Today's Message Index:
----------------------
1. 05:30 AM - For Sale RV-8 (Alan Kritzman)
2. 05:51 AM - Re: Prop control label again (Mark Doble)
3. 07:04 AM - Re: Prop control label again (Sam Buchanan)
4. 07:42 AM - Re: Falcon instruments (renewhall2)
5. 10:18 AM - Takeoff Distance vs Density Altitude (Richard Dudley)
6. 10:19 AM - Re: Canopy cover (Garry)
7. 11:26 AM - Re: Takeoff Distance vs Density Altitude (Kevin Horton)
8. 11:34 AM - Re: Takeoff Distance vs Density Altitude (Richard Dudley)
9. 11:41 AM - Re: Takeoff Distance vs Density Altitude (Kevin Horton)
10. 12:08 PM - Re: Takeoff Distance vs Density Altitude (Richard Dudley)
11. 02:22 PM - Re: Takeoff Distance vs Density Altitude (Sherman Butler)
12. 02:34 PM - Re: Canopy Cover (Larry Bowen)
13. 03:09 PM - Re: Takeoff Distance vs Density Altitude (Richard Dudley)
14. 03:56 PM - Re: Canopy Cover (c.ennis)
15. 05:34 PM - Re: Takeoff Distance vs Density Altitude (Ron Lee)
16. 07:01 PM - Re: Takeoff Distance vs Density Altitude (Sherman Butler)
Message 1
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For Sale 2002 RV-8, Aerosport power 160hp O-320, Sensenich Prop, TT 330 hours.
Dynon EFIS, Grand Rapids EFIS (Map/HSI), EIS Engine Monitor, Truetrak autopilot,
Garmin SL30, Microair 760, Garmin GTX327, Garmin 396 GPS with XM. Electric
trim, Full rear seat controls. Hangered at KCID. $79,000 rv8_flyer@yahoo.com or
Alan Kritzman 319-378-9149
---------------------------------
Take the Internet to Go: Yahoo!Go puts the Internet in your pocket: mail, news,
photos & more.
Message 2
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| Subject: | Re: Prop control label again |
I used the following..printed out on an inkjet printer on Avery clear
mailing labels #18660 (word has a template for this paper).
Looks as great as the day I did it in 2002. I used this paper for all my
labels. Easy to change later on when you mod something.
Propeller
Push >RPM
Cheers,
Mark
Message 3
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| Subject: | Re: Prop control label again |
Fiveonepw@aol.com wrote:
>
> In a message dated 6/24/2007 9:00:03 AM Central Daylight Time,
> sbuc@hiwaay.net writes:
>
> I've seen you fly and you're pretty good..... ;-)
>
> Musta been a rare day- ATC towers from OSH to LAL have mug shots of my tail#
> on their walls 8-( Appreciate the reply, Sam
>
> Seeyah!
> Mark do not archive
Oops, failed to notice you were looking for prop labeling, not throttle
and mixture.
I take back what I said about your flyin'........ ;-)
Sam Buchanan
Message 4
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| Subject: | Re: Falcon instruments |
My Falcon turn coordinator just quit after 300hrs.
Bob
--------
Bob Newhall
N829RV
RV Transition Training
Raleigh, NC
renewhall2.googlepages.com
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=120513#120513
Message 5
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| Subject: | Takeoff Distance vs Density Altitude |
I have attached a graph that calculates takeoff distance increase and
climb performance decrease as a function of density altitude. I found it
in someone's POH on the internet. If valid, this would be a very
convenient inclusion in a POH.
My questions for aerodynamically knowledgeable folks are:
1. Is this a valid calculation?
2. Was this formally published somewhere? If so, where?
3. Is the percent degradation in takeoff and climb performance
independent or is it dependent on the specific aircraft parameters?
Your comments will be appreciated.
Regards,
Richard Dudley
RV-6A flying
Message 6
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| Subject: | Re: Canopy cover |
Austin,
If not already sold, can you describe the canopy cover...........inside
material, outside material, approximate weight, method of fastening,etc.
Also, what is a titanium tie down?
Garry Stout
----- Original Message -----
From: Austin
To: rv-list rv-list
Sent: Friday, June 22, 2007 10:52 PM
Subject: RV-List: Canopy cover
Listers,
Since I no longer have an RV, I have a canopy cover for the side by
side RV as well as a set of titanium tie downs for sale.
Both items never used nor unpacked. $350 for both.
Please respond off list if interested.
Many thanks,
Austin T.
Message 7
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| Subject: | Re: Takeoff Distance vs Density Altitude |
On Mon, 25 Jun 2007 13:08:33 -0400
Richard Dudley <rhdudley1@bellsouth.net> wrote:
> I have attached a graph that calculates takeoff distance increase and
> climb performance decrease as a function of density altitude. I found it
> in someone's POH on the internet. If valid, this would be a very
> convenient inclusion in a POH.
> My questions for aerodynamically knowledgeable folks are:
> 1. Is this a valid calculation?
> 2. Was this formally published somewhere? If so, where?
> 3. Is the percent degradation in takeoff and climb performance
> independent or is it dependent on the specific aircraft parameters?
>
> Your comments will be appreciated.
>
> Regards,
>
> Richard Dudley
> RV-6A flying
>
Message 8
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| Subject: | Re: Takeoff Distance vs Density Altitude |
Kevin,
I appreciate your response. But, I find no content in your post. Just my
original message.
Regards,
Richard Dudley
Kevin Horton wrote:
>
>On Mon, 25 Jun 2007 13:08:33 -0400
>Richard Dudley <rhdudley1@bellsouth.net> wrote:
>
>
>
>>I have attached a graph that calculates takeoff distance increase and
>>climb performance decrease as a function of density altitude. I found it
>>in someone's POH on the internet. If valid, this would be a very
>>convenient inclusion in a POH.
>>My questions for aerodynamically knowledgeable folks are:
>>1. Is this a valid calculation?
>>2. Was this formally published somewhere? If so, where?
>>3. Is the percent degradation in takeoff and climb performance
>>independent or is it dependent on the specific aircraft parameters?
>>
>>Your comments will be appreciated.
>>
>>Regards,
>>
>>Richard Dudley
>>RV-6A flying
>>
>>
>>
>
>
>
>
Message 9
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| Subject: | Re: Takeoff Distance vs Density Altitude |
On Mon, 25 Jun 2007 13:08:33 -0400
Richard Dudley <rhdudley1@bellsouth.net> wrote:
> I have attached a graph that calculates takeoff distance increase and
> climb performance decrease as a function of density altitude. I found it
> in someone's POH on the internet. If valid, this would be a very
> convenient inclusion in a POH.
> My questions for aerodynamically knowledgeable folks are:
> 1. Is this a valid calculation?
> 2. Was this formally published somewhere? If so, where?
> 3. Is the percent degradation in takeoff and climb performance
> independent or is it dependent on the specific aircraft parameters?
>
> Your comments will be appreciated.
>
Opps. Different e-mail client than I normally use, and I hit the Send button by
accident the first time.
I'm not sure what the pedigree of this chart is, but it looks similar to other
ones I have seen aimed at common light aircraft. The effect of density altitude
on take-off ground roll will be roughly the same for an RV as it would be for
a Cessna, as the impact is due to reduction in engine power, and increase in
TAS at lift off. So this part of the chart is probably just as accurate for
our RVs as it is for a SE Cessna. Or just as inaccurate.
But the impact of density altitude on climb rate depends on excess power. RVs
need less power than a Cessna 172 to maintain level flight, but they have an equal,
or more power available, so they have much more excess power. A Cessna
sees a significant reduction in rate of climb with DA, as it doesn't take a very
big reduction in power available to bring the excess power to zero. If this
graph provides an accurate prediction of reduction of rate of climb on a Cessna,
it would be pessimistic on an RV. I.e. it would predict a bigger reduction
in rate of climb than would actually occur. For example, that chart predicts
that the rate of climb would be zero with a density altitude in the high teens.
But in fact, most RVs could easily climb above 20,000 ft.
Kevin Horton
Message 10
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| Subject: | Re: Takeoff Distance vs Density Altitude |
Thanks, Kevin.
Regards,
Richard Dudley
do not archive
Kevin Horton wrote:
>
>On Mon, 25 Jun 2007 13:08:33 -0400
>Richard Dudley <rhdudley1@bellsouth.net> wrote:
>
>
>
>>I have attached a graph that calculates takeoff distance increase and
>>climb performance decrease as a function of density altitude. I found it
>>in someone's POH on the internet. If valid, this would be a very
>>convenient inclusion in a POH.
>>My questions for aerodynamically knowledgeable folks are:
>>1. Is this a valid calculation?
>>2. Was this formally published somewhere? If so, where?
>>3. Is the percent degradation in takeoff and climb performance
>>independent or is it dependent on the specific aircraft parameters?
>>
>>Your comments will be appreciated.
>>
>>
>>
>
>Opps. Different e-mail client than I normally use, and I hit the Send button
by accident the first time.
>
>I'm not sure what the pedigree of this chart is, but it looks similar to other
ones I have seen aimed at common light aircraft. The effect of density altitude
on take-off ground roll will be roughly the same for an RV as it would be
for a Cessna, as the impact is due to reduction in engine power, and increase
in TAS at lift off. So this part of the chart is probably just as accurate for
our RVs as it is for a SE Cessna. Or just as inaccurate.
>
>But the impact of density altitude on climb rate depends on excess power. RVs
need less power than a Cessna 172 to maintain level flight, but they have an
equal, or more power available, so they have much more excess power. A Cessna
sees a significant reduction in rate of climb with DA, as it doesn't take a very
big reduction in power available to bring the excess power to zero. If this
graph provides an accurate prediction of reduction of rate of climb on a Cessna,
it would be pessimistic on an RV. I.e. it would predict a bigger reduction
in rate of climb than would actually occur. For example, that chart predicts
that the rate of climb would be zero with a density altitude in the high teens.
But in fact, most RVs could easily climb above 20,000 ft.
>
>Kevin Horton
>
>
>
>
Message 11
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| Subject: | Re: Takeoff Distance vs Density Altitude |
Richard,
The chart came from FAA Pamphlet P-8740-2
http://www.faasafety.gov/gslac/ALC/libview_normal.aspx?id=6847
One site for a calculator:
https://www.beaufort.usmc.mil/weather/density_altitude_calculator.htm
other charts
http://www.flynewmexico.com/densityaltitudechart.htm
http://en.wikipedia.org/wiki/Density_altitude
.
enjoy
Richard Dudley <rhdudley1@bellsouth.net> wrote:
I have attached a graph that calculates takeoff distance increase and
climb performance decrease as a function of density altitude. I found it
in someone's POH on the internet. If valid, this would be a very
convenient inclusion in a POH.
Sherman Butler
RV-7a Wings
Idaho Falls
---------------------------------
Pinpoint customers who are looking for what you sell.
Message 12
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| Subject: | Re: Canopy Cover |
I have the light cover and think it is perfect for occasional use. -LB
On 6/25/07, Jerry Isler <jlisler@alltel.net> wrote:
>
> What canopy cover do you guys recommend for my RV-4? Van's website talks
> about a heavy cover and a light weight cover. Since my plane is mostly
> hangered, the cover will be used for the occasional overnight stay outside.
>
> There does not appear to be much price difference between the two. Also,
> where is the best place to get one?
>
>
> Jerry Isler
> Donalsonville, GA
> RV-4 N455J (45.7 hrs)
>
>
--
Larry Bowen
Larry@BowenAero.com
http://BowenAero.com
Message 13
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| Subject: | Re: Takeoff Distance vs Density Altitude |
Thanks, Sherman.
I see that it turns out to be a rather standard chart, Koch Chart, and
approximation for "personal aircraft".
Regards,
Richard Dudley
do not archive
Sherman Butler wrote:
> Richard,
>
> The chart came from FAA Pamphlet P-8740-2
>
> http://www.faasafety.gov/gslac/ALC/libview_normal.aspx?id=6847
>
> One site for a calculator:
>
> https://www.beaufort.usmc.mil/weather/density_altitude_calculator.htm
>
> other charts
> http://www.flynewmexico.com/densityaltitudechart.htm
>
> http://en.wikipedia.org/wiki/Density_altitude
> .
>
> enjoy
>
> Richard Dudley <rhdudley1@bellsouth.net> wrote:
>
> I have attached a graph that calculates takeoff distance increase and
> climb performance decrease as a function of density altitude. I
> found it
> in someone's POH on the internet. If valid, this would be a very
> convenient inclusion in a POH.
>
>
>
> Sherman Butler
> RV-7a Wings
> Idaho Falls
>
> ------------------------------------------------------------------------
> Pinpoint customers
> <http://us.rd.yahoo.com/evt=48250/*http://searchmarketing.yahoo.com/arp/sponsoredsearch_v9.php?o=US2226&cmp=Yahoo&ctv=AprNI&s=Y&s2=EM&b=50>who
> are looking for what you sell.
>
>
Message 14
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| Subject: | Re: Canopy Cover |
Jerry,
The heavy cover from Van has worked very well on my RV-6 for the last 2 1/2
years. My plane is only hangered about half the time and I have never had
any water in the cabin. I believe the light and the heavy covers both come
from BRUCE's covers.I haven't actually had my hands on a "light" cover but
for the differance in price.......
Charlie Ennis
Mt. Washington, KY
RV-6A N60CE
do not archive
Message 15
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| Subject: | Re: Takeoff Distance vs Density Altitude |
Density altitude today at 00V was 10,100' when the temp was 90 deg F.
Ron Lee
Do not archive
Message 16
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| Subject: | Re: Takeoff Distance vs Density Altitude |
I have had some interesting take offs and landings at Meadowlake.
I also had a interesting take off at Smiley Creek (U87) week before last. Terran
slopes down to the North. Wind out of the SSW between 10 and 13 kts. temperature
increasing. 7100 elevation and 4900 length. We should have left, rather
than walk over to the lodge for coffee. I was climbing slowly when i retracted
the gear. With the Bonanza the inner gear doors open, climb is NEGATIVE!
I got out the Bonanza book by Eckalbar. He said to set-up in short field take
off configuration at altitude 4500, stabilize speed at 100 trim for level flight.
Increase to take-off power and time to climb from 4800 to 5200 adn record
teh time to climb adn rate of climb. Repeat at 90, 80, 70, 60. Plot the tangent
from 0 this will be Vx and top of the curve (slope is 0) is Vy. I plan
to do this at 7000 ft to plot my actual performance as I am learning to fly in
Idaho backcountry.
Arrive early and leave earlyand chose airports wisely. I need to sell this airplane,
stop flying and get back to building.
Ron Lee <ronlee@pcisys.net> wrote:
Density altitude today at 00V was 10,100' when the temp was 90 deg F.
Ron Lee
Do not archive
Sherman Butler
RV-7a Wings
Idaho Falls
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