Cessna

[thing]

Does anyone know the source of the weird sound Cessnas make as you flare? Like this..at about 2.20 to 2.30 (not the stall warner) sort of a sound like gas escaping from a bottle. I reckon it might be the wing air intakes for the cockpit ventilation but I'm not sure.

[Big Pistons Forever]

Sound is from the stall warn. In the C 172 it is a trumpet with a reed in it. Unlike the electrical vane type it is not a on/off unit. You will hear the air rushing into the trumpet before there is enough air flow to push the reed over enough to sound the horn.

[thing]

Thanks, knew it was some sort of 'wing hole thing'!

[rantax82]

like one of my instructors was use to say that's the "good landing" indicator noise

[dont overfil]

I've asked this question before. Our c182 does it as well usually when heavily loaded. Ours has an electric stall Warner which goes off at the same time.
I thought the noise may come from the flaps but you may be correct.

D.O.

[pmh1234]

I don't think the sound has anything to do with the stall warner.
Quite sure the sound is comming from the air vents.

[flyingpony]

I have always assumed this noise was generated from the (almost) windmilling prop at a high AOA in the flare.

[Halfbaked_Boy]

Why not ask Cessna? At least then you'll have a definitive answer

I would be interested to know also.

[Lew747]

I've also wondered this. Doesn't seem to be stall horn related. For me it's always when I pull the nose up to hold-off, then flare. I put it down to a change in airflow around the cabin/windscreen as the pitch is increased and power reduced.

[rats404]

Stall warner.

[24Carrot]

Wheel spin-up?

[thing]

It's before the wheels touch the ground. Happens on a 152 as well but not a PA28.so it's obviously something peculiar to Cessnas.

[Desert185]

Stall warning horn.

[Flyingmac]

I've heard this sound on several types. It's a sigh of relief from the right seat.

[Weekend Flyer]

It is caused by changing airflow over the Engine Baffles just inside the Cowling. The noise on our C150E changed when we replaced/repaired worn Baffles.

[thing]

Any advance on stall warner, engine baffles, wheel spin up, fresh air vents, flaps and windmilling props?

[flyingpony]

It could happen

[24Carrot]

Any advance on ...

OK, can't resist a challenge!

Those wheel struts look just like a giant tuning fork!

[S-Works]

It's the stall warner. Same as my 172.

[localflighteast]

I always thought it was the sharp intake of breath from my instructor as we are about to leave a crater in the ground (or go bunny hopping down the runway!)