Built from two pics taken of a derelict not five miles from home been beached for 20+years never seen it move , that was basis for finished model. 385 motor belt driving prop with plastic pulleys using Mamod steam drive spring band thingy, have had one in similer sized puffer for 15 years works well, 10 amp Mtronicks , 2.4 reciever 8 x AAA cells made up power pack, flashing light and nav lights all work . mostly made from balsa and ply , whole w/house made from card, and yes the seated man is playing with his yo-yo.