Intentional spinning with litter patients is prohibited
At WWII Weekend at Mid Atlantic Air Museum about 10 years ago, a guy walked up to L-5E 44-17543 with a friend of about the same age and looked in the aft seat area. He crouched down, stood up and took his hat off, and said, "Right there, I told you, I told you! It's right there!" He was pointing to the placard for no spinning. He told the story of being medevac'ed in Korea. He said they put him in the airplane, and he looked up and saw that placard and was immediately terrified. He heard the pilot laugh and thought he was going to die on the way out of combat. His friend said he had been telling that story for 50 years and nobody believed him. It sure was a good day to own an L-5 that day.
I'm not sure why they put the placard there myself. My instructor and I tried to spin and were unable to make entry. It wound up being a stall which it nearly flew out of by itself. But here are a few details about the L-5 ambulance configuration. If you have looked at mine at shows, the restorer put a single piece of plywood in the rear behind the aft cockpit with a hinged piece so it is one long cargo compartment floor, a practical improvement. The original configuration is that there are two small plywood floors covered with stainless steel for placing litter stirrups. There is a void between these two stands. There are instructions for loading cargo on these two stands, and the heavier cargo allowance is for the forward stand. When loaded in litter configuration, a patient's center of mass will be aft of the center of these two stands, or about to the rear portion of that void. I think this makes an aft CG in the aircraft. The airplane is not good to load with an aft CG like any conventional gear airplane, and perhaps the aft CG makes spins difficult recovery.
If anybody wants to write a grant to investigate this, I'm on board.
Best- FFATC