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Old 05-16-2013, 01:55 AM
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Royatl Royatl is offline
SPEV/Orion wrangler
 
Join Date: Mar 2005
Location: Atlanta, GA
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Quote:
Originally Posted by Vanel
My time line and notes so far - I welcome any comments/corrections/additions!




Estes B14 discontinued in 1980 due to safety concerns; Centuri B14 advertised until 1981.
B8 introduced in 1980; discontinued 1997
B14 - peak thrust of 7 lbs. 0.35 sec duration; B8 - peak thrust of 5 lbs, 0.6 sec duration.
C5 introduced by Centuri in 1977; discontinued by Estes in 2001 (C5-0S went away with Centuri in 1983).
C5 peak thrust of around 5 lbs (21.8 newtons)



My measurement of later "B14" motors show them to be almost identical to the first "B8" motors. It seems to me that this was the first example of a redesign (from drilled core to pressed core) where they attempted to keep the same designation, but then had to change (probably when the motors came up for re-certification after a three year term).
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