New motors certified - May 2021

[Alan Whitmore]

The TMT crew has tested and certified two new motors from Aerotech. The first is an 18mm single-use device in the Q-jet by Aerotech series, called the B6W. It is available and was tested in 4 and 6 second delay versions. The total impulse is 4.865 N.s and the average is 4.222 N.
The second is a reload kit for the 75/3840 hardware called the L1940X-P. This uses the relatively new Propellant X. Total impulse for this motor is 4329 N.s and average is 1939.3 N.
Alan Whitmore
Chair, TMT

 

[JohnCoker]

Added entries to ThrustCurve.org. If anyone has motor data, please contribute it.

• https://www.thrustcurve.org/motors/AeroTech/L1940X/
• https://www.thrustcurve.org/motors/Quest/B6W/

 

[mikec]

Added entries to ThrustCurve.org. If anyone has motor data, please contribute it.

Added a quick TCTracer version of the L1940X.

 

[Alan Whitmore]

One detail I should have mentioned is that Aerotech recommends using the stainless steel forward seal disc with the L1940X.

 

[3stoogesrocketry]

One detail I should have mentioned is that Aerotech recommends using the stainless steel forward seal disc with the L1940X.

I believe AT recommends the SS seal disk on all 75mm loads now. It makes more sense from a business stand point.

 

[FredA]

At 4330ns (4400ns rounding up) the L-1940X is pretty tight for J motors but it works to stays under M-impulse when mated with a nice variety Good deal.

 

[3stoogesrocketry]

At 4330ns (4400ns rounding up) the L-1940X is pretty tight for J motors but it works to stays within M-impulse when mated with a nice variety Good deal.

A nice ride would be a 54 mm M motor sitting on top of the L . Just under 10kns . Done properly , you could get close to 100k.