Threemorewishes
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- Joined
- Feb 23, 2009
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Where are you? Are you too energetic for a plastic threaded closure? Inquiring minds want to know.
The current grain core size does not allow adding another grain without running into serious problems (trust me: it has been tried ;-)). To make a 5G Vmax motor we would have to open up the cores, resulting in the same total impulse as the 4G motor. Only difference would be 25% more thrust.Where are you? Are you too energetic for a plastic threaded closure? Inquiring minds want to know.
(trust me: it has been tried ;-))
Therefore, those very fast burning motors are usually limited to 2-4 grains. There are exceptions, of course, like the N-10000. The N-10000 has a large enough diameter to allow for both a large grain core and a large nozzle. The drawback is poor volumetric loading. I'm sure someone has a nice picture of an N-10000 grain to post here, but have a look at the total impulse of the N-10000 Vs other reloads for the 98-6G casing.
The current grain core size does not allow adding another grain without running into serious problems (trust me: it has been tried ;-)). To make a 5G Vmax motor we would have to open up the cores, resulting in the same total impulse as the 4G motor. Only difference would be 25% more thrust.
Jeroen
If the nozzle is not large enough, pressure will build up and :y:.
https://www.rocketryforum.com/showpost.php?p=129412&postcount=91
Yeah, the cores are pretty big on the N10000. Almost comically so.
Psh, you just need to use a thicker motor case to handle the pressure.
Here ya go.You just ignored the prime directive of TRF: Post pictures!
Here ya go.
All Vmax propellants have the same energy. Energetic means something entirely different.Where are you? Are you too energetic for a plastic threaded closure? Inquiring minds want to know.
Then they would have to make the case wider and thicker.
If they made it wider everyone could not use it because it doesnt fit their motor mount diameter and no one would buy it. Plus one case that fits just 1 engine wont sell well either.
Here ya go.
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