Issue w/ CTI J425BS in OR

[Disaster_Guy]

Has anyone else had an issue with correct simulation of the CTI J425 in Open Rocket? I have tried to sim it one two separate 38mm rockets and I am getting very skewed results. For example, on a virgin Wildman Warrior RS file, the J425 is showing an apogee of 813ft while the J400 is showing 6,781 and J410 is showing 7,441. Perhaps something odd with the import of this specific thrustcurve?

 

[mikec]

Has anyone else had an issue with correct simulation of the CTI J425 in Open Rocket?

Seems to work normally with my Wildman Jr file. Are you sure your rocket is stable in simulation?

 

[Disaster_Guy]

Based on each plot it appears stable. Also, the J425 is the only motor that I am seeing this behavior with.

 

[mikec]

Why don't you post your .ork file? Are you using 12.03 or some earlier version?

 

[CarVac]

The J425 sim file has the numbers for pounds of thrust, instead of newtons, though OpenRocket doesn't know that.