If you increase the angle of incidence, the consequences are: more aft pitch trim; you will see the elevator deflected upwards..more turns of trim change required between cruise and landingmore trim drag.higher loading of the horizontal stab which MAY cause a stabilizer stall on a slow approach with forward CG conditions. Had it out a few times this summer and this thing flies miserable, nothing like Cubs I've had in the past. Starting with the PA-11, as well as some L-4s, fuel was carried in wing tanks, allowing the pilot to fly solo from the front seat.[29]. [24], Modernized and up-engined versions are produced by Cub Crafters of Washington and by American Legend Aircraft in Texas, as the Cub continues to be sought after by bush pilots for its short takeoff and landing (STOL) capabilities, as well as by recreational pilots for its nostalgia appeal. After the war, many L-4s were sold as surplus, but a considerable number were retained in service. 0000001187 00000 n And yes, I'm pretty sure I fully understood what you meant from what you said. The real Super Cub has about 2.5 degrees of washout, but this seems excessive for a low power, slower flying plane. I am building a Wag Aero 2+2 . The chord line of a flat bottomed wing is positive with regard to the bottom surface so a zero incidence of the bottom surface would give positive incidence but without knowing the wing section it's impossible to say how much - but it's likely to be around 2 degrees at a guess so with some latitude for the guesswork and your measurements it might still be set correctly. I once knew of a cessna 172 a friend of mine bought in Alaska, then ferried it down to SLC. The Cub design is nearly perfect for R/C flying - making a beautiful sca If I could I would. An AOI in-flight changer would be nice (ala F-8 Crusader) , but of course very complicated. :o. I have heard tale of a famous AK aviator who's angle of incidence had been changed evidently with good results. 0000006047 00000 n The PA-18 they slope down 1 1/2" to the tail post. Come on people lets pull out heads out of the sand. I can't remember the last time I flew a plane with the CG that far forward. Sorry Diggler. Good Lord, a tail heavy Cub, can't think of much worse. Are there any opinions as to how it relates to performance? I debated changing this On April 29, 1941, all 48 Flitfire aircraft, one for each of the 48 states that made up the country at that time, flew into La Guardia Field for a dedication and fundraising event which included Royal Navy officers from the battleship HMS Malaya, in New York for repairs, as honored guests. I have two BUSA 1/4 scale cubs. It had accommodations for a single passenger in addition to the pilot. An electrical system is standard from both manufacturers. 0000005538 00000 n In 1940, the year before the United States entered the war, 3,016 Cubs had been built. Recheck the angle of incidence of the wings. On the PA-12/14 the upper longerons slope up 3/4" from the last cluster to the tail post. 0000001469 00000 n $95.00/hr . If you choose not to change your thinking everyone else will cruise right by you. The Super Cub had a 150hp (110kW) engine which increased its top speed to 130mph (210km/h). Due to its performance, it was well suited for a variety of military uses such as reconnaissance, liaison and ground control. I am building a Wag Aero 2+2 . {$1;iBAdYHATKpm"\^L\.MDj`ei|Olksr)tThS( 9eS;Nuc'.Mf. 0000004557 00000 n 2. On a rebuild project, the first important task is to make sure the fuselage is RIGHT. If I have a smart level, but I'm not sure what to referance off on the fuselage. View Full Version : Wing angle of incidence. Are there any opinions as to how it relates to performance? The aircraft has a simple, lightweight design which gives it good low speed handling properties and short field performance. That is exactly why the "good" rebuilders jig their fuselages whether they are actually replacing tubes or not. Trimming and rigging, I discovered that there was no angle of incidence at allthe wing root was absolutely level with the fuse leveled by the plumb bob method..this SHOULD have produced a trim offset in the opposite direction.(?????!!!) It was a nightmare, no amount of trim could make it fly straight. Many Cubs are still flying today. J3 Airplane forum for J3 Cub Enthusiasts. PIPER-J3.SIM SIM file for the Piper J-3 Cub PIPER-J3 AAF picture file REF-J3.SIM Reference SIM so you can change settings PIPER-J3.TXT This file The source of inspiration and information was "The Piper Cub Story" by James M. Triggs, Modern Aircraft Series (Sports Car Press) 1963. Statistics for the 1946 Piper J-3 Cub were as follows: [11] During the Allied invasion of France in June 1944, the L-4's slow cruising speed and low-level maneuverability made it an ideal observation platform for spotting hidden German armor waiting in ambush in the hedgerowed bocage country south of the invasion beaches. 0000244262 00000 n variously designated as the O-59 (1941), L-4 (after April 1942) and NE (U.S. Navy). I went with the jackscrew and yoke. It's a reference to the bottom cord of the wing rib. I prefer the no dihedral wing myself. Maybe his fuselage was tweaked around and one side would up with more or less angle of incidence than the other side? This is something you would only do on an experimental. stream <> I test flew a strange cub for a friend that had a symmetrical airfoil wing. 0000329575 00000 n %PDF-1.4 % }. {5Uhz#;7Q_)g+|FtQ8 Wvt#,{rX-')JsqWy buz"Gk#Dre9X,ug%L 6FuViBZ(eZ-&E'&kn= tgL?i$TN,`b]9vI JwI32*X3"V3|3X<9Z|^~]nSz3{xq;n[j^[ y]-}SzinHg^)w. check out the. Crash, elevator up and down, or horizontal stab up and down??? In all, Piper produced 2,650 Super Cubs. [19] Some 5,413 L-4s were produced for U.S. forces, including 250 built for the U.S. Navy under contract as the NE-1 and NE-2.[20][21]. You might just spoil an otherwise really good airplane. For for the earlier Taylor design, see, Certified/factory-built aircraft manufactured in Canada, Piper J-3 Cub Film Series (TM Technologies, footage from 19371948 shows step-by-step construction. It might not be so good on takeoff, but vertical landings might be fun. I didn't think the trim tab( on the 2+2) was a very good idea either. I have read that one of the differances between the cub and PA 14 is the angle. 0000002984 00000 n Fun! I forgot another change that increased angle of incidence would produce: increased pitch stability :D .seriously, though, why not turn some turnbuckles and simply rig the ailerons and flaps down somewhat to enhance the low speed end of the range.some of you guys who seriously competed in the short field contests probably have a lot to contribute to this thread.but watch for an increase in tip-stall characteristics with too much down deflection in ailerons. The completed wing assembly will be a single piece bolt-on type wing but you need to plan to store and transport that 81 fragile wing somehow. The main gear on the Cub Special Trainer consists of individually sprung wheels on which are mounted low-pressure tires. The Piper J-3 Cub is an American light aircraft that was built between 1938 and 1947 by Piper Aircraft. [11], The need for new pilots created an insatiable appetite for the Cub. I believe mine is a little over 5 inches. If the fuselage was tacked or finish welded when you got it, it was probably done in a jig. Built an Ikon West 1/4 scale Super Cub last winter. 0000002500 00000 n About 75% of all new pilots in the CPTP (from a total of 435,165 graduates) were trained in Cubs. https://www.supercub.org/forum/showtupercub+angles, https://www.supercub.org/forum/showtWing-Incidence, https://www.faa.gov/aircraft/safety/7_08_Alert.pdf, https://www.flyingmag.com/pilots-plaing-incidence/, Adventures, Stories, Journeys and Musings, CubCrafters: CC18, CC11, CC19 Top Cub, Carbon Cub, and X-Cub, Everything Else (formerly:My Other Plane Is A.), If this is your first visit, be sure to This new Cub seems very tip stally and the tail doesnt pop up when you give it throttle like other Cubs I've had. Crash, Stab. It is most often powered by an air-cooled, flat-4 piston engine driving a fixed-pitch propeller. The angle of incidence on the J-5 and the PA-12 are the same (Same Basic Fuselage) and is different from the J-3 and PA-18. Piper J3 Cub und PA18 Building Instructions. There is a STC that should be out for the -18 within the next year that will probably not change your thinking, but the facts will be presented that (Piper was not always right). I would in fact recommend you take the utmost care to insure that the mount points for all the surfaces are right where they are supposed to be according to the drawings. Degree and 15 minutes up. 5 degrees and 30 minutes down chrome yellow paint came to done! To referance off on the Cub Special Trainer consists of individually sprung on!, 3,016 Cubs had been repaired success, achieving legendary status does something! 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