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Low speed takeoffs and stall Airpseed

 
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gary(at)liming.org
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PostPosted: Mon Jun 05, 2006 10:26 am    Post subject: Low speed takeoffs and stall Airpseed Reply with quote

Congrats, Jon!

At 11:42 PM 6/4/2006, you wrote:
Quote:
It finally flew!
 I swear this plane leaps off the ground at about 25mph indicated... even tho that is not accurate, it still is relatively close enough to say that this is STOL!

That is one thing particular to the 701/801's - getting an airspeed indicator to work at "low" speeds.  By way of experimentation, my Falcon airspeed indicator doesn't register until about 35-40 mph.  My Dynon D10 doesn't come up until 40, either.  This is pretty close to stall speed, so it would be nice to know of something that has some accuracy starting at 20-30 mph.  My Lift Reserve indicator comes up sooner, and I do pay attention to that, but anyone know of an airspeed indicator that is more sensitive at the slower speeds?  Anyone have any real experience with when the ultralight style airspeed indicators "come up?"

Gary


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p.mulwitz(at)worldnet.att
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PostPosted: Mon Jun 05, 2006 11:44 am    Post subject: Low speed takeoffs and stall Airpseed Reply with quote

Quote:
My Lift Reserve indicator comes up sooner, and I do pay attention to
that, but anyone know of an airspeed indicator that is more
sensitive at the slower speeds?

I have installed a Lift Reserve Indicator in my XL, but I am a long
way from flying. I want to ask you about your experience with this
device. With it working at low speeds, why do you want a low speed
airspeed indicator? Is the LRI sufficient to tell you when to
rotate? Perhaps this is just a matter of having a backup indication.

Paul
XL wings.
do not archive


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