Forums › Knowledge Base › AP Motor Discussion – Certified › 54mm L
- This topic has 8 replies, 6 voices, and was last updated 14 years, 4 months ago by
Chris LaPanse.
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May 22, 2011 at 8:11 pm #41274
SCOTT EVANS
Joe I hope you have a selection of big 54s this next weekend.
May 22, 2011 at 8:51 pm #54358Bret Packard
ParticipantYeah, like a J430 White Thunder for me.
May 23, 2011 at 5:29 am #54359greywolves
Hey,
Speaking of 54’s, Is this, the size motor I should be using a stick to hold the e-match in the motor? or is that a 75mm and larger?
ThanksMay 23, 2011 at 2:40 pm #54360SCOTT EVANS
Stick? Whats a stick? You mean literally a stick? 😉
I dont think any of my motors have been long enough to worry about it.
54s 6xl I never have. Maybe this 75 6xl “M” might be.
I will have to think about that one.
The only other “M” I have burned would be 98mm Moonys
They were not that long, and the design made it impossible to load the igniter after the fact anyway.May 23, 2011 at 5:03 pm #54361BEAR
I think you will find on the CTI 98mm (www.pro38.com) the instructions for prepping the motor mentions an ignitor stick. Check there. Having never flown that large of a motor, yet, when Chris mentioned gluing his motor grains together I wondered what he was talking about. In the CTI website, in motor instructions, I found where it writes of gluing the grains together with gorilla glue. That was foreign to me, so I researched it. Again, look on the CTI website. 🙂
May 23, 2011 at 5:04 pm #54362edward
ModeratorYes, and you don’t glue every motor together – just the ones that explicitly say in the instructions. Doing otherwise isn’t going to get the intended result.
Edward
May 23, 2011 at 10:43 pm #54363Chris LaPanse
Personally, I’ll use a stick on 75 and larger (especially the longer ones). For 54, even the 6xl, it isn’t really necessary. I’ll also use a stick for airstarts or staging, even the smaller ones (mainly to keep the igniter up near the top).
As for grain gluing? It’s very motor dependent. Some of the CTI motors recommend gluing the grains in with Gorilla glue, and some of them include a special glue that comes with the reload. I believe a few of the large AT motors (M650, M750, and N1000 specifically) require glue, but I think they specify epoxy. Some require the grains to be glued together (specifically the longburns), and others only require the grains to be glued to the liner (but not to each other), such as the N5800 I built. If it’s required, it’ll say so in the instructions, so as far as that’s concerned, if you just follow the instructions, you should be fine.
(Also, as a general rule with the larger motors, read the instructions several days in advance – if the motor requires gluing, you can’t just assemble and fly it in a couple of hours like you would with most motors, and it would be unfortunate to discover that your motor needed gluing on the day you intended to fly it)
Finally, on the original subject of this thread, may I recommend the L990 blue streak? It’s an excellent motor, and probably my favorite of the loads for the 54/6xl.
May 24, 2011 at 4:15 am #54364SCOTT EVANS
When I did my moony the glue was more like rubber cement.
May 24, 2011 at 5:13 am #54365Chris LaPanse
Was it the CTI adhesive kit? If so, I know what you mean. The glue that came with my N5800 was a two part glue, but it dried very rubbery, not at all like epoxy.
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