Well it might be a Vampire etc, wooden structure to keep the wind off the pilot and fabric over the wood but maybe not what is meant by fabric covered. Turbine behind the pilot's seat.
Maybe something like a Zlin Z-37T Cmelak (Bumble-bee) agricultural aircraft, Walter turbine up front and fabric covered fuselage we have one in our museum but I am sure the fuselage frame is metal tube not wood.