Vosper Rescue -target towing launch
The structure is balsa - not my favourite wood - and ply for the exterior. Balsa does not hold temporary or permanent pins well, and holding things in position while the glue dries is made more difficult.
The balsa has been pre-cut to shape and several of the curved pieces are weak in places where the grain is inevitably across the length of the piece. I broke several parts and needed ply backing to repair. Glue used is 5 min epoxy.
The keel is made up of several pieces and to get the right shape I photocopied part of the plan and laid the parts on that to set while gluing.