Hello Hgiles,

I notice that many of the retract manufacturers sell retract sets specifically designed for some popular kits. These retract kits are already sized for the particular model and allegedly "drop in". For example, Robart sells a set of retracts for the large Topflight P-51 ARF that are specifically designed for this plane. I would personally give strong consideration to one of these pre-made sets, but others may use a particular brand that they like, even if a specific set is not necessarily available for a model. For example, some people like the idea of using Spring Air retracts because they will come down if there is an air leak or otherwise insufficient air pressure in the system. Others do not feel that the "spring down" feature is a deciding factor for them.

I have not found a set of air retracts that are specifically made for the GSP Spitfire. Assuming one does not exist, then one option is to send a set of plans with measurements to a manufacturer and have a custom set made. See Richard L's set made by Century Jet. Another option is to purchase a set of retracts and cut them to fit, e.g., Robarts with robostruts.

One note about the GSP spitfire is that the mounting beams and the wheel well are positioned so that the landing gear need to have a bend to fit. This made the installation more difficult for me. Take a look at the bottom of the wing and you will see what I mean.

Travis