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Development of a compact batchrocket core.

 
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Matt Todd wrote:@Peter van den Berg  
Do you think it would be alright to put the final exhaust opening on the BACK side of the riser instead of the front?


Yes, Glenn is right, it can be done. The lower riser part should be different, the pictures of the French bench build are quite clear how it should be done, in my opinion.
 
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Peter van den Berg wrote:

Matt Todd wrote:@Peter van den Berg  
Do you think it would be alright to put the final exhaust opening on the BACK side of the riser instead of the front?


Yes, Glenn is right, it can be done. The lower riser part should be different, the pictures of the French bench build are quite clear how it should be done, in my opinion.



Alright, so a simple matter of moving the "riser liner" to the back wall instead of the front. I was afraid that this decrease in port depth would have an effect on the design, but I see now that you have tested this and found it satisfactory. The flames still enter a square space to form the vortex before expanding in the wider top half of the riser. Thanks for confirming!
 
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