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  #21  
Old 01-20-2023, 05:46 PM
Joe Wooten's Avatar
Joe Wooten Joe Wooten is offline
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Quote:
Originally Posted by MrTwisty
Currently trying to do a school project with an altimeter and the A8-3's don't seem to have enough energy to push out the added weight with the altimeter. 100% failure rate. Chute failed to eject from tube everytime.
Without the altimeter there's no issues.
This is on multiple rockets so I don't think anything is getting bound up or snagged.


Were they plastic fin can rockets like an Alpha 3?
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  #22  
Old 01-21-2023, 09:14 AM
frognbuff frognbuff is offline
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I can't speak to A8-3s, but I lost two rockets last year to non-existent ejection charges - one D12-5 and one C11-3. In both cases, the rocket lawn-darted and the motor was removed with clay end-cap intact. Reported both to Estes, but this is a truly disturbing trend.
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  #23  
Old 01-21-2023, 09:19 AM
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ghrocketman ghrocketman is offline
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When I flew a lot more back in the 70's and 80's, problems like these were VERY FEW and far in-between.
Never had ANY failures to eject nor nozzles spit from casings.
Few catos as well.
With modern technology this should happen even less, NOT worse.
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  #24  
Old 01-21-2023, 11:35 AM
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erik442 erik442 is offline
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Agreed. I've had more engine issues as a BAR than I ever had as a kid.
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  #25  
Old 01-23-2023, 07:23 PM
MrTwisty MrTwisty is offline
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Quote:
Originally Posted by Joe Wooten
Were they plastic fin can rockets like an Alpha 3?

This was using multiple Estes Crossfires

Just had an ejection charge failure with Mr. Twisty and a C11-5.
Luckily the ground was soft after a heavy rain yesterday. Rocket is easily repairable.
Video here.
https://youtu.be/wesVOaQBVBY
For the record I keep my motors in a sealed plastic tub indoors, climate controlled.
When I was setting up this rocket the included "black" plug kept falling out. I knew something was wrong but tried another "black" plug. It fell out so I grabbed a "white" plug from a fresh D12 pack.
I should have known better when the plug failed.....

Date coded J201120
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  #26  
Old 01-23-2023, 07:36 PM
MrTwisty MrTwisty is offline
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I'll also add that coming off the launch rod Mr.Twisty was squirelly as hell.
I probably lost 25% of altitude from the eradic flight.
It's not the most arrow straight rocket design but it was obviously something else going on.
That was 1 engine from a 2 pack.
I have the matching motor still.
Please advise.
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  #27  
Old 01-23-2023, 09:06 PM
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Ltvscout Ltvscout is offline
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Quote:
Originally Posted by MrTwisty
I'll also add that coming off the launch rod Mr.Twisty was squirelly as hell.
I probably lost 25% of altitude from the eradic flight.
It's not the most arrow straight rocket design but it was obviously something else going on.
That was 1 engine from a 2 pack.
I have the matching motor still.
Please advise.

Contact Estes. They should provide you with replacement motors.

Fill out a MESS form.

http://www.motorcato.org/
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  #28  
Old 01-23-2023, 09:43 PM
MrTwisty MrTwisty is offline
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Ontop of that....
If you saw my "lawndart" thread...
We had 2 motors from the same pack that cata'd 2 feet off the launch rod. I'm glad we run safety protocols because they were fairly violent for 1/2A3-4T's.
Plus atleast 1 more ejection failure (still haven't found that rocket, and it should have arced down to the game board).
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  #29  
Old 01-24-2023, 09:46 AM
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astronwolf astronwolf is offline
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Quote:
Originally Posted by MrTwisty
This was using multiple Estes Crossfires

Just had an ejection charge failure with Mr. Twisty and a C11-5.
Luckily the ground was soft after a heavy rain yesterday. Rocket is easily repairable.
Video here.
https://youtu.be/wesVOaQBVBY


Two things:

1. Looks to me more like you should have used a C11-3. The whole flight was like 5-seconds. It looks like it didn't have time to eject.

2. Show us the front end of the motor with the ejection charge failure. Show us that the clay cap was still intact.
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  #30  
Old 01-24-2023, 11:09 AM
MrTwisty MrTwisty is offline
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This was the third flight for this rocket.
First 2 were on C11-3's. Video of second launch here:
https://youtube.com/shorts/pUZKWHZB1Dk?feature=share
I'm currently out of C11-3's so thought I would test a 5

This is the spent C11-5 motor.
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