Dag Lundesgaard
Hydrogen Peroxide Motor (NEAR H-1):
Dag Lundesgaard holding his "cute" little hydrogen peroxide motor in his
hand.
Close-up on the Dag Hydrogen Peroxide (NEAR H-1) motor.
Motor case with forward closure removed.
Dag's Experiments and Interests:
Dag has a great interests in mono-propellant based rocket motors. He has
on his own constructed, built and tested several small mono-catalyst motors.
He has also tested out many possible propellant combinations, some of them
have been tested in small and simple motors during static testing. But
it is hydrogen peroxide (H2O2) reacting with solid potassium permanganate
(KMnO4) that he has experienced most with. Beside constructing small rocket
motors he has built a apparatus which he can decrease the 50% water concentration
of the commercial H2O2 down to about 5-10%. This will increase the specific
impulse on the motor to be about 120-140 s.
NEAR H-1 motor:
The H-1 motor sown at the three pictures above have been tested several
times with great success. Some tests have demonstrated up to 10-15 seconds
burn time without problems. The gas and smoke generated from this small
motor, was observed during a static test this summer to be almost 2 meter
long! The H-1 motors has internally been through some modifications. To
be revealed later. The motor case, nozzle, injector and forward closure
are all made of ordinary aluminum, 6060-T6. The potassium permangante is
trapped , packed and wrapped inside a small steel net which is secured
inside the combustion chamber. The injector consist of a small pipe with
small holes drilled out along its length. The injector is placed in the
center (in the middle of the propellant) of the combustion chamber. The
H2O2 is forced into the combustion chamber by means of a high pressuring
gas system.
Close-up on the Dag Hydrogen Peroxide (NEAR H-1) motor.
Motor case with forward closure removed.