G'day

The little PAW is a great engine BUT you do need to spend a while learning about it on the ground before you try to fly with it. I have a PAW 1.5 RC diesel in a small trainer that I built for fun. It too has no ailerons and flies well.

The PAW will need running in. It has a cast iron (actually scintered cast iron called mehanite) piston running in a steel liner. When they are new they don't fit all that well and they need about an hour of running in short runs set quite rich initially and gradually leaned out over the hour and the compression gradually increased.

It probably has a ring muffler which unfortunately makes initial starting difficult. I removed the muffler on mine. They don't make much noise anyway.. The trick is "exhaust priming".

Initially I would mount the engine in a test stand. A piece of wood about 3/4 inch thick with a notch cut in it is fine. Initially I don't connect the fuel tank with new diesels. I just exhaust prime and flick. To exhaust prime you turn the engine over anticluckwise with the prop until it comes up on to compression then wet the side of the piston with some fuel. This is enough to get the engine to fire with a firm flick. Gradually increase compression until the engine will fire with a prime. Once it is firing and running for a short period, then connect the tank and prime again and this time it should be ready to start.

Anyway, have fun. And if you need help, feel free to PM me. I have already helped one person to learn to fly by email.

All the best

Mike in OZ