Why does this maneuver work? @LSLGuy, Richard P & anyone else that wants to chime in.
Back story: I was raised in a family of private pilots / General Aviation.
Dad, Mom, older sister, myself.
Started learning in earnest in 1965 and in a year or so I had my Pvt Lic. ( many stories for another time. )
With a total of 54 hours in my log book, I bought a 1946 Swift of 85 HP. So began my lessons in underpowered aircraft that many were unwilling to fly. I went around the patch one time with the guy that brought the plane to Tulsa and that was it. I did have the little pilot manual.
Main point is that I learned a lot about accelerated stalls, wings that stalled suddenly & had some great help from a local pilot who had flown most anything except major airline and the latest military stuff.
The Swift & I survived and so we can jump ahead to the 1980’s and the 1970 C-310 Q TC mapping airplane I flew.
One day after several times when I needed to make a very short close in 180° turn to a landing from a point a little too high & close I chose to try what I learned to do while flying pipeline patrol in old straight back, square tailed C-150’s.
As best as I can describe it:
Power off,
full flaps as I start the turn,
keep the speed about a bit high as I add major nose down, to unload the wings in the turn ( them darn accelerated stalls live in there and I had a very healthy respect for them )
which had the plane coming around quickly and being pointed down at a spot just before end of the runway.*
- Makes for a very tight 180° turn and a major loss of altitude.
flair to bleed off the excess airspeed and touch the mains at the runway start.
Brake as hard as needed to, a) show off because the tower asked you to do it to show new controllers, b) just to please me, c) needed to get down fast or for a very short distance to the only taxiway, or any other rationalization I needed to devise for myself.
Now for the Question.
Why does this work?
In a high wing Cessna with barn doors for flaps, it seems to be a reasonable thing to be able to do.
In aircraft with not so great flaps ( C-310, Comanche, etc., the need for a lot of extra drag when dirty which the C-3120 can provide and the Comanche not so much ) is it just the fact that it is an ‘unloaded’ turn because of the forced decent that makes this work. or ???
Question the #2:
How big an aircraft could this be done with? ( proper altitude, speed and distance to fit the aircraft added of course ) A-26, B-737, bigger???
Could this be examined in a really good SIM to see if it would work? Maybe as an emergency maneuver?
I understand the lack of interest in using someone else’s 400,000,00.00 airplane as it is not a good idea to just go see, … but… <VEG>
I began learning to do this because of all the pilots dying from ‘base to final’ turns in the traffic patterns back then. Hotter, heavier aircraft were the usual killers. ( bad pattern work and if following all the correct procedures, those accidents/bad judgements would never happen. But…
In my world back then, like the military, getting the job done was very important. Kind of like AG flying, if a pilot does not want that particular risk reward, don’t do it but it is not going to get 'outlawed because it needs to be done and some pilots are willing to accept that kind of flying. Just like fighter pilots, don’t do it, it is not making some one a lesser pilot, just don’t judge those that do. [/rant] ( where did that come from? )
Anywho, is that some standard maneuver I stumbled into?
Is is taught anywhere?
What is it called besides ( dangerous, foolish & stupid ) ?
Aerodynamically, why does it work? ( just because for a given angle of attack the stall speed decreases as the weight is removed for any reason? ??)
Aside: I flew off TUL for many years in many different aircraft, visited APP & TWR a lot, late at night when things were slow, becoming friends with the people, setting up special mapping flights that were going to be a PITA for all concerned, etc.
Biggest thing is I had to refuse nor hesitated to do anything they asked me that would make their job easier, even volunteering to put myself in the less favorable position in their airspace. Major fun making for me over the years.
Turn NOW !!!
Can you delay?
Can you make the approach from there?
You will be # 450 to land. “NO problem says I”
Can you switch runways from there?
Can we use your for a new controller training problem today?You bet, fun stuff." says I.
So I got to play a lot, show off, and save a lot of time using crosswind runways to make it easy to get to the hanger, etc., etc…
I never had to turn down a request ( lucky in that ) but if I was close to the wire, they picked up on it quick and I got the befit of the doubt on how close I was to the edge of the law.
One more thing that made my flying a lot of fun was a gig I was working at night that had me in a Cherokee Arrow, at 2500 AGL at a marked VFR reporting point + or - 2 minutes every morning early. Last flight of the night.
It became this:
They would be watching for me and be the first to transmit.
TWR "08J, squawk 25xx & ident.
O8J “click of the mike.”
TWR "Roger O8J, have you at yyy at3200 with information yyy. I always had it, part of the game.
O8J “click click.”
Minute or two of silence… ( remember, it is early )
TWR “O8J, cleared to land runway 8 ( no matter what the wind was doing ) & cleared to the ramp. Monitor this frequency.”
O8J “three ‘clicks’.”
Sometimes I really miss doing my work.