They are my favorite motor ever!!!!!! They rock...an initial Thrust peak of
400 lbs or so...dropping to about 200 lbs for about 2 seconds....Talk about
a heavy lifter.....I have a project that I am rebuilding that will take a
cluster of 5 J570's....lost it not too long ago on 2 J570's and J420....Lost
it in December and got it back in April....Can't wait to get it rebuilt.
Mark A Palmer
TRA 08542 L3.
Having missed getting into rocketry before the AT stuff dried up, I havent
seen much AT WL flown. However the K550 that I did see was awesome, and its
possible that three of those rare J570s may end up being flown together :-)
That would be something to see! My L1 rocket is designed to hold all the
Pro38 motors (intended for L2 as well), but the new J330 isn't quite the
same. I think its pretty close (on paper) to the J350, but nowhere near as
much smoke/flame. The older J360, however, had quite a different thrust
curve, with a pretty high peak thrust. Paul Brooks' Tiny Pterodactyl on a
J360 really shifted at UKRA.
UKRA 1345 L0
"Gravity assisted pieces of the rocket raining from the sky should be
avoided. It is also financially undesirable."
-Portland State Aerospace Society
Come across the Pond...I hope to re-fly this rocket in its originally
intended configuration 5 X J570's for an M2850....5460 n/s in November.
J570's are cool....lots of smoke...lots of fire...lots of lift...and a
pressure wave that you can feel at the LCO desk ;-)
I have 9 of these bad boys set aside (yes I am hoarding) ;-)
My L1 rocket is designed to hold all the
Somewhere between a 350 and a 570...cool motor too. I actually think the CTI
motors are more efficient...cleaner...and are cool....but alas...not nearly
as much smoke and fire.....the Pro75's do seem to have a little more
The older J360, however, had quite a different thrust
Now THAT is insane!!!! LOL
Mark A Palmer
TRA 08542 L3