Dear friends and neighbors,
yesterday first run of "FALCON" on the Eisweiher (Icepond) in Gernsbach/Blackforest - without any problem. Engine was running well for nearly one hour. The gear reduction between engine and paddleshaft is 3,0 : 1,0 - a suitable equivalent. As you see, I installed the Chinese Microcosm engine with bore and stroke of 12 mm - unfortunately the good Graham TVRIA will be no more produced since 3 or four years. The manufactoring of the Microcosm engine is very well, there are nearly no leakings of steam and oil, also a very well torque.
I estimate speed of the boat with full steam (3 bar) between 1,2 to 1,5 m/sec. Reversing was reliable and fast with Stephenson gear.
Thomas