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  #11  
Old 08-11-2022, 01:10 PM
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blackshire blackshire is offline
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Quote:
Originally Posted by astronwolf
A report of a weak ejection charge on YORF is not like Estes "careening from one guard rail to the other." How you exaggerate...

This weekend we're hosting a Cub Scout pack. I will witness ~60-80 A8-3 powered flights. I'll let you all know what the outcome was.
Having had a few rockets partly RUD-ed (and ruined, by split BT-5 seams) by the overly-powerful mini motor ejection charges (even a Quest Starhawk--designed for 18 mm A6-4 motors, which I flew with a 13 mm motor adapter mount--had its interior quickly well-"toasted"), I wouldn't say it was "exaggeration." Even 13 mm boost-glider competition flyers reported split-open BT-5 motor pod body tubes back then.
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  #12  
Old 08-11-2022, 03:32 PM
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Quote:
Originally Posted by blackshire
Having had a few rockets partly RUD-ed (and ruined, by split BT-5 seams) by the overly-powerful mini motor ejection charges (even a Quest Starhawk--designed for 18 mm A6-4 motors, which I flew with a 13 mm motor adapter mount--had its interior quickly well-"toasted"), I wouldn't say it was "exaggeration." Even 13 mm boost-glider competition flyers reported split-open BT-5 motor pod body tubes back then.


You toasted a rocket 25 years ago? And are now comparing it to a report of a bad ejection charge a few months ago?
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  #13  
Old 08-11-2022, 03:34 PM
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mojo1986 mojo1986 is offline
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Quote:
Originally Posted by astronwolf
A report of a weak ejection charge on YORF is not like Estes "careening from one guard rail to the other." How you exaggerate...

This weekend we're hosting a Cub Scout pack. I will witness ~60-80 A8-3 powered flights. I'll let you all know what the outcome was.


And the engine production lot numbers too, please
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  #14  
Old 10-08-2022, 05:40 PM
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Had a Cub Scout launch today and we used up a whole bulk pack of A8-3 motors.

I submitted 3 MESS reports for two very low thrust and one almost non-existent ejection charge. Last August we burned through a whole bulk pack on A8-3 motors with no malfunctions.

The total number of MESS reports submitted for the A8-3 motor for 2022 = 3.

That's it. Just three - the reports that I made.
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  #15  
Old 10-08-2022, 09:39 PM
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Quote:
Originally Posted by astronwolf
Had a Cub Scout launch today and we used up a whole bulk pack of A8-3 motors.

I submitted 3 MESS reports for two very low thrust and one almost non-existent ejection charge. Last August we burned through a whole bulk pack on A8-3 motors with no malfunctions.

The total number of MESS reports submitted for the A8-3 motor for 2022 = 3.

That's it. Just three - the reports that I made.



Three out of a whole pack of A8-3's isn't bad.
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  #16  
Old 10-09-2022, 04:00 AM
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3 failures out of 24 isn't bad ?
C'mon noww.
That failure rate of 12.5% totally SUCKS.
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  #17  
Old 10-09-2022, 09:18 AM
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Quote:
Originally Posted by ghrocketman
3 failures out of 24 isn't bad ?
C'mon noww.
That failure rate of 12.5% totally SUCKS.

If you count both launches, it is more like 3 failures out of 48. Still disappointing. I've never thought of the A8-3 as a problematic motor, having flown so many of them since the 1970s.

If there is a problem, I wonder why more MESS reports aren't being filed? Even the other example in this thread was not reported.
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  #18  
Old 10-09-2022, 09:32 AM
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Joe Wooten Joe Wooten is offline
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Quote:
Originally Posted by astronwolf
If you count both launches, it is more like 3 failures out of 48. Still disappointing. I've never thought of the A8-3 as a problematic motor, having flown so many of them since the 1970s.

If there is a problem, I wonder why more MESS reports aren't being filed? Even the other example in this thread was not reported.


Been too busy, and not too long after that launch I spent a week in the hospital for chicken poop induced pneumonia, then the wife had to have emergency gall bladder removal followed by my mother going into hospice in mid-August and dying Sept 2nd. It was not a really good summer in 2022......
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  #19  
Old 10-09-2022, 10:12 AM
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Quote:
Originally Posted by Joe Wooten
Been too busy, and not too long after that launch I spent a week in the hospital for chicken poop induced pneumonia, then the wife had to have emergency gall bladder removal followed by my mother going into hospice in mid-August and dying Sept 2nd. It was not a really good summer in 2022......

Yep... I have for a thousand reasons neglected to fill out more MESS reports than I have ever submitted. It's inconvenient, and other than the summary data being interesting to look at, of dubious value. Hope things get better for you going into 2023.
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