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Archive for the ‘Rocketry’ Category

3..2..1.. and Success (don’t try this at home kids)

Saturday, September 18th, 2010

After another few failed attempts, and some diagnosis, it was the sealed lead acid battery that wasn’t providing enough power (Amps) to fire the rocket cluster. I tried charging the battery with a car battery charger and that went horribly wrong and smelly, and the plastic case melted on the battery, because my special charger for the seal lead acid battery had also failed.

So I purchased a new sealed lead acid battery and here are the results

Quick disclaimer (don’t try this at home kids), you could get seriously hurt!

This test was to check the rocket mounts were secure to hold in the two rocket motors, before further completing the rocket assembly. You can clearly here the warning tone before firing the rocket motors, both rocket motors ignite simultaneously, the rockets both burn at a constant rate, until the ejection charge which would normally deploy the recovery mechanism, e.g. a parachute is heard.

Looking back at the video, I think there is a slight delay between the rocket motors!

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3..2..1.. and nothing… Umm

Monday, August 30th, 2010

Now that the UK has relaxed it’s Rocketry and Explosives requirements, it’s a little easier to acquire and use rocket motors in the UK, without all the red tape and certificates, and explosives license.

so back to Model Rocketry….

Before I complete the rest of this rocket, I’m testing the motor mounts, before adding fins and painting, it’s very important to ensure that the motor mounts are fixed and glued correctly within the body of the rocket, otherwise the motors when ignited will just seperate from the model rocket body.

Test Number 1. 3..2..1.. and nothing… Umm

Time passes and sometime later that evening….. (it’s getting dark now).

Test Number 2. 3..2..1.. and nothing… Umm

Damn Damn and Fecking Damn!!!

Back to the drawing board, electrical issues maybe……not firing….

Well it’s Rocket Science you know!

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