Both sustainers lost despite clear blue sky. Damage to booster in one case.

2 x Estes 'SO LONG' Model Rocket Launch

https://www.youtube.com/watch?v=-o2HdyLw8SU

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The other day I sat next to a woman who has a profound fear of flying. I wanted to comfort her, so I said, "Don't worry, we're not gonna' crash. Statistically, we got a better chance of being bitten by a shark." Then I showed her the scar on my elbow from a shark attack. I said, "I got this when my plane went down off of Florida." - Dennis Regan

It lived up to its name!

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Scott D. Hansen
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WOOSH NAR Section #558

I'm waiting for any sucessful launch reports from others.

Long ago, I did a ground test of a 29mm Estes BP motor to check the ejection force in a minimum diameter airframe (29mm LOC motor tubing). It blew the Apogee Rockets 29mm fiberglass nose cone (no longer made) off like a shotgun blast with such force that it tore out the Kevlar line shock cord anchor epoxied to the inside of the body tube and the nose cone went flying some distance trailing its streamer.

I suspect that this might be the reason Estes made the So Long so long - to increase the volume to be filled by the gasses from the shotgun blast of the motor's ejection charge. The ejection charge blast alone or perhaps that combined with a possible high velocity deployment with the F15-0/F15-8 combination both of these (former) So Long owners used may have resulted in recovery system separation leading to the loss of the rockets.

__________________
The other day I sat next to a woman who has a profound fear of flying. I wanted to comfort her, so I said, "Don't worry, we're not gonna' crash. Statistically, we got a better chance of being bitten by a shark." Then I showed her the scar on my elbow from a shark attack. I said, "I got this when my plane went down off of Florida." - Dennis Regan

There's a sad sort of beeping
From the launch controller at the pad
And the altimeter in the nose too,
And up in the display rack an absurd little rocket
Is popping out to say "launch me too".

Regretfully they tell us,
But firmly they compel us
To say “launch me” to you.

So long, farewell, Auf wiedersehen, good night,
I hate to go and leave this pretty launch site.
So long, farewell, Auf wiedersehen, adieu,
Adieu, adieu, to yieu and yieu and yieu.

So long, farewell, Au'voir, auf wiedersehen,
I'd like to stay at my first launch campaign
So long, farewell, Auf wiedersehen, goodbye,
I leave and heave a sigh and say goodbye,
Good bye

I'm glad to go,
I cannot tell a lie.
I flit, I float,
I fleetly flee, I fly.

The sun has gone high in the sky and so must I
So long, farewell, auf wiedersehen, goodbye,
Goodbye,
Goodbye,
Goodbye!

Hmmm... that sounds like it should be set to music!

__________________
The other day I sat next to a woman who has a profound fear of flying. I wanted to comfort her, so I said, "Don't worry, we're not gonna' crash. Statistically, we got a better chance of being bitten by a shark." Then I showed her the scar on my elbow from a shark attack. I said, "I got this when my plane went down off of Florida." - Dennis Regan

My apologies to Rodgers and Hammerstein......

“The hills are alive with the sound of rockets….” I think Julie Andrews could probably sing that, too!

Earl

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Earl L. Cagle, Jr.
NAR# 29523
TRA# 962
SAM# 73
Owner/Producer
Point 39 Productions

Rocket-Brained Since 1970

Pretty obviously not flying the field, and then posting it on Youtube. Wonderful.

I WAS going to make a very long, 29mm two stage rocket like the So Long with two pods on the E16-0 powered booster containng C11s and an F15-8 in the sustainer, the ejection charges on the C11s providing parachute recovery of the booster and the total mass of propellant being 124 grams, one gram under the Class 1 limit of 125 grams and have already cut the 29mm LOC motor tubing I was going to use.

However, as I said above, the loss of both of their sustainers may indicate that even with a LONG body tube the shotgun effect of the powerful ejection charge I also mentioned above from a test I did long ago may still be too much even with the greater internal volume of the very long body tube.

That's why I'm waiting for some So Long success stories.

__________________
The other day I sat next to a woman who has a profound fear of flying. I wanted to comfort her, so I said, "Don't worry, we're not gonna' crash. Statistically, we got a better chance of being bitten by a shark." Then I showed her the scar on my elbow from a shark attack. I said, "I got this when my plane went down off of Florida." - Dennis Regan

Or just fly composites and adjust the charge as needed.

https://www.rocketryforum.com/threa...12#post-2464344