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BURT Mk. II with Thrust Vector Control Static Tests 04-21-2012

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Published on Apr 22, 2012

Compilation of video from three hot fire static tests of the BURT Mk. II hybrid rocket motor on 21 April 2012 in Quincy, MA.

For this battery of tests the aft bulkhead of the Mk. II motor was replaced by a modified bulkhead which allowed for the testing of thrust vector control using jet vanes. This was done to satisfy requirements for a BU Mechanical Engineering senior capstone project.

Test #1 and #3 both experienced ignitor failure which has become a systemic problem during Mk. II hot fire tests. The steel-based epoxy used to seal the wire holes seems to be inadequate in preventing high temperature/pressure gas from escaping the system and venting to atmosphere. Redesign is necessary. Test #1 and #3 were successfully aborted after ignitor blowout though the blowout on test #3 occurred at the end of the 12 second test run.Test #2 ended in an operator-initiated abort as a result of combustion instability during start up.

Blast shielding which was installed after damage was sustained during ignitor blowout on previous hot fire tests functioned well during this round of testing. Any damage to the test stand was minor and cosmetic.

View #1: Sony HandyCam HDR-CX520
View #2: GoPro Hero 2 (WVGA Mode 120 FPS)
View #3: Flip MinoHD
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Mk.II Motor Design Specs:
75lbf thrust
500psig operating pressure
HTPB/N2O Fuel-oxidizer combination
Pyrograin ignition

Any question, comments, or helpful hints are always appreciated! Thanks for watching.
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Boston University Rocket Team 2011-2012

President: Eric Womer
VP: Kevin Zagorski
Treasurer: Alex Whittemore
Secretary: Ryan Lacy

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