Today's Message Index:
----------------------
1. 05:34 AM - Re: RV-12 question (BPA)
2. 05:44 AM - Performance Problem Analysis (David Burden)
3. 10:40 AM - N188R First Flight (luckymacy@comcast.net (lucky))
4. 11:03 AM - Re: N188R First Flight (Richard Dudley)
5. 11:19 AM - Re: N188R First Flight (Fiveonepw@aol.com)
6. 11:20 AM - Re: N188R First Flight (Mickey Coggins)
7. 11:50 AM - Re: N188R First Flight (Fly n Low)
8. 12:08 PM - Re: Re: RV Elevator Counterweight question (LarryRobertHelming)
9. 02:56 PM - Re: N188R First Flight (Greg Young)
10. 03:34 PM - Re: Rudder Trailing Edge Countersinking (Michael D. Cencula)
11. 03:36 PM - help with actual engine performance (luckymacy@comcast.net (lucky))
12. 03:53 PM - Re: N188R First Flight (Kevin Horton)
13. 03:57 PM - Re: help with actual engine performance (Kyle Boatright)
14. 03:59 PM - Re: help with actual engine performance (Kevin Horton)
15. 04:58 PM - Re: help with actual engine performance (luckymacy@comcast.net (lucky))
16. 06:36 PM - Re: help with actual engine performance (Kelly McMullen)
17. 07:57 PM - Question about engine baffle airseal fabric height (Joe Connell)
Message 1
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--> RV-List message posted by: "BPA" <BPA@BPAENGINES.COM>
Use the throttle to your advantage :)
-----Original Message-----
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com] On Behalf Of John Huft
Sent: Thursday, March 23, 2006 7:09 PM
Subject: Re: RV-List: RV-12 question
--> RV-List message posted by: John Huft <rv8@lazy8.net>
Take it back apart, give the kit back to Van and demand your money back!
Chris W wrote:
>--> RV-List message posted by: Chris W <3edcft6@cox.net>
>
>The RV-12 is shooting for the light sport licensed pilots. My question
>is suppose you build one to spec and find after flight testing that it
>goes faster than the max speed for that category? What do you do?
>
>do not archive
>
>
>
Message 2
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| Subject: | Performance Problem Analysis |
--> RV-List message posted by: David Burden <hootsnik@sbcglobal.net>
Hello Listers,
I am working through a performance issue and need some help. I need to find
some folks who have flying aircraft with the following combination of features:
Flying RV7a or 9a
Carburated 180 hp 0360 (Superior/ECI/Lyc)
Sam James Cowl/plenum/induction system
Fixed pitch propellor
The intent is to compare some data and discuss any install challenges you may
have had to overcome with this, apparently rare combination.
Please respond off list to:
hootsnik@sbcglobal.net
Thanks in advance for the help.
Dave
Message 3
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Cc: info@vansaircraft.com
| Subject: | N188R First Flight |
--> RV-List message posted by: luckymacy@comcast.net (lucky)
RV8 N188R's maiden flight was this morning!
It flies like an RV so of course I'm grinning.
Wow, did I really make that thing? ;-)
Thanks to everyone on the lists for their help but special thanks to Frank Wooten
for helping along the way and he topped if off today by being the chase plane
and helping me verify my inflight numbers. The plane is still no where near
'done' but at least for now when the weather is good I can actually fly it instead
of being stuck just working on it and while others have all the fun!
OK, Chuck & Dave Rowbotham, I've been waiting for years for this day so you know
what to do!
Lucky Macy
N188R FLYING
Wallingford PA
RV8 N188R's maiden flight was this morning!
It flies like an RV so of course I'm grinning.
Wow, did I really make that thing? ;-)
Thanks to everyone on the lists for their help but special thanks to Frank Wooten
for helping along the way and he topped if off today by being the chase plane
and helping me verify my inflight numbers. The plane isstill no where near'done'
but at least for now when the weather is good I can actually fly it instead
of being stuck just working on it and while others have all the fun!
OK, Chuck Dave Rowbotham, I've been waiting for years for this day so you know
what to do!
Lucky Macy
N188R FLYING
Wallingford PA
Message 4
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| Subject: | Re: N188R First Flight |
--> RV-List message posted by: Richard Dudley <rhdudley@att.net>
Congratulations, Lucky!!!
Best regards,
Richard Dudley
lucky wrote:
>--> RV-List message posted by: luckymacy@comcast.net (lucky)
>
>RV8 N188R's maiden flight was this morning!
>
>It flies like an RV so of course I'm grinning.
>
>Wow, did I really make that thing? ;-)
>
>Thanks to everyone on the lists for their help but special thanks to Frank Wooten
for helping along the way and he topped if off today by being the chase plane
and helping me verify my inflight numbers. The plane is still no where near
'done' but at least for now when the weather is good I can actually fly it
instead of being stuck just working on it and while others have all the fun!
>
>OK, Chuck & Dave Rowbotham, I've been waiting for years for this day so you know
what to do!
>
>Lucky Macy
>N188R FLYING
>Wallingford PA
>
>RV8 N188R's maiden flight was this morning!
>
>It flies like an RV so of course I'm grinning.
>
>Wow, did I really make that thing? ;-)
>
>Thanks to everyone on the lists for their help but special thanks to Frank Wooten
for helping along the way and he topped if off today by being the chase plane
and helping me verify my inflight numbers. The plane isstill no where near'done'
but at least for now when the weather is good I can actually fly it instead
of being stuck just working on it and while others have all the fun!
>
>OK, Chuck Dave Rowbotham, I've been waiting for years for this day so you know
what to do!
>
>Lucky Macy
>N188R FLYING
>Wallingford PA
>
>
>
>
>
>
>
>
>
Message 5
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| Subject: | Re: N188R First Flight |
--> RV-List message posted by: Fiveonepw@aol.com
WAY TO GO Lucky- glad ya got 'er up!
WAY TO GO Lucky- glad ya got 'er up!
>From the PossumWorks in TN
Mark Phillips 8-)
do not archive
Message 6
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| Subject: | Re: N188R First Flight |
--> RV-List message posted by: Mickey Coggins <mick-matronics@rv8.ch>
lucky wrote:
>
> RV8 N188R's maiden flight was this morning!
Good for you, Lucky! We're looking forward to some pictures!
--
Mickey Coggins
http://www.rv8.ch/
#82007 finishing
do not archive
Message 7
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| Subject: | N188R First Flight |
--> RV-List message posted by: "Fly n Low" <flynlow@usaviator.net>
Congratulations Lucky;
I am behind you, but not too far. Six months, may be a year. I am happy to
hear it all went as it was supposed to.
Bud Silvers
RV8 Fastback - Colorado - Finishing
--> RV-List message posted by: luckymacy@comcast.net (lucky)
RV8 N188R's maiden flight was this morning!
Message 8
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| Subject: | Re: RV Elevator Counterweight question |
--> RV-List message posted by: "LarryRobertHelming" <lhelming@sigecom.net>
FWIW, I balanced my RV7 elevator after I painted it. I have kit #47 so
things may have changed as of today. But with my kit I had to remove a lot
of lead from the counterweight. I did it by drilling one hole after another
until I got it perfect. If I were doing it again and I planned to paint the
plane, I would paint before making weight adjustments.
Indiana Larry, RV7 "SunSeeker" 90+ hours flying
"Please use the information and opinions I express with responsibility, and
at your own risk."
----- Original Message ----- >
> I had worked out a way to be able to easily unbolt the counterweight on
> the first RV-8 that I built, so I could replace it with a heavier one when
> I painted the plane. I happened to mention this to one of the Van's
> support people when I called about something else, and they almost laughed
> me off the phone. They said if it really needed to be that precise, there
> would be RV's falling out of the sky left and right every day. Their
> suggestion at the time was to leave it just a bit heavy to compensate for
> future paint, then quit worrying about it.
>
> The next RV I finished was an RV-3. Guess what, no counterweights at all
> on an RV-3 elevator, and you couldn't even tell it in flight.
>
> My advice would be to do whatever makes you feel comfortable, but realize
> that a small imbalance won't cause a problem under normal operating
> limits. Now if you plan to set your Vne 50 kts past the recommendation,
> then you're on your own anyway.
>
Message 9
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| Subject: | N188R First Flight |
--> RV-List message posted by: "Greg Young" <gyoung@cs-sol.com>
Way to go, Lucky! Congratulations.
Regards,
Greg Young - Houston (DWH)
RV-6 N6GY - project Phoenix
Navion N5221K - just an XXL RV-6A
Do not archive
> -----Original Message-----
> From: owner-rv-list-server@matronics.com
> [mailto:owner-rv-list-server@matronics.com] On Behalf Of lucky
> Sent: Friday, March 24, 2006 12:35 PM
> To: RV-List; MARV
> Cc: info@vansaircraft.com
> Subject: RV-List: N188R First Flight
>
> --> RV-List message posted by: luckymacy@comcast.net (lucky)
>
> RV8 N188R's maiden flight was this morning!
>
> It flies like an RV so of course I'm grinning.
>
> Wow, did I really make that thing? ;-)
>
> Thanks to everyone on the lists for their help but special
> thanks to Frank Wooten for helping along the way and he
> topped if off today by being the chase plane and helping me
> verify my inflight numbers. The plane is still no where near
> 'done' but at least for now when the weather is good I can
> actually fly it instead of being stuck just working on it and
> while others have all the fun!
>
> OK, Chuck & Dave Rowbotham, I've been waiting for years for
> this day so you know what to do!
>
> Lucky Macy
> N188R FLYING
> Wallingford PA
--
Message 10
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| Subject: | Re: Rudder Trailing Edge Countersinking |
--> RV-List message posted by: "Michael D. Cencula" <matronics@cencula.com>
Hi guys,
(second and third paragraph have suggestions for improvement)
I recently did the rudder for my RV7 (which is the same rudder as on the RV9).
It had the predrilled aluminum extrusion (AEX) wedge and prepunched skins. I
match drilled them, dimpled the skins, and created a simple jig for c-sinking
the AEX wedge. The AEX holes did get enlarged, but the dimpled skins fit
well.
When I prosealed the skins together, the dimples from one skin hit the dimples
from the other skin causing the skin to bulge slightly apart at each rivet.
It's counterintuitive...you would think that the skins would be pinched
tighter at the rivets. The end result is that if you place your fingers on
either side of the trailing edge and run them along the length of the rudder,
you can feel a little bulge at each rivet.
If I were going to do this again, I would do everything the same as before,
but I would file down the dimples just a little to allow the two skins to
actually sit flat against the AEX wedge instead of the dimples hitting each
other and causing these slight bulges.
I followed the instructions in the manual exactly. By back riveting halfway
and then setting with a mushroom set, the rivets came out really well. It's
hard to keep from bending the rivet over, so I probably drilled out 1/3 of
the rivets and put them in a second time so they all look good.
Good luck,
Mike Cencula
Message 11
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| Subject: | help with actual engine performance |
--> RV-List message posted by: luckymacy@comcast.net (lucky)
My EFIS isn't quite dialed in yet but I recorded the following numbers today and
want a second opinion on whether or not these are close.
I have a 200hp angle valved engine.
My max full throttle highest fuel flow was ~20 gph and my highest MP was 22.95
but that last number is the one I think is way off and I need to figure out how
to tweak my settings to compute correctly. Take off altitude was 440 feet and
I forgot the barometric pressure but it was around 30.0
What would angle engine owners expect to see for MP given this approximate scenario?
thx,
lucky
My EFIS isn't quite dialed in yet but I recorded the following numbers today and
want a second opinion on whether or not these are close.
I have a 200hp angle valved engine.
My max full throttle highest fuel flow was ~20 gph and my highest MP was 22.95
but that last number is the one I think is way off and I need to figure out how
to tweak my settings to compute correctly.Take off altitude was 440 feet and
I forgot the barometric pressure but it was around 30.0
What would angle engine owners expect to see for MP given this approximate scenario?
thx,
lucky
Message 12
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| Subject: | Re: N188R First Flight |
--> RV-List message posted by: Kevin Horton <khorton01@rogers.com>
On 24 Mar 2006, at 13:35, lucky wrote:
> --> RV-List message posted by: luckymacy@comcast.net (lucky)
>
> RV8 N188R's maiden flight was this morning!
>
> It flies like an RV so of course I'm grinning.
>
> Wow, did I really make that thing? ;-)
>
> Thanks to everyone on the lists for their help but special thanks
> to Frank Wooten for helping along the way and he topped if off
> today by being the chase plane and helping me verify my inflight
> numbers. The plane is still no where near 'done' but at least for
> now when the weather is good I can actually fly it instead of being
> stuck just working on it and while others have all the fun!
>
Lucky,
Congrats! I'm jealous.
Fly safe, walk before you run, have fun,
Kevin Horton RV-8 (finishing kit)
Ottawa, Canada
http://www.kilohotel.com/rv8
Message 13
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| Subject: | Re: help with actual engine performance |
--> RV-List message posted by: "Kyle Boatright" <kboatright1@comcast.net>
What does your MP gauge read when the engine is stopped? It should read 29
or inches, depending on field elevation. On takeoff, it should read
slightly lower than that - maybe 1/2 or 1 inch due to induction system
losses.
KB
----- Original Message -----
From: "lucky" <luckymacy@comcast.net>
Sent: Friday, March 24, 2006 6:32 PM
Subject: RV-List: help with actual engine performance
> --> RV-List message posted by: luckymacy@comcast.net (lucky)
>
> My EFIS isn't quite dialed in yet but I recorded the following numbers
> today and want a second opinion on whether or not these are close.
>
> I have a 200hp angle valved engine.
>
> My max full throttle highest fuel flow was ~20 gph and my highest MP was
> 22.95 but that last number is the one I think is way off and I need to
> figure out how to tweak my settings to compute correctly. Take off
> altitude was 440 feet and I forgot the barometric pressure but it was
> around 30.0
>
> What would angle engine owners expect to see for MP given this approximate
> scenario?
>
> thx,
> lucky
>
> My EFIS isn't quite dialed in yet but I recorded the following numbers
> today and want a second opinion on whether or not these are close.
>
> I have a 200hp angle valved engine.
>
> My max full throttle highest fuel flow was ~20 gph and my highest MP was
> 22.95 but that last number is the one I think is way off and I need to
> figure out how to tweak my settings to compute correctly.Take off altitude
> was 440 feet and I forgot the barometric pressure but it was around 30.0
>
> What would angle engine owners expect to see for MP given this approximate
> scenario?
>
> thx,
> lucky
>
>
>
Message 14
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| Subject: | Re: help with actual engine performance |
--> RV-List message posted by: Kevin Horton <khorton01@rogers.com>
On 24 Mar 2006, at 18:32, lucky wrote:
> --> RV-List message posted by: luckymacy@comcast.net (lucky)
>
> My EFIS isn't quite dialed in yet but I recorded the following
> numbers today and want a second opinion on whether or not these are
> close.
>
> I have a 200hp angle valved engine.
>
> My max full throttle highest fuel flow was ~20 gph and my highest
> MP was 22.95 but that last number is the one I think is way off and
> I need to figure out how to tweak my settings to compute correctly.
> Take off altitude was 440 feet and I forgot the barometric pressure
> but it was around 30.0
Lucky,
As you suspect, something is fouled up somewhere. At 440 ft ASL,
with an altimeter setting of 30.00, the actual atmospheric pressure
would be about 29.5 in HG. The manifold pressure at full throttle at
low speed should be around an inch less than the atmospheric
pressure, plus or minus.
So, you either have a false MP indication, or a very significant
restriction in your induction system, or your throttle is not getting
full open.
Are you sure that your throttle plate is getting full open?
Which MP gauge or engine indication system do you have?
Kevin Horton RV-8 (finishing kit)
Ottawa, Canada
http://www.kilohotel.com/rv8
Message 15
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| Subject: | Re: help with actual engine performance |
--> RV-List message posted by: luckymacy@comcast.net (lucky)
forget the MP part. That's just me talking out loud. I have to figure out how
to make my spreadsheet algorithm match reality. It displays "right" in the cockpit
but the GRT recorded data for MP is 'raw' data and not the processed value
that's displayed.
Really my question is does the 20 gallons per hour seem right for a 200 hp engine
making full power near sea level?
-------------- Original message --------------
From: Kevin Horton <khorton01@rogers.com>
> --> RV-List message posted by: Kevin Horton
>
> On 24 Mar 2006, at 18:32, lucky wrote:
>
> > --> RV-List message posted by: luckymacy@comcast.net (lucky)
> >
> > My EFIS isn't quite dialed in yet but I recorded the following
> > numbers today and want a second opinion on whether or not these are
> > close.
> >
> > I have a 200hp angle valved engine.
> >
> > My max full throttle highest fuel flow was ~20 gph and my highest
> > MP was 22.95 but that last number is the one I think is way off and
> > I need to figure out how to tweak my settings to compute correctly.
> > Take off altitude was 440 feet and I forgot the barometric pressure
> > but it was around 30.0
>
> Lucky,
>
> As you suspect, something is fouled up somewhere. At 440 ft ASL,
> with an altimeter setting of 30.00, the actual atmospheric pressure
> would be about 29.5 in HG. The manifold pressure at full throttle at
> low speed should be around an inch less than the atmospheric
> pressure, plus or minus.
>
> So, you either have a false MP indication, or a very significant
> restriction in your induction system, or your throttle is not getting
> full open.
>
> Are you sure that your throttle plate is getting full open?
>
> Which MP gauge or engine indication system do you have?
>
> Kevin Horton RV-8 (finishing kit)
> Ottawa, Canada
> http://www.kilohotel.com/rv8
>
>
>
>
>
>
>
>
>
>
>
>
>
forget the MP part. That's just me talking out loud. I have to figure out how to
make my spreadsheet algorithm match reality. It displays "right" in the cockpit
but the GRT recorded data for MP is 'raw' data and not the processed value
that's displayed.
Really my question is does the 20 gallons per hour seem right for a 200 hp engine
making full powernear sea level?
-------------- Original message --------------
From: Kevin Horton khorton01@rogers.com
-- RV-List message posted by: Kevin Horton <KHORTON01@ROGERS.COM>
On 24 Mar 2006, at 18:32, lucky wrote:
-- RV-List message posted by: luckymacy@comcast.net (lucky)
My EFIS isn't quite dialed in yet but I recorded the following
numbers today and want a second opinion on whether or not these are
close.
I have a 200hp angle valved engine.
My max full throttle highest fuel flow was ~20 gph and my highest
MP was 22.95 but that last number is the one I think is way off and
I need to figure out how to tweak my settings to compute correctly.
Take off altitude was 440 feet and I forgot the
barometric pressure
but it was around 30.0
Lucky,
As you suspect, something is fouled up somewhere. At 440 ft ASL,
with an altimeter setting of 30.00, the actual atmospheric pressure
would be about 29.5 in HG. The manifold pressure at full throttle at
low speed should be around an inch less than the atmospheric
pressure, plus or minus.
So, you either have a false MP indication, or a very significant
restriction in your induction system, or your throttle is not getting
full open.
Are you sure that your throttle plate is getting full open?
Which MP gauge or engine indication system do you have?
Kevin Horton RV-8 (finishing kit)
Ottawa, Canada
http://www.kilohotel.com/rv8
Message 16
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| Subject: | Re: help with actual engine performance |
--> RV-List message posted by: Kelly McMullen <kellym@aviating.com>
Yes, 20gph is close, perhaps a hair rich, but a good number. I've heard
of as low as 17gph, but that is on the lean side.
do not archive
lucky wrote:
> --> RV-List message posted by: luckymacy@comcast.net (lucky)
>
> forget the MP part. That's just me talking out loud. I have to figure out how
to make my spreadsheet algorithm match reality. It displays "right" in the
cockpit but the GRT recorded data for MP is 'raw' data and not the processed
value that's displayed.
>
> Really my question is does the 20 gallons per hour seem right for a 200 hp engine
making full power near sea level?
>
> -------------- Original message --------------
> From: Kevin Horton <khorton01@rogers.com>
>
>> --> RV-List message posted by: Kevin Horton
>>
>> On 24 Mar 2006, at 18:32, lucky wrote:
>>
>>> --> RV-List message posted by: luckymacy@comcast.net (lucky)
>>>
>>> My EFIS isn't quite dialed in yet but I recorded the following
>>> numbers today and want a second opinion on whether or not these are
>>> close.
>>>
>>> I have a 200hp angle valved engine.
>>>
>>> My max full throttle highest fuel flow was ~20 gph and my highest
>>> MP was 22.95 but that last number is the one I think is way off and
>>> I need to figure out how to tweak my settings to compute correctly.
>>> Take off altitude was 440 feet and I forgot the barometric pressure
>>> but it was around 30.0
>> Lucky,
>>
>> As you suspect, something is fouled up somewhere. At 440 ft ASL,
>> with an altimeter setting of 30.00, the actual atmospheric pressure
>> would be about 29.5 in HG. The manifold pressure at full throttle at
>> low speed should be around an inch less than the atmospheric
>> pressure, plus or minus.
>>
>> So, you either have a false MP indication, or a very significant
>> restriction in your induction system, or your throttle is not getting
>> full open.
>>
>> Are you sure that your throttle plate is getting full open?
>>
>> Which MP gauge or engine indication system do you have?
>>
>> Kevin Horton RV-8 (finishing kit)
>> Ottawa, Canada
>> http://www.kilohotel.com/rv8
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
> forget the MP part. That's just me talking out loud. I have to figure out how
to make my spreadsheet algorithm match reality. It displays "right" in the cockpit
but the GRT recorded data for MP is 'raw' data and not the processed value
that's displayed.
>
> Really my question is does the 20 gallons per hour seem right for a 200 hp engine
making full powernear sea level?
>
> -------------- Original message --------------
> From: Kevin Horton khorton01@rogers.com
>
> -- RV-List message posted by: Kevin Horton <KHORTON01@ROGERS.COM>
>
> On 24 Mar 2006, at 18:32, lucky wrote:
>
> -- RV-List message posted by: luckymacy@comcast.net (lucky)
>
> My EFIS isn't quite dialed in yet but I recorded the following
> numbers today and want a second opinion on whether or not these are
> close.
>
> I have a 200hp angle valved engine.
>
> My max full throttle highest fuel flow was ~20 gph and my highest
> MP was 22.95 but that last number is the one I think is way off and
> I need to figure out how to tweak my settings to compute correctly.
> Take off altitude was 440 feet and I forgot the
> barometric pressure
> but it was around 30.0
>
> Lucky,
>
> As you suspect, something is fouled up somewhere. At 440 ft ASL,
> with an altimeter setting of 30.00, the actual atmospheric pressure
> would be about 29.5 in HG. The manifold pressure at full throttle at
> low speed should be around an inch less than the atmospheric
> pressure, plus or minus.
>
> So, you either have a false MP indication, or a very significant
> restriction in your induction system, or your throttle is not getting
> full open.
>
> Are you sure that your throttle plate is getting full open?
>
> Which MP gauge or engine indication system do you have?
>
> Kevin Horton RV-8 (finishing kit)
> Ottawa, Canada
> http://www.kilohotel.com/rv8
>
>
>
>
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Message 17
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| Subject: | Question about engine baffle airseal fabric height |
--> RV-List message posted by: "Joe Connell" <jconnell@rconnect.com>
Hi Guys,
I've finished fitting the baffles on an O-320 on an RV-9A.
I've established a clearance between 3/8" to 1/2" inch
between the baffle and the top cowling.
How high should the airseal material be above the tops
of the baffle pieces before it gets folded? I'm thinking
about 1 1/2 inches. Is this in the ballpark?
Many thanks,
Joe Connell
Stewartville, MN
RV-9A N95JJ
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