WWII U.S. NAVY PILOT TRAINING FILM " THE INVERTED SPIN " STEARMAN BIPLANE 87624
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- čas přidán 1. 05. 2020
- This film is unclassified. It is a 1940’s era, black and white movie. The Navy Department presents a United States Navy training film. Produced for the Bureau of Aeronautics by Wilding Picture Productions, Inc. Copyright 1943 by Wilding Picture Productions, Inc. The Inverted Spin. Intermediate Acrobatics, Part VII. The purpose of the film is to teach pilots how to enter into - and pull out of - an inverted spin maneuver. The movie opens with a forward view of a plane; our viewpoint is from behind the propeller 1:05. A plane is flying upside down 1:25. The plane is falling and spinning upside down 1:40. A plane flies with two passengers in an open cockpit 2:00. Pilot adjusts dials to get ready for an inverted spin 2:30. A plane flies and gets ready to perform the inverted spin maneuver 3:00. The plane flies upward and into the inverted position 3:15. The plane falls and spins downward 3:30. An aerial view of the pilot’s feet inside the cockpit 3:45. The oil pressure gauge is shown 4:20. The plane flies straight 4:30. The plane flies upside down and spins facing downward 5:16. The plane goes into an inverted spin 5:50. A plane flies directly downward and then up again into an inverted position where we see the pilot begin to control the spin 6:30. We have a view from behind the propeller 6:53. The horizon appears before us 7:02. We have a pilot’s view of the horizon as the pilot spins the plane into different positions 7:40. Words appear on the screen. “The inverted spin bears some relation to the normal spin in that any plane that is difficult to spin may also be difficult to bring out of a spin.” 7:50. “The higher the altitude at which the plane is spun, the more difficult it will be to bring it out. An increase in altitude has the same effect as an increase in wing loading.” 8:00. “The inverted spin differs from the normal spin in that recovery from an inverted spin is often more rapid and more certain than recovery from the normal spin.”. 8:15. A plane flies straight up to attempt the inverted spin 8:23. Pilot controls are adjusted in case of an emergency 9:00. Plane falls to earth in the inverted spin and then pulls out, perfectly level 9:45. The Navy Department, United States of America.
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I could just imagine myself learning inverted spin recovery - "sorry sir, I can't tell which direction we're turning because my turn indicator is covered in vomit...".🤮
I got it, I got it! Any plane that was in a spin before but not spinning now, has therefore already been spun within the parameters equal to, but not less than the centrifugal force within it's over all deviation of left foot right foot.A procedure better known by it's top secret name, Tipsy topsy turvy! Or I go, you go, we go! Snap; the stick all the way back until you hear a cracking sound,then kick left next, kick right. Now do the hokey pokey, If that doesn't work, say 3 hail Mary's and kiss your butt good bye!!!
Excellent! Thank you!
I learned to fly in a 150 Cessna in the early 80,s. My instructor taught spin recovery. One day we did what I thought was the normal way but found ourselves in an inverted spin. The instructor asked, what did you do? I replied I don,t know. I applied the normal way of recovery which worked just fine. After that we finally figured out how to do it on purpose and did it quite often.Years later I was told that you don,t have to do anything to recover a 150 or 152 but let go of the controls, never tried it tho.
What’s crazy is now I don’t think they teach new pilots by actually spinning the aircraft,because it’s so dangerous,especially in a twin engine with one engine out. Think too many pilots got killed just practicing spin recovery,.
I have never spun a Stearman, remember they are all old aeroplanes now. But I am familiar with the Walter Extra which spins beautifully, erect or inverted.
That's clearly an N3N, not a Stearman.
Are we going to get a whole video of leaders?
For you pilots out there: How much altitude do you lose in this type of recovery? Lot a variables I'm sure but an educated guess?
if done correctly the acceptable loss of altitude in a inverted spin recovery is approximately 1500' (From the U.S. NAVY PRIMARY FLIGHT TRAINING MANUAL on the N2S)
www.stearman-aero.com/media/text/Stearman/Aerobatic_Flying/Stearman%20Aerobatics%20-%20US%20Navy.pdf
@Big Steve Only about 300 ft in a 1 turn spin in a 152.
I can tell you that with a Great Lakes it takes abut 100 ft if you start with a power-off _flat_ inverted spin. You just come back on the stick and pull some G as you come around so you don't pick up any speed pointing straight down momentarily. Just neutralize the rudder and ailerons and pull; if you were right side up you'd be tucking under- but since you're inverted, it just pops around fast and easy.
A *stabilised* spin, upright or inverted, is actually a stable manoeuvre. Unfortunately, few are taught even the latter these days outside military flight training. Height loss per rotation is low or rate per minute is far less than you'd think once the spin stabilizes and flattens out to a steady rotational rate , depending upon type characteristics. Note I said once *stabilized* in the spin. A spiral dive or incipient spin entry or recovery is not a spin per se. The critical factor is how near the ground you are relative to time/vertical distance to recover, and competent practical IA familiarity and capability with execution of the recovery procedure. You'd never intentionally initiate a spin in proximity to the ground with questionable or insufficient time to recover. Similarly inverted spins. Although the latter can occur inadvertently, IMV&E that's truly unusual or the exception. One really needs to set up and deliberately enter an inverted spin for the most part, and to stabilise it in the types I've executed them in, deliberately hold in pro spin control.
@Art Bell As of 1984 ,no hardly any flight schools in the US teach spin recovery. I worked for a year at flight school and there I learned the reason was that many flight instructors are afraid to do spins themselves which is certainly a disservice to their students.
no thank you.