This page will be a source for speed tips and tricks. We make no apologies for the sketches, as it shows the tips are right from the workshop.
H&R monoline torque unit sketch by Dick Hart, these are the details of how to make an H&R style monoline unit, please talk to Dick before proceeding to make one of these units due to the forces involved.
Fast Jet elevator hinges the bomb proof way by Dick Hart, I have had an elevator hinge break up before, I now do the hinges according to this info, not the most elegant but ultra reliable !!