There's a TV commercial about that.

__________________
Bill Eichelberger
NAR 79563

http://wallyum.blogspot.com/

I was SAM 0058

On the build floor: Centuri Stellar Hercules, Semroc SLS Scorpion, Semroc Squire, RDC V-Max

Ready to fly: Canaroc Green Hornet, Estes Astron Farside X, FSI Eos, FRW Magnum Spartan, Centuri Stellar StarLifter, Estes World Federation Star Probe, Estes Astron Apogee

Whoa...at first glance (in the small thumbnail image, just before I read your posting), I thought it was a pickle! I guess the combination of its heat-caused relative plasticity, its rapid (gravity plus backward [downward?] ejection out the back of the rocket) downward travel, and the hardness of the ground where it hit may all have contributed to its deformation.

__________________
Black Shire--Draft horse in human form, model rocketeer, occasional mystic, and writer, see:
http://www.lulu.com/content/paperba...an-form/8075185
http://www.lulu.com/product/cd/what...of-2%29/6122050
http://www.lulu.com/product/cd/what...of-2%29/6126511
All of my book proceeds go to the Northcote Heavy Horse Centre www.northcotehorses.com.
NAR #54895 SR

Except for the last factor, yes. Sixty Acres Park is primarily a soccer facility and was being groomed for a week-long event as we were there. It's one of the softer places one can land rockets (or bits or rockets).

__________________
Bernard Cawley
NAR 89040 L1 - Life Member
SAM 0061
AMA 42160
KG7AIE

Thank you. To "forensically examine" this incident as much as it can be, was it found on the surface, or had it punched into the ground (even if it bounced back out, leaving a "dent" in the soil)? If the latter was the case, that would suggest that the motor case was quite plastic (in the way that "plastic" refers to the hot rock inside the Earth--heat-softened and pliable) at the instant of impact.

__________________
Black Shire--Draft horse in human form, model rocketeer, occasional mystic, and writer, see:
http://www.lulu.com/content/paperba...an-form/8075185
http://www.lulu.com/product/cd/what...of-2%29/6122050
http://www.lulu.com/product/cd/what...of-2%29/6126511
All of my book proceeds go to the Northcote Heavy Horse Centre www.northcotehorses.com.
NAR #54895 SR

My son didn't say...but it wasn't hard for him to find it. From that I'm inferring that it wasn't buried in the ground or even leaving a dent. As light as they are I don't see how one could do so on that site.

Yes, I'm thinking that the case is quite plastic in that sense immediately after firing, but when held in a motor tube you can't really see that unless you get to a just-flown model really quickly.

Another that was flown without the label shows a little shrinkage of the case about 1/2 an inch down from the top of the 18mm diameter portion. I checked a couple of others - I've flown 19 of these now - and can see a little of that on some of them.

__________________
Bernard Cawley
NAR 89040 L1 - Life Member
SAM 0061
AMA 42160
KG7AIE

Vern has said their "test" stand back then was a small postal scale, poorly damped, which lead to such anomalies as the B16 motor, as in 16 *pounds* average thrust, which was later corrected to three pounds thrust. The B3 (predecessor to the metric B14) could floor the undamped scale by inertia, leading Vern to believe that it was indeed producing 16 pounds of thrust.

__________________
Roy
nar12605

They are almost ready for prime time.

"Now Getting It Ready For You!"

https://www.questaerospace.com/2-Pa...5_18980165.aspx




https://www.questaerospace.com/2-Pa...5_18980110.aspx

__________________
-Fred Shecter NAR 20117 (L2)
http://www.dollarcoinalliance.org/
http://home.earthlink.net/~fredeshecter/cato_origin.pdf
http://home.earthlink.net/~fredeshecter/CatoExplanation.pdf
http://home.earthlink.net/~fredeshecter/
http://www.frbservices.org/operations/currency/new_coin.html
http://www.usmint.gov/mint_programs/$1coin/index.cfm
http://cgi6.ebay.com/ws/eBayISAPI.dll?ViewSellersOtherItems&include=0&userid=shreadvector
http://www.sirius.com

Hey Vern, I used a baby scale and a video TAPE recorder which was far less accurate than the BBQ motor on a coffee can with a pencil and a spring!

http://forums.rocketshoppe.com/atta...achmentid=41728

__________________
Exemptions not regulations. Please support DOT treating slow burning solids as not subject to HMR. 2015 NAR President declines!
U.S. Rockets instaship. http://bit.ly/1aca7mA Please buy some rockets.
The O administration believed in tax, spend, borrow, fine, mandate, monologue. D voters will soon be very happy with the election outcome!
Model rocketry is as safe as safe can be defined in human existence. Bow and pray: GH Stine, Orville, Vern, Lee, Lonnie, Carl, etc. No, really.

And look who is still in business....

__________________
-Wolfram v. Kiparski
NAR 28643
TRA 15520
MTMA Senior Advisor

Both. ONE under the original owner and ONE after 3-4 ownership changes.

Estes
Damon
Tunick
Hobbico
Langford
???

__________________
Exemptions not regulations. Please support DOT treating slow burning solids as not subject to HMR. 2015 NAR President declines!
U.S. Rockets instaship. http://bit.ly/1aca7mA Please buy some rockets.
The O administration believed in tax, spend, borrow, fine, mandate, monologue. D voters will soon be very happy with the election outcome!
Model rocketry is as safe as safe can be defined in human existence. Bow and pray: GH Stine, Orville, Vern, Lee, Lonnie, Carl, etc. No, really.