Aerotech RMS ejection caps

Are people using these red caps? I can't break my habit of using the paper sticker and a couple strips of masking tape.

Buckeye said:

Are people using these red caps? I can't break my habit of using the paper sticker and a couple strips of masking tape.

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Yes, works great

I use them if I am not adding any extra BP, but then I am relatively new to composite motors....

Yes I use them they work out well.

I use them, but when there is a baffle in the rocket (MPR or LPR) I use tape instead, just in case they might break the baffle as some people have reported them capable of doing.

rharshberger said:

I use them, but when there is a baffle in the rocket (MPR or LPR) I use tape instead, just in case they might break the baffle as some people have reported them capable of doing.

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Yes, I can attest to them breaking baffles, at least ones made of balsa. I had an Estes Executioner set up as an anti-zipper, and used the coupler as a baffle. Lesson learned, but at least it was removable and easily replaced. I made another one with basswood and haven't had any problems since.

McKailas Dad said:

Yes, I can attest to them breaking baffles, at least ones made of balsa. I had an Estes Executioner set up as an anti-zipper, and used the coupler as a baffle. Lesson learned, but at least it was removable and easily replaced. I made another one with basswood and haven't had any problems since.

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I usually use 1/8" ply in my MPR baffles and put a dowel down the center of all three plates (half moon style baffle) for the screw eye.

I don't use baffles, the rubber caps are real easy. I put them in even when I don't put in the BP, such as the 38mm J's where the delay may be too short and I'm using electronic deployment. I wish the bigger DMS motors had longer delays, say 20 seconds that you could drill down. 14 seconds is great for the G80, no so good for the K535.

I use the red cap on MPR 24mm and 29mm. I was surprised to see a bigger red cap in the 29mm and 38mm HPR reloads (it has been a while). Aerotech still provides the old school paper disk sticker, of which I am familiar.

I like the caps, never liked the paper disk. No way I would trust the disk alone without tape. The cap is a nobrainer. Just put the powder in and cap it. Simple.