Log in

No account? Create an account
May 3rd, 2012
02:51 pm


Previous Entry Share Flag Next Entry
Rocket launch
A couple of weeks ago my model rocket club held a regional contest. One of the events was G Eggloft Altitude with altimeters. Now, usually we measure the altitude of a rocket using trackers or theodilites and reduce the angles measured with trigonometry (Science!) to get the altitude. This time we were using little electronic altimeters that record the maximum altitude and read it out in flashes, beeps, or LCD displays.

This works fine as long as your rocket doesn't land in the lake.

G Altimeter Egglofter

My rocket eventually floated close enough to the shore to be rescued. Unfortunatly water got to the altimeters and wrecked them. At least the egg survived so Bumbling Brothers Flying Circus got flight points.

Back to the laboratory!

Current Mood: disappointeddisappointed

(4 comments | Leave a comment)

[User Picture]
Date:May 3rd, 2012 07:38 pm (UTC)
What a shame!

And I suppose the altimeter works on air pressure so you can't even put it in a plastic bag.

I wonder if a gore-tex bag would work...
[User Picture]
Date:May 3rd, 2012 08:05 pm (UTC)
Actually, I suppose a slack plastic bag would probably transmit pressure with no problem.
[User Picture]
Date:May 3rd, 2012 08:45 pm (UTC)
Oh. Hmm. I think you're right about that.

And the water pressure won't matter because it's the *lowest* pressure readout you're interested in.

Maybe that's worth trying?
[User Picture]
Date:May 3rd, 2012 11:02 pm (UTC)
Oh, forgot to log in. That was me.
Powered by LiveJournal.com