OCTOBER 2011 OFFICIALOFFICIAL MAGAZINEMAGAZINE ofof thethe INTERNATIONALINTERNATIONAL AEROBATICAEROBATIC CLUBCLUB AirVenture 2011 The IAC’s Perspective • Restoring a Baby Lakes • Building Bridges CONTENTS Vol. 40 No. 10 October 2011 A PUBLICATION OF THE INTERNATIONAL AEROBATIC CLUB The aerobatic spirit, passion, and community are alive and well north of the border. –Mike Tryggvason FEATURES 06 AirVenture 2011 From the IAC’s perspective by Reggie Paulk 14 Restoring a Baby Lakes by Ron Bearer Jr. 22 Building Bridges by Mike Tryggvason COLUMNS 02 / Tech Tips Vicki Cruse 05 / Gone West Jeffrey Granger 29 / Ask Allen Allen Silver DEPARTMENTS THE COVER Pilot Jeff Boerboon 01 / Letter From the Editor performing at EAA AirVenture Oshkosh 2011. 04 / News Briefs 30 / Contest Calendar Advertising Index Photo by 31 / Classifieds and FlyMart DeKevin Thornton PHOTOGRAPHY BY LARRY ERNEWEIN REGGIE PAULK COMMENTARY / EDITOR’S LOG OFFICIAL MAGAZINE of the INTERNATIONAL AEROBATIC CLUB PUBLISHER: Doug Bartlett IAC MANAGER: Trish Deimer EDITOR: Reggie Paulk SENIOR ART DIRECTOR: Phil Norton DIRECTOR OF PUBLICATIONS: Mary Jones COPY EDITOR: Colleen Walsh CONTRIBUTING AUTHORS: Ron Bearer Vicki Cruse Reggie Paulk Allen Silver Mike Tryggvason IAC CORRESPONDENCE International Aerobatic Club, P.O. Box 3086 Oshkosh, WI 54903-3086 Tel: 920.426.6574 • Fax: 920.426.6579 Heading Into Fall E-mail: [email protected] PUBLICATION ADVERTISING BY THE TIME YOU read this, Nationals will located where a lot of the main action have wrapped up, and we’ll be nearly fi n- takes place. Th is gives members a great MANAGER, DOMESTIC: Sue Anderson ished with what appears to have been a opportunity to not only rest their feet, but Tel: 920-426-6127 very successful contest season. a great vantage point during air shows or Fax: 920-426-4828 As I fi ll in and update the contest cal- when a new airplane arrives. MANAGER, EUROPEAN/ASIAN: endar for the magazine each month, I try In this issue, Ron Bearer gives his Willi Tacke to take note of how many contests we account of a total rebuild of a Baby Tel: +498841/487515 have going. Out of the three years I’ve Lakes biplane. I’ve asked him for a flight Fax: +498841/496012 been editing the magazine, this year report in a future issue, and he’s agreed E-mail: willi@fl ying-pages.com seems to be one of the busiest contest to do that for us. It’s always fun to read COORDINATOR, CLASSIFIED: years, if not the busiest contest year, I’ve about an intrepid soul who decides to Alicia Canziani seen. Even with the few cancellations we resurrect a neglected airplane, and Ron E-mail: [email protected] did experience, 2011 appears to have been does just that. MAILING: Change of address, lost or a banner year for aerobatic airplanes and damaged magazines, back issues. their pilots. EAA-IAC Membership Services Tel: 800.843.3612 Fax: 920.426.6761 What’s really impressive about this 2011 appears to have E-mail: [email protected] kind of participation is not just the amount of time and eff ort spent by been a banner year for The International Aerobatic Club is a division of the EAA. pilots, but by all of the non-fl ying sup- port that goes into each contest. From aerobatic airplanes and the contest director to the last volunteer, WWW.IAC.ORG WWW.EAA.ORG each contest represents dozens of hours their pilots. of labor to pull off successfully, and each EAA® and SPORT AVIATION®, the EAA Logo® and Aeronautica™ are registered trademarks and service marks of the Experimental Aircraft Association, Inc. The use of these trademarks and person who’s participated deserves a service marks without the permission of the Experimental Aircraft Association, Inc. is strictly prohibited. Copyright © 2011 by the International Aerobatic Club, Inc. All rights reserved. hearty pat on the back. You may remember the build story The International Aerobatic Club, Inc. is a division of EAA and of the NAA. Th is month, I decided to bring a bit of about Glen Marshman’s Rans S-9 from a A STATEMENT OF POLICY The International Aerobatic Club, Inc. cannot assume responsibility for the accuracy of the material presented by the authors of the articles in the EAA AirVenture from the perspective of while back. He promised me a fl ight report magazine. The pages of Sport Aerobatics are offered as a clearing house of information and a forum for the exchange of opinions and ideas. The individual reader must evaluate the editor on the ground. Th is was my after the competition season, and I’ve this material for himself and use it as he sees fit. Every effort is made to present materials of wide interest that will be of help to the majority. Likewise we cannot guarantee nor endorse fourth time visiting Oshkosh, and it still been bugging him for the story, so keep any product offered through our advertising. We invite constructive criticism and welcome any report of inferior merchandise obtained through our advertising so that corrective amazes me how much I haven’t yet seen at your eyes peeled for that. measures can be taken. Sport Aerobatics (USPS 953-560) is owned by the International Aerobatic Club, Inc., and is published monthly at EAA Aviation Center, Editorial Department, the show. Even people who’ve been I’d like to give a personal “thank you” P.O. Box 3086, 3000 Poberezny Rd., Oshkosh, WI 54903-3086. Periodical Postage is paid at Oshkosh Post Office, Oshkosh, Wisconsin 54901 and other post offices. Membership rate for attending for many years still see things to those of you who take the time to sit the International Aerobatic Club, Inc., is $45.00 per 12-month period of which $18.00 is for the subscription to Sport Aerobatics. Manuscripts submitted for publication become the they’ve never seen anywhere else. down and share your experiences for our property of the International Aerobatic Club, Inc. Photographs will be returned upon request of the author. High-resolution images are requested to assure the best quality reproduction. Th e IAC’s presence at Oshkosh is membership. Without that eff ort, this POSTMASTER: Send address changes to Sport Aerobatics, P.O. Box 3086, Oshkosh, WI 54903-3086. PM 40063731 Return undeliverable Canadian addresses to Pitney Bowes IMS, incredible. We have a very nice facility magazine would not be what it is. IAC Station A, P.O. Box 54, Windsor, ON N9A 6J5. Please send articles or comments to: [email protected] www.iac.org 1 TechnicalAdvisor BY VICKI CRUSE EDITOR’S NOTE: Before her untimely passing, Vicki Cruse told me to reprint her tech tips if I saw fi t. This was one that warranted a re-print, and replaces Doug Bartlett’s President’s Page for the month of October. The three bolts found loose on the front plates on the forward face of the upper spar. PITTS S-2S CABANE SQUEAK before further flight. This AD permits the instal- From a Pitts S-2S owner: As I was preflighting my lation of an improved-design propeller hub (suf- Pitts S-2S, I would grab the forward cabanes and fix SN “A” or “B”) as a terminating action to the attempt to move them. On doing this, I heard a ECI. This AD results from a report of a propeller squeak which got progressively worse over time. blade separating from a propeller hub. I took off the covers on numerous occasions and This AD requires, within 50 operating hours’ noticed nothing unusual. One day I took the cov- time-in-service (TIS), an initial ECI of the front ers off, determined to find the problem. I found cylinder half of non-suffix SN propeller hubs plates bolted to the front spar at the intersection for cracks. This AD also requires, within every between the cabanes and the top wing. The bolts 100 operating hours’ TIS or annual inspection, holding these plates on had worked loose and whichever occurs first, repetitive ECIs of the were the cause of the squeak. I tightened them front cylinder half of non-suffix SN propeller and the squeak went away. hubs for cracks and removing cracked hubs from service before further flight. Possible HARTZELL PROPELLERS AND aerobatic aircraft affected by this AD include AIRWORTHINESS DIRECTIVE Great Lakes, Mudry CAP 10, Pitts S-1S, and Effective September 25, 2006, the FAA adopt- the Super Decathlon; however, with the experi- ed airworthiness directive (AD) 2006-18-15. mental nature of many aerobatic airplanes, This AD affects Hartzell propellers installed on checking the serial number of the propeller Lycoming O-, IO-, LO-, and AEIO-360 series on a 360-powered aircraft would be a good reciprocating engines. This AD requires initial idea. Information on this AD may be found and repetitive eddy current inspections (ECI) of through the International Aerobatic Club (IAC) the front cylinder half of the propeller hub for website (www.IAC.org) under the News head- cracks and removing cracked hubs from service ing to Safety Alerts. Here you may access the 2 Sport Aerobatics October 2011 FAA database and search by the AD mation may be found in the actual AD and CAP 10B number above. Additional information is a bit complicated to list here. ADDITIONAL INFORMATION may be found at www.HartzellProp.com This is the final ruling on the AD pro- After publication of the latest informa- or through the link on the Safety Alerts posed back in May. Some engine models tion on the CAP 10B wing spar, Adam page of the IAC website. have been removed from the initial list, and and Marianne Shaw from France began the FAA provides responses to the com- an informational campaign to let people FINAL RULING ON ments it received in the initial proposed AD know more about service bulletin num- LYCOMING CRANKSHAFT AD in May, some of which provide interesting ber 060307, dated October 6, 2006, Effective November 3, 2006, the FAA is reading.