Eagler's Nest
Airframes => Single Seaters => Topic started by: Tom Stephens on August 09, 2015, 10:12:48 AM
-
I weigh 165 with clothes. Can you give me an idea of the LE climb rate with a 37hp?
Tom
-
I weigh 165 with clothes. Can you give me an idea of the LE climb rate with a 37hp?
Tom
From the old group archives... Way way back in 2013
erich rempert
Aug 29 6:55 PM
How about using the 45hp engine?
~Erich
From: joe spencer <rockiedog2@....>
To: "EaglersNests@yahoogroups.com" <EaglersNests@yahoogroups.com>
Sent: Thursday, August 29, 2013 6:23 PM
Subject: Re: [DEr's read Msg15985] Higher elevations...
i agree
i have flown mine with a well tuned 37 horse at DA of 5800 feet and there's nothing left. very little climb margin. minor downdrafts would exceed the available climb rate. there's just not enough air left for the prop, motor and wing to work with on our low powered planes. mine is a very light short wing and climb prop
From: Sam Buchanan <samcbuchanan@....>
To: EaglersNests@yahoogroups.com
Sent: Thursday, August 29, 2013 4:35 PM
Subject: Re: [DEr's read Msg15985] Higher elevations...
On a summer day your field could reach 7000' DA. At that density altitude even a properly jetted engine will only produce ~75% of sea-level power. Climb performance will also take a hit.
An Eagle is gonna be struggling that high. You need a plane with a geared engine.
Sam
On Aug 29, 2013 3:14 PM, "Norman Heistand" < wrote:
Just need to rejet the carb for the altitude then it should be okay. Just like driving your older car in the mountains.
Norm Heistand my .02
On Thu, Aug 29, 2013 at 2:05 PM, engrv7@... wrote:
Are there any known XL's flying out of field elevations of 5000' or greater?
My elevation here is 5510' msl.
Stan
-
Thanks Dan,
OK, so I'll take info on both the 37HP and 45HP climb rates.
Tom
-
Tom
I have the 45 hp, and with pilot wt, coats, radio ETC my takeoff weight was 255, field elevation 6,200 feet, density altitude over 8,000 and i climbed to over 11,000 feet. I would think with a weight of 160 and 37 hp it should work, with the right prop. If deciding on engine i would recommend the 45. My take off roll at 6,200 was about 800 feet whereas at 250 feet altitude, where i normally fly is about 150 feet.
-
Les,
I had seen your video back right after you posted it. I was mesmerized!
So at Oakdale, what would you say your climb rate is?
Tom
-
With my calibrated test equipment on board cross checked by gps and stop watch during multiple rate of climb tests with the performance prop i am gettig 650 fpm at 243 feet msl on a 70 degree day
-
Les,
Very much appreciated, that's a nice climb with your 45hp! Hope to see you at Rio Vista.
Tom