How to do an inverted flat spin

Inverted flat spin demonstrated in a Pitts S1S

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[grandaddyc]

Some aircraft do not recover from a flat spin (invert or no) because of lack of airflow over control surfaces ,also bailing out is diecie at best. My advice try something else ,remember height is cheap insurance!

[s1spittsdriver]

@grandaddyc My advice: Only do it planes that do recover !! Seriously though, don't do this stuff unless you know your stuff or you are with an instructor who knows his stuff !!

And Granddayc: All serious aerobatic types, made for advanced aerobatics, recover from inverted flat spins quicker and more positively than upright flat spins - the reason, well you work it out if you know your stuff !!

[s1spittsdriver]

@ssairshows Sir, learn from an ex aerobatic World Champion, Xavier de Lapparent:

For the inverted flat spin he states:

The gyroscopic reaction resulting from the fwd stick position is unfortunately contrary to the rotation of yaw; therefore it is necessary to bring the stick back very carefully - the spin will then accelerate and flatten further.

Other authors state this effect works in some aircraft. If it does not work in your a/c perhaps keep an open mind that it might in others :o)

[ssairshows]

@s1spittsdriver In upright or inverted spinning the elevator can and does accelerate the spin when unloaded however this discussion is about the inverted flat spin which cannot be accelerated. This training video I recently made shows this quite clearly. Please search YouTube for this video ID: PhfT8gCOCy0

[grandaddyc]

@s1spittsdriver As you like, but beware the fat passenger in the rear seat or the low powered engine in the front. If you are saying the relative airflow is from above you in invert flat spin this would be relative to the rate of rotation and the blanketing effect of the wings and fuselage surely .but enough armchair stuff.

[s1spittsdriver]

@ssairshows Well sir, Two great British authorities on aerobatics would disagree with you ....namely Alan Cassidy (Better Aerobatics)and Neil Williams (Aerobatics) and one French authority and Ex World Champion, namely Xavier de Lapparent (The four minute freestyle). All three authors state in their respective books that unloading the elevator can and will accelerate the spin further, in both upright and inverted spinning. I'm interested to know where your information comes from ? Regards, Dave

[ssairshows]

@s1spittsdriver

An inverted flat spin cannot be accelerated by manipulation of the flight controls as it is a gyroscopic maneuver not an aerodynamic maneuver. In fact, an inverted flat spin is not even a "spin" according to the definition of spins that one wing is more deeply stalled than the other causing an auto rotation.

[s1spittsdriver]

@m1ndfr34k117 In spin and out spin aileron refers to whether you are applying aileron to oppose the direction of rotation (out spin) or aileron to assist the direction of rotation (in spin)

To get the flatest spin inverted with a Lycoming engine , requires left rotation, as seen from the ground. This requires the pilot to use right rudder. Thus out spin aireron in this case, means applying right aileron !!

Sorry if this all sounds a bit boring and hard to get yopur head round - LOL !!

[m1ndfr34k117]

What do you mean when you say outspin?