Full Stall Landing?

wrote:
Very few airplanes will reach stall angle in the landing
attitude. The gear won't allow it. Most pilots are seeing sink, or at
most, partiall stall, not full stall. It's proven when a sudden gust
lifts the airplane clear of the pavement just after touchdown even with
the nose all the way up.
The AOA would need to be 17 or 18 degrees to reach stall.
Measure your wing chord against level with the tailwheel on the ground
or the tail of a trike just clear of the ground, and you'll likely find
something like 12 or 15 degrees. Remember, too, that the stall speed
in ground effect is considerably lower than the book value.
I did some quick and dirty chord angle measurements in the
hangar. The Citabria has 12 degrees in the three-point attitude, and
the 172 has 14 at the root and 12 at the tip with the tail right on the
ground. With the flaps down there's 25 degrees at the root. So the wing
would stall inboard if the tail was really close to the runway, but the
rest of the wing is still flying.

In this context I'm not sure what a "full stall" means but the wing is
certainly not without lift. The Citabria is almost a special example
though. In the 3pt position, the Citabria (or at least the Decthalon
that I instructed in) is no where near stall. You fly it right onto the
runway in the 3pt position. If you did full stall it, the mains come
down in a crash.
The J-3 is different. You really need to be pretty close to the stops
to have the tail touch down at teh same time. However, the J-3 is
forgiving and if you touch down with the tail still a foot up, the
plane will be nice to you. However, the wing still does produce lift.
In the Chief, I often had the upwind wing lift up as I pulled off the
runway at about 5mph during a gust (forgetting to set the controls for
the wind). So, if that is your definition of full-stall in this
context, then it certainly isn't.



-Robert, CFII

On 10 Nov 2006 08:20:17 -0800, "Robert M. Gary"
wrote:


Danny Dot wrote:
In my opinion the use of the term "Full Stall Landing" is a misnomer. At
least for me the term "Extreme Slow Flight Landing" would be better. I
don't put the wings into a full stall before touch down when I land as slow
as possible. I put the airplane on the edge of the stall and fly it to the
ground. I also use feel of the airplane more that airspeed.

This works for me. Maybe others attempt and get a full stall before
touchdown.

I full stall my Mooney. Wheels touch when yoke is at stops.
I full stall the Deb from a few inches. The yoke doesn't make it all
the way back, but you can feel the stall and the quick settle onto the
mains.



-Robert
Roger Halstead (K8RI & ARRL life member)
(N833R, S# CD-2 Worlds oldest Debonair)
www.rogerhalstead.com

"Danny Dot" wrote in message
...
In my opinion the use of the term "Full Stall Landing" is a misnomer. At
least for me the term "Extreme Slow Flight Landing" would be better. I
don't put the wings into a full stall before touch down when I land as
slow as possible. I put the airplane on the edge of the stall and fly it
to the ground. I also use feel of the airplane more that airspeed.

This works for me. Maybe others attempt and get a full stall before
touchdown.

Any comments?

Danny Dot


I generally prefer wheel landings over three pointers.

--
Geoff
The Sea Hawk at Wow Way d0t Com
remove spaces and make the obvious substitutions to reply by mail
When immigration is outlawed, only outlaws will immigrate.

On Fri, 10 Nov 2006 17:13:14 -0500, "Capt. Geoffrey Thorpe" The Sea
Hawk at wow way d0t com wrote:

"Danny Dot" wrote in message
...
In my opinion the use of the term "Full Stall Landing" is a misnomer. At
least for me the term "Extreme Slow Flight Landing" would be better. I
don't put the wings into a full stall before touch down when I land as
slow as possible. I put the airplane on the edge of the stall and fly it
to the ground. I also use feel of the airplane more that airspeed.

This works for me. Maybe others attempt and get a full stall before
touchdown.

Any comments?

Danny Dot


I generally prefer wheel landings over three pointers.

You don't do three pointers on the wheels? Tail skid?
Roger Halstead (K8RI & ARRL life member)
(N833R, S# CD-2 Worlds oldest Debonair)
www.rogerhalstead.com

Danny Dot wrote:
In my opinion the use of the term "Full Stall Landing" is a misnomer. At
least for me the term "Extreme Slow Flight Landing" would be better. I
don't put the wings into a full stall before touch down when I land as slow
as possible. I put the airplane on the edge of the stall and fly it to the
ground. I also use feel of the airplane more that airspeed.

This works for me. Maybe others attempt and get a full stall before
touchdown.

I think most people use the term "full stall" with respect to landing
as you got as much lift from he wing as possible. If you define "full
stall" as no lift, then certainly no certified plane lands like that.
In flight "full stall" has a very different meaning, meaning a full
break, but you'd never know that you achieved that on landing.

-Robert