Author Topic: Ellwood Toffee Rocket  (Read 5548 times)

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Offline Ellwood

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Ellwood Toffee Rocket
« on: September 06, 2013, 04:43:41 AM »
Hi, Ive been developing this rocket sled for two and a half years, had her started a few times, but never actually driven her. Next weekend is time to start her, and hoping for some real thrust ( quite a few mods since last time, and now i got sponsored with a 10 KG tube of NOS). Sofie runs on toffee, which when on fire, just loves a good squirt of laughing gas ( NOS).





So heres hoping that all runs well, and she can then be garaged until Feb 2014 Speedweekend on Ice in Orsa Sweden

Offline manta22

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Re: Ellwood Toffee Rocket
« Reply #1 on: September 06, 2013, 12:37:24 PM »
Be sure to post videos of your run, Ellwood. Interesting project.

Regards, Neil
Regards, Neil  Tucson, AZ

Offline mitchell968

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Re: Ellwood Toffee Rocket
« Reply #2 on: September 06, 2013, 11:45:04 PM »
very kool . i ve modded some sleds but , not like that.  and toffee ? are you kidding ? can you use the cheap stuff , like a heath bar , or do you have to use that fancy toffee from sweden  ?  please keep us posted.     thanks              mitchell

Offline Ellwood

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Re: Ellwood Toffee Rocket
« Reply #3 on: September 07, 2013, 06:19:02 AM »
I shall fix videos. I brew my own toffee, last batch was 2 gallons.

Here is an old video so you get some idea of the project.  http://www.youtube.com/watch?v=HOxmGSktMhQ

Offline Ellwood

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Re: Ellwood Toffee Rocket
« Reply #4 on: September 15, 2013, 02:20:29 PM »
One video tells a thousand words! zoom forward to the explosion at 10 minutes. Carnage ! I dont think my toffee rocket is gonna make next speedweekend now.

http://www.youtube.com/watch?v=JT15dJ2ozUw&feature=youtu.be

Offline saltwheels262

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Re: Ellwood Toffee Rocket
« Reply #5 on: September 15, 2013, 03:14:08 PM »
that's a dam shame.
lucky that no one was hurt.
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Offline Mobacken Racing

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Re: Ellwood Toffee Rocket
« Reply #6 on: September 15, 2013, 03:41:04 PM »
You should use a different fuel, sugar based fuels are extremely dangerous since they tend to clog up the nozzle and turn the rocket into a bomb just like in the video just posted.

Oil soaked cardboard is suitable since it is cheap, easy to "refuel" between each run and has a high energy density.

Offline desotoman

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Re: Ellwood Toffee Rocket
« Reply #7 on: September 15, 2013, 04:52:15 PM »
Ellwood,

Here are some still pictures of your video.

Tom G.
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Offline grumm441

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Re: Ellwood Toffee Rocket
« Reply #8 on: September 15, 2013, 06:02:45 PM »
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Offline Ellwood

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Re: Ellwood Toffee Rocket
« Reply #9 on: September 17, 2013, 01:46:01 PM »

Offline desotoman

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Re: Ellwood Toffee Rocket
« Reply #10 on: September 17, 2013, 04:55:09 PM »
Ellwood,

I noticed that you started backing up from the rocket just before the fireworks. Did you feel something was going wrong?

Tom G.
I love the USA. How much longer will we be a free nation?

Asking questions is one's only way of getting answers.

The rational person lets verified facts form or modify his opinion.  The ideologue ignores verified facts which don't fit his preconceived opinions.

Offline Geo

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Re: Ellwood Toffee Rocket
« Reply #11 on: September 17, 2013, 05:25:39 PM »
WOW!   :-o  Hope you guys are all OK.

Geo

Offline Ellwood

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Re: Ellwood Toffee Rocket
« Reply #12 on: September 19, 2013, 04:31:44 PM »
Hi, yes, we survived alright. But what a tremendous blast. I made one big mistake by pressing the oxygen button - just thought it might give a bit of boost when my laughing gas ran out ! So i guess we all can learn from this by having protective clothing, fire extinguisher, as few folk involved as possible around the rocket, etc. Toffee is not to be messed with. At least my plan of sinking the whole sled in the trailer was a good idea. I wonder how high it would have flown if it wasnt tied down in the trailer and anchored down to the railway line. It will probably cost me 100 dollars to fix Sofie up again.