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Thrust ring or bulkhead
#9
There are two ways to do that. Either the motor pushes against a forward thrust ring at the top of the motor mount tube, or else there is a thrust ring on the end of the motor that pushes against the aft end of the motor mount tube. Black powder motors, like Estes and Quest, use the former; composite motors like Aerotech and Cesaroni use the latter. Either way, there needs to be some form of motor retention so that it does not rip forward through the rocket during thrust, and is not ejected out of the aft end when the ejection charge fires.

Centering rings hold the motor mount tube inside the airframe.
John S.
NAR #96911
TRA #15253
MDRA
Level 1, 2014-Mar-15 -- Aerotech Sumo, H133BS
Level 2, 2014-Jun-21 -- Giant Leap Vertical Assault, J240RL
Level 3, 2016-03-12 -- MAC Performance Radial Flyer, M1101WH, 13,028 feet
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Messages In This Thread
Thrust ring or bulkhead - by Liquid rocman - 02-17-2016, 10:24 AM
RE: Thrust ring or bulkhead - by Bat-mite - 02-17-2016, 10:41 AM
RE: Thrust ring or bulkhead - by Liquid rocman - 02-18-2016, 05:15 AM
RE: Thrust ring or bulkhead - by Bat-mite - 02-18-2016, 05:27 PM
RE: Thrust ring or bulkhead - by Liquid rocman - 02-19-2016, 06:52 AM
RE: Thrust ring or bulkhead - by Bat-mite - 02-19-2016, 10:41 AM
RE: Thrust ring or bulkhead - by Liquid rocman - 02-19-2016, 10:49 AM
RE: Thrust ring or bulkhead - by Liquid rocman - 02-23-2016, 11:51 AM
RE: Thrust ring or bulkhead - by Bat-mite - 02-23-2016, 05:16 PM

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