Hi
I'm posting in regard of the shear web for spar. I haven't find much info on earlier post so here is a tricky question, i do think.
Some glider used rooving or uni tape. So let say the spar cap is the black box of a ridiculous 90ply uni tape.
In the option 1: the foam core (pink block) is wrapped in fiberglass (blue.)
And web are made in C shape to be bond on top of the glassed foam.
Option 2 : the web are made into a c-Channel mold (green ) and the 2 are bond with a foam core in between at same time.
So after that, the spar cap is bond on each side.
Base on those 2 option, which one is the best design ? I'd do think the option 2 is way too heavy and don't give much used...
Option 3, will it be better to just build up 2 full C-channel and bond them together with the spar cap imbedded into it ? And with foam at inside..
Option 4 : with foam at outside in between the 2 C made with spar.
And on spar cap, is it be better to be in 1 strip instead of 2 as option 3 and 4 ?.. Like some SCH glider as :
Many thanks
I'm posting in regard of the shear web for spar. I haven't find much info on earlier post so here is a tricky question, i do think.
Some glider used rooving or uni tape. So let say the spar cap is the black box of a ridiculous 90ply uni tape.
In the option 1: the foam core (pink block) is wrapped in fiberglass (blue.)
And web are made in C shape to be bond on top of the glassed foam.
Option 2 : the web are made into a c-Channel mold (green ) and the 2 are bond with a foam core in between at same time.
So after that, the spar cap is bond on each side.
Base on those 2 option, which one is the best design ? I'd do think the option 2 is way too heavy and don't give much used...
Option 3, will it be better to just build up 2 full C-channel and bond them together with the spar cap imbedded into it ? And with foam at inside..
Option 4 : with foam at outside in between the 2 C made with spar.
And on spar cap, is it be better to be in 1 strip instead of 2 as option 3 and 4 ?.. Like some SCH glider as :
Many thanks