markkoelsch
Well-Known Member
- Joined
- Mar 18, 2009
- Messages
- 4,362
- Reaction score
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Hello,
As many of you know, I am interested in flight simulation. I assist John Coker with Thrustcurve, I provide complete by manufacturer motor files on my site rocketryfiles.com, and I have assisted a lot of people with simulations and design tweaks when I was a Moderator on Rocketry Planet.
One thing that always concerned me a bit was the lack of a set of motor files for Kosdon motors. Frank made some great motors, but as many know he was not a computer type of guy. So, when he went back into production I had hoped to fix this, and then he passed.
I decided to try to fix this for historical purposes. I approached Paul Holmes asking for any cert data he might have, which he provided (thanks Paul). The file is as complete as I can make it with the data I could piece together. The rasp file can be found here:
https://www.rocketryfiles.com/?p=home&d=FlightSimulation/MotorFiles/ . There is a username and password, which are both guest. The file is called kosdon2014.eng.
As I stated, the files is not complete. If you have any of the following motors in a eng/rasp format please email them to me off list. The motors, the certified ones at least ( as stated from Franks 2000 catalog, that I do not have data for are as follows:
G65DH
I300 F
I420F
J345S
J530S (also called the J900)
J340F
J130S
K410S
L630S
L820S
L1500F
M1130S
In addition, the entire line of uncertified 2.5 motors are without data.
I have spent a fair amount of time getting this together- I hope you find it useful.
As many of you know, I am interested in flight simulation. I assist John Coker with Thrustcurve, I provide complete by manufacturer motor files on my site rocketryfiles.com, and I have assisted a lot of people with simulations and design tweaks when I was a Moderator on Rocketry Planet.
One thing that always concerned me a bit was the lack of a set of motor files for Kosdon motors. Frank made some great motors, but as many know he was not a computer type of guy. So, when he went back into production I had hoped to fix this, and then he passed.
I decided to try to fix this for historical purposes. I approached Paul Holmes asking for any cert data he might have, which he provided (thanks Paul). The file is as complete as I can make it with the data I could piece together. The rasp file can be found here:
https://www.rocketryfiles.com/?p=home&d=FlightSimulation/MotorFiles/ . There is a username and password, which are both guest. The file is called kosdon2014.eng.
As I stated, the files is not complete. If you have any of the following motors in a eng/rasp format please email them to me off list. The motors, the certified ones at least ( as stated from Franks 2000 catalog, that I do not have data for are as follows:
G65DH
I300 F
I420F
J345S
J530S (also called the J900)
J340F
J130S
K410S
L630S
L820S
L1500F
M1130S
In addition, the entire line of uncertified 2.5 motors are without data.
I have spent a fair amount of time getting this together- I hope you find it useful.
