the go but are short one fuselage.
Thanks in advance for your help,
Morley
Message 7
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--> RV-List message posted by: Wheeler North <wnorth@sdccd.edu>
Kim,
not sure your fuel smell question got answered.
Is most probably the upper oring in the vans fuel valve.
These valves come apart easily by taking the upper nut off, make sure your
fuel level is below the valve height though. Then lube the oring and valve
with some fuel lube and it will most likely fix the weep.
I can always tell it needs it when I smell fuel after switching tanks. I've
done this about three times in the last 800 hours.
Its kinda like flap motor cleanings...
W
Message 8
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| Subject: | full take off power |
--> RV-List message posted by: Wheeler North <wnorth@sdccd.edu>
Scotty,
what makes you think that EGT data came from full take off power settings?
It looked to me like Doug was in a stabilized cruise.
W
Message 9
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--> RV-List message posted by: "G. Booze" <macbooze@earthlink.net>
Listers:
For sale .... KX-155 w/o GS (yellow tagged) $1150.00
Contact me off-list.
Greg
RV-8 finishing
Message 10
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| Subject: | RV-6 fuselage kt?? |
--> RV-List message posted by: "RV6 Flyer" <rv6_flyer@hotmail.com>
Morley:
An RV-6A QB complete kit moved to my hangar for stagging to be sold on
Sunday. If anyone is interested, email me and I can send some details. It
will be advertised for $24K US later this week. Project incudes electric
elevator trim, electric flaps, 2 Wheelen wing tip strobe powersupplies,
Duckworth landing lights, Heated pitot, FAB O-360.
Project can be viewed at Cable Airport, Upland, CA.
I have some photos at home but have not taken them out of the camera yet. I
can give you OWNER contact info when I get home.
DO NOT ARCHIVE
Gary A. Sobek
"My Sanity" RV-6 N157GS O-320 Hartzell,
1,636 + Flying Hours So. CA, USA
http://SoCAL_WVAF.rvproject.com
----Original Message Follows----
From: Morley Bullock <bullockm@shaw.ca>
Subject: RV-List: RV-6 fuselage kt??
--> RV-List message posted by: Morley Bullock <bullockm@shaw.ca>
Hi all,
I am new to the list and was wondering if anyone has an older RV-6 fuselage
kit they would like to get rid of. Maybe someone wants to go with a quick
build instead. We have two projects on the go but are short one fuselage.
Thanks in advance for your help,
Morley
Message 11
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| Subject: | F.I. to FAB Spacer |
--> RV-List message posted by: "Neil McLeod" <bedrock@theriver.com>
Listers,
I=92m looking for someone to machine a spacer to go in between the Bendix
servo and the FAB. I=92m looking for a =BE=94 thick aluminum spacer with a flared
inlet. I=92m not CAD literate but can fax or scan a drawing.
Thanks
Neil McLeod
RV-7, Bisbee, AZ
Message 12
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| From: | "Wayne @ Aircraft Engravers" <wayne@engravers.net> |
| Subject: | Re: panel label engraving with back lighting |
--> RV-List message posted by: "Wayne @ Aircraft Engravers" <wayne@engravers.net>
Brian,
Thanks for the post. How are they working out? I guess they must be doing OK
if you recommended Aircraft Engravers.
Wayne Cahoon
Aircraft Engravers
(860) 653-2780
(860) 653-7324 Fax
http://www.engravers.net
----- Original Message -----
From: "Brian Kraut" <brian.kraut@engalt.com>
Subject: RE: RV-List: panel label engraving with back lighting
> --> RV-List message posted by: "Brian Kraut" <brian.kraut@engalt.com>
>
> Wayne at Aircraft Engravers, www.engravers.net, does a great job on the
> engraving. I had some of his labels with a custom fiber optic back light
> that I made.
>
> Brian Kraut
> Engineering Alternatives, Inc.
> www.engalt.com
>
> -----Original Message-----
> From: owner-rv-list-server@matronics.com
> [mailto:owner-rv-list-server@matronics.com]On Behalf Of Wayne Pedersen
> To: RV-List@matronics.com
> Subject: RV-List: panel label engraving with back lighting
>
>
> --> RV-List message posted by: "Wayne Pedersen"
> <wayne@pedersentransport.com>
>
> Looking for a supplier that has panel labels that are engravable and then
> a
> light(s) inserted into back of plastic. This little lite would illuminate
> all areas that are engraved.
>
> Thanks
>
> Wayne
> -7a panel
>
>
> --
> No virus found in this outgoing message.
> Checked by AVG Anti-Virus.
>
>
>
Message 13
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| Subject: | Teflon tape on gas line thread, OK?? |
--> RV-List message posted by: "Charles Heathco" <cheathco@comcast.net>
I Just got my OH carb in and have taken the gas line conn's off the core, and
am getting ready to put them on the new one. Teflon tape had been used on the
old conn's, I assume that is what I should use on them again? Charlie heathco
LZU
Message 14
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| Subject: | Re: Teflon tape on gas line thread, OK?? |
--> RV-List message posted by: "Jeff Dowling" <shempdowling2@earthlink.net>
Ive been told never to use teflon on fuel or hydraulic lines due to the
fluids will eventually disolve the tape and can cause a blockage in your
line. Im waiting to hear a more definitive answer.
Shemp/Jeff Dowling
RV-6A, N915JD
165 hours
Chicago/Louisville
----- Original Message -----
From: "Charles Heathco" <cheathco@comcast.net>
Subject: RV-List: Teflon tape on gas line thread, OK??
> --> RV-List message posted by: "Charles Heathco" <cheathco@comcast.net>
>
> I Just got my OH carb in and have taken the gas line conn's off the core,
> and am getting ready to put them on the new one. Teflon tape had been used
> on the old conn's, I assume that is what I should use on them again?
> Charlie heathco LZU
>
>
>
Message 15
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|
| Subject: | #4 ELT panel mounting screws |
--> RV-List message posted by: "Wayne Pedersen" <wayne@pedersentransport.com>
I am trying to mount my ACK ELT head on the panel and need #4 brass screws.
I have found reference in the archives but get an error message saying it
cant open the '02 archive.
I cant find any #4 brass at ACS, Wag Aero, Wicks - anybody have any other
suggestions ?
Wayne
RV7a - panel
--
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Message 16
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| Subject: | Re: Teflon tape on gas line thread, OK?? |
--> RV-List message posted by: Sam Buchanan <sbuc@hiwaay.net>
Charles Heathco wrote:
> --> RV-List message posted by: "Charles Heathco"
> <cheathco@comcast.net>
>
> I Just got my OH carb in and have taken the gas line conn's off the
> core, and am getting ready to put them on the new one. Teflon tape
> had been used on the old conn's, I assume that is what I should use
> on them again? Charlie heathco LZU
No, no, NO!!!!!!!! Was that emphatic enough? :-)
Use Teflon pipe dope if you wish but *definitely* not tape. Guess what
could happen if a sliver of the tape made its way to a carb jet......
Sam Buchanan
Message 17
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| Subject: | Re: Teflon tape on gas line thread, OK?? |
--> RV-List message posted by: "Dale Ensing" <densing@carolina.rr.com>
Charlie,
Teflon tape is not recomneded on any fuel line connections. A piece of the
tape may tear off and get into the fuel sustem. Use the Teflon paste.
Dale Ensing
----- Original Message -----
From: "Charles Heathco" <cheathco@comcast.net>
Subject: RV-List: Teflon tape on gas line thread, OK??
> --> RV-List message posted by: "Charles Heathco" <cheathco@comcast.net>
>
> I Just got my OH carb in and have taken the gas line conn's off the core,
and am getting ready to put them on the new one. Teflon tape had been used
on the old conn's, I assume that is what I should use on them again? Charlie
heathco LZU
>
>
Message 18
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|
| Subject: | Re: #4 ELT panel mounting screws |
--> RV-List message posted by: Jeff Point <jpoint@mindspring.com>
I found some at the hardware store. Good ol' Aircraft Components and
Equipment (they shorten it to ACE.)
Jeff Point
>I cant find any #4 brass at ACS, Wag Aero, Wicks - anybody have any other
>suggestions ?
>
>
>
>
Message 19
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| Subject: | Re: Teflon tape on gas line thread, OK?? |
--> RV-List message posted by: "Jim Jewell" <jjewell@telus.net>
Hi Jeff,
I don't think the concern is so much about Teflon tape dissolving.
The bad guy that can get you is more to do with the risk of wrapping the
Teflon on the threads too close to the first threads so that bits of crushed
Teflon get pushed into the fuel or hydraulic stream and wind up in the
workings of the fuel or hydraulic system.
Also, even if threads are wrapped and installed so that the above risk is
minimised or avoided, the risk of getting crumbled Teflon material into the
system during later servicing raises it's ugly head.
Regardless of what sealant is used the potential of introducing foreign
materials during service or annual assembly disassembly and re-assembly is
something to watch out for.
One bit of said foreign material nesting somewhere in the system can make
for some confusing trouble shooting or spoil your day at the very least!
{[8-!
There may well be other concerns out there but the above examples should be
cause enough for caution and the adoption of good safe practices.
Jim in Kelowna
----- Original Message -----
From: "Jeff Dowling" <shempdowling2@earthlink.net>
Subject: Re: RV-List: Teflon tape on gas line thread, OK??
> --> RV-List message posted by: "Jeff Dowling"
> <shempdowling2@earthlink.net>
>
> Ive been told never to use teflon on fuel or hydraulic lines due to the
> fluids will eventually disolve the tape and can cause a blockage in your
> line. Im waiting to hear a more definitive answer.
>
> Shemp/Jeff Dowling
> RV-6A, N915JD
> 165 hours
> Chicago/Louisville
>
>
> ----- Original Message -----
> From: "Charles Heathco" <cheathco@comcast.net>
> To: <rv-list@matronics.com>
> Subject: RV-List: Teflon tape on gas line thread, OK??
>
>
>> --> RV-List message posted by: "Charles Heathco" <cheathco@comcast.net>
>>
>> I Just got my OH carb in and have taken the gas line conn's off the
>> core,
>> and am getting ready to put them on the new one. Teflon tape had been
>> used
>> on the old conn's, I assume that is what I should use on them again?
>> Charlie heathco LZU
>>
>>
>>
>
>
>
Message 20
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|
| Subject: | Re: Teflon tape on gas line thread, OK?? |
--> RV-List message posted by: "JOHN STARN" <jhstarn@verizon.net>
Amen on the "no tape" post. AND regardless of what you do use (fuel
lube-pipe dope-etc) put it lightly only on the male threads. Anything you
put inside the female end will be forced into the flow area of the line. Any
dope on the female threads will form a donut at the end of the male
connector as it is threaded in. Fuel Lube dosen't desolve but pieces of a
"sealent donut" can "gum-up" jets and/or injectors on IO- engines. I didn't
stay at a Holiday Inn last night but I am a Plumbling A/C contractor with
30+ years of joining pipe & fittings. KABONG (GBA & GWB) Do Not Archive
----- Original Message -----
From: "Sam Buchanan" <sbuc@hiwaay.net>
Subject: Re: RV-List: Teflon tape on gas line thread, OK??
> --> RV-List message posted by: Sam Buchanan <sbuc@hiwaay.net>
>
> Charles Heathco wrote:
>> --> RV-List message posted by: "Charles Heathco"
>> <cheathco@comcast.net>
>>
>> I Just got my OH carb in and have taken the gas line conn's off the
>> core, and am getting ready to put them on the new one. Teflon tape
>> had been used on the old conn's, I assume that is what I should use
>> on them again? Charlie heathco LZU
>
>
> No, no, NO!!!!!!!! Was that emphatic enough? :-)
>
> Use Teflon pipe dope if you wish but *definitely* not tape. Guess what
> could happen if a sliver of the tape made its way to a carb jet......
Message 21
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|
| Subject: | Re teflon tape no no. |
--> RV-List message posted by: "Charles Heathco" <cheathco@comcast.net>
Ok, I thought I had seen or heard something about it being the wrong thing to do.
I have Teflon pipe dope paste that I use on nat gas and water lines, that will
be good wont it? Charlie
Message 22
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|
| Subject: | Re: Teflon tape on gas line thread, OK?? |
--> RV-List message posted by: luckymacy@comcast.net (lucky)
Didn't Dan Checkoway post that the pacific oil cooler people told him to put teflon
tape on his AN fittings on the oil cooler?
-------------- Original message --------------
> --> RV-List message posted by: "JOHN STARN"
>
> Amen on the "no tape" post. AND regardless of what you do use (fuel
> lube-pipe dope-etc) put it lightly only on the male threads. Anything you
> put inside the female end will be forced into the flow area of the line. Any
> dope on the female threads will form a donut at the end of the male
> connector as it is threaded in. Fuel Lube dosen't desolve but pieces of a
> "sealent donut" can "gum-up" jets and/or injectors on IO- engines. I didn't
> stay at a Holiday Inn last night but I am a Plumbling A/C contractor with
> 30+ years of joining pipe & fittings. KABONG (GBA & GWB) Do Not Archive
>
> ----- Original Message -----
> From: "Sam Buchanan"
> To:
> Subject: Re: RV-List: Teflon tape on gas line thread, OK??
>
>
> > --> RV-List message posted by: Sam Buchanan
> >
> > Charles Heathco wrote:
> >> --> RV-List message posted by: "Charles Heathco"
> >>
> >>
> >> I Just got my OH carb in and have taken the gas line conn's off the
> >> core, and am getting ready to put them on the new one. Teflon tape
> >> had been used on the old conn's, I assume that is what I should use
> >> on them again? Charlie heathco LZU
> >
> >
> > No, no, NO!!!!!!!! Was that emphatic enough? :-)
> >
> > Use Teflon pipe dope if you wish but *definitely* not tape. Guess what
> > could happen if a sliver of the tape made its way to a carb jet......
>
>
>
>
>
>
Didn't Dan Checkoway post that the pacific oil cooler people told him to put teflon
tape on his AN fittings on the oil cooler?
-------------- Original message --------------
-- RV-List message posted by: "JOHN STARN" <JHSTARN@VERIZON.NET>
Amen on the "no tape" post. AND regardless of what you do use (fuel
lube-pipe dope-etc) put it lightly only on the male threads. Anything you
put inside the female end will be forced into the flow area of the line. Any
dope on the female threads will form a donut at the end of the male
connector as it is threaded in. Fuel Lube dosen't desolve but pieces of a
"sealent donut" can "gum-up" jets and/or injectors on IO- engines. I didn't
stay at a Holiday Inn last night but I am a Plumbling A/C contractor with
30+ years of joining pipe fittings. KABONG (GBA GWB) Do Not Archive
----- Original Message -----
From: "Sam Buchanan" <SBUC@HIWAAY.NET>
To: <RV-LIST@MATRONICS.COM>
Subject: Re: RV-List: Teflon tape on gas line thread, OK??
-- RV-List message posted by: Sam Buchanan <SBUC@HIWAAY.NET>
Charles Heathco wrote:
-- RV-List message posted by: "Charles Heathco"
<CHEATHCO@COMCAST.NET>
I Just got my OH carb in and have taken the gas line conn's off the
core, and am getting ready to put them on the new one. Teflon tape
had been used on the old conn's, I assume that is what I should use
on them again? Charlie heathco LZU
No, no, NO!!!!!!!! Was that emphatic enough? :-)
Use Teflon pipe dope if you wish but *definitely* not tape. Guess what
could happen if a sliver of the tape made its way to a carb jet......
================================================================
Message 23
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|
| Subject: | Re: Teflon tape on gas line thread, OK?? |
--> RV-List message posted by: "Dan Checkoway" <dan@rvproject.com>
> Didn't Dan Checkoway post that the pacific oil cooler people>
> told him to put teflon tape on his AN fittings on the oil cooler?
Yep. They told me they use teflon tape on all their oil fittings. Don't
shoot the messenger... ;-)
In case you want another data point for the file, I use:
- FUEL system pipe threads: EZ-Turn
- BRAKE system pipe threads: teflon PST
- PITOT/STATIC system pipe threads: teflon PST
- OIL system pipe threads: teflon PST, teflon tape, Permatex #2
- FLARED fittings: NADA! ZIP! ZERO! NOTHING! ZILCH!
)_( Dan
RV-7 N714D
http://www.rvproject.com
----- Original Message -----
From: "lucky" <luckymacy@comcast.net>
Subject: Re: RV-List: Teflon tape on gas line thread, OK??
> --> RV-List message posted by: luckymacy@comcast.net (lucky)
>
> -------------- Original message --------------
>
> > --> RV-List message posted by: "JOHN STARN"
> >
> > Amen on the "no tape" post. AND regardless of what you do use (fuel
> > lube-pipe dope-etc) put it lightly only on the male threads. Anything
you
> > put inside the female end will be forced into the flow area of the line.
Any
> > dope on the female threads will form a donut at the end of the male
> > connector as it is threaded in. Fuel Lube dosen't desolve but pieces of
a
> > "sealent donut" can "gum-up" jets and/or injectors on IO- engines. I
didn't
> > stay at a Holiday Inn last night but I am a Plumbling A/C contractor
with
> > 30+ years of joining pipe & fittings. KABONG (GBA & GWB) Do Not Archive
> >
> > ----- Original Message -----
> > From: "Sam Buchanan"
> > To:
> > Subject: Re: RV-List: Teflon tape on gas line thread, OK??
> >
> >
> > > --> RV-List message posted by: Sam Buchanan
> > >
> > > Charles Heathco wrote:
> > >> --> RV-List message posted by: "Charles Heathco"
> > >>
> > >>
> > >> I Just got my OH carb in and have taken the gas line conn's off the
> > >> core, and am getting ready to put them on the new one. Teflon tape
> > >> had been used on the old conn's, I assume that is what I should use
> > >> on them again? Charlie heathco LZU
> > >
> > >
> > > No, no, NO!!!!!!!! Was that emphatic enough? :-)
> > >
> > > Use Teflon pipe dope if you wish but *definitely* not tape. Guess what
> > > could happen if a sliver of the tape made its way to a carb jet......
> >
> >
> >
> >
> >
> >
>
> Didn't Dan Checkoway post that the pacific oil cooler people told him to
put teflon tape on his AN fittings on the oil cooler?
> -------------- Original message --------------
>
> -- RV-List message posted by: "JOHN STARN" <JHSTARN@VERIZON.NET>
>
> Amen on the "no tape" post. AND regardless of what you do use (fuel
> lube-pipe dope-etc) put it lightly only on the male threads. Anything you
> put inside the female end will be forced into the flow area of the line.
Any
> dope on the female threads will form a donut at the end of the male
> connector as it is threaded in. Fuel Lube dosen't desolve but pieces of a
> "sealent donut" can "gum-up" jets and/or injectors on IO- engines. I
didn't
> stay at a Holiday Inn last night but I am a Plumbling A/C contractor with
> 30+ years of joining pipe fittings. KABONG (GBA GWB) Do Not Archive
>
> ----- Original Message -----
> From: "Sam Buchanan" <SBUC@HIWAAY.NET>
>
> To: <RV-LIST@MATRONICS.COM>
> Subject: Re: RV-List: Teflon tape on gas line thread, OK??
>
>
> -- RV-List message posted by: Sam Buchanan <SBUC@HIWAAY.NET>
>
> Charles Heathco wrote:
> -- RV-List message posted by: "Charles Heathco"
> <CHEATHCO@COMCAST.NET>
>
> I Just got my OH carb in and have taken the gas line conn's off the
> core, and am getting ready to put them on the new one. Teflon tape
> had been used on the old conn's, I assume that is what I should use
> on them again? Charlie heathco LZU
>
>
> No, no, NO!!!!!!!! Was that emphatic enough? :-)
>
> Use Teflon pipe dope if you wish but *definitely* not tape. Guess what
> could happen if a sliver of the tape made its way to a carb jet......
>
>
> ================================================================
>
>
Message 24
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|
| Subject: | Re: Cruise performance data |
--> RV-List message posted by: <gmcjetpilot@yahoo.com>
> RV-List message posted by: Scott Bilinski <bilinski@kyocera-wireless.com>
> One thing that has not been mentioned here is that the MT shines at cruise power
settings.
I am not sure what you mean Scott. I think that is what Jim is trying to imply
but I don't see it. What do you mean by "shines at cruise power".
No offense to all Jim's hard work, but other "cruise power test" show that a MTV-12
is slower by 5-8 mph at cruise altitude and power settings.
As far as the MTV-12-B/183-59d vs -59 blade that Van sells I can't address. May
be Jim can tell us what the difference is.
I respect Jim's opinion but don't share the same enthusiasm for three blade props
on RV's. Two blade props on RV's are 72"-74" dia. The big advantage of going
to 3 blades on some planes is the 2 blade version has very large diameters 80-95".
Going to 3 blades with a smaller diameter makes the prop more quite and
improves prop tip clearance. Don't get me wrong, there are advantages to 3 blades
and composites materials, but speed / cruise efficiency is not one of them.
In general more blades are not more efficient and thicker blades are not more efficient,
both theoretically and in practice. MT blades need to be made thicker
than metal blades because of the wood core. That is OK but not as efficient
as thinner blades. However, wood core has lots of advantages, like not having
mid range engine RPM limits and reported smoother operation by some pilots.
Again if anyone wants a copy of Jim's data plotted out, you can see some "scatter."
I respect Jim's effort, and it is very hard to get good data in one session
for one data point, much less 80 data points, each requiring at least 2 or
3 measurements. Unless the -59b is radically different I think the difference
in speed between the traditional Hartzell is going to be at least 5 mph or more
across the board. Three different sources have found the MTV12 to be slower
than the Hartzell. The difference is even greater, about 8 mph, with the new Blended
Airfoil Hartzell. Other issue of cost and smoothness is an individual choice.
I am happy with the feel of my metal prop, performance and lower cost.
Flame Retardant: I think MT props are the greatest, just not for me. As one writer
posted " I would Lothe putting a Hartzell on my plane." So I know people have
strong opinions using words like lothe (hatred, abhorrence; disgust). Myself,
I would not mind a MT prop but like the Hartzell overall and have good experience
with it.
Fire Extinguisher: As far picking on Jim, I am not. However I need to have more
information when I read data on how, when, where flight test data is taken and
used in results. To get good flight conditions on one day is not easy. Jim no
doubt took several days to test 4 different props over many weeks/months(?),
presumably on one plane. The difference in conditions can affect the data. Method
of determining TAS is ripe with potential errors, GPS or no GPS. GPS can
have update errors itself, although small, it is there. Last I applaud Jim's effort,
but must be taken in context of several other prop "fly-offs". I am not
debating what is the best prop, there is no answer to that IMHO, but only questioning
the accurate collection data and flight test methods in general and the
data Jim has developed in particular.
Cheers George
---------------------------------
Message 25
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|
| Subject: | Re: Teflon tape on gas line thread, OK?? |
--> RV-List message posted by: "JOHN STARN" <jhstarn@verizon.net>
That could be BUT I use teflon "tape" when fitting threaded plastic to
plastic fittings like lawn sprinkler systems. Also use it on screw DWV
(Drain, Waste & Vent) pipe. The tape method will fill larger gaps better
than the dope BUT I've found that these larger gaps are nornally on plastic
threads. If I had a gap problem with metal threads I'd use another fitting.
KABONG Do Not Archive
---- Original Message -----
From: "lucky" <luckymacy@comcast.net>
Subject: Re: RV-List: Teflon tape on gas line thread, OK??
> --> RV-List message posted by: luckymacy@comcast.net (lucky)
>
> Didn't Dan Checkoway post that the pacific oil cooler people told him to
> put teflon tape on his AN fittings on the oil cooler?
> -------------- Original message --------------
>
>> --> RV-List message posted by: "JOHN STARN"
>>
>> Amen on the "no tape" post. AND regardless of what you do use (fuel
>> lube-pipe dope-etc) put it lightly only on the male threads. Anything you
Message 26
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|
| Subject: | Re: #4 ELT panel mounting screws |
--> RV-List message posted by: Dave Bristol <dbris200@sbcglobal.net>
Why would you want brass screws? Use regular steel screws or stainless,
they won't affect your compass. Almost every instrument and radio in
your panel has ferrous metal in it. The screws that hold them in are
not going to bother anything unless they are VERY close to the compass.
Dave
Wayne Pedersen wrote:
>--> RV-List message posted by: "Wayne Pedersen" <wayne@pedersentransport.com>
>
>I am trying to mount my ACK ELT head on the panel and need #4 brass screws.
>I have found reference in the archives but get an error message saying it
>cant open the '02 archive.
>I cant find any #4 brass at ACS, Wag Aero, Wicks - anybody have any other
>suggestions ?
>
>Wayne
>RV7a - panel
>
>
>
>
Message 27
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|
| Subject: | Re: Vans Fuel Valve |
--> RV-List message posted by: Dave Bristol <dbris200@sbcglobal.net>
If you have any seepage from the tanks, it will migrate into the cockpit
also. I've had it twice so far. Goes away when you get some air moving.
Dave
Wheeler North wrote:
>--> RV-List message posted by: Wheeler North <wnorth@sdccd.edu>
>
>Kim,
>
>not sure your fuel smell question got answered.
>
>Is most probably the upper oring in the vans fuel valve.
>
>These valves come apart easily by taking the upper nut off, make sure your
>fuel level is below the valve height though. Then lube the oring and valve
>with some fuel lube and it will most likely fix the weep.
>
>I can always tell it needs it when I smell fuel after switching tanks. I've
>done this about three times in the last 800 hours.
>
>Its kinda like flap motor cleanings...
>
>W
>
>
>
>
Message 28
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|
| Subject: | Re: Teflon tape on gas line thread, OK?? |
--> RV-List message posted by: "cgalley" <cgalley@qcbc.org>
The threads going into your new clean carb are free of tape. You can use
the old screw in fittings as one can see to completely clean the male
threads. It is the female threads that hide the problem old tape particles
so you should be in good shape.
Just don't use the Tape again.
Cy Galley - Chair,
AirVenture Emergency Aircraft Repair
A Service Project of Chapter 75
EAA Safety Programs Editor - TC
EAA Sport Pilot
----- Original Message -----
From: "Charles Heathco" <cheathco@comcast.net>
Subject: RV-List: Teflon tape on gas line thread, OK??
> --> RV-List message posted by: "Charles Heathco" <cheathco@comcast.net>
>
> I Just got my OH carb in and have taken the gas line conn's off the core,
> and am getting ready to put them on the new one. Teflon tape had been used
> on the old conn's, I assume that is what I should use on them again?
> Charlie heathco LZU
>
>
>
Message 29
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| Subject: | Re: #4 ELT panel mounting screws |
--> RV-List message posted by: "cgalley" <cgalley@qcbc.org>
Hardware store
----- Original Message -----
From: "Wayne Pedersen" <wayne@pedersentransport.com>
Subject: RV-List: #4 ELT panel mounting screws
> --> RV-List message posted by: "Wayne Pedersen"
> <wayne@pedersentransport.com>
>
> I am trying to mount my ACK ELT head on the panel and need #4 brass
> screws.
> I have found reference in the archives but get an error message saying it
> cant open the '02 archive.
> I cant find any #4 brass at ACS, Wag Aero, Wicks - anybody have any other
> suggestions ?
>
> Wayne
> RV7a - panel
>
>
> --
> No virus found in this outgoing message.
> Checked by AVG Anti-Virus.
>
>
>
Message 30
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| Subject: | Re: Teflon tape on gas line thread, OK?? |
--> RV-List message posted by: "cgalley" <cgalley@qcbc.org>
If Teflon tape would disolve in gas, oil or 5606, everything would be o.k.
It doesn't and there in lies the problem. I wrote a rather lengthy article
in the February 2005 of Sport Pilot. And here is the text...
To Tape or Not to Tape; That is the question!
What do you do as a Technical Counselor when you find the builder has used
Teflonr tape on his pipe fittings? Think about this question after you read
the entire article.
I routinely discourage the Teflon tape. Don't get me wrong. Teflon tape is a
great product for water pipe and air compressor fittings. It makes the
tightening and sealing of pipe fittings easy as it reduces the necessary
torque to make the seal. The tape is unaffected by most chemicals and will
not dissolve in water, gasoline or fuel oil. The application is clean as it
doesn't run, drip, or transfer to your hands or clothing.
So what's not to like? The fact that it doesn't dissolve is the real
problem. Any particle of tape that gets into the system can and will plug
small openings. If the tape is applied correctly so that the first thread is
not covered, then a piece of tape will not shear off and get into the system
THIS time. Many people have done this without a problem.
BUT if the fitting using the tape is ever removed and re-installed, the tape
shards from the first use are in the fitting threads. It is easy to clean
the male fitting as you can see when you have it all removed. It is almost
impossible to remove the tape remains from the female internal threads. Any
pieces that are missed get forced into your system when the fitting
re-assembled. They will be circulated through the system whether it is fuel,
oil, air or vacuum until these pieces get to a small opening, like a carb
jet. It will plug it up. The engine will stop, or not get proper
lubrication.
I understand that a small piece of tape will cause the malfunction and
destruction of a vacuum pump. Every replacement pump comes with a warning
that the warrantee is void if you use Teflon tape or any other sealer.
Upon checking with several FAA certified mechanics, their recommendation is
that ALL fittings are asembled dry to avoid any possible system
contamination. If it leaks, then get a different fitting.
Now back to the first question. You found Teflon tape usage. Now what? If
installed ONCE correctly, it will probably not create a problem. But has the
builder installed it correctly? If you remove to check it, then the cleaning
problem arises and might create a problem when none existed before. Would
it be better to "fix" the problem before the re-install problem happens in
the field? This is the builder's dilemma.
So for now, Just say no to Teflon Tape. It's benefits are not enough to
out-weigh the un-safe conditions it can create.
Cy Galley
EAA Safety Programs Editor
Always looking for ideas and articles for EAA Sport Pilot
----- Original Message -----
From: "Jeff Dowling" <shempdowling2@earthlink.net>
Subject: Re: RV-List: Teflon tape on gas line thread, OK??
> --> RV-List message posted by: "Jeff Dowling"
> <shempdowling2@earthlink.net>
>
> Ive been told never to use teflon on fuel or hydraulic lines due to the
> fluids will eventually disolve the tape and can cause a blockage in your
> line. Im waiting to hear a more definitive answer.
>
> Shemp/Jeff Dowling
> RV-6A, N915JD
> 165 hours
> Chicago/Louisville
>
>
> ----- Original Message -----
> From: "Charles Heathco" <cheathco@comcast.net>
> To: <rv-list@matronics.com>
> Subject: RV-List: Teflon tape on gas line thread, OK??
>
>
>> --> RV-List message posted by: "Charles Heathco" <cheathco@comcast.net>
>>
>> I Just got my OH carb in and have taken the gas line conn's off the
>> core,
>> and am getting ready to put them on the new one. Teflon tape had been
>> used
>> on the old conn's, I assume that is what I should use on them again?
>> Charlie heathco LZU
>>
>>
>>
>
>
>
Message 31
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--> RV-List message posted by: "Paul Besing" <paul@kitlog.com>
Finally, after months of development, we have released
version 2.0.
KitLog Pro has had a complete overhaul, new features,
and completely re-written in a new, more stable
language. Because of this new format, existing KitLog
Pro customers will not be able to upgrade at this
time. We are working on an upgrade program that will
convert the old version to the new. This should be
out very soon.
If you have not yet seen it, check out our new
website, www.kitlog.com There you will find out about
all the features of the new version.
Paul Besing
RV-6A Sold
RV-10 Soon
Kitlog Builder's Software
www.kitlog.com
do not archive
Message 32
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| Subject: | New Van's RV-12? |
--> RV-List message posted by: "Jerry Hansen" <jerry-hansen@cox.net>
Can this be the next RV?
<http://www.midcountyrc.com/videocorner/AFPD.wmv>
http://www.midcountyrc.com/videocorner/AFPD.wmv
Message 33
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| Subject: | Re: RV-List Digest: 0-320 E2D hiccups |
--> RV-List message posted by: "Bob 1" <rv3a.1@comcast.net>
> --> RV-List message posted by: PSPRV6A@aol.com
>
> If the hiccups are very slight, here is a possible explanation: I flew
> this exact engine for 1,000 hours in my 172 and always observed those very
> slight "hiccups" when cruising at lean mixture. It is MUCH less than a
cylinder
> missfire. I believe it is a random misfire of one of the two plugs due to
the
> mixture not being perfect at that plug, happening about one time per
thousand
> firings. That will produce a very slight reduction in power from that
> cylinder, that cycle. This was totally predictible when cruising with
very lean
> mixture. No harm done!
> Paul S. Petersen Minnetonka MN, RV6A with son
> Eric, 90% complete
=========================
My vote, also, is for a sometime lean condition in at least one cylinder.
Causes can vary.
The annoying hiccups in my RV-3 was traced to the early version ram air.
After a year of scratching my head, a minor modification resolved the issue.
Bob
do not archive
Message 34
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| Subject: | Re: New Van's RV-12? |
--> RV-List message posted by: Dave Bristol <dbris200@sbcglobal.net>
Do it all the time in my 6. (:
)
please! do not archive
Jerry Hansen wrote:
>--> RV-List message posted by: "Jerry Hansen" <jerry-hansen@cox.net>
>
>
>Can this be the next RV?
>
>
> <http://www.midcountyrc.com/videocorner/AFPD.wmv>
>http://www.midcountyrc.com/videocorner/AFPD.wmv
>
>
>
>
Message 35
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| Subject: | Re: New Van's RV-12? |
--> RV-List message posted by: Matt Dralle <dralle@matronics.com>
>--> RV-List message posted by: "Jerry Hansen" <jerry-hansen@cox.net>
>
>Can this be the next RV?
>
>http://www.midcountyrc.com/videocorner/AFPD.wmv
Listers,
Now that you've watched this awesome video, realize that this ISN'T a real
video of a real Radio Controlled model airplane!! Yes, that's what I
said. Any of you that have your roots in Radio Controlled airplanes no
doubt watched in amazement wondering just how someone could fly like
that. Well, guess what... This is actually a 3D Graphics simulator for the
PC. Yup, that's right!! I was blown away. I kept wondering how they
could fly a plane like that, especially when they bounced it off the tail
in the one scene where it was in hover flight. The other give away is when
the plane flew/hovered around the pilot/camera. Did you notice that there
wasn't any smoke. In hover, the plane would be running at very high power
setting and would generate a lot of smoke (2-stroke engine), but it wasn't
in that particular maneuver. You'll also notice in that same scene when
the plane is very close to the camera, that the plane has a different, kind
of "fake" look to it compared to the background; another giveaway. Also,
the plane flew around the camera, but you never saw the person with the
Control flying it. Maybe he was wearing a "head-cam", but I doubt it... :-)
All in all, though, this is an amazing simulation! Most people would be
completely fooled. Makes you wonder if the whole war-in-Iraq was really
just a 3D simulation... Hum, so where did all of that money go...?
Here is a link to the company that sells the 3D Model software:
https://sslsites.de/ikarus-modellbau.de/onlineshop/usa/onlineshop/index.html
COOL!
The Spoiler,
Matt Dralle
Matt G Dralle | Matronics | PO Box 347 | Livermore | CA | 94551
925-606-1001 V | 925-606-6281 F | dralle@matronics.com Email
http://www.matronics.com/ WWW | Featuring Products For Aircraft
Message 36
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| Subject: | Re: #4 ELT panel mounting screws |
--> RV-List message posted by: Dave Bristol <dbris200@sbcglobal.net>
Why would you want brass screws? Use regular steel screws or stainless,
they won't affect your compass. Almost every instrument and radio in
your panel has ferrous metal in it. The screws that hold them in are
not going to bother anything unless they are VERY close to the compass.
Dave
Wayne Pedersen wrote:
>--> RV-List message posted by: "Wayne Pedersen" <wayne@pedersentransport.com>
>
>I am trying to mount my ACK ELT head on the panel and need #4 brass screws.
>I have found reference in the archives but get an error message saying it
>cant open the '02 archive.
>I cant find any #4 brass at ACS, Wag Aero, Wicks - anybody have any other
>suggestions ?
>
>Wayne
>RV7a - panel
>
>
>
>
Message 37
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|
| Subject: | Re: #4 ELT panel mounting screws |
--> RV-List message posted by: Bobby Hester <bhester@hopkinsville.net>
Wayne Pedersen wrote:
>--> RV-List message posted by: "Wayne Pedersen" <wayne@pedersentransport.com>
>
>I am trying to mount my ACK ELT head on the panel and need #4 brass screws.
>I have found reference in the archives but get an error message saying it
>cant open the '02 archive.
>I cant find any #4 brass at ACS, Wag Aero, Wicks - anybody have any other
>suggestions ?
>
>Wayne
>RV7a - panel
>
>
>
>
Stainless Steel from Lowes
--
Surfing the Web from Hopkinsville, KY
Visit my web site at: http://www.geocities.com/hester-hoptown/RVSite/
RV7A Slowbuild wings-QB Fuse :-)
Message 38
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| Subject: | Re: New Van's RV-12? |
--> RV-List message posted by: "Don Mack" <don@dmack.net>
This is actually a video of Aerofly Pro RC simulator. It is the RC
equivalent of MS Flight Sim. The big difference is that you attach a RC
transmitter to your PC. You can have fun and practice without having to
repair anything.
Those types RC planes do exist in the real world. You won't see an RV-12
like this. Some of the 3D RC planes are so proportionally overpowered and
out of CG as compared to a full size, that you would not want to get in one.
I did listen to Sean Tucker at OSH last year talking about developing a 3D
plane for his act. It would be amazing to see, but scare the heck outta me.
There are three RC simulators that I know of:
Aerofly Pro - http://www.aerofly.com/
Realflight - http://www.realflight.com/
Reflex - http://www.modelrec.com/products/rcFlightSimulators/index.asp
If you want the 40 hour quickbuild RV, you can always buy one of these:
http://www.rchomebuilts.com/rv6.htm
Don Mack | don@dmack.net | www.dmack.net
Do not archive
Message 39
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| Subject: | Re: New Van's RV-12? |
--> RV-List message posted by: sportypilot@stx.rr.com
Not long ago, I saw a video of a guy flying a radio control inside a gym that
flew
very close to this! hover ect.. did anyone else see that ? it was truly awesome..
Danny..
----- Original Message -----
From: Matt Dralle <dralle@matronics.com>
Subject: Re: RV-List: New Van's RV-12?
> --> RV-List message posted by: Matt Dralle <dralle@matronics.com>
>
>
> >--> RV-List message posted by: "Jerry Hansen" <jerry-hansen@cox.net>
> >
> >Can this be the next RV?
> >
> >http://www.midcountyrc.com/videocorner/AFPD.wmv
>
> Listers,
>
> Now that you've watched this awesome video, realize that this
> ISN'T a real
> video of a real Radio Controlled model airplane!! Yes, that's
> what I
> said. Any of you that have your roots in Radio Controlled
> airplanes no
> doubt watched in amazement wondering just how someone could fly
> like
> that. Well, guess what... This is actually a 3D Graphics
> simulator for the
> PC. Yup, that's right!! I was blown away. I kept wondering how
> they
> could fly a plane like that, especially when they bounced it off
> the tail
> in the one scene where it was in hover flight. The other give
> away is when
> the plane flew/hovered around the pilot/camera. Did you notice
> that there
> wasn't any smoke. In hover, the plane would be running at very
> high power
> setting and would generate a lot of smoke (2-stroke engine), but
> it wasn't
> in that particular maneuver. You'll also notice in that same
> scene when
> the plane is very close to the camera, that the plane has a
> different, kind
> of "fake" look to it compared to the background; another giveaway.
> Also,
> the plane flew around the camera, but you never saw the person
> with the
> Control flying it. Maybe he was wearing a "head-cam", but I doubt
> it... :-)
>
> All in all, though, this is an amazing simulation! Most people
> would be
> completely fooled. Makes you wonder if the whole war-in-Iraq was
> really
> just a 3D simulation... Hum, so where did all of that money go...?
>
> Here is a link to the company that sells the 3D Model software:
>
> https://sslsites.de/ikarus-
> modellbau.de/onlineshop/usa/onlineshop/index.html
> COOL!
>
> The Spoiler,
>
> Matt Dralle
>
>
> Matt G Dralle | Matronics | PO Box 347 | Livermore | CA | 94551
> 925-606-1001 V | 925-606-6281 F | dralle@matronics.com Email
> http://www.matronics.com/ WWW | Featuring Products For Aircraft
>
>
> _-
> _-
> _-
> =====================================================================
>
>
>
>
Message 40
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| Subject: | Electronic ign & mag combo |
--> RV-List message posted by: j1j2h3@juno.com
Our club C-172 has LASAR mags on a normally carbureted O-360 running
mogas and I think they are great. The engine starts easily in all
weather and I find I can lean way beyond peak without the engine getting
rough.
Jim Hasper - RV-7
Giving new meaning to the term "slow build"
Franklin, TN
Do not archive
--> RV-List message posted by: "Charles Heathco" <cheathco@comcast.net>
In the prev posts re EGT's I noticed the engine had a mag and a
Lightspeed. I have
been considering making the change, but recall Ed whatshisname in
Greensboro
telling me he had taken his electrnic off and going back to dual mags
because
of problems. I would like to heare current thoughts on this, charlie
heathco
LZU
Message 41
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| Subject: | Re: New Van's RV-12? |
--> RV-List message posted by: Jerry Springer <jsflyrv@comcast.net>
Matt Dralle wrote:
>All in all, though, this is an amazing simulation! Most people would be
>completely fooled. Makes you wonder if the whole war-in-Iraq was really
>just a 3D simulation... Hum, so where did all of that money go...?
>
>Here is a link to the company that sells the 3D Model software:
>
> https://sslsites.de/ikarus-modellbau.de/onlineshop/usa/onlineshop/index.html
>
>COOL!
>
>The Spoiler,
>
>Matt Dralle
>
>
>
Lot of us that build RV's probably also flew RC's in our lifetime and
appreciate the skills of those that are really good
flying RC. This is a Helicopter not an airplane and it is REAL NOT FAKE.
For those of you that have a fast internet connection
this is well worth the dnload time. Watch all of it to appreciate this
guys RC flying skills.
http://rob.com/matt/rc/rc_video/alan_vegasfunflydemo_2004.wmv
Jerry
do not archive
Message 42
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| Subject: | Garmin 196 problem |
--> RV-List message posted by: Jeff Bertsch <noms1reqd@yahoo.com>
Both Bryan Jones and I have a the same problem with our Garmin 196:
we have the GPS connected to onboard power, but the batteries keep going dead after
a short period of time, even though we are not using them on battery power.
I have also found a pilot on the Beechlist who has the same problem.
Is there anyone else on the RV-list experiencing this?
Jeff Bertsch
lonestarsquadron.com
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