FlyingGiants Forums - View Single Post - Using blue foam for Ribs??? Help with some pics

torquen · 03-07-2006, 11:25 PM

Well what I'm wanting to do is use a foam rib in the wings instead of using ply ribs. I will be sheeting the entire wing I believe as well to get the full strength. I dont think it needs to be bagged but will be put into the jib and straped down so the bonding of the sheeting to the ribs will be there. Also I will be running full length spars and inbetween the spars will be the webbing. I think the foam will need to be about a 1/2" thick to make the ribs.

Only reason I said blue foam is I remember building some race planes using this foam because it was very dence but was still very light. You would not want to use this type of foam to make a core because its way to dence for that. Ill start looking into this stuff, and I really will look forward to everyones responces. Thanks for the help so far guys!!!
Garrett

03-07-2006, 11:25 PM	#6 (permalink)
torquen Bad-ass Super Contributer! Join Date: Jan 2006 Location: Lodi, Ca. USA Posts: 968	Re: Using blue foam for Ribs??? Help with some pics Well what I'm wanting to do is use a foam rib in the wings instead of using ply ribs. I will be sheeting the entire wing I believe as well to get the full strength. I dont think it needs to be bagged but will be put into the jib and straped down so the bonding of the sheeting to the ribs will be there. Also I will be running full length spars and inbetween the spars will be the webbing. I think the foam will need to be about a 1/2" thick to make the ribs. Only reason I said blue foam is I remember building some race planes using this foam because it was very dence but was still very light. You would not want to use this type of foam to make a core because its way to dence for that. Ill start looking into this stuff, and I really will look forward to everyones responces. Thanks for the help so far guys!!! Garrett