I bought one of the new Estes Pro Series rockets, the Leviathan, and it shows that the thrust ring is optional. Should I use it, and if so, how deep?

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BAR in his second tour of duty.
Nar# 32629

If you leave it out, you have the option to use different size/power motors. If you know for certain you will only use one size motor, glue it in at the depth for that particular motor. Otherwise, leave it out. Some single use motors have a thrust ring molded into them at the nozzle end. If your motor doesn't have it molded in, use tape to make a thrust ring.

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I love sanding.

If it is optional, did they mention how to use motors of indefinite/longer length?

To me it is almost entirely a UI issue.

Jerry

The rocket comes with a screw on cap to keep the motor from ejecting. I guess you friction fit it as a thrust ring?

__________________
BAR in his second tour of duty.
Nar# 32629

Nope

__________________
BAR in his second tour of duty.
Nar# 32629

As I said, some motors have a thrust ring molded into them. If they don't, you use tape to make a thrust ring. There's no need for friction fitting because the kit has a retaining cap. Friction fitting would only be needed if you can't use the cap.

Here's what I mean for a tape thrust ring. It's from one of Doug's posts.

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I love sanding.

Originally Posted by Jerry Irvine
If it is optional, did they mention how to use motors of indefinite/longer length? I will.



I sometimes get tired of posting this since 1984, after the internet 1994, after the web 2000.

Okay maybe I just get tired.

Jerry

I understand but don't see how I could do that and use the retaining cap

__________________
BAR in his second tour of duty.
Nar# 32629

IF the retain cap ID is bigger then the tape OD you apply and the engineered gap length is the same as the tape width it would work. You should document this detail for the public at large.

My guess? 3/8" tall x 1/32" thick. Lottery ticket?

You won't need to do that with the motors Estes wants you to use in the rockets. They have molded thrust rings and will fit with the cap.

__________________
I love sanding.