Steam rocket test

Mr.B · Post by **Mr.B** » Wed Oct 17, 2007 11:53 pm

!st. ride on the 3-chamber steamer.

PyroJoe · Post by **PyroJoe** » Thu Oct 18, 2007 5:49 pm

Good job. How much does she weigh?

Johansson · Post by **Johansson** » Fri Oct 19, 2007 1:54 pm

Nice ride, how high was the pressure in the tanks?

Mr.B · Post by **Mr.B** » Sat Oct 20, 2007 3:50 pm

She ways about 70 kg empty.Every tank(3) can be opend seperately
each tank is filled about 1/3 so about 100kg ready to go without driver (another 85 kg)
Thrust starts at about 16 bar. I was running at an estimated 20 bar
The steam/water exhaust was lukewarm, which means that the nozzle did a good job in transfering the energy. The first blast was more than expected, it really pushed me in the seat . She will be rebuild (the frame/wheels) for higher speeds....

marksteamnz · Post by **marksteamnz** » Sat Oct 20, 2007 9:16 pm

Looks like a lot of fun.
I'm curious about the plumbing after the valves. If the valves on each tank are smaller bore than the piping chamber and nozzle after them then even when fully open the chamber isn't doing anything. Have you considered an individual expansion cone after each valve thus reducing the flow drag thru the piping, chamber etc?
Are you going to fit some baffles round the tanks so the heating is more even and efficient?
Cheers
Mark Stacey

Post by **Mike Everman** » Sun Oct 21, 2007 3:58 am

Beautiful, Mr. B!
What fun is that? I want to have a vehicle by the end of the year. Enough screwing around. That's very inspirational, thanks for the vid.