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drgilo1973
2014-04-18, 11:56 AM
hello have a new plan to build a concorde i draw it at rccad and then i cut the squelett at umake.ca he has a laser cutter and a cnc machine , the total weight of the plane will be estimated at 1900 g the wing spam is 70cm wing area close to 1750cm2 the long is 1.5m powered by two nito engines .15 here some pictures of the build

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Kevin Rochon
2014-04-18, 01:47 PM
You can count on Gilbert to be up for challenges. Good luck Gilbert it's going to be a hot one:cool:

xtopher
2014-04-19, 01:22 AM
Hi Gilbert. Can you please tell me how are you going to calculate the CG on that kind of wing- I have a phase 3 squall project left aside till I get precision on that...is it 25 - 33% of whole body?

Burning Head
2014-04-19, 08:25 AM
Nice project Gilbert:cool: With the CG calculator in the tool section...

drgilo1973
2014-04-19, 08:57 AM
thnks for your encouragement the cg on this type of wing is calculated from our site ( tools-cg calculator ) the lenght of the wing is 68.5 cm the cg will be on 28.3 cm from the leading edge of the wing

drgilo1973
2014-04-19, 09:43 AM
i forgot to mention that i install the gaz tank on the cg so when i fill it or i empty it the cg position doesnt change , and the same gaz tank will feed both engine

Andrew Fernie
2014-04-19, 03:04 PM
Gilbert, how will you keep pressure in the fuel tank to feed the two engines? Maybe from both mufflers through check valves in case one dies? Someone must have figured out the best way at some point, but I can't be sure which way it would be.

Ricardo
2014-04-19, 09:40 PM
Gilbert, I agree with Andrew. You will need check valves, otherwise if one dies the pressure leaks via the muffler of the dead engine...

drgilo1973
2014-04-19, 10:20 PM
Ok men thanks for this notification