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Old 01-27-2020, 11:30 AM
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LeeR LeeR is online now
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Default Successful Launch of 50 year-old B14

Yesterday I launched rockets with Ed Mitton (YORF member Blastfromthepast). Ed and I had never met, we had just gotten to know each other via his rocketry blog, and here on YORF.

We flew in the Denver area on a large, grassy field, which I had not done in years. Several friends of Edís, and mine, attended.

This was the perfect opportunity to fly one of my B14s. I chose to fly a 2-stage rocket, using a B14-0, manufactured in 1969, staging to a B6-6, from 1993 (I chose to use a relatively new upper stage motor ...)

I did no enhancements, other than using a new Estes starter with a NC lacquer/BP dip. I did not do anything else, like scraping the BP.

The ignition was instantaneous, and the rocket just leapt off the pad. I had not flown any B14s since I was a kid, in the mid-60s. I had forgotten just how dramatic the liftoffs were.

The staging was successful, and the upper stage climbed very fast. I was about 15 feet from the pad, and was lucky to see the entire flight. But things looked bad at apogee ó the upper stage appeared to have no ejection, and was coming in ballistic.

(GH, this is about as close to your definition of perfection as you can get!)

The rocket stuck in the ground about 100 yards away. As ďmy photographerĒ and I walked toward it, we realized it had landed in a volley ball sand pit. The streamer was out, but was draped over a fin. The nose cone was laying next to the rocket. It looks like the streamer just did not have the drag, once it deployed, to invert the rocket for a typical descent, like a parachute would. The tube was buried about 2Ē, and removing it, I tapped out the core sample. No tube damage, other than some scuffed paint along the top 1/16Ē or so.

I should have some pictures today that Iíll add.
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Last Completed: Semroc Spaceman

Last edited by LeeR : 01-27-2020 at 12:17 PM.
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  #2  
Old 01-27-2020, 11:52 AM
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Another vote for bringing back the real B14.
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  #3  
Old 01-27-2020, 12:15 PM
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Here is the liftoff picture, and the core sample.
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Old 01-27-2020, 01:28 PM
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A Fish Named Wallyum A Fish Named Wallyum is online now
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Quote:
Originally Posted by LeeR
Here is the liftoff picture, and the core sample.

Wow, a dry field! I've heard stories about them, but never believed that they really existed.
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I miss being SAM 0058

Build floor: Estes Low Boom SST, Red River Stratos, Semroc Laser X, Semroc S.P.E.V

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In paint: Centuri Stellar Hercules, Estes Monarch, Estes Nike Apache, Quest Intruder, Semroc Egg Crate, Semroc Recruiter, Semroc Thunder Chief

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Old 01-27-2020, 01:30 PM
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You have great rocket karma! Glad there was minimal damage.

You can sorta simulate a B14 launch with a clustered pair of A8's, but it is heavier. Also, a minimum diameter rocket would probably need to be at least a BT-58 so the acceleration won't be as drastic as a BT-20 or BT-50 model. If they ever produce them again, I want to build a Ranger for a triple B14 cluster.

A pair of A8's have nearly 20 newtons peak thrust, which is nearly 4.4 lbs.
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Old 01-27-2020, 01:39 PM
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Quote:
Originally Posted by LeeR
Here is the liftoff picture, and the core sample.


So great you got a pic of a B14 liftoff, that flame is huge!
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  #7  
Old 01-27-2020, 03:45 PM
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Quote:
Originally Posted by A Fish Named Wallyum
Wow, a dry field! I've heard stories about them, but never believed that they really existed.


Bill, this field is over 50 acres. When I saw it, I started feeling light-headed! I usually fly on field with cactus and rocks.
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  #8  
Old 01-27-2020, 03:52 PM
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Quote:
Originally Posted by tbzep
You have great rocket karma! Glad there was minimal damage.

You can sorta simulate a B14 launch with a clustered pair of A8's, but it is heavier. Also, a minimum diameter rocket would probably need to be at least a BT-58 so the acceleration won't be as drastic as a BT-20 or BT-50 model. If they ever produce them again, I want to build a Ranger for a triple B14 cluster.

A pair of A8's have nearly 20 newtons peak thrust, which is nearly 4.4 lbs.


Tim,

Iíve got an Astron Cobra just waiting for them.

I only have one B14-6, so I canít do a cluster, but Iíll pair that with another B14-0 sometime. I have 4 more Estes B14-0 from 1969, and 6 Centuri B14-0 from 1979.
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  #9  
Old 01-27-2020, 04:00 PM
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I'll bet the 1979 Centuri motors do NOT have the deep stepped centerbore like the older motors.



Quote:
Originally Posted by LeeR
Tim,

Iíve got an Astron Cobra just waiting for them.

I only have one B14-6, so I canít do a cluster, but Iíll pair that with another B14-0 sometime. I have 4 more Estes B14-0 from 1969, and 6 Centuri B14-0 from 1979.
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  #10  
Old 01-27-2020, 04:27 PM
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I have flown an Astron Scrambler and Ranger on 3xB14-5 clusters.
Warp-Speed liftoffs.
__________________
When in doubt, WHACK the GAS and DITCH the brake !!!
No DIRECT and MEASURABLE Harm=NO Foul advocate

If you are NOT FLYING LOW in the left lane, you need to GET THE #$&@ OUT of it !

Yes, there is such a thing as NORMAL
, if you have to ask, you probably aren't
!
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