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Old 24th Nov 2006, 02:32
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Sideslips

Just a quick question from a newbie learner. Is it safe to do sideslips with flaps down?
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Old 24th Nov 2006, 02:43
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Depends on aircraft type. i was taught in Pipers, and taught to sideslip in a piper with flap in all positions, but as for the cessna product i cant comment, Jabrius can be slipped with full flap as long as your below 70kts and you dont mind the howling of the wind through the gap between the flap and the fuse right next to the window.

using my logical thinking, i would assume flap shielding of the rudder would be more prevalent in a T tail aircraft.

the best source would be to consult the POH.

Last edited by Ultralights; 25th Nov 2006 at 10:27.
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Old 24th Nov 2006, 04:18
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Yep, with flaps sheilding rudder and elevator, control effectiveness for these will diminish the slower you go.
If you get close to the stall angle of attack (and speed), or actually stall, you may not have the ability to reduce the angle of attack quick enough to correct this situation, as you will probably be at a low altitude in landing configuration to start with. And, if you encounter a wing drop.... !!
My advice: be real careful, particularly in high wings with big flaps, C152,
C172, Cubs etc.
See how they feel/behave at altitude first (3000' +), and if you feel the need to side slip with a lot of flap to get back on profile, go around!
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Old 24th Nov 2006, 04:55
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Sideslip & flap

Originally Posted by YesTAM
Just a quick question from a newbie learner. Is it safe to do sideslips with flaps down?
Other than anything in the POH restrictions in general you can slip (side& forward) with full flap and more to the point the sideslip is a very useful technique to have it your arsenal.

A couple of situations it is useful in is as part of x-wind landing and forced landings. With a slip you can dial up the amount of extra sink within a wide range.

Just remember you can lose alt very quickly.
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Old 24th Nov 2006, 06:00
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The answer is NO, it is not.

At least, until you have been fully briefed and demonstrated and taught by a competent instructor in the specific aircraft you may wish to sideslip.
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Old 24th Nov 2006, 07:16
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I agree!

Always check what the flight manual says, and then get someone who is competent on type to demonstrate side slipping in that aircraft.

Each one is different!

Also, if its for the sake of an approach, one might say you've stuffed it and got high, no big deal! go around and have another crack

good fun though
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Old 24th Nov 2006, 11:01
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Talking

Originally Posted by Capt W E Johns

At least, until you have been fully briefed and demonstrated and taught by a competent instructor in the specific aircraft you may wish to sideslip.
Fully endorse that additional comment.

Just got to talking about this over dinner and and cheeky red and some old timer aviators ... I had forgotten all about this very famous "sideslip" reference: http://en.wikipedia.org/wiki/Gimli_Glider

W.
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