no need for that baldrick...the hull will stiffen once you put in the longitudinal and cross members for laying the deck onto...........and no need to glass in the bearers for the battery cases or engine or servo mounts.......some good old dollops of polyester filler under those pieces will hold it in perfectly........
the problem with a lot of people who dabble in grp in small amounts is that they will air on the more extravagant ratio of catalyst to
resin
, the mix gets very hot when curing, and ends up distorting your hull with lumps, hollows and ripples on the outside......thus knackering the perfectly formed hull............and once that has happened, there is sod all you can do to rectify it..............just leave the hull alone.........you'll be surprised just how sturdy and solid it will become once a little timber has been applied.
neil.