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Old 06-27-2008, 01:11 PM
carbons4 carbons4 is offline
Craftsman
 
Join Date: Jun 2008
Posts: 311
Default FSI History

First of all George wanted to keep the motor buisness. He was just tired of the hobby side. Thats what Lonnie and Larry bought. I never went to Burns flat but I know we made improvements on our motors from Georges. Pressure was monitered via hydrolic pressure as well as load cells on the blocks . A lot of the problem was George did not replace spindles nearly enough and mix and grain size varied. A black powder propelant as well as the fireclay used for the nozel are both abrasive. The steel spindles used to form the core /throat would erode and get smaller. There are quite a few variables to making a black powder motor. Temp and humidity on componets and during assy. can lead to variances too. Lonnie and Larry could not get motors or had bad ones when we recieved them. Thats when took the reigns to build their own motors.
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