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  #11  
Old 01-29-2020, 04:43 PM
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Jerry Irvine Jerry Irvine is offline
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Along the line of my motor fit question how are the motor retainers configured? Since Estes motors do not have integrated thrust rings and are flush at both ends, what is the maximum tolerance for a nozzle extension or a delay extension? I am thinking about a new line of motors and I have some ideas to flesh out.
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  #12  
Old 01-29-2020, 04:49 PM
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I plan to fly my modified Estes Panavia on F15s. It weighs about 11oz., but has no paint yet. Itís been modified into a Sky Hook...

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Projects: Super Sky Hook, Super X-Ray, Semroc Spaceman, Estes Phoenix, Big Daddy, Enerjet 1340, Enerjet 1640 (downscale 2250)
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  #13  
Old 01-29-2020, 05:37 PM
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Now THAT'S a Sky Hook !!
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  #14  
Old 01-29-2020, 05:57 PM
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Quote:
Originally Posted by Jerry Irvine
Along the line of my motor fit question how are the motor retainers configured? Since Estes motors do not have integrated thrust rings and are flush at both ends, what is the maximum tolerance for a nozzle extension or a delay extension? I am thinking about a new line of motors and I have some ideas to flesh out.


Star Orbiter and Super Big Bertha have you use a tape thrust ring on the motor. Screw on 29mm motor retainer, no motor block. The older PSII kits have motor blocks, but you could always leave it out.

Centurion-F uses a long Estes-style motor clip.
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  #15  
Old 01-29-2020, 06:56 PM
chris m chris m is offline
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No motor block or hooks . Tape thrust ring then use retainer or z clip to retain motors . Never any problems
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  #16  
Old 01-29-2020, 06:58 PM
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I could not find a roll of 1/4Ē masking tape anywhere locally, but I found a roll on Amazon. Perfect width for making the aft thrust ring on the F15 motors.
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Projects: Super Sky Hook, Super X-Ray, Semroc Spaceman, Estes Phoenix, Big Daddy, Enerjet 1340, Enerjet 1640 (downscale 2250)
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Last Completed: SuperNova
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  #17  
Old 01-29-2020, 07:04 PM
chris m chris m is offline
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I just use 1/2 tape or the one inch masking tape .
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  #18  
Old 01-29-2020, 07:07 PM
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Quote:
Originally Posted by chris m
I just use 1/2 tape or the one inch masking tape .

....and an X-acto knife.

Iíve gotten 1/4 inch masking tape from ASP but itís been kind of frustrating to work with (tears too easily).
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  #19  
Old 01-29-2020, 10:15 PM
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Quote:
Originally Posted by chris m
I just use 1/2 tape or the one inch masking tape .


I meant I use 1/4Ē tape when making a thrust ring for F15s getting held in with a screw-on retainer. There is not enough room to capture the threads with wider tape.
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Projects: Super Sky Hook, Super X-Ray, Semroc Spaceman, Estes Phoenix, Big Daddy, Enerjet 1340, Enerjet 1640 (downscale 2250)
Awaiting Paint: Estes Saturn 1B
Last Completed: SuperNova
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  #20  
Old 01-29-2020, 10:18 PM
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Quote:
Originally Posted by BEC
....and an X-acto knife.

Iíve gotten 1/4 inch masking tape from ASP but itís been kind of frustrating to work with (tears too easily).


If your feeling flush with cash, you could get a roll of Tamiya 6mm tape for your thrust rings.
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Projects: Super Sky Hook, Super X-Ray, Semroc Spaceman, Estes Phoenix, Big Daddy, Enerjet 1340, Enerjet 1640 (downscale 2250)
Awaiting Paint: Estes Saturn 1B
Last Completed: SuperNova
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