OOPS, my bad.
Thought it was 3 E's, not 4.
For some reason I thought they were 45g of propellant, not 40.

__________________
When in doubt, WHACK the GAS and DITCH the brake !!!

Yes, there is such a thing as NORMAL, if you have to ask what is "NORMAL" , you probably aren't !
Failure may not be an OPTION, but it is ALWAYS a POSSIBILITY.
ALL systems are GO for MAYHEM, CHAOS, TURMOIL, FIASCOS, and HAVOC !

My first response was; clustered, cool, we love clusters. Then, oh no, not 3 E's! They're notorius for catos, wouldn't use an E in anything. Then I thought that's a lot of thrust for such a small rocket. 3 C's would have done nicely.

I can give you a simple reference for future use when bumping the engine count for a known and proven model. Just add the total weight of the additional parts and engines and add that much to the nose. We've done that on many clusters and it works just fine. Most kit upgrades like this don't lend themselves well to software anyway.

In this case, the Estes shuttle already requires a lot of nose weight and it takes up a good bit of room in the nose so adding the weight of 3 E's and the mounts would really pack the nose.

I did a smaller upscale a few years back with the same kit but made it the version from the movie Armagedon. It worked ok but it still took a good bit of additional weight.

I'm looking forward to seeing your next set of launch photos after repairs.

Good luck!

Randy
www.vernarockets.com
http://www.amazon.com/dp/B00HHJHOK6
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