Updated plans and new models
At present RTP model plans are undergoing updating. The old hand drawn plans are being replaced with CAD plans, this means model plans can be enlarged for different sized motors. The first to undergo this was the Bristol M1, an excellent little flyer for the wren motor. Originally with a 310mm wingspan it is now enlarged to 372mm wingspan for the Sparrow motor and is still an excellent flyer. The new model comes with a simplified undercarriage, the plans have the additional detail for the original undercarriage.