"Un autre" means "another".
I found these stats on it but nothing else...talk about modified!
A Russian Yak-11 2-seat trainer (600 hp)
Made in Czechoslovakia (ergo the name)
Acquired from the Egyptian Air Force
Modified to take an R-2800 engine from a Corsair, boosted to almost 3000 hp
Gearbox from a North American Savage
Prop Hub from a Bearcat
Cut-down prop blades from a Skyraider
Spinner from a Douglas A-26 Invader
Cowl from a French Breguet 763 airliner!
Metal-skinned fuselage and enlarged fin
Canopy from a Formula One Racer