My Son's Space Derby

Anything related to Space Derby racing and event coordination.
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Gavin
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My Son's Space Derby

Post by Gavin »

My son’s Pack had their Space Derby today. It started off to be a fiasco for us. I put the propeller on backwards (I went and checked and the instructions aren’t clear on this at all). Then, one of the other leaders bumped my son’s line before the start of a race and the propeller ended up “beating” again the dow rod for a few turns; it broke the propeller in half :shock: . Additionally, I grabbed the wrong rubber bands from our house (they were waaaaay too big). So, we had to use “Extra” rubber bands at the Derby and they turned out to be waaaay to thick to be of any value. They kept popped off when we wound my son’s space ship. His ship ended up traveling 2 inches and stopping off the start on his first heat :oops: . Anyway, I found 3 “correct” rubber bands from a spare kit and was able to fix his ship up right for the second round. Garrett went on to not lose a heat after that and he won the Pack Championship. I was quite surprised. :D

The key simply turned out to be making a very light ship. No one else’s ship was nearly as light. Ours was shaped like a cigar and probably wasn’t much more than an 1/8th of an inch thick at its’ thickest part.
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TurtlePowered
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Re: My Son's Space Derby

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Gavin wrote:My son’s Pack had their Space Derby today. It started off to be a fiasco for us. I put the propeller on backwards (I went and checked and the instructions aren’t clear on this at all). Then, one of the other leaders bumped my son’s line before the start of a race and the propeller ended up “beating” again the dow rod for a few turns; it broke the propeller in half :shock: . Additionally, I grabbed the wrong rubber bands from our house (they were waaaaay too big). So, we had to use “Extra” rubber bands at the Derby and they turned out to be waaaay to thick to be of any value. They kept popped off when we wound my son’s space ship. His ship ended up traveling 2 inches and stopping off the start on his first heat :oops: . Anyway, I found 3 “correct” rubber bands from a spare kit and was able to fix his ship up right for the second round. Garrett went on to not lose a heat after that and he won the Pack Championship. I was quite surprised. :D

You are absolutly correct as far as the propellor instructions being vague at best, bad at worst. The first time we made one, my son and I pondered over that for at least a half hour before putting the rounded end next to the plane.
We thinned down our derby plane this past year from the previous one but we didn't want to go to thin because our first year had the derby planes smashing into the line holders with very insufficiant padding. We did get around 5th or so out of 14 or so, losing to the champ once in the double elimination tournament.


The key simply turned out to be making a very light ship. No one else’s ship was nearly as light. Ours was shaped like a cigar and probably wasn’t much more than an 1/8th of an inch thick at its’ thickest part.
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Da Graphite Kid
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Re: My Son's Space Derby

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...not sure if TurtlePowered had a point there or not...

Gavin, congrats to you and your son. Any chance we could see a picture?


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Gavin Chafin
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Re: My Son's Space Derby

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Gavin, congrats to you and your son. Any chance we could see a picture?


Come to think of it, I never got a picture. I think I have one picture left on my last roll of film. I'll take a picture shortly. But, it's nothing to marvel at; it's just really thin, that's all. One important note is that the rocket was thin enough that the hanger protruded rather nicely into the hole inside of the ship (enough that it would significantly interfere with the spinning of the rubber bands). I had enough foresight to cut the bottom of the hangar so it wasn't protruding into the inside of the ship. When we were having our initial problems with the overly thick rubber bands popping off of the hook, one of the officials proudly and quickly pointed out that we were having our problem because we made the ship too thin. I said, "Uh...All of the ships have the same size hole on the inside. That has nothing to do with it." Then he said, "Yeah, but the bottom of your hangar must be protruding into the ship and it's interfering with the rubber bands." I said, "No...I cut off the bottom of the hanger. It doesn't touch the inside of the ship at all." Then he shrugged his shoulders and walked away.

Also, a lot of the ships were losing their hangars and fins. We epoxied everything on and didn't have any problems. Especially with the ship as thin as it was, I made sure we used a good amount of Epoxy to hold the hangar on. Epoxy is da bomb.

Also of note, I did ever-so-slightly angle the fins upwards so that the aerodynamics kept the back end up in the air (at least theoretically). I’m not sure if this made any difference and I’m sure it wasn’t as significant as shaving the rocket very thin.
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TurtlePowered
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Re: My Son's Space Derby

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Gavin Chafin wrote:
Gavin, congrats to you and your son. Any chance we could see a picture?


Also, a lot of the ships were losing their hangars and fins. We epoxied everything on and didn't have any problems. Especially with the ship as thin as it was, I made sure we used a good amount of Epoxy to hold the hangar on. Epoxy is da bomb.
Epoxy was a good idea for the hanger. We used Elmers Wood glue one year and it worked and one year the hanger fell off. Some airplane glue kept it on the rest of the compitition.
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