On the BVM web site, under the KingCat addendums, is outlined a problem with the booms delaminating and cracking, be it under flight ot landing stress/load, or during bumpy transport. My King Cat is nearing completion and I would like to reinforce this area prior to flight as a precaution, instead of waiting for the problem to develop to address it .. My question is, what can be done to reinforce the boom ? Some of the ribs and wood structure deep inside are balsa, some are plywood .. there is not mush access to get in and double up or reinforce any of the wood work, and i can not see how to get any rods or skin doublers in there either .. I have heard some people discuss possibly cutting the booms open to reinforce them, but I definitely do not want to go that far ... any suggestions ?? The only thought I had was to use low pressure polyurethane expansion foam, mixed with shreds of carbon fiber cloth ??? (would be very light and strong... (would run a tube through the boom for servo wires .. ) .


any and all ideas welcome !!!


Wojtek