I was just perusing the Kitfox site and once again I saw the claim of 160mph cruise at 16,000ft with the 914
What's the highest you guys have actually been and what was your TAS?
I was just perusing the Kitfox site and once again I saw the claim of 160mph cruise at 16,000ft with the 914
What's the highest you guys have actually been and what was your TAS?
I was indicating 130 at 11.5 once. My GPS showed 170 ground speed, but that was the huge tailwind. I never figured the "true" airspeed. Honestly I was freezing my @$&!s off wearing shorts and a t-shirt at the time. But the tailwind was too big to pass up!
Been to 12.5 myself, everything seems to slow down a bit at those altitudes, kind of nice.
Dorsal ~~^~~
Series 7 - Tri-Gear
912 ULS Warp Drive
I think once I made it over 1000 ft.
steve
slyfox
model IV 1200-flying
912uls
IVO medium in-flight
RV7A-flying
IO-360
constant speed prop
A few years ago I got my Model IV up to 14.5, and still had 200-300 fpm climb. I don't remember the airspeed, but I was solo, less than half tank of gas, the engine was 100 SMOH, and it was a cool spring morning.
Michael Meyers
KF IV
Las Vegas, NV
I had mine to right at 12000. I had posted a photo of the Advanced Flight System showing 11500, but I can't find the photo.
Paul Zimmermann
LSRM-A
Garland, Texas
Haven't been over 10,000 but had to do a rate of climb test for the test program.
for interest, here are the results - I wouldn't claim my timing and my holding exactly to 65kts to be all that accurate, but it gives you the general idea!
cheers
ross
Climb Performance to 10,00ft @ 65kts
ALT Time Time interval/1000ft ROC/1000ft
1000ft Mt Beauty Airport 0
2000ft 875fpm
3000ft 750fpm
4000ft 847fpm
5000ft 826fpm
6000ft 689fpm
7000ft 584fpm
8000ft 548fpm
9000ft 523fpm
10000ft 13m15sec 485fpm
Ross
Mt Beauty, Vic
OZ
Sold to Richard and Scott Taubman in OZ, 2019. Kitfox SS7,Rotax 912is Sport, Airmaster CSP 75" blades.
Landcruiser and Cub off road camper (doesn't get any kudos on this forum!)
I'v been to 8000 feet with 52 horse power.
Ross, I suspect the altitude in your table are from the altimiter and not corrected for density altitude? Here's your climb points on the graph I made during phase one flight testing. Classic 4 at 760 pounds gross weight and 52 horse power Rotax 503.
Tom Jones
Classic 4 builder