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Thoughts on stall warning device??
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n85ae

Joined: 14 Mar 2007
Posts: 403

Posted: Mon Aug 13, 2007 1:38 pm Post subject: Re: Thoughts on stall warning device??

My plane flies exactly like Kitfoxmike's description. If you're in a glide, you really aren't going to get any stall out of it. It'll basically just mush,

and you'd be a pretty poor pilot if you didn't know the mush was about 

to start. I used to fly with a vane type AOA indicator on the left lift

strut when I test flew the plane, and found pretty quickly that a Kitfox

like mine doesn't need an AOA device. It is very easy to tell where

it is with regard to the stall. 



However, full power with the IO-240 and the 74" prop I have, will result 

in some REALLY exciting stalls. However, just like the power off stall,

you'd be a real idiot not to be awake in these circumstances either.

Regards,

Jeff Hays

Series 5, IO240B

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kitfoxmike

Joined: 05 Dec 2006
Posts: 373

Posted: Mon Aug 13, 2007 1:53 pm Post subject: Re: Thoughts on stall warning device??

I find if you keep the ball centered and the AIS over 60 you will not ever have a problem, turn or no turn.

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john(at)leptron.com
Guest

Posted: Mon Aug 13, 2007 2:09 pm Post subject: Thoughts on stall warning device??

Jeff,

You made me think of the first time I got my fox to spin. I kept trying to

get it to stall , steeper each time and more turn, push a pedal at the

break, it would just spiral down. I kept it up one morning until the thing

made a power break, and I pulled the throttle and the nose did a pendulum

type of thing, with the nose falling and tucking under. At this point the

baby just started to spin. I think it took a turn just to figure out what

happened. 



I think I had a tear when I got it stopped. 



John Oakley





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wingnut

Joined: 11 Jan 2006
Posts: 356

Posted: Mon Aug 13, 2007 4:57 pm Post subject: Re: Thoughts on stall warning device??

Is my Kitfox really so unique that it's the only one that can be stalled in a power off glide? If it's not then isn't it dangerous to say things like "my Kitfox doesn't stall so yours won't either"?

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_________________
Luis Rodriguez
Model IV 1200
Rotax 912UL
Flying Weekly
Laurens, SC (34A)

john(at)leptron.com
Guest

Posted: Mon Aug 13, 2007 5:46 pm Post subject: Thoughts on stall warning device??

Luis,

I believe it means you are in the rear of your balance envelope. There is a

good deal of flight difference between the front and rear of the envelope. I

actually keep about 25 lbs of "emergency" stuff in the baggage compartment

to make mine stall a 3 point, other wise it is in the front end of the

envelope and will not stall. I have flown 14 or 15 different foxes and they

all have different characteristic depending on the position of the

horizontal stabilizer and the washout of the wing along with weight and

balance. 



John Oakley

4 speedster

912ul

Cap

721 lbs



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wingnut

Joined: 11 Jan 2006
Posts: 356

Posted: Tue Aug 14, 2007 4:27 am Post subject: Re: Thoughts on stall warning device??

 	  Quote: 	
		  There is a good deal of flight difference between the front and rear of the envelope. 	




OK. Sounds like a good reason to not give advice based on broad generalizations about flight characteristics.

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_________________
Luis Rodriguez
Model IV 1200
Rotax 912UL
Flying Weekly
Laurens, SC (34A)

kitfoxmike

Joined: 05 Dec 2006
Posts: 373

Posted: Tue Aug 14, 2007 5:32 am Post subject: Re: Thoughts on stall warning device??

Ok, not always will mine stall on the landing for the three point.  So what do I do? well I don't add weight to the luggage compartment.  What I do now is just put in the right pitch on final and use the throttle to settle her on the runway, makes a nice gentle touch down every time.  When the wife is in the plane and we are running heavy(by the way my empty weight is 650) full fuel and the wife in the right side, and the density altitude is up there, I tend to drop and stall on landing. So a bunch of throttle in this configuration above is needed, otherwise when by myself and less fuel, I  just fly it on the runway with the pitch up and use throttle to ease it on the runway. OH! and NO flaps.  I have no reason to land with a 100ft roll out anyway. I guess this allows the nose to come up as well.

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