AT delay grain question.

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Rob702Martinez

Rob702Martinez

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Hi, which is the correct part numbers to buy separate delay grains for the AT RMS engines?
18/20
24/40
29/40-120
I plan to buy the longest delay timed grains and use the drilling tool to dial them in.

Thanks in advance.
 
So would I just buy the grain that corresponds to the longest delay in the chart for that motor diameter? and I can assume that it is said delay and drill to what I need?
 
Rob702Martinez said:
So would I just buy the grain that corresponds to the longest delay in the chart for that motor diameter? and I can assume that it is said delay and drill to what I need?
Click to expand...

Not just motor diameter, but propellant type too. Note that a given grain has different delays for different propellants.
 
What dpower said.

Note that the following motors all use the same delay element and have delays ranging from four to ten seconds. All are the same diameter. There is no one size fits all.

HDK-17 = E23-8T, F52-8T, F40-4W, G71-10R, G53-7J
 
Last edited:

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