I am building a 'test' Cessna 182-RG with working retracts ..... if it's working I build a larger one (probaly rebuilding a TopFlite 182Q to an RG)
The current model is less than 40" wingspan ...
The maingear is in 'alpha' test. I made a correct working model (only to weak to land on) with the right dimensions...
Problem is still how to mimic the hydraulic's with standard RC components, and how make it tough enough to wistand harsh (=normal[]) modelairplane landings ...
The nose wheel retract is 'easy' done with standard parts ....