Comments on: Launching a Christmas tree with 32 large model rocket engines http://boingboing.net/2010/01/06/launching-a-christma.html Brain candy for Happy Mutants Sat, 25 May 2013 09:30:00 +0000 hourly 1 http://wordpress.org/?v=3.4.1 By: merreborn http://boingboing.net/2010/01/06/launching-a-christma.html#comment-680717 merreborn Wed, 30 Nov -0001 00:00:00 +0000 #comment-680717 Does the guy on the right's shirt say something about "Creationism"? If it says what I think it does, it looks awesome. Where can I get one? Does the guy on the right’s shirt say something about “Creationism”?

If it says what I think it does, it looks awesome. Where can I get one?

]]> By: ValuedRug http://boingboing.net/2010/01/06/launching-a-christma.html#comment-681233 ValuedRug Wed, 30 Nov -0001 00:00:00 +0000 #comment-681233 Yes, but the weight of 1 d12-0 is .05 lbs less than the next closest d12. D12's all produced the same force for the same amount of time, but .05lbs x 32 = 1.6 lbs of extra crap, all in the name of "safety" http://www.spaar.org/Downloads/Library/EstesEngineSpecs.pdf See, I can science. Yes, but the weight of 1 d12-0 is .05 lbs less than the next closest d12. D12′s all produced the same force for the same amount of time, but .05lbs x 32 = 1.6 lbs of extra crap, all in the name of “safety”

http://www.spaar.org/Downloads/Library/EstesEngineSpecs.pdf

See, I can science.

]]> By: Anonymous http://boingboing.net/2010/01/06/launching-a-christma.html#comment-680743 Anonymous Wed, 30 Nov -0001 00:00:00 +0000 #comment-680743 I think it says "Creationism, it's just easier" I think it says “Creationism, it’s just easier”

]]> By: Satan Ate My Ears http://boingboing.net/2010/01/06/launching-a-christma.html#comment-680752 Satan Ate My Ears Wed, 30 Nov -0001 00:00:00 +0000 #comment-680752 #6... Shouldn't it be "keep on rocking in the tree world"? #6… Shouldn’t it be “keep on rocking in the tree world”?

]]> By: ZippySpincycle http://boingboing.net/2010/01/06/launching-a-christma.html#comment-680507 ZippySpincycle Wed, 30 Nov -0001 00:00:00 +0000 #comment-680507 Slackers + Rockets = Awesome Slackers + Rockets = Awesome

]]> By: Antinous / Moderator http://boingboing.net/2010/01/06/launching-a-christma.html#comment-680508 Antinous / Moderator Wed, 30 Nov -0001 00:00:00 +0000 #comment-680508 Funny, but too bad they didn't bedeck it with ornaments and tinsel before launch. Isn't this a national sport somewhere in Scandinavia? Funny, but too bad they didn’t bedeck it with ornaments and tinsel before launch. Isn’t this a national sport somewhere in Scandinavia?

]]> By: Anonymous http://boingboing.net/2010/01/06/launching-a-christma.html#comment-680510 Anonymous Wed, 30 Nov -0001 00:00:00 +0000 #comment-680510 ah... model rocketree at its finest. ah… model rocketree at its finest.

]]> By: Felton http://boingboing.net/2010/01/06/launching-a-christma.html#comment-680512 Felton Wed, 30 Nov -0001 00:00:00 +0000 #comment-680512 Scotty: "The energizer's bypassed like a Christmas tree, so don't give me too many bumps!" Scotty: “The energizer’s bypassed like a Christmas tree, so don’t give me too many bumps!”

]]> By: surgicalsnack http://boingboing.net/2010/01/06/launching-a-christma.html#comment-680774 surgicalsnack Wed, 30 Nov -0001 00:00:00 +0000 #comment-680774 I believe that would be "keep on ROCKETING in the tree world". I believe that would be “keep on ROCKETING in the tree world”.

]]> By: Marchhare http://boingboing.net/2010/01/06/launching-a-christma.html#comment-680780 Marchhare Wed, 30 Nov -0001 00:00:00 +0000 #comment-680780 @Antinous: Do you have the Gävle goat in mind? @Antinous: Do you have the Gävle goat in mind?

]]> By: Anonymous http://boingboing.net/2010/01/06/launching-a-christma.html#comment-680526 Anonymous Wed, 30 Nov -0001 00:00:00 +0000 #comment-680526 Love it. Love it.

]]> By: Gilbert Wham http://boingboing.net/2010/01/06/launching-a-christma.html#comment-680782 Gilbert Wham Wed, 30 Nov -0001 00:00:00 +0000 #comment-680782 Again! Again! With more, bigger motors! Whoosh! Again! Again! With more, bigger motors! Whoosh!

]]> By: Anonymous http://boingboing.net/2010/01/06/launching-a-christma.html#comment-680528 Anonymous Wed, 30 Nov -0001 00:00:00 +0000 #comment-680528 ROCK ON!!! You both should seriously consider aerospace engineering careers!!! NASA needs intellectuals like yourselves!!! And thanks to our very convincing senators here in Florida I think the space program may just make the cut when we ATTEMPT to re-construct the AMERICAN way of life,liberty and the search for allusive happiness!!! Keep on Rocking in the Free World" To quote Neil Young. ROCK ON!!! You both should seriously consider aerospace engineering careers!!! NASA needs intellectuals like yourselves!!! And thanks to our very convincing senators here in Florida I think the space program may just make the cut when we ATTEMPT to re-construct the AMERICAN way of life,liberty and the search for allusive happiness!!! Keep on Rocking in the Free World” To quote Neil Young.

]]> By: technogeek http://boingboing.net/2010/01/06/launching-a-christma.html#comment-680801 technogeek Wed, 30 Nov -0001 00:00:00 +0000 #comment-680801 Who would have expected a tree to be that stable in flight? Who would have expected a tree to be that stable in flight?

]]> By: Anonymous http://boingboing.net/2010/01/06/launching-a-christma.html#comment-680802 Anonymous Wed, 30 Nov -0001 00:00:00 +0000 #comment-680802 I wonder how heavy the star had to be to give it enough stability? I wonder how heavy the star had to be to give it enough stability?

]]> By: lava http://boingboing.net/2010/01/06/launching-a-christma.html#comment-680810 lava Wed, 30 Nov -0001 00:00:00 +0000 #comment-680810 I guess you call that project model rocketree. I guess you call that project model rocketree.

]]> By: mcarrick http://boingboing.net/2010/01/06/launching-a-christma.html#comment-680563 mcarrick Wed, 30 Nov -0001 00:00:00 +0000 #comment-680563 Love the 461 Ocean Blvd. on wall. Love the 461 Ocean Blvd. on wall.

]]> By: Anonymous http://boingboing.net/2010/01/06/launching-a-christma.html#comment-681340 Anonymous Wed, 30 Nov -0001 00:00:00 +0000 #comment-681340 Alcohol TF or Homeless Security should hire them as a consultants. Alcohol TF or Homeless Security should hire them as a consultants.

]]> By: Anonymous http://boingboing.net/2010/01/06/launching-a-christma.html#comment-681597 Anonymous Wed, 30 Nov -0001 00:00:00 +0000 #comment-681597 Great video, but the dry grass looks like a extreme fire hazard. Nonetheless, model rocketry at it's very best. Great video, but the dry grass looks like a extreme fire hazard. Nonetheless, model rocketry at it’s very best.

]]> By: solflare http://boingboing.net/2010/01/06/launching-a-christma.html#comment-680574 solflare Wed, 30 Nov -0001 00:00:00 +0000 #comment-680574 Awesome, but what they should have done is wait till it turns brown and set it on fire 7 seconds before launch. Srsly guys go get another tree and do this. Awesome, but what they should have done is wait till it turns brown and set it on fire 7 seconds before launch. Srsly guys go get another tree and do this.

]]> By: jeligula http://boingboing.net/2010/01/06/launching-a-christma.html#comment-680576 jeligula Wed, 30 Nov -0001 00:00:00 +0000 #comment-680576 Brilliant doesn't begin to describe this. These guys launched a tree!!! Kudos, it was awesome. Brilliant doesn’t begin to describe this. These guys launched a tree!!! Kudos, it was awesome.

]]> By: AndrDrew http://boingboing.net/2010/01/06/launching-a-christma.html#comment-680837 AndrDrew Wed, 30 Nov -0001 00:00:00 +0000 #comment-680837 Oh Tannenbomb, indeed! Oh Tannenbomb, indeed!

]]> By: Anonymous http://boingboing.net/2010/01/06/launching-a-christma.html#comment-680862 Anonymous Wed, 30 Nov -0001 00:00:00 +0000 #comment-680862 That was great! Good to know fine American education is not wasted. What's next? Pumpkins. Yeah! That was great! Good to know fine American education is not wasted. What’s next? Pumpkins. Yeah!

]]> By: Stefan Jones http://boingboing.net/2010/01/06/launching-a-christma.html#comment-681119 Stefan Jones Wed, 30 Nov -0001 00:00:00 +0000 #comment-681119 @Loren: Normal booster motors don't have a forward bulkhead. When they expend the last of their fuel the flame front sprays sparks and hot gas forward. This is what ignites the upper stage, and it looks like an ejection charge. Not taking this into account is a huge fire hazard. Especially with all that dry grass. Estes sells "plugged" motors with a forward bulkhead that would have avoided this problem. They're normally used in R/C boost gliders. @Loren:

Normal booster motors don’t have a forward bulkhead. When they expend the last of their fuel the flame front sprays sparks and hot gas forward. This is what ignites the upper stage, and it looks like an ejection charge.

Not taking this into account is a huge fire hazard. Especially with all that dry grass.

Estes sells “plugged” motors with a forward bulkhead that would have avoided this problem. They’re normally used in R/C boost gliders.

]]> By: elizo http://boingboing.net/2010/01/06/launching-a-christma.html#comment-680612 elizo Wed, 30 Nov -0001 00:00:00 +0000 #comment-680612 Twistedly wonderful! I love it! Twistedly wonderful! I love it!

]]> By: Anonymous http://boingboing.net/2010/01/06/launching-a-christma.html#comment-687272 Anonymous Wed, 30 Nov -0001 00:00:00 +0000 #comment-687272 We've been doing this for the past couple of years. Here is the video with a homemade J motor in Jan 2008. http://www.mdra-archive.org/photos/ESL116/BobUtley/Full/JChristmasTree.wmv Here is the video of our club making it an annual event in Jan 2009. http://www.mdra-archive.org/photos/ESL128/BobUtley/Full/xmastreedragrace.wmv Enjoy! We’ve been doing this for the past couple of years.
Here is the video with a homemade J motor in Jan 2008.
http://www.mdra-archive.org/photos/ESL116/BobUtley/Full/JChristmasTree.wmv

Here is the video of our club making it an annual event in Jan 2009.
http://www.mdra-archive.org/photos/ESL128/BobUtley/Full/xmastreedragrace.wmv
Enjoy!

]]> By: alttsunami13 http://boingboing.net/2010/01/06/launching-a-christma.html#comment-680876 alttsunami13 Wed, 30 Nov -0001 00:00:00 +0000 #comment-680876 Next time 64 ENGINES!!!!! <evil laugh> Next time 64 ENGINES!!!!!

]]> By: Anonymous http://boingboing.net/2010/01/06/launching-a-christma.html#comment-680644 Anonymous Wed, 30 Nov -0001 00:00:00 +0000 #comment-680644 Heh. Paging Larry Niven... but this isn't quite what he meant by stage trees. Heh. Paging Larry Niven… but this isn’t quite what he meant by stage trees.

]]> By: Daemon http://boingboing.net/2010/01/06/launching-a-christma.html#comment-680658 Daemon Wed, 30 Nov -0001 00:00:00 +0000 #comment-680658 Hmm. How many of those do you need to launch a VWBug? Hmm. How many of those do you need to launch a VWBug?

]]> By: Stefan Jones http://boingboing.net/2010/01/06/launching-a-christma.html#comment-680663 Stefan Jones Wed, 30 Nov -0001 00:00:00 +0000 #comment-680663 Large? Fah! I was expecting 32 Aerotech K550s and a suborbital attempt. But seriously, getting more than a dozen motors to ignite simultaneously is always a feat. Large? Fah! I was expecting 32 Aerotech K550s and a suborbital attempt.

But seriously, getting more than a dozen motors to ignite simultaneously is always a feat.

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