Some pictures of our latest experiments and preparations
(July 1997):
Some good ideas started in garages .....
. . . . . . . . "Bless
this mess ..."
Our first test facility . . . 
.
. . . engine case made from steel.
. . . . our latest testing
facility. Engine made from composites . .
Some engine data:
- engine block : length 500 mm, diameter 100 mm., thickness of fuel 30
mm
- cylindrical port configuration
- a total of 3 kg solid fuel
- burns with 7,5 kg LOX (anticipated) (i.e. 2,5 : 1 non-stoechiometrical
mixture rate)
- anticipated combustion pressure 20 bar
- pressure-feed system via LOX-evaporation (i.e. no extra pressure tank
!)
- fuel is PE (polyethylene, a well-known every-day use plastic, generates
mostly CO2 and H2O when burned)
- intended burn duration ca. 60 sec. at ca. 40 kg (400 N) thrust
- new engine made fully out of composites
- no "afterburner" (post-port mixing chamber)
- uses a patented injection system (Dr. Stinnesbeck's hybrid injection
method)
- to-date (to our knowledge) no bigger hybrid engine has ever been built
in Germany
. . . . 
Our new LOX tank (12 l ) stainless steel, fuel block made from
PE, injection system not shown
. . . . . . . . 
LOX-fueling and group picture ....
Test Nr. 3 in Jan. 98, unfortunately only partially successful
many thanks to :
- Messer Griesheim, Cologne, for donating the LOX
- to Dr. Michael Reichert, DLR Porz for organizing the LOX
