SpainCub
Registered User
Hi all, wanted to use this tread as a place holder for my CarbonLight(tm) wing build... the name is just for fun
So far calculations for the parts I have been designing as are follows:
Calculated wight for Front+Rear Spar = ~5.8Kg or ~13 LBS (Design limit is 10Gs) I still have to build this completely, I think it will come out closer to 7kg or ~15lbs.
Calculated wight for Full Size Ribs = ~62g ~2.2oz (Design limit is 10Gs)
Calculated weight for ailerons = ~420g or ~.9lbs
So, 15+(16*2.2)+.9 comes out to roughly 18.2 lbs, add the rest of the HW... some where close to 6.4lbs and you get a 24.6lbs, add some fabric and and 12 lbs gas tanks and you are in the 48 lbs fully finished wing.
The airfoil is of my own design, I am still tweaking the LE to get to to fly just a bit faster, but with a L/D of 90, it should be close to flying a Cub with ABW at 120 mph cruise
CL_Max without flaps is at 1.75 @ AoA at 16º and Re of 800K (17mph). Flaps at 38º gives me a Cl_Max of 2.97 @ AoA 12º and same Re 800K, will it fly at that speed, no, but it sure can get close to that!!! :roll::roll::roll:
Here is an insight in how it will look!
Next follow-up will be the Spars at their weight in. I am still waiting for lot's of bits to come in to get the full sets built and analysed.
Might get a picture of the Test Ribs in place, I am building both a USA 35B Mod and my own airfoil. Just ran out of CF so will order that, if that shipment comes first I will port a picture of the stress test of the rib, that is hanging 80kg on the rib... I weight in at 90kg!!! all that on 2.2oz of material, should be cool to get it right the first time
Ok, got to go eat!
So far calculations for the parts I have been designing as are follows:
Calculated wight for Front+Rear Spar = ~5.8Kg or ~13 LBS (Design limit is 10Gs) I still have to build this completely, I think it will come out closer to 7kg or ~15lbs.
Calculated wight for Full Size Ribs = ~62g ~2.2oz (Design limit is 10Gs)
Calculated weight for ailerons = ~420g or ~.9lbs
So, 15+(16*2.2)+.9 comes out to roughly 18.2 lbs, add the rest of the HW... some where close to 6.4lbs and you get a 24.6lbs, add some fabric and and 12 lbs gas tanks and you are in the 48 lbs fully finished wing.
The airfoil is of my own design, I am still tweaking the LE to get to to fly just a bit faster, but with a L/D of 90, it should be close to flying a Cub with ABW at 120 mph cruise
CL_Max without flaps is at 1.75 @ AoA at 16º and Re of 800K (17mph). Flaps at 38º gives me a Cl_Max of 2.97 @ AoA 12º and same Re 800K, will it fly at that speed, no, but it sure can get close to that!!! :roll::roll::roll:
Here is an insight in how it will look!
Next follow-up will be the Spars at their weight in. I am still waiting for lot's of bits to come in to get the full sets built and analysed.
Might get a picture of the Test Ribs in place, I am building both a USA 35B Mod and my own airfoil. Just ran out of CF so will order that, if that shipment comes first I will port a picture of the stress test of the rib, that is hanging 80kg on the rib... I weight in at 90kg!!! all that on 2.2oz of material, should be cool to get it right the first time
Ok, got to go eat!