Andy J Posted July 31, 2021 Share Posted July 31, 2021 Building a Playboy Senior from a short kit from Belair. For those with experience of building the design do you think I have enough structure holding the pylon onto the fuselage? Have slightly modified the design of the pylon by using 1/8" ply as supplied which was covered on both sides by 1/8" balsa (grain vertical) and then 1/32" at 45 deg. Pylon sits on a 1/8" balsa plate secured to the fuselage structure by 1/4sq strip on the outer edge and 1/2x3/8 against the pylon. Plan is to glass the pylon using lightweight cloth and then cover the top section of the fuselage onto the pylon with 3/16 sheet rather than the recommended 1/8". Quote Link to comment Share on other sites More sharing options...
Andy J Posted September 19, 2021 Author Share Posted September 19, 2021 Now have the Playboy Senior 100% constructed and find the wing mount rubber bands questionable in terms of the ability to prevent the wing rocking with respect to the fuselage. Is there any improvements that anyone has done to get the wing to seat more securely to the pylon? Quote Link to comment Share on other sites More sharing options...
Dad_flyer Posted September 19, 2021 Share Posted September 19, 2021 Do you mean it rocks side to side? Or it is just not tight? Quote Link to comment Share on other sites More sharing options...
ken anderson. Posted September 19, 2021 Share Posted September 19, 2021 hello Andy, never had a PS,but seen a couple at our site,and what you describe i would say is normal...just make sure you have plenty of good quality bands on... ken anderson...ne...1...bands dept. Quote Link to comment Share on other sites More sharing options...
Andy J Posted September 20, 2021 Author Share Posted September 20, 2021 17 hours ago, Dad_flyer said: Do you mean it rocks side to side? Or it is just not tight? Yes it rocks side to side. To be honest would be even more concerned if it rocked in pitch! Will try some smaller bands Ken. Have positioned two tubes just outboard of the first ribs on the main spar to allow a metal peg to be inserted that will force the bands to go out beyond the pylon but don't think it helps much so not sure I will use them. Quote Link to comment Share on other sites More sharing options...
ken anderson. Posted September 20, 2021 Share Posted September 20, 2021 the ones i have seen fly themselves with little input from the owners......the wing movement is part of the way the model go's together and works. ken anderson...ne..1.....PS dept. Quote Link to comment Share on other sites More sharing options...
SIMON CRAGG Posted September 20, 2021 Share Posted September 20, 2021 I ditched the single dowel idea, as it was a nightmare in anything less than a very light breeze. Substituted with a dowel in each corner = rock solid!. Quote Link to comment Share on other sites More sharing options...
Andy J Posted September 21, 2021 Author Share Posted September 21, 2021 Simon when you say you inserted dowels in each corner, are these used as take off points for the rubber bands? If so how did you install them as there is little material on the corners of the pylon wing seat which can be drilled into. Quote Link to comment Share on other sites More sharing options...
Andy J Posted October 9, 2021 Author Share Posted October 9, 2021 Well can report the Playboy is a very nice flyer with a FS30 with no need for lead up front given I have extended the nose. Only down side is getting it to track straight on power application on the ground as the undercarriage is very narrow. Tried adding some side thrust today but its not the total answer to the issue. Certainly does float very well so landings have all had to be engine off. Quote Link to comment Share on other sites More sharing options...
John Wagg Posted October 9, 2021 Share Posted October 9, 2021 2 hours ago, Andy Joyce said: Well can report the Playboy is a very nice flyer with a FS30 with no need for lead up front given I have extended the nose. Only down side is getting it to track straight on power application on the ground as the undercarriage is very narrow. Tried adding some side thrust today but its not the total answer to the issue. Certainly does float very well so landings have all had to be engine off. Try some tow-in on the wheels, may or may not help? Quote Link to comment Share on other sites More sharing options...
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