Today's Message Index:
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1. 01:00 AM - Re: Canopy wide open (Tyson V. Rininger)
2. 06:30 AM - Re: Canopy wide open - Will depart aircraft (Charlie Lynch)
Message 1
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| Subject: | Re: Canopy wide open |
As a back seat photographer in numerous Nanchangs and Yaks, I might be
able to give a little insight about flying with the canopy open.
Although I don't know related Vne speeds or the canopy's maximum speed
before departure, I can say that if you notice the rear canopy open,
close the front canopy immediately. So long as the front canopy is
closed, wind buffeting and pressure is quite minimal and unless the
canopy has major existing problems, it's unlikely to depart the
aircraft. However, I have noticed that as soon as the front canopy is
opened to even the first notch (Nanchang), buffeting in the rear begins
to occur. With some flights at normal cruise speed, I've had to
partially close the rear canopy to reduce the pressure and 'bypass' air
coming into the rear until the front canopy has been completely closed.
As far as the effects on aircraft speed, I've flown along in just about
every formation position with the rear canopy open and the aircraft (and
pilots) seem to perform quite well. (This is where I'm a bit out of my
jurisdiction since I'm not a pilot...but I have debriefed!) And on that
note, I really do have to commend the design of the Yaks n' Changs when
it comes to flying with the rear canopy open. Of all the aircraft I've
flown in, this design is the most comfortable and the most stable to be
a passenger in along with the ease of operating the canopy numerous
times during a single flight.
Hope that provides some helpful insight from a somewhat versatile
passenger point of view.
Cheers,
Tyson
Message 2
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| Subject: | Re: Canopy wide open - Will depart aircraft |
Hi,
A number of years ago I was flying my CJ with both canopies open with a
GIB. We did several loops. Coming out of the bottom of the last one,
the rear canopy "departed" the aircraft. Lots of wind, noise and one
very surprised passenger. But fortunately no damage. The exit speed is
around 260 - 265 KPH. My puke screen had been removed which may have
prevented the canopy loss had it been installed. I would not recommend
flying with both canopies open at any speed above 250 KPH based on this
experience.
Best,
Charlie
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