Paul Williams Posted March 31, 2016 Share Posted March 31, 2016 Hi can anybody help please, some time ago I downloaded a small program which when you entered your planes measurements worked out the c of g point for you. I cant find it does anybody know where it is ? thanks Quote Link to comment Share on other sites More sharing options...
Mark Kettle 1 Posted March 31, 2016 Share Posted March 31, 2016 Here's a link Paul. **LINK** Aircraft Centre of Gravity Calculator Quote Link to comment Share on other sites More sharing options...
Paul Williams Posted March 31, 2016 Author Share Posted March 31, 2016 wow that was quick thank you top class service !! Quote Link to comment Share on other sites More sharing options...
graeme jones Posted March 31, 2016 Share Posted March 31, 2016 Paul - I've always used a method from the Aeromodeller Plans Handbook in the dim and distant - (wing chord / 7), + ((3 X tailplane area X moment arm) / (8 X wing area)) if wing and tail are tapered, chord is at half span, moment arm is from 1/4 chord of wing to 1/4 chord of tail. This gives a safe CG from the LE of the wing, at the mid point if tapered. In practice it puts the CG at around 30 to 35% of the wing chord. Graeme Quote Link to comment Share on other sites More sharing options...
bouncebounce crunch Posted March 31, 2016 Share Posted March 31, 2016 NASA website (yes the space agency) have really good information regarding CG and finding of. Type in a search and you will be very surprised at the aeronautical information including models. the onboard all direction 360 view camera equipment is very interesting too. Quote Link to comment Share on other sites More sharing options...
Don Fry Posted March 31, 2016 Share Posted March 31, 2016 BBC, back it the 60s, there was always a tale about, that NASA was a bunch of aero modellers, who needed access to big computers, and putting someone on the moon was the necessary byproduct. Quote Link to comment Share on other sites More sharing options...
bouncebounce crunch Posted March 31, 2016 Share Posted March 31, 2016 Look at those computers now Donald, I Reckon many men that designed or flew any airborne machine (does a balloon count?) must have been an aeromodeller as a boy. Leonardi da vinci, Imagine him getting an hour of life to see where flight is now and the changes since his ideas were sketched. Quote Link to comment Share on other sites More sharing options...
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