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Model Forum / Radio Controlled / Air Models / August 2004CAP 232 3D question
Just bought one of these off Ebay and need to know where the C of G should be? TIA cheers, Len Where the plane performs the best. How the heck can we give you an answer with only part of the information? What kit is it? What size? Etc. GENERALLY, most planes work best with the CG somewhere between 25-35% back from the leading edge (or MAC) -- Paul McIntosh http://www.rc-bearings.com > Just bought one of these off Ebay and need to know where the C of G > should be? [quoted text clipped - 3 lines] > cheers, > Len >Where the plane performs the best. > [quoted text clipped - 3 lines] >GENERALLY, most planes work best with the CG somewhere between 25-35% back >from the leading edge (or MAC) As Paul said in an earlier post , we would really need some more information , but , you can figure it yourself. The Cap 232 CG should be 25-30% of MAC. 35% is a bit much for the Cap. You can figure the wing area and then take 25-30% of that, or , if you would like I can send you a little sketch to show how to locate the MAC (Mean aerodynamic chord) and you simply measure back 25-30%. I would recommend about 25% to start. Ken Day yeah, the guy buys an unnamed cap off ebay and he is supposed to understand things like MAC? Why not? Better he learn it now if he is going to buy used planes with no documentation. It is a very simple concept and there are dozens of web sites that explain it. Like here: http://airfieldmodels.com/information_source/math_and_science_of_model_aircr aft/formulas/mean_aerodynamic_chord.htm Or here: http://www.usrcjc.org/howto/MAC.htm -- Paul McIntosh http://www.rc-bearings.com > yeah, the guy buys an unnamed cap off ebay and he is supposed to understand > things like MAC? >yeah, the guy buys an unnamed cap off ebay and he is supposed to understand >things like MAC? The main reason I'm reluctant to post on here. Try to help someone and a smart a** like you shows up to criticize. First of all , buying a plane from EBay doesn't make you a newbie or ignorant of aircraft terminolgy , and, even if the man doesn't know what 'MAC' is , I offered to send him a sketch (very simple)...and then he WILL know what it is and how to find it on any wing in the future. Apparently you haven't been around this group very long, or.... have lost sight of what this group is about.....helping and encouraging one another, and just good ole "BS'ing at times.. If you need to know how to locate the MAC , I'll gladly send you a sketch also, Ken Day >>yeah, the guy buys an unnamed cap off ebay and he is supposed to understand >>things like MAC? [quoted text clipped - 14 lines] > >Ken Day Wow a positive response at last!! I've been flying RC planes for quite a while and this one is for my son. I was hoping that some kind soul had the same plane and could give me a rough estimate of where the CofG would be. i.e. 2 or 3 inches from the leading edge. OK so we bought it off Ebay - he 'totalled' his beloved Flair P51 - so this is a stop gap until he gets some more cash. At least it keeps him flying! cheers, Len >>yeah, the guy buys an unnamed cap off ebay and he is supposed to understand >>things like MAC? [quoted text clipped - 14 lines] > >Ken Day Sorry forgot to ask, can you send me the sketch? len.cuff@ntlworld.com many thnaks. cheers, Len >>Ken Day >Sorry forgot to ask, can you send me the sketch? [quoted text clipped - 3 lines] >cheers, > Len Sorry to take so long to get back to you. I'll gladly send you a sketch. Ken Day >Just bought one of these off Ebay and need to know where the C of G >should be? [quoted text clipped - 3 lines] >cheers, > Len Sorry! It's a FLAIR CAP 232 3D 43 inch wingspan cheers, Len >Just bought one of these off Ebay and need to know where the C of G >should be? [quoted text clipped - 3 lines] >cheers, > Len Sorry I upset some folks! I thought that NG's were there to help people?? Maybe I should stop asking for help? cheers, Len Len, Don't let the Todd Klondykes of this newsgroup get to you. There is plenty of quality help available. -- Paul McIntosh http://www.rc-bearings.com > >Just bought one of these off Ebay and need to know where the C of G > >should be? [quoted text clipped - 9 lines] > cheers, > Len Len Cuff <thecuffs@ntlworld.com> posted message ID<25fdg0dd9urbes3neej7r6uqdgfporus38@4ax.com>on Tue, 27 Jul 2004 21:36:58 GMT >>Just bought one of these off Ebay and need to know where the C of G >>should be? [quoted text clipped - 6 lines] >people?? >Maybe I should stop asking for help? Naw...keep asking. You just have to sort through a lot of crap to find anything worth keeping. "Usenet is like a herd of performing elephants with diarrhea - massive, difficult to redirect, awe-inspiring, entertaining, and a source of mind-boggling amounts of excrement when you least expect it."Gene Spafford  Signature"you use diversion and name calling."Paul McIntosh "twat!"Paul McIntosh "Gee, just like Shrub?"Paul McIntosh "You have your head so up a hole that you can't see the world in front of you."Paul McIntosh "...blind following of a group of crazy people."Paul McIntosh "No, YOU are a waste of time."Paul McIntosh "YOU linked to it you dipshit!"Paul McIntosh "It was the link to the ACTUAL report, dipshit."Paul McIntosh "You are a dope."Paul McIntosh "For the dense among you"Paul McIntosh "What the F**k is he saying"Paul McIntosh >Len Cuff <thecuffs@ntlworld.com> posted message >ID<25fdg0dd9urbes3neej7r6uqdgfporus38@4ax.com>on Tue, 27 Jul 2004 [quoted text clipped - 18 lines] >source of mind-boggling amounts of excrement when you least expect >it."Gene Spafford Todd, I've asked a lot of 'stupid questions' before and generally got some good rseponse. Maybe 'the world ' is in a bad mood?? cheers, Len Hi, I have a Flair Cap 232 3D. It's made by China Model Production and its CG shoul be between 75 an 85 mm from the leading eadge. That is what is written on the manual. B -- felix7 >Hi, I have a Flair Cap 232 3D. > >It's made by China Model Production and its CG shoul be between 75 and >85 mm from the leading eadge. That is what is written on the manual. By Many many thanks for that! cheers, Len |
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