Clouddancer
Well Known Member
We bought a original, older type engine cowl with our RV-4 project. This cowl seems to be fabricated with polyester resin and has a white gel coat. It has no honeycomb core as the newer cowls.
We are currently in the process of fitting the cowl... and it is rather floppy , needs quite some trimming and glass work.
Aligning upper cowl with a laser.
What have builders, that have this older type cowl, used as a resin? Did you stay with polyester or did you use an epoxy system? I'm interested as well in the surface prep before painting: any specialities (products and techniques) that you used for the gel coat?
I have read as well, that some of those cowls show some deformation in flight: http://www.vansairforce.com/community/showthread.php?t=127490&highlight=polyester
Have some of you used some way to stiffen the cowl? Any experience on your modification?
We are currently in the process of fitting the cowl... and it is rather floppy , needs quite some trimming and glass work.
Aligning upper cowl with a laser.
What have builders, that have this older type cowl, used as a resin? Did you stay with polyester or did you use an epoxy system? I'm interested as well in the surface prep before painting: any specialities (products and techniques) that you used for the gel coat?
I have read as well, that some of those cowls show some deformation in flight: http://www.vansairforce.com/community/showthread.php?t=127490&highlight=polyester
Have some of you used some way to stiffen the cowl? Any experience on your modification?
Last edited: