RE: Cermark F16 w/ air retracts?
I think you guys misread my thread about the gear. The retracts look and feel lightweight like the Spring Air, but it's NOT spring down. You need air both directions. The air valve is just like Robart type. The whole set up is lighter than typical Robart but function like Robart gear.
Hummingbird111, can you measure the span on your plane since you have Thunderbird scheme to see if it's 50" also??