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DaveSwartz Certificates/Ratings/Crew Stations: 1. "RE: Vacuum-Cleaner-Sucky Spins!" 05-21-03, 04:29z  Tom It is best to not accelerate the spin. There are no bonus points for speed of rotation and it is easier to accurately stop the spin if it has not been accelerated. Keep the stick fully back until after your anti-spin rudder input has canceled the yaw sufficiently that you can safely stop on heading by bringing the stick forward to break the stall. Remember that a spin requires two components: 1) Yaw and 2) Critical angle of attack. Once you cancel the yaw, you can safely stop on heading with forward stick. If you bring the stick forward too early (while yaw still exists) you could perform a cross-over spin. Conversely, if you bring the stick forward too late (with "anti" spin rudder still in producing opposite yaw), you may perform a cross-over spin in the same direction you were going in the first place. A one turn spin is a higher K figure than the "larger" spins because the nose of the aircraft will be quite positive after the spin stops and you will need to have additional skill to quickly get it down to the vertical. Typical altitude loss for a Pitts is 1000-1200 feet depending on how much energy you want for the next maneuver. Like most maneuvers, knowing where to look at each segment of the spin makes a big difference in the outcome. You should be looking straight over the nose for most of the push to vertical, looking at your aerobatic sight only during the last few degrees to accurately set your downline. With experience, you will learn what speed on the downline you should have before starting the pull-out. In an S2B with an MT prop, I plan on pulling about 30MPH before the speed I'd like to see after the spin. Different configurations will require different speeds. Fly high (5000+) when you are working on spins. We lost 4 Pitts pilots last month in two separate S2B accidents. The accident reports both "suggest" spins were involved but early reports are not reliable. One of the Pitts was on a training flight with student and instructor. Dave Swartz Fort Lauderdale, Florida http://www.FlightFantastic.US Remove | Alert Edit | Reply | Reply With Quote | Top

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Subject      Author      Message Date     ID      Vacuum-Cleaner-Sucky Spins!    TomParsons       05-20-03              RE: Vacuum-Cleaner-Sucky Spins!    DaveSwartz       05-21-03       1            RE: Vacuum-Cleaner-Sucky Spins!    TomParsons       05-21-03       3         RE: Vacuum-Cleaner-Sucky Spins!    djpacro       05-21-03       2         RE: Vacuum-Cleaner-Sucky Spins!    Patty_Wagstaff       05-27-03       4            RE: Vacuum-Cleaner-Sucky Spins!    TomParsons       05-27-03       5

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