"I am very pleased to say that the Airopult device is a very handy piece of equipment for RC flyers. It holds an airplane, including quarter scale, solidly while the engine is running at highest rpms and releases it with a foot press on the release plate while the operator is standing behind the plane.
I have used it extensively both on the workbench and at the field. I do a lot of my flying alone and it really facilitates this.
It is of high quality construction and materials.
I very much recommend that you get one."