I flew yesterday. Perfectly calm conditions. a 5000 foot tow
followed by several 1 minute runs at varying airspeeds from 35 to 75
mph. downloading the video now, hopefully the numbers work out. more
to come.

At 15:56 30 October 2008, wrote:
>I flew yesterday. Perfectly calm conditions. a 5000 foot tow
>followed by several 1 minute runs at varying airspeeds from 35 to 75
>mph. downloading the video now, hopefully the numbers work out. more
>to come.
>

alright the data is in and its looking fairly good. looks like minimum
sink is 170 mph at about 41 mph and best glide is 23.5:1 at around 52
mph.

data and graphs here:

http://spreadsheets.google.com/ccc?key=pNiLlLBVeZ9WBWsGi2YHtGw


-Tony Condon
Cherokee II N373Y

Tony,

That's quite a sink rate. I believe you meant 170 fpm

Dan Wrobel

> alright the data is in and its looking fairly good. *looks like minimum
> sink is 170 mph at about 41 mph and best glide is 23.5:1 at around 52
> mph.

Uhh, that makes your L/D somewhere in the neighborhood of .241/1
(point two four one to one!) at min sink. I knew you are kinda bad ass
after all that wood/fabric silver chasing, but I had no idea that Iowa
had such incredible lift ;-). Pffft, Minden nothing, Iowa or
bust!...Boy does your polar pull out of it's nose dive between 41 and
52 mph! Oh wait, you meant 170 fpm, not mph dammit!

-Paul

yea yea, if you look at the time that i posted this note you'll be able to
infer that it was early in the morning after several hours of number
crunching. 170 fpm it is. the cherokee has a lousy glide ratio, but not
THAT bad :)



-Tony Condon
Cherokee II N373Y