MAY 2016 TM Spins Intentional & Unintended Annual Safety Issue The All New 2017 Lincoln MKZ Power. Play. With one glimpse, it is easy to see that the new Lincoln MKZ wants to be driven. The new front end establishes a strong sense of elegance, power and confidence. Efortless Performance The Privilege of Partnership When equipped with Dynamic Torque Vectoring, Lincoln EAA members are eligible for Drive Control and the available 3.0L GTDI engine, projected special pricing on Ford Motor to deliver 400 horsepower,* the 2017 Lincoln MKZ is one of Company vehicles through the most powerful and compelling Lincoln vehicles to ever Ford’s Partner Recognition take to the road. Program. To learn more about Available features include Pre-Collision Assist with this exclusive opportunity for Pedestrian Detection, Adaptive Cruise Control with stop-and- EAA members to save on a go feature, and the Revel® Audio System. This system works new Ford vehicle, please visit with SYNC® 3 to play high-resolution files using a 14-speaker www.eaa.org/ford. configuration or choose Revel Ultima® with a 20-speaker configuration to ensure that “no note goes unheard.” Lincoln MKZ. Redesigned. Responsive. Refined. *Late Availability. Tested with 93-octane fuel. 2016-May_MKZ_EAA_Divis_Ad.indd 1 3/18/16 4:17 PM OFFICIAL MAGAZINE of the INTERNATIONAL AEROBATIC CLUB OFFICIAL MAGAZINE of the INTERNATIONAL AEROBATIC CLUB Vol. 45 No.5 May 2016 A PUBLICATION OF THE INTERNATIONAL AEROBATIC CLUB OFFICIAL MAGAZINE of the INTERNATIONAL AEROBATIC CLUB CONTENTSOFFICIAL MAGAZINE of the INTERNATIONAL AEROBATIC CLUB From the Guinness World Records’ point of view, more is more; however, I was never satisfied only advancing the record by three turns, so I set out to crush it on my next attempt—and 100 is a nice, round number. FEATURES —Spencer Suderman 14 Setting the Inverted Flat-Spin Record by Spencer Suderman 20 23 Seconds by John Morrissey 26 Growing New Judges by Wes Liu 27 A-Form Chicken Scratches by Wes Liu COVER DEPARTMENTS Spencer Suderman breaking his inverted -spin record over 2 Letter From the Editor Yuma, Arizona. Reggie Paulk Photo courtesy of Spencer Suderman. 3 President’s Column Mike Heuer 4 Lines & Angles 10 Letter to the Editor 11 Sequence Committee Responds 28 Ask Allen 30 Contest Calendar 32 FlyMart & Classified Ads www.iac.org 1 OFFICIAL MAGAZINE of the INTERNATIONAL AEROBATIC CLUB EDITOR’S LOG OFFICIAL MAGAZINE of the INTERNATIONAL AEROBATIC CLUB BY REGGIE PAULK PUBLISHER: Mike Heuer The Importance of IAC MANAGER: Trish Deimer-Steineke [email protected] MAGAZINE of the INTERNATIONAL920-426-6574 AEROBATIC CLUB EDITOR: Reggie Paulk Upset Recovery Training CONTRIBUTING AUTHORS: Learning about the unexpected Mike Heuer Reggie Paulk Wes Liu Allen Siver John MorrisseyOFFICIAL MAGAZINE of the INTERNATIONALSpencer Suderman AEROBATIC CLUB May is the month we again difcult to recognize. If there is any focus on fying safety, and one lesson at all to be learned about IAC CORRESPONDENCE theme I’ve heard over and over spins, it is that pilots should receive International Aerobatic Club, P.O. Box 3086 again is that a competition spin is training from a qualifed instructor Oshkosh, WI 54903-3086 nothing like an inadvertent spin. I in both intentional and uninten- Tel: 920.426.6574 • Fax: 920.426.6579 E-mail: [email protected] can’t tell you the number of times tional spin entry and recovery pro- experienced pilots, many of whom cedures. In addition, the training ADVERTISING have been fying aerobatics for a should include both upright and Vice President of Business Development: number of years, have been taken inverted spins and spin recovery Dave Chaimson [email protected] by surprise when they enter an modes. Advertising Manager: unintentional spin. Since we’re focusing heavily Sue Anderson [email protected] on spins, it only makes sense to MAILING: Change of address, lost or damaged feature Spencer Suderman, who magazines, back issues. Since we’re recently broke his own record of EAA-IAC Membership Services an 81-turn inverted fat spin and Tel: 800.843.3612 Fax: 920.426.6761 focusing heavily achieved a 98-turn inverted fat E-mail: [email protected] spin over Yuma, Arizona. Te in- on spins, it only teresting thing about Spencer’s achievement isn’t the actual record, EAA® and SPORT AVIATION®, the EAA Logo® and Aeronautica™ are makes sense to registered trademarks and service marks of the Experimental Aircraft but the amount of research that Association, Inc. The use of these trademarks and service marks without went into the efort. I was amazed the permission of the Experimental Aircraft Association, Inc. is strictly feature Spencer to read he had made two failed prohibited. Copyright © 2015 by the International Aerobatic Club, Inc. attempts at the record toward the All rights reserved. Suderman. end of last year. But he persevered, The International Aerobatic Club, Inc. is a division of EAA and of the and continues to hold the record. NAA. Although, I’ll bet he’s not going to A STATEMENT OF POLICY The International Aerobatic Club, I recently had the pleasure of a be able to sleep too well knowing Inc. cannot assume responsibility for the accuracy of the material conversation with John Morrissey, he only needs two more turns to presented by the authors of the articles in the magazine. The pages whose “23 Seconds” article again break the 100 mark! When is that of Sport Aerobatics are offered as a clearing house of information and a forum for the exchange of opinions and ideas. The individual appears in this magazine. He was next attempt, Mr. Suderman? reader must evaluate this material for himself and use it as he sees kind enough to send me a DVD I want to take a moment to fit. Every effort is made to present materials of wide interest that will of his called Survive the Spin. In thank all of the volunteers who go be of help to the majority. Likewise we cannot guarantee nor endorse it, John gives a frank lecture on out of their way each year to help any product offered through our advertising. We invite constructive criticism and welcome any report of inferior merchandise obtained the unique aerodynamics of spins; the IAC be the thriving and vibrant through our advertising so that corrective measures can be taken. factors that can exacerbate or help organization it is today. From vol- Sport Aerobatics (USPS 953-560) is owned by the International recover from a spin and, more unteer coordinators to recorders, Aerobatic Club, Inc., and is published monthly at EAA Aviation Center, Editorial Department, P.O. Box 3086, 3000 Poberezny Rd., Oshkosh, importantly, demonstrates actual judges, and CDs, the IAC depends WI 54903-3086. Periodical Postage is paid at Oshkosh Post Office, modes encountered during typi- on the generosity of people who Oshkosh, Wisconsin 54901 and other post offices. Membership rate for cal intentional and unintentional give freely of their time out of the International Aerobatic Club, Inc., is $45.00 per 12-month period of which $18.00 is for the subscription to Sport Aerobatics. Manuscripts spin entries with in-fight videos. sheer love for our sport. Tank you submitted for publication become the property of the International Watching the in-fight videos to all of you who often go unnamed Aerobatic Club, Inc. Photographs will be returned upon request of proves that without training, many and unrecognized—you are the the author. High-resolution images are requested to assure the best unintentional spin modes are very lifeblood of the IAC. IAC quality reproduction. POSTMASTER: Send address changes to Sport Aerobatics, P.O. Box 3086, Oshkosh, WI 54903-3086. CPC 40612608 Please submit news, comments, articles or suggestions to: [email protected] 2 Sport Aerobatics May 2016 PRESIDENT’S COLUMN BY MIKE HEUER, IAC PRESIDENT, IAC 4 The Nationals—A New Location in 2017 Excitement on the horizon Since 1972 the U.S. National Aerobatic Cham- increase in trafc in 2017. Considering that one of our pionships has been held at what is now North Texas categories took seven hours to complete 26 fights last Regional Airport (KGYI). Until 1971 the airfeld year, we agreed the location was no longer acceptable. was known as Perrin Air Force Base. After closing it If delays are combined with bad weather, category became the Grayson County Airport and frst hosted fight programs would end up being canceled, and our the Nationals the following year. pilot members would not get their money’s worth. Ev- My frst Nationals was in 1968, when it was orga- eryone comes to fy, to judge, and to volunteer—not to nized and sanctioned by the Aerobatic Club of America sit around. Terefore, the decision was made to move (ACA). I was there with my family, as my father was the Nationals, and we explored several locations. fying Unlimited in our Ryan ST-A. It almost seems In the end we received bids from Muskogee, Okla- unreal today that pre-World War II antique aircraft homa; Newton, Kansas; Union City, Tennessee; and made up a great number of the airplanes then used Oshkosh, Wisconsin. Tree of these four airports in aerobatic competition, though the Pitts S-1S had have held regional competitions in recent years and just appeared on the scene. From 1968 to 1971 the are well-experienced and exposed to aerobatics. For competition was held at the Oak Grove Airport in Fort example, Newton has hosted not only a regional con- Worth, Texas. test but also in 2013 welcomed the French aerobatic Te move to the Sherman/Denison, Texas, area team, which practiced there prior to the world cham- proved to be a successful one, though the contest did pionships in Texas.