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Doors opening in flight.

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Doors opening in flight.

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Old 27th Oct 2010, 20:24
  #41 (permalink)  
 
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"I leave the top lock open sometimes on purpose in a PA38."
I'm intrigued. Any reason?
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Old 27th Oct 2010, 20:34
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I learned to fly in a PA28 and the top lock is not easy to secure from the pilots seat.
I had it pop open on my first or second solo and carried on flying,CFI said I should have landed at once,I thought the slipstream would keep it shut,but apparently the Bernoulli (spelling?) effect can make it open.
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Old 27th Oct 2010, 20:47
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I'm intrigued. Any reason?
It can get like a sauna in the thing even in the middle of winter if the sun is out. Flying in the highlands dress to survive and all that.

If you have the vents full on you can still be sweating. If you leave the top open there is more air flow through the vents because of the venture effect through the top.
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Old 27th Oct 2010, 21:00
  #44 (permalink)  
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and ended up pulling the chute.
Oh yeah... the "I give up, I don't want to be a pilot any more" handle.
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Old 27th Oct 2010, 21:04
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In the checklist on PA-28 there is a guide for how to close the door in the air, the first point is to reduce speed!

I do not know how it is on the C152 to close the door in the air, must the speed reduced ?
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Old 27th Oct 2010, 21:14
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I do not know how it is on the C152 to close the door in the air, must the speed reduced ?
Just shut the door is my recollection.
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Old 27th Oct 2010, 21:24
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I do not know how it is on the C152 to close the door in the air, must the speed reduced ?
The POH says...

Accidental opening of a cabin door in flight due to improper closing does not constitute a need to land the airplane. The best procedure is to set up the plane in a trimmed condition at approximately 65 KIAS, momentarily shove the door outward slightly, and forcefully close the door.
Although the only time I've had it happen it was with an instructor in the RHS, and he just stuck his hand out the window and slammed it shut again, at normal cruise speed.
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Old 27th Oct 2010, 22:35
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I seem to recall that the procedure for closing an open door in the PA-28 is to slow to 68 knots, open the storm window and then shut the door.
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Old 27th Oct 2010, 23:19
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How the hell do you manage to get the door open in a PA28 by accident?
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Old 28th Oct 2010, 12:31
  #50 (permalink)  
 
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How the hell do you manage to get the door open in a PA28 by accident?
Dunno how but it happened to me and a mate on a jolly out of Wellesbourne. A quick circuit, land, onto the taxiway check the latches reshut the door and off to go again. Probably hadn't got the latch properly engaged first time round.
I seem to recall that you can steer a C150 by opening and closing the doors and you can use the windows on some as an ASI by seeing how far up they hang in the airflow when opened.
Once at old Sarum I was about to go up for a revalidation flight in a C150 when I was informed there would be a slight delay as the student before me had pulled the door jetison lever instead of the handle. Wait one for a large magnet to find the safety spring clip in the grass!
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Old 28th Oct 2010, 21:24
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I seem to recall that you can steer a C150 by opening and closing the doors
Well, it's in the book for steering a floatplane when going backwards on the water, but I've not heard it recommended as a standard technique for steering whilst in the air.
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Old 28th Oct 2010, 22:43
  #52 (permalink)  
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Quote:
I seem to recall that you can steer a C150 by opening and closing the doors
Well, it's in the book for steering a floatplane when going backwards on the water, but I've not heard it recommended as a standard technique for steering whilst in the air.
Well... Yes. I had weighed the plusses and minusses of presenting that whole concept, as it has no real use in flight, other than as a learning exercise in aerodynamics. There is some potential for damaging a door, and I would rather not take responsibility for that.

That having been said, as I happen to own a C-150 door, which is convenienly attached to an airworthy C-150, I can attest that gently opening the left door about 6 inches, at cruise speed, will cause the airplane to gently bank to the right. Readers are welcome to postulate as to why right rather than left, without overstressing another C-150 door, (or instructor).

As for on the water, yes, but again, very limited use. It's one of those things where if you really need to do it, things are probably beyond the point where it will help anyway....
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