Category: Propulsion System R&D

A rainy Sunday at CYPQ

Checking out if a National 490-C parachute will fit well in the front of the Citabria.

Unfortunately it positions the front pilot too close to the instrument panel.  The parachute should work ok for the rear pilot/passenger though.  Will check it out next flight opportunity.

Gave the engine a run and uncovered a problem with the fuel valve.  Better to find that one on the ground than in the air !  Further investigation and repair planned for tomorrow.

Not much happening today at CYPQ with Seneca College on strike and the poor weather.  The terminal was quiet enough to spend some time reading to learn more about hybrid rocket engine design.


Integrated Propulsion System Update – August 6, 2017

Setup for Test Hyb-C

A small hole was drilled into the combustion chamber side of the cylinder.

Wires for the spark gap igniter were inserted through the hole and into the cylinder.

Paraffin was melted and poured into the cylinder and black powder was applied to the paraffin on the combustion chamber side.

A small hole was made in the paraffin to allow flow from the combustion chamber through the paraffin to the nozzle side of the cylinder.  A nozzle was attached to the cylinder.

A nitrous oxide cylinder was inserted into the combustion chamber side and the end cap was fastened to the assembly.

Integrated Propulsion System Update – July 16, 2017

Click on the test headings for the video clips…

The purpose of the Hyb-B test series is to develop a dependable ignition system for a hybrid rocket motor.

Test Hyb-B-8 provided the best result and we’ll be moving to the next step of developing a hybrid rocket ignition system based on these results.

Test Hyb-B-4

Setup and test the spark gap igniter using 5Vand 3A.

Test Hyb-B-5

Test the spark gap igniter with magnesium at 5Vand 3A.

Test Hyb-B-6

Test the spark gap igniter with black powder type #1 at 5V and 3A.


Test Hyb-B-7

Test the spark gap igniter with black powder type #2 at 5V and 3A.

Test Hyb-B-8

Test the spark gap igniter with an increased amount of type #2 black powder than was used in test Hyb-B-7 and still applying 5V and 3A.