Today's Message Index:
----------------------
1. 04:09 AM - Re: 10:1 Compression / IO-360 200 HP (Kevin Horton)
2. 04:32 AM - RV6A Training ()
3. 06:51 AM - Trip to Wash DC (Hobby-RV) (Bill Judge)
4. 07:39 AM - Re: RV8-A Purchase (Dave Reel)
5. 07:41 AM - Re: RV6A Training (Brian Meyette)
6. 07:52 AM - Re: RV6A Training (Tom & Cathy Ervin)
7. 08:16 AM - Re: RV6A Training (Carlos Hernandez)
8. 08:41 AM - Re: RV6A Training (Jerry Springer)
9. 09:48 AM - Re: 10:1 Compression / IO-360 200 HP ()
10. 09:56 AM - Re: RV6A Training (Tom & Cathy Ervin)
11. 11:47 AM - Re: F I fuel pump for sale (jblake43@bellsouth.net)
12. 11:47 AM - 2007 RV-7A 74 hrs TTAF/E for sale with factory new IO-390! (Travis Hamblen)
13. 12:14 PM - Re: RV6A Training ()
14. 09:25 PM - Lycoming O320 160HP engine available in Sydney Australia (Steve de Wit)
15. 11:19 PM - Tire Inflation away from home (glen matejcek)
Message 1
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| Subject: | Re: 10:1 Compression / IO-360 200 HP |
On 17-Jul-08, at 12:55 , Matt Dralle wrote:
>
>
> Does anyone have any experience with 10:1 compression in a IO-360
> 200 HP engine?
>
> * What is the HP gain?
An increase in compression ratio increases the thermal efficiency of
the engine - i.e. a higher percentage of the energy in the fuel is
converted to mechanical work.
http://www.popularhotrodding.com/tech/0311_phr_compression_ratio_tech/index.html
In theory, if you made no other changes to the engine, the power would
increase by 4%, which would probably yield about a 5% increase in rate
of climb and about a 1.3% increase in speed.
--
Kevin Horton RV-8 (final assemby)
Ottawa, Canada
http://www.kilohotel.com/rv8
Message 2
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Clear DayGoodmorning all: My buidling partner and I need to get 3
hours each traning by a CFI in a RV6A, RV7A or RV9A to satisfy our
insurance company. We live in the Columbus, Ohio area and were
wondering if there are any transition trainers in the area?
D. White
Message 3
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| Subject: | Trip to Wash DC (Hobby-RV) |
Flying into the ADIZ there is one cardinal sin:
Sqwuaking 1200 in the ADIZ.
Which happens regularly by:
1. reverting to normal ops and changing to 1200 after the
controller dumps you.
2. pressing on despite the fact that Potomac approach hasn't
given you a code even though you are talking with them.
File a flight plan for the gate along your route of flight that avoids
class bravo, get flight following with a discrete code and you won't
have any problems.
Since the ADIZ started class bravo clearances are generally not given
because the ADIZ controllers do not own any airspace: all they do is
give out codes and observe your code. You'll hear "transponder
observed, proceed on course" They will not say "cleared into the
ADIZ."
The controllers hate the ADIZ as much as we do. as long as you
squawk, talk and stay out of the bravo life is grand.
The real gotcha that nails a lot of pilots is changing to 1200 after
the controller releases you the same way you would after canceling VFR
or IFR services.
Bill
N84WJ RV-8 w/ 250 hrs
Based in the ADIZ and FRZ at VKX
>
> ________________________________ Message 15 ____________________________________
>
>
> Time: 04:19:09 PM PST US
> Subject: RV-List: Re: Trip to Wash DC
> From: "tsts4" <tsts4@verizon.net>
>
>
> Just make sure you pick the ADIZ gate closest to KGAI and make that the origin
> on your ADIZ flight plan with KGAI as the destination, and then plan to penetrate
> the ADIZ through that gate. Be sure to activate it with FSS before you get
> too close or Potomac Approach will keep you outside the ADIZ until they can
> sort it out. Otherwise it's no big deal. I fly out of Manassas (KHEF) which
> is also in the ADIZ and have found it to be pretty much a non-event.
>
> --------
> Todd Stovall
> 728TT (reserved)
> RV-10 Empacone
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=193493#193493
>
>
Message 4
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| Subject: | Re: RV8-A Purchase |
I'm still trying to sell my RV8-A so it's now up at the address
members.cox.net/reelpilot. If you find anyone of interest, especially
at the annual show, please direct them to this new website. It seems
that financial shortages have greatly slowed interest in aircraft
movement but my cancer has kept me having to sell.
Dave Reel
Message 5
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Here=92s a list of all known transition trainers. Let me know of any
that I
haven=92t listed
HYPERLINK
"http://brian76.mystarband.net/training.htm"http://brian76.mystarband.net
/tr
aining.htm
_____
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com] On Behalf Of
dwhite17@columbus.rr.com
Sent: Friday, July 18, 2008 7:27 AM
Subject: RV-List: RV6A Training
Goodmorning all: My buidling partner and I need to get 3 hours each
traning by a CFI in a RV6A, RV7A or RV9A to satisfy our insurance
company.
We live in the Columbus, Ohio area and were wondering if there are any
transition trainers in the area?
D. White
Checked by AVG.
12:00
AM
Checked by AVG.
12:00
AM
Message 6
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| Subject: | Re: RV6A Training |
I received my transition training from from Keith Embree at CDI Cambridge,
OH. Keith is an excellent builder,pilot and CFI .
=C2-=C2- I took less than 2 hours training and was signed off good to g
o in his RV8-A . I made the first flight in my RV6-A with no issues and had
my biannual with him last fall.
=C2-=C2- The RV8-A flies exactly like the the 6-A so your insurance com
pany should except that. The sign off of a CFI with RV experience is all th
at should be required not a time stipulation....this isn't a tail drager .
=C2-=C2- Try another insurance company if the balk. Contact Keith at 74
0-432-4123.
=C2-=C2-=C2-=C2-=C2-=C2-=C2-=C2-=C2-=C2-=C2-=C2-=C2
-=C2-=C2-=C2-=C2-=C2-=C2-=C2-=C2-=C2-=C2-=C2-=C2-
=C2-=C2-=C2-=C2-=C2-=C2-=C2-=C2-=C2-=C2-=C2-=C2-=C2
-=C2-=C2-=C2-=C2-=C2-=C2-=C2-=C2-=C2-=C2-=C2-=C2-
=C2-=C2-=C2-=C2-=C2-=C2-=C2-=C2-=C2-=C2-=C2-=C2- To
m in Ohio ( 10G Holmes Co.)=C2-
----- Original Message -----
From: dwhite17 @ columbus . rr .com
Sent: Friday, July 18, 2008 7:27:29 AM ( GMT-0500 ) America/ New_York
Subject: RV-List : RV6A Training
Goodmorning all:=C2-=C2-=C2- My buidling partner and I need to get 3
hours each traning by a CFI in a RV6A , RV7A or RV9A to satisfy our insuran
ce company.=C2- We live in the Columbus, Ohio area and were wondering if
there are any transition trainers in the area?
D. White
Message 7
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| Subject: | Re: RV6A Training |
Try this yahoo RV group - http://groups.yahoo.com/group/OhioValleyRVators/
These guys are active and I'm pretty sure they can answer that question
quick.
Carlos
dwhite17@columbus.rr.com wrote:
> Goodmorning all: My buidling partner and I need to get 3 hours each
> traning by a CFI in a RV6A, RV7A or RV9A to satisfy our insurance
> company. We live in the Columbus, Ohio area and were wondering if
> there are any transition trainers in the area?
>
> D. White
>
>
>
> ------------------------------------------------------------------------
>
> Checked by AVG.
>
--
Carlos Hernandez <carlosh@sec-engr.com>
Structural Engineers Company
2963 W. Elliot Rd. - Suite 3
Chandler, AZ 85224
Phone: 480.968.8600
Fax: 480.968.8608
www.sec-engr.com
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Message 8
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| Subject: | Re: RV6A Training |
Some insurance companies will not except time in any other model.
Jerry
CFI
Tom & Cathy Ervin wrote:
> I received my transition training from from Keith Embree at CDI
> Cambridge, OH. Keith is an excellent builder,pilot and CFI.
>
> I took less than 2 hours training and was signed off good to go in
> his RV8-A. I made the first flight in my RV6-A with no issues and had
> my biannual with him last fall.
>
> The RV8-A flies exactly like the the 6-A so your insurance company
> should except that. The sign off of a CFI with RV experience is all
> that should be required not a time stipulation....this isn't a tail
> drager.
>
> Try another insurance company if the balk. Contact Keith at
> 740-432-4123.
>
> Tom in
> Ohio (10G Holmes Co.)
> ----- Original Message -----
> From: dwhite17@columbus.rr.com
> To: rv-list@matronics.com
> Sent: Friday, July 18, 2008 7:27:29 AM (GMT-0500) America/New_York
> Subject: RV-List: RV6A Training
>
> Goodmorning all: My buidling partner and I need to get 3 hours each
> traning by a CFI in a RV6A, RV7A or RV9A to satisfy our insurance
> company. We live in the Columbus, Ohio area and were wondering if
> there are any transition trainers in the area?
>
> D. White
>
>
>
>
Message 9
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| Subject: | Re: 10:1 Compression / IO-360 200 HP |
I have not done 10:1 on my RV but have some
experience with HC pistons on Lycs.
First Lyc engineers pretty much max out most Lycs at
8:50:1 or 8:75:1 because that is the highest reliable
compression with GOOD detonation margins.
Detonation can lead to valve, piston, rod or rod bearing
damage....total failure. That is a fact.
One big exception to the above are the O-235's at 9.70:1
CR. They where withdrawn from the market. They
where fine in the test cell, in service they where failing
in the hands of pilots. Although there are STC's to boost
the power of C-152's & Grumman Yankee's with 235's. I
worked on one of those STC's. We blew a piston during
FAA trials.
Why use HC pistons? In the example above going from
8:5:1 to 9.70:1 produced a HP increase from 118 HP to
125 HP, a gain of 7 HP. Not much.
Some Helicopter engines have 10.0:1. Look at the
NTSB accident reports and TBO for those aircraft. You
will be impressed on how often these HC piston
helicopter engines fail, total failure. I don't think newer
helicopters like the Robertson Helicopters run HC
piston engines (for a reason).
Gas in the future will not be 100LL. It's very likely we'll
get green Av-gas in the near future, likely called 95UL
or 92UL, which the Euro folks now have. This lower / no
lead gas will have less octane and thus will not be good
for HC (meaning it won't run safely). You can
retard timing to compensate for lower octane but there
goes your handful of extra ponies.
Bottom line - detonation margin is cut down drastically
with HC pistons. Detonation can happen with out being
noticed by pilot, very subtle, while causing damage and
eventually total engine failure. If you operate carefully
with full knowledge of how your engine works than it
can be done safely. Lyc has to make engines that will
work in all conditions with ham-handed pilots. 8.75 is a
reliable number.
My experience with the 9:7:1 STC on the O-235 Lyc
and the fear of detonation kept me from bumping up my
O-360 (180HP) up from the stock 8:5:1. I just don't need
the extra 4 or 6 HP.
I am using dual electronic ignition with timing advance.
To mix in HC pistons with timing advance is a bit of an
unknown, hit and miss guess. To compensate
people limit timing advance, arbitrarily. Less timing
advance less power and the "No Free Lunch Rule"
comes into play. You lose your HC pistion gain.
Lycs Key Reprints give several bullet points for max
engine life....... one being operate at 65% power. Well that
makes sense, 100% power the engine will not last as
long & wear faster. There is no doubt that higher
combustion pressures has Pros & Cons. The Pro is
more power and actually better SFC or efficiency. The
Con is you're running higher pressures & temps and
that affects all the parts in the engine.
If using a metal prop the affect on the props vibration
response & fatigue, a big unknown affect with HC pistions.
When you add up all the SHOULD and SHOULD NOT
............... I think there are more on the NOT side.
4-into-1 exhaust, Electronic Ignition for hotter spark all
add HP & efficiency with out as much draw back as the
HC Piston. Also making the airframe less draggy with a
better cowl or wheel & gear fairings is the gift that
keeps on giving. No down side but better efficiency that
equals or exceeds the speed gain you would get by adding
twice the HP HC pistons would give you. Sure more
power is better for takeoff and climb but RV's already do
pretty good with out more HP.
Cheers Matt
George
>Time: 10:02:08 AM PST US
>From: Matt Dralle <dralle@matronics.com>
>Subject: RV-List: 10:1 Compression / IO-360 200 HP
>
>
>Does anyone have any experience with 10:1 compression in a IO-360 200
>HP engine?
>
>* What are the down sides of running 10:1 in that engine?
>
>* What is the HP gain?
>
>* What is the impact to TBO?
>
>* What is the impact to reliability?
>
>If you've done it, would you do it again, or just go with the standard
>8.7:1 compression?
>
>Matt Dralle
RV-8 #82880
Message 10
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| Subject: | Re: RV6A Training |
If they will accept a 9-A which is in "No WAY" comparable to the speed and handling
of a 6-A why not the 8-A which flies Exactly the same??
Get another insurance company!!!!!!!!!! In my opinion any CFI who would sign
off a pilot good to go in a 6-A after transition training in an 9-A should be
suspect. The 9-A is a nice cross country aircraft that I have found to be much
more forgiving in most of it's flight characteristic's than any other Van's model.
It will not prepare you to be Safe in a 6-A.
Off my "Soap Box" Tom in Ohio
----- Original Message -----
From: "Jerry Springer" <jsflyrv@verizon.net>
Sent: Friday, July 18, 2008 11:35:34 AM (GMT-0500) America/New_York
Subject: Re: RV-List: RV6A Training
Some insurance companies will not except time in any other model.
Jerry
CFI
Tom & Cathy Ervin wrote:
> I received my transition training from from Keith Embree at CDI
> Cambridge, OH. Keith is an excellent builder,pilot and CFI.
>
> I took less than 2 hours training and was signed off good to go in
> his RV8-A. I made the first flight in my RV6-A with no issues and had
> my biannual with him last fall.
>
> The RV8-A flies exactly like the the 6-A so your insurance company
> should except that. The sign off of a CFI with RV experience is all
> that should be required not a time stipulation....this isn't a tail
> drager.
>
> Try another insurance company if the balk. Contact Keith at
> 740-432-4123.
>
> Tom in
> Ohio (10G Holmes Co.)
> ----- Original Message -----
> From: dwhite17@columbus.rr.com
> To: rv-list@matronics.com
> Sent: Friday, July 18, 2008 7:27:29 AM (GMT-0500) America/New_York
> Subject: RV-List: RV6A Training
>
> Goodmorning all: My buidling partner and I need to get 3 hours each
> traning by a CFI in a RV6A, RV7A or RV9A to satisfy our insurance
> company. We live in the Columbus, Ohio area and were wondering if
> there are any transition trainers in the area?
>
> D. White
>
>
>
>
Message 11
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| Subject: | Re: F I fuel pump for sale |
Message 12
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| Subject: | 2007 RV-7A 74 hrs TTAF/E for sale with factory new IO-390! |
Its time to move forward with some other dreams in life. In order to move
forward I have to sell my little girl. My 2007 RV-7A only has 74 hours
TTAF/E on a factory new IO-390 also sporting a factory new Hartzell contant
speed prop. She has all the avionics bells and whistles and is in perfect
condition with a fresh annual completed July 5, 2008. See the below links
for pictures and/or more information. The price is $99,900.00. Call or
e-mail me with ANY questions.
Pictures:
http://s286.photobucket.com/albums/ll112/N107XX/?albumview=slideshow
Ad on VAF:
http://www.vansairforce.com/community/showthread.php?t=32103
Travis Hamblen
651-269-6542
TravisHamblen@gmail.com
Based at 21D (Lake Elmo, MN)
Message 13
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| Subject: | Re: RV6A Training |
Thanks. Our insurance company said training in 8A would be fine.
Thanks. We'll give Keith a call.
----- Original Message -----
From: Tom & Cathy Ervin
To: rv-list@matronics.com
Sent: Friday, July 18, 2008 10:47 AM
Subject: Re: RV-List: RV6A Training
I received my transition training from from Keith Embree at CDI
Cambridge, OH. Keith is an excellent builder,pilot and CFI.
I took less than 2 hours training and was signed off good to go in
his RV8-A. I made the first flight in my RV6-A with no issues and had my
biannual with him last fall.
The RV8-A flies exactly like the the 6-A so your insurance company
should except that. The sign off of a CFI with RV experience is all that
should be required not a time stipulation....this isn't a tail drager.
Try another insurance company if the balk. Contact Keith at
740-432-4123.
Tom in
Ohio (10G Holmes Co.)
----- Original Message -----
From: dwhite17@columbus.rr.com
To: rv-list@matronics.com
Sent: Friday, July 18, 2008 7:27:29 AM (GMT-0500) America/New_York
Subject: RV-List: RV6A Training
Goodmorning all: My buidling partner and I need to get 3 hours each
traning by a CFI in a RV6A, RV7A or RV9A to satisfy our insurance
company. We live in the Columbus, Ohio area and were wondering if there
are any transition trainers in the area?
D. White
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
3D
Message 14
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| Subject: | Lycoming O320 160HP engine available in Sydney Australia |
do not archive
Hi All.
I have a Cherokee 160 either for sale or to part out, which way I go will depend
on what interest is shown.
So I am looking for expressions of interest in the engine and thought it may suit
an RV builder.
Details are:-
O-320 B2B 160HP (high compression)
Note: NOT dynafocal mount
Total hours 3851
TBO 5053
Last 100 hourly April 2004
Last flown Feb 2005
This would suit a builder confident enough to do their own mount and to pull the
cylinders and hone them.
I don't know if the prop is suitable for an RV but if interested it's a Sensenich
M74DM either 58 or 60" pitch.
If interested contact me directly sdewit2000 at yahoo dot com or 0419 697 130
Cheers
Steve
Message 15
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| Subject: | Tire Inflation away from home |
Hi All-
There was a recent discussion about fly away kit contents. One person mentioned
bringing a spare inner tube. Does anyone know of a reason to not use CO2 to
fill a newly replaced tube on the road?
TIA-
glen matejcek
aerobubba@earthlink.net
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