Today's Message Index:
----------------------
1. 05:46 AM - Trutrak for sale (Tad Sargent)
2. 05:53 AM - Re: Trutrak for sale (Linn Walters)
3. 07:20 AM - Avionics wars (Chris Hukill)
4. 07:34 AM - Re: Avionics wars (Kelly McMullen)
5. 07:39 AM - Re: Avionics interfacing (Jesse Saint)
6. 08:08 AM - Re: Avionics interfacing (Bill Mauledriver Watson)
7. 01:38 PM - KOSH flight fuel expense (Strasnuts)
8. 01:55 PM - Re: KOSH flight fuel expense (Tim Olson)
9. 02:28 PM - Re: KOSH flight fuel expense (Don McDonald)
10. 02:31 PM - Re: KOSH flight fuel expense (Don McDonald)
11. 03:08 PM - Re: [Bulk] Re: KOSH flight fuel expense (Linn Walters)
12. 03:15 PM - Re: KOSH flight fuel expense (Kelly McMullen)
13. 06:43 PM - [Bulk] Re: KOSH flight fuel expense (Bob Turner)
14. 07:48 PM - Door gas struts (Roxanne and Mike Lefever)
15. 08:08 PM - Re: KOSH flight fuel expense (Don McDonald)
16. 08:14 PM - Re: Door gas struts (Bobby J. Hughes)
17. 08:20 PM - Re: Door gas struts (Dave Leikam)
18. 08:27 PM - Re: Door gas struts (Roxanne and Mike Lefever)
19. 08:29 PM - Re: Door gas struts (Roxanne and Mike Lefever)
20. 09:22 PM - Re: Door gas struts (Dave Leikam)
21. 09:46 PM - Re: KOSH flight fuel expense (Kelly McMullen)
Message 1
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| Subject: | Trutrak for sale |
Digitrak
http://www.trutrakap.com/products/Digitrak.html
Fits Standard 2.25" Round Hole
Built-in Ground Track DG
Track Select Mode
GPS Nav Mode
Control Wheel Steering
12 Volts only
New DT2 - $1,600
This unit has been used for 123 hours. I bought it from a friend and I
intended to install it in the RV8 I am building, my partner does not want an
A/P in the plane.
Asking price $1300.00 for a barely used unit
call 704-591-2035
Tad Sargent
TeamRV
Message 2
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| Subject: | Re: Trutrak for sale |
Sorry, don't need the autopilot .... MGL going in the -10. However, I'm
curious about the reason your partner doesn't want an AP. It seems to
me that an AP is a safety item.
Linn
Tad Sargent wrote:
>
> Digitrak
> http://www.trutrakap.com/products/Digitrak.html
>
> Fits Standard 2.25" Round Hole
> Built-in Ground Track DG
> Track Select Mode
> GPS Nav Mode
> Control Wheel Steering
> 12 Volts only
> New DT2 - $1,600
>
> This unit has been used for 123 hours. I bought it from a friend and I
> intended to install it in the RV8 I am building, my partner does not
> want an A/P in the plane.
>
> Asking price $1300.00 for a barely used unit
> call 704-591-2035
>
> Tad Sargent
> TeamRV
>
> *
>
>
> *
Message 3
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I may have inadvertently started an avionics war here (how fun is
that!). I stand by my 5 to 1 ratio when comparing apples to apples.
First you compare a double 10 inch Dynon system that includes a full
function autopilot, redundant ADHARS, synthetic vision, TAWS, traffic,
WX, ADS-B in and out, remote TXP and soon remote com, and a very capable
EMS system, including many airframe provisions with annunciations, door
warning, position sensors, temp sensors, etc.
To get all that, forget the GTX and think G900. A friend recently spent
about $130,000 for MOST of that stuff in a G900 system for his Lancair 4
and is still trying to get it work right, one year later.
Unless your Cessna or Raytheon, product support from Garmin is
useless.(we don't need no stinking homebuilders)
All the above capability is available, except the com, which is coming
soon from Dynon,for under $20K. Add the G430 from Vans (OEM) and your at
the 5 to 1.
Now start comparing the cost of ownership with software and database
updates, and the 5 to 1 ratio starts to look like a good deal.
The reason there are so many wires from the Dynon, or just seems that
way, is the multiple redundancy of the SkyView system. Although the
network harnesses already have 2 wires for each function, power,
ground, transmit and receive, I have doubled up wires for additional
redundancy on long runs, i.e. front to back. Probably overkill, but easy
and cheap to do now. The main 37 pin Dsub from the EMS has all those
wires because it can accommodate all those inputs. Want less wire, cut
the ones off you don't use (except to spares, I used them all. I can
even monitor the seat warmer temps, JUST KIDDING!)
The single wire coming out of the back of the G3X, (Ethernet?) cannot
possibly provide that kind of function and redundancy. The initial
burden of an installation for a system doesn't even factor for me in the
big picture, but then I must be a masochist to have taken on the RV10
project to begin with?
Chris Hukill
getting off my soapbox and back to work
Message 4
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| Subject: | Re: Avionics wars |
So what did you use for primer?. ;-
On Sat, Jul 31, 2010 at 7:18 AM, Chris Hukill <cjhukill@cox.net> wrote:
> I may have inadvertently started an avionics war here (how fun is that!).
Message 5
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| Subject: | Re: Avionics interfacing |
I second this. I have had nothing but good experiences with Approach.
For a do-it-yourself panel builder, I always recommend Approach coupled
with Vertical Power.
Jesse Saint
Saint Aviation, Inc.
jesse@saintaviation.com
C: 352-427-0285
F: 815-377-3694
On Jul 30, 2010, at 7:46 PM, John Dunne wrote:
> Just as an item of interest, considering discussions on interfacing of
avionics,
>
> One of my most rewarding experiences and money well spent was my
dealings with Approach Fast Stack.
>
> Told them of my Garmins, Dynons, Tru track, old Narcos and the like
and they came up with an interface that had everything talking, working
and interfacing the first time spot on.
>
> They did the homework, made the harnesses, supplied the plug and play
hub units.
>
> Great service and a great product=85.well worth builders at the wiring
stage having a look.
>
> If they are at Osh, track them down for a chat.
>
> No commercial interest, just a happy customer happy to give credit
where it=92s due.
>
> John 40315 (VH-XIO)
>
>
>
>
>
>
>
> E-mail message checked by Spyware Doctor (7.0.0.514)
> Database version: 6.15520
> http://www.pctools.com/spyware-doctor-antivirus/
>
>
>
Message 6
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| Subject: | Re: Avionics interfacing |
I can second that. Very very happy customer here. Every time I hear of
another interface 'gotcha' here on the list, I go back and check my
configuration and find out it was taken care of.
You end up with the panel all nicely documented too.
Bill "sand sand" Watson
John Dunne wrote:
>
> Just as an item of interest, considering discussions on interfacing of
> avionics,
>
> One of my most rewarding experiences and money well spent was my
> dealings with Approach Fast Stack.
>
> Told them of my Garmins, Dynons, Tru track, old Narcos and the like
> and they came up with an interface that had everything talking,
> working and interfacing the first time spot on.
>
> They did the homework, made the harnesses, supplied the plug and play
> hub units.
>
> Great service and a great product.well worth builders at the wiring
> stage having a look.
>
> If they are at Osh, track them down for a chat.
>
> No commercial interest, just a happy customer happy to give credit
> where its due.
>
> John 40315 (VH-XIO)
>
>
> *
>
> E-mail message checked by Spyware Doctor (7.0.0.514)
> Database version: 6.15520
> http://www.pctools.com/spyware-doctor-antivirus/
> <http://www.pctools.com/en/spyware-doctor-antivirus/>
> *
> *
>
>
> *
Message 7
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| Subject: | KOSH flight fuel expense |
Just wanted to put some numbers out for who ever is interested.
I flew Scott Schmidt's RV-10 out to OSH from BTF
My route was exactly 2133nm there and back (stopped at Tim O)
My fuel cost was exactly 803 dollars
My Fuel quantity was exactly 172.19 giving average fuel cost of 4.66
My flight time was around 13.5 hours there and back
Running LOP from BTF to OSH first half 12500 and second half ROP at 2000
Running LOP from OSH to BTF first half at 12500 and second half 10500
--------
Cust. #40936
RV-10 SB Fuselage
N801VR reserved
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=306966#306966
Message 8
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| Subject: | Re: KOSH flight fuel expense |
Believe it or not, at that 12-14mpg (statute rough number) you'll find
that you can sometimes do even better than that, getting up near
18mpg. It's amazing how efficient you can be. If you want to feel
even better, use the road miles, but flight gallons....because you
cover an "effective distance" when going by air that may save 25% of
the miles or more. It makes the rv-10 compare well with a car or
truck for some trips. I'm going on one soon where the car time is 7
hours but rv10 time is 1.75. Turns into a no brainer on which way I
can do it the easiest.
Tim
On Jul 31, 2010, at 3:37 PM, "Strasnuts" <sean@braunandco.com> wrote:
>
> Just wanted to put some numbers out for who ever is interested.
>
> I flew Scott Schmidt's RV-10 out to OSH from BTF
> My route was exactly 2133nm there and back (stopped at Tim O)
> My fuel cost was exactly 803 dollars
> My Fuel quantity was exactly 172.19 giving average fuel cost of 4.66
> My flight time was around 13.5 hours there and back
> Running LOP from BTF to OSH first half 12500 and second half ROP at
> 2000
> Running LOP from OSH to BTF first half at 12500 and second half 10500
>
> --------
> Cust. #40936
> RV-10 SB Fuselage
> N801VR reserved
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=306966#306966
>
>
Message 9
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| Subject: | Re: KOSH flight fuel expense |
Yep, they say air miles are usually 15% shorter, but some of the time it's
a LOT shorter.- Here's a shot of my basic vfr panel on the way to Osh a w
eek ago-Friday.- I know, it doesn't have TAS, never could get the oat t
o work... will send to Rob at AFS this winter.- All that being said, at 1
1,500', wot, 1,990 rpm, 181 knots, with a fuel burn of 9.1 gph aint bad.
Tim, Bob, Bob, Bill, Gary, Neal, Deems, Scott (I mean John), Bryan, Geoff..
.and a few more...-it was great meeting some of you for the first time, a
nd seeing the rest of you again.- Got back yesterday after a visit to Kim
's relatives in Janesville, WI
Don McDonald
--- On Sat, 7/31/10, Tim Olson <Tim@MyRV10.com> wrote:
From: Tim Olson <Tim@MyRV10.com>
Subject: Re: RV10-List: KOSH flight fuel expense
Believe it or not, at that 12-14mpg (statute rough number) you'll find that
you can sometimes do even better than that, getting up near 18mpg.--
-It's amazing how efficient you can be.- If you want to feel even bette
r, use the road miles, but flight gallons....because you cover an "effectiv
e distance" when going by air that may save 25% of the miles or more.- It
makes the rv-10 compare well with a car or truck for some trips.- I'm go
ing on one soon where the car time is 7 hours but rv10 time is 1.75.- Tur
ns into a no brainer on which way I can do it the easiest.
Tim
On Jul 31, 2010, at 3:37 PM, "Strasnuts" <sean@braunandco.com> wrote:
>
> Just wanted to put some numbers out for who ever is interested.
>
> I flew Scott Schmidt's RV-10 out to OSH from BTF
> My route was exactly 2133nm there and back (stopped at Tim O)
> My fuel cost was exactly 803 dollars
> My Fuel quantity was exactly 172.19 giving average fuel cost of 4.66
> My flight time was around 13.5 hours there and back
> Running LOP from BTF to OSH first half 12500 and second half ROP at 2000
> Running LOP from OSH to BTF first half at 12500 and second half 10500
>
> --------
> Cust. #40936
> RV-10 SB Fuselage
> N801VR reserved
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=306966#306966
>
>
>
>
>
>
>
>
>
le, List Admin.
=0A=0A=0A
Message 10
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| Subject: | Re: KOSH flight fuel expense |
Ok, so I forgot to attach the pic....
-
Yep, they say air miles are usually 15% shorter, but some of the time it's
a LOT shorter.- Here's a shot of my basic vfr panel on the way to Osh a w
eek ago-Friday.- I know, it doesn't have TAS, never could get the oat t
o work... will send to Rob at AFS this winter.- All that being said, at 1
1,500', wot, 1,990 rpm, 181 knots, with a fuel burn of 9.1 gph aint bad.
Tim, Bob, Bob, Bill, Gary, Neal, Deems, Scott (I mean John), Bryan, Geoff..
.and a few more...-it was great meeting some of you for the first time, a
nd seeing the rest of you again.- Got back yesterday after a visit to Kim
's relatives in Janesville, WI
Don McDonald
--- On Sat, 7/31/10, Tim Olson <Tim@MyRV10.com> wrote:
From: Tim Olson <Tim@MyRV10.com>
Subject: Re: RV10-List: KOSH flight fuel expense
Believe it or not, at that 12-14mpg (statute rough number) you'll find that
you can sometimes do even better than that, getting up near 18mpg.--
-It's amazing how efficient you can be.- If you want to feel even bette
r, use the road miles, but flight gallons....because you cover an "effectiv
e distance" when going by air that may save 25% of the miles or more.- It
makes the rv-10 compare well with a car or truck for some trips.- I'm go
ing on one soon where the car time is 7 hours but rv10 time is 1.75.- Tur
ns into a no brainer on which way I can do it the easiest.
Tim
On Jul 31, 2010, at 3:37 PM, "Strasnuts" <sean@braunandco.com> wrote:
>
> Just wanted to put some numbers out for who ever is interested.
>
> I flew Scott Schmidt's RV-10 out to OSH from BTF
> My route was exactly 2133nm there and back (stopped at Tim O)
> My fuel cost was exactly 803 dollars
> My Fuel quantity was exactly 172.19 giving average fuel cost of 4.66
> My flight time was around 13.5 hours there and back
> Running LOP from BTF to OSH first half 12500 and second half ROP at 2000
> Running LOP from OSH to BTF first half at 12500 and second half 10500
>
> --------
> Cust. #40936
> RV-10 SB Fuselage
> N801VR reserved
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=306966#306966
>
>
>
>
>
>
>
>
>
le, List Admin.
=0A=0A=0A
Message 11
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| Subject: | Re: KOSH flight fuel expense |
Keep in mind that that car will get very poor mileage doing 175 MPH
...... :-P
Wish there was some way to estimate that MPG at real high speeds.
Linn
Tim Olson wrote:
>
> Believe it or not, at that 12-14mpg (statute rough number) you'll find
> that you can sometimes do even better than that, getting up near
> 18mpg. It's amazing how efficient you can be. If you want to feel
> even better, use the road miles, but flight gallons....because you
> cover an "effective distance" when going by air that may save 25% of
> the miles or more. It makes the rv-10 compare well with a car or
> truck for some trips. I'm going on one soon where the car time is 7
> hours but rv10 time is 1.75. Turns into a no brainer on which way I
> can do it the easiest.
> Tim
>
>
> On Jul 31, 2010, at 3:37 PM, "Strasnuts" <sean@braunandco.com> wrote:
>
>>
>> Just wanted to put some numbers out for who ever is interested.
>>
>> I flew Scott Schmidt's RV-10 out to OSH from BTF
>> My route was exactly 2133nm there and back (stopped at Tim O)
>> My fuel cost was exactly 803 dollars
>> My Fuel quantity was exactly 172.19 giving average fuel cost of 4.66
>> My flight time was around 13.5 hours there and back
>> Running LOP from BTF to OSH first half 12500 and second half ROP at 2000
>> Running LOP from OSH to BTF first half at 12500 and second half 10500
>>
>> --------
>> Cust. #40936
>> RV-10 SB Fuselage
>> N801VR reserved
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=306966#306966
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
Message 12
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| Subject: | Re: KOSH flight fuel expense |
I'm slightly confused. It appears your indicated airspeed on the mechanical
gauge is in knots, around 125, with the EFIS in mph at around 144. Not sure
why you would want to not match units. That would translate to around 148kt
TAS at std temp (-8C). So you were getting around a 33kt tailwind? Also not
sure why you would run at 52% power(assuming LOP) unless you had strong
tailwind. With that kind of tailwind, could have been over 200kts GS. ;-)
But of course that is the beauty of home built...we can all do it our way,
no matter what the peanut gallery thinks, much less the big bad feds against
aviation.
On Sat, Jul 31, 2010 at 2:31 PM, Don McDonald <building_partner@yahoo.com>wrote:
> Ok, so I forgot to attach the pic....
>
> Yep, they say air miles are usually 15% shorter, but some of the time it's
> a LOT shorter. Here's a shot of my basic vfr panel on the way to Osh a week
> ago Friday. I know, it doesn't have TAS, never could get the oat to work...
> will send to Rob at AFS this winter. All that being said, at 11,500', wot,
> 1,990 rpm, 181 knots, with a fuel burn of 9.1 gph aint bad.
> Tim, Bob, Bob, Bill, Gary, Neal, Deems, Scott (I mean John), Bryan,
> Geoff...and a few more... it was great meeting some of you for the first
> time, and seeing the rest of you again. Got back yesterday after a visit to
> Kim's relatives in Janesville, WI
> Don McDonald
>
>
Message 13
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| Subject: | Re: [Bulk] Re: KOSH flight fuel expense |
At these kind of speeds in a car, almost all of the energy is going to air resistance
(above the basic inefficiency of the engine, which is roughly constant).
Gas mileage will vary approximately as the inverse square of the speed. i.e.,
a car doing 150 mph will get 1/4 the gas mileage as it would at 75 mph. You
should see what an Indy car gets at 200 mph!
--------
Bob Turner
RV-10 QB
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=306998#306998
Message 14
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Was excited to possibly finish the mechanical of the doors today (so hopefu
lly I have dropped them on my head for the last time)=2C but when attemptin
g to install the gas struts I could not compress them to install into the b
rackets.......................I even put them on the vice..............I am
260 lbs and I can compress about anything............I also applied the al
l purpose multi tool (hammer).........there is no give in them....there mus
t be a trick to it. Bail me out! Any ideas?
Message 15
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| Subject: | Re: KOSH flight fuel expense |
Kelly, you sure have me confused.- The Efis and the round dial ASI show t
he exact same numbers.... the inside ring shows 145 mph (126kt).... and you
think it was 17 degrees F at 11,500... if it were we certainly would have
been using the heater... it was more like 70 degrees F.- These pics were
shot about 3pm.- I set my 496 using knots because quite a few guys were u
sing knots back in Calif when we would be flying to lunch etc., and I did a
ll my stall tests and cross training in mph (per Van).
Check the weather on that day you will find that the winds were mostly quar
tering tail at about 15kts.- Where the heck did you arrive at a TAS of 14
8kts?- Ground speed was 181kts or 208mph.- I have found that I lose ver
y little speed when reducing rpm, and my fuel burn and temperatures are exc
ellent.- I suspect most 10's can't do this because they don't have the sa
me combination (high hp and 3 blade MT).- I run this setting, around 2,00
0 rpm, no matter what the wind is.
BTW, on the way home from Osh I was catching 3 other rv's in front of me wi
th a headwind.- Sure, I could run slightly faster, but then the fuel burn
goes to between 10.5 and 11.5.-- 10% to 20% more fuel burn for 1% to 3
% more speed.
Sounds like a no brainer to me.
Don
--- On Sat, 7/31/10, Kelly McMullen <apilot2@gmail.com> wrote:
From: Kelly McMullen <apilot2@gmail.com>
Subject: Re: RV10-List: KOSH flight fuel expense
I'm slightly confused. It appears your indicated airspeed on the mechanical
gauge is in knots, around 125, with the EFIS in mph at around 144. Not sur
e why you would want to not match units. That would translate to around 148
kt TAS at std temp (-8C). So you were getting around a 33kt tailwind? Also
not sure why you would run at 52% power(assuming LOP) unless you had strong
tailwind. With that kind of tailwind, could have been over 200kts GS. ;-)
But of course that is the beauty of home built...we can all do it our way,
no matter what the peanut gallery thinks, much less the big bad feds agains
t aviation.
On Sat, Jul 31, 2010 at 2:31 PM, Don McDonald <building_partner@yahoo.com>
wrote:
Ok, so I forgot to attach the pic....
-
Yep, they say air miles are usually 15% shorter, but some of the time it's
a LOT shorter.- Here's a shot of my basic vfr panel on the way to Osh a w
eek ago-Friday.- I know, it doesn't have TAS, never could get the oat t
o work... will send to Rob at AFS this winter.- All that being said, at 1
1,500', wot, 1,990 rpm, 181 knots, with a fuel burn of 9.1 gph aint bad.
Tim, Bob, Bob, Bill, Gary, Neal, Deems, Scott (I mean John), Bryan, Geoff..
.and a few more...-it was great meeting some of you for the first time, a
nd seeing the rest of you again.- Got back yesterday after a visit to Kim
's relatives in Janesville, WI
Don McDonald
-
=0A=0A=0A
Message 16
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Install them with the door open.
________________________________
From: owner-rv10-list-server@matronics.com
[mailto:owner-rv10-list-server@matronics.com] On Behalf Of Roxanne and
Mike Lefever
Sent: Saturday, July 31, 2010 9:48 PM
Subject: RV10-List: Door gas struts
Was excited to possibly finish the mechanical of the doors today (so
hopefully I have dropped them on my head for the last time), but when
attempting to install the gas struts I could not compress them to
install into the brackets.......................I even put them on the
vice..............I am 260 lbs and I can compress about
anything............I also applied the all purpose multi tool
(hammer).........there is no give in them....there must be a trick to
it. Bail me out! Any ideas?
Message 17
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| Subject: | Re: Door gas struts |
Open the doors to make the distance between the brackets larger than the
strut ends and close just enough to insert the bolts. They will
compress like magic after doing so.
Dave Leikam
RV-10 N89DA
Muskego, WI
----- Original Message -----
From: Roxanne and Mike Lefever
To: rv10-list@matronics.com
Sent: Saturday, July 31, 2010 9:47 PM
Subject: RV10-List: Door gas struts
Was excited to possibly finish the mechanical of the doors today (so
hopefully I have dropped them on my head for the last time), but when
attempting to install the gas struts I could not compress them to
install into the brackets.......................I even put them on the
vice..............I am 260 lbs and I can compress about
anything............I also applied the all purpose multi tool
(hammer).........there is no give in them....there must be a trick to
it. Bail me out! Any ideas?
Message 18
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da...........yes tried that but they do not compress
Subject: RE: RV10-List: Door gas struts
From: bhughes@qnsi.net
Install them with the door open.
From: owner-rv10-list-server@matronics.com [mailto:owner-rv10-list-server@m
atronics.com] On Behalf Of Roxanne and Mike Lefever
Sent: Saturday=2C July 31=2C 2010 9:48 PM
Subject: RV10-List: Door gas struts
Was excited to possibly finish the mechanical of the doors today (so hopefu
lly I have dropped them on my head for the last time)=2C but when attemptin
g to install the gas struts I could not compress them to install into the b
rackets.......................I even put them on the vice..............I am
260 lbs and I can compress about anything............I also applied the al
l purpose multi tool (hammer).........there is no give in them....there mus
t be a trick to it. Bail me out! Any ideas?
href="http://www.matronics.com/Navigator?RV10-List">http://www.matronics.
com/Navigator?RV10-List
href="http://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
Message 19
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thanks...........will keep at it................the length of the stuts as
they came=2C exceeds the length between the brackets....per plans........ev
en with the door opened beyond vertical.........as usual sounds like there
is no magic other than to force it
From: daveleikam@wi.rr.com
Subject: Re: RV10-List: Door gas struts
Open the doors to make the distance between the brackets larger than the st
rut ends and close just enough to insert the bolts. They will compress lik
e magic after doing so.
Dave Leikam
RV-10 N89DA
Muskego=2C WI
----- Original Message -----
From: Roxanne and Mike Lefever
Sent: Saturday=2C July 31=2C 2010 9:47 PM
Subject: RV10-List: Door gas struts
Was excited to possibly finish the mechanical of the doors today (so hopefu
lly I have dropped them on my head for the last time)=2C but when attemptin
g to install the gas struts I could not compress them to install into the b
rackets.......................I even put them on the vice..............I am
260 lbs and I can compress about anything............I also applied the al
l purpose multi tool (hammer).........there is no give in them....there mus
t be a trick to it. Bail me out! Any ideas?
href="http://www.matronics.com/Navigator?RV10-List">http://www.matronics.
com/Navigator?RV10-List
href="http://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
Message 20
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| Subject: | Re: Door gas struts |
Do you have the bracket on the door reversed?
Dave Leikam
RV-10 N89DA
Muskego, WI
----- Original Message -----
From: Roxanne and Mike Lefever
To: rv10-list@matronics.com
Sent: Saturday, July 31, 2010 10:28 PM
Subject: RE: RV10-List: Door gas struts
thanks...........will keep at it................the length of the
stuts as they came, exceeds the length between the brackets....per
plans........even with the door opened beyond vertical.........as usual
sounds like there is no magic other than to force it
-------------------------------------------------------------------------
-----
From: daveleikam@wi.rr.com
To: rv10-list@matronics.com
Subject: Re: RV10-List: Door gas struts
Date: Sat, 31 Jul 2010 22:18:35 -0500
Open the doors to make the distance between the brackets larger than
the strut ends and close just enough to insert the bolts. They will
compress like magic after doing so.
Dave Leikam
RV-10 N89DA
Muskego, WI
----- Original Message -----
From: Roxanne and Mike Lefever
To: rv10-list@matronics.com
Sent: Saturday, July 31, 2010 9:47 PM
Subject: RV10-List: Door gas struts
Was excited to possibly finish the mechanical of the doors today (so
hopefully I have dropped them on my head for the last time), but when
attempting to install the gas struts I could not compress them to
install into the brackets.......................I even put them on the
vice..............I am 260 lbs and I can compress about
anything............I also applied the all purpose multi tool
(hammer).........there is no give in them....there must be a trick to
it. Bail me out! Any ideas?
href="http://www.matronics.com/Navigator?RV10-List">http://www.matronic
s.com/Navigator?RV10-List
href="http://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/c
arget=_blank>http://www.matronics.com/Navigator?RV10-List
ttp://forums.matronics.com
=_blank>http://www.matronics.com/contribution
Message 21
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| Subject: | Re: KOSH flight fuel expense |
OK. Inner ring of the round dial isn't visible to me in the picture.
Nor was any OAT, so I assumed std conditions, a bad assumption on my
part. Obviously you were warmer, which puts your TAS up to 156kts.
Still means a 25kt tailwind, not 15.
IF you were LOP, which I don't know...the formula for a stock
compression IO-540 is FF*14.9=HP. That would be 9.1gph*14.9 or
135.6hp. Divided by 260hp gives approx 52% power. Not exactly a high
power setting. For a normally aspirated engine with 8.5 compression at
11,500 the only way you will get higher power is to turn more rpm and
burn more fuel. Granted you are getting great economy, but it isn't
efficiency of the engine or low rpm by themselves, it is the low power
setting that is getting you the economy. If you reduced further, to
around 40% power, you would approach max range figures, but at a
slower speed. You are already giving up 10-15kts for the sake of fuel
economy, as a -10 should be capable of between 165-170kts TAS, perhaps
as much as 175 at 75% power(Van's figures converted to kts). To do
that LOP you would have to be low enough make that much power,
probably in the 7500-8500 alt range running 2600-2650 rpm. Running
LOP to get 75% power you have to burn 13.1 gph. That is the physics.
Is the extra speed worth the extra gas?
Just one of the many decisions we have to make..speed vs fuel burn. I
just wanted to point out that your TAS was no where near 181kts on
that fuel burn. If you are running ROP the power figure would be even
lower. If your engine is higher than stock compression, the fuel/power
factor would change to a little higher number and your percent power
might be a percent or two more, nothing drastic.
On Sat, Jul 31, 2010 at 8:07 PM, Don McDonald
<building_partner@yahoo.com> wrote:
>
> Kelly, you sure have me confused. The Efis and the round dial ASI show the exact
same numbers.... the inside ring shows 145 mph (126kt).... and you think it
was 17 degrees F at 11,500... if it were we certainly would have been using
the heater... it was more like 70 degrees F. These pics were shot about 3pm. I
set my 496 using knots because quite a few guys were using knots back in Calif
when we would be flying to lunch etc., and I did all my stall tests and cross
training in mph (per Van).
> Check the weather on that day you will find that the winds were mostly quartering
tail at about 15kts. Where the heck did you arrive at a TAS of 148kts? Ground
speed was 181kts or 208mph. I have found that I lose very little speed when
reducing rpm, and my fuel burn and temperatures are excellent. I suspect most
10's can't do this because they don't have the same combination (high hp and
3 blade MT). I run this setting, around 2,000 rpm, no matter what the wind is.
> BTW, on the way home from Osh I was catching 3 other rv's in front of me with
a headwind. Sure, I could run slightly faster, but then the fuel burn goes to
between 10.5 and 11.5. 10% to 20% more fuel burn for 1% to 3% more speed.
> Sounds like a no brainer to me.
> Don
>
> --- On Sat, 7/31/10, Kelly McMullen <apilot2@gmail.com> wrote:
>
> From: Kelly McMullen <apilot2@gmail.com>
> Subject: Re: RV10-List: KOSH flight fuel expense
> To: rv10-list@matronics.com
> Date: Saturday, July 31, 2010, 3:13 PM
>
> I'm slightly confused. It appears your indicated airspeed on the mechanical gauge
is in knots, around 125, with the EFIS in mph at around 144. Not sure why
you would want to not match units. That would translate to around 148kt TAS at
std temp (-8C). So you were getting around a 33kt tailwind? Also not sure why
you would run at 52% power(assuming LOP) unless you had strong tailwind. With
that kind of tailwind, could have been over 200kts GS. ;-)
> But of course that is the beauty of home built...we can all do it our way, no
matter what the peanut gallery thinks, much less the big bad feds against aviation.
>
> On Sat, Jul 31, 2010 at 2:31 PM, Don McDonald <building_partner@yahoo.com> wrote:
>
> Ok, so I forgot to attach the pic....
>
> Yep, they say air miles are usually 15% shorter, but some of the time it's a
LOT shorter. Here's a shot of my basic vfr panel on the way to Osh a week agoFriday.
I know, it doesn't have TAS, never could get the oat to work... will send
to Rob at AFS this winter. All that being said, at 11,500', wot, 1,990 rpm,
181 knots, with a fuel burn of 9.1 gph aint bad.
> Tim, Bob, Bob, Bill, Gary, Neal, Deems, Scott (I mean John), Bryan, Geoff...and
a few more...it was great meeting some of you for the first time, and seeing
the rest of you again. Got back yesterday after a visit to Kim's relatives in
Janesville, WI
> Don McDonald
>
>
> get=_blank rel=nofollow>http://www.matronics.com/Navigator?RV10-List
> =nofollow>http://forums.matronics.com
> blank rel=nofollow>http://www.matronics.com/contribution
>
>
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