Help Needed: Linear Thrust Curve

Does anyone know if a motor manufacturer makes a motor with a linear thrust curve? Specifically, I'm looking for approx. 200 lbs. of thrust for several seconds.

Hybrid would fine, that would give me a good excuse to research them.

I'm hoping to certify L2 next week with my 4" Talon. After that, I'd like to start experimenting with different thrust curves and acceleration rates.

Thanks in advance!

K780R is a 3 second burn holding about 200 lb thrust for about 3 seconds.

L850W is about 250 pounds of thrust for 2 seconds, triling down until about 4.5 seconds.

L952W is about 200 pound thrust burn for 6 seconds or so, 98mm

The aerotech catalog shows everything in pounds of thrust, and it shows their curves

let thrustcurve.org be your friend

Thanks guys. Both are excellent suggestions.

I saw that some of the recommendations above include 75 MM motors, but i looked and a 4" Talon uses a 54 MM motor mount, so i will stick to 54 MM for my recommendations (unless you had yours made with a 75 MM motor mount).

To achieve 200# for a few seconds, a long 54 MM motor would work great. CTI has a bunch of motors that would fit the bill.

Pro54 6GXL:

2788L1030 Imax - 230# average over 2.7 seconds
2771L990 Blue Streak - 220# average over 2.8 seconds
3147L935 Red Lightning - 209# average over 3.4 seconds (3147 Ns!!!!)

There is also the Aerotech K1050, which would also work great.
If u want a little less thrust, pick the next smaller motor.

Hope this helps

i just looked at the aerotech catalog and wrote down the motors with the right thrust curve didn't think to look up what the mmt size for that model was doh

Thanks guys.

I have a CTI Pro 54 6XGL case. (it came with my Kestrel kit that I just bought) It will do double duty and fly in both the Kestrel and 4" Talon.

The problem with the CTI L935 is the whopping 1600N initial thrust. I know that the rocket will take that, but I want to do some experimenting. I'm looking for a smoooooth curve.

Kestrel and case:
https://www.rocketryforum.com/showthread.php?t=16086

Check out the 4 Grain K940WT. I'm pretty sure you can use the spacers down to 4G in that case.

I flew this motor in my Extreme Darkstar last week. It weighed 20lbs on the pad and reached 3,600ft.

https://www.thrustcurve.org/simfilesearch.jsp?id=1864