I thought that, given that you re working within the same motor size, these old Jetex fuel pellets were interchangeable. Not so?
No! The earlier aluminum motors (mostly the Wilmot Mansour products) used a relatively cool burning guanidine nitrate fuel. Later steel motors (made by Sebel) used a hotter burning ammonium nitrate formula with slightly more thrust. There are many sad stories of folks who have literally melted their aluminum motors when using ammonium nitrate pellets. The steel motors, while being able to handle the ammonium nitrate fuel, weigh more. You won’t damage them with the older guanidine nitrate pellets but, since that fuel creates a less aggressive thrust, you will have a very poor performer since the motor will be too heavy for the power that it is creating. There is still a fairly large number of the newer Jet-X motors with matching fuel pellets out there but, quite frankly, this newer system never worked as well as the earlier Jetex products when those old motors were paired up with the proper respective fuel.
Related Questions
- Can we put a time range for transfer for all messages bigger than a given size, so that during peak traffic hours, only small messages are transferred?
- I thought that, given that you re working within the same motor size, these old Jetex fuel pellets were interchangeable. Not so?
- Do you think that anybody will make a new Jetex motor and fuel system?
