Tuesday, February 7, 2012

Hooray for Delay

Good afternoon!
    In my last post I was complaining about some mistakes I made making my rocket.  It mainly had to do with the weight causing it to take a high initial thrust motor to reach stable velocity before leaving the launch rail.  Good News!
    The launch was canceled due to rain.  I normally would be very sad, except that provided me with the opportunity to order an H400 VMAX motor, which will allow my rocket to reach stable velocity at around 14 inches.  The duration of thrust is about .68 seconds, which is about half the old motor.  This should allow my certification flight to go well!  An added bonus, I was able to spend the Saturday laying on my balcony penthouse in the rain.
    I also took advantage of this delay by ordering a sonic locator for my rocket.  I make millions in the fish markets every year, but I am still not one for wasting a 200 dollar rocket.  The estimated apogee, furthest distance from the earth, is around 3000 feet.  Then the parachute deploys and it drifts safely back to earth.  The sonic locator will activate at apogee (light sensor) and will screech loudly until the battery is taken out.  Hopefully this will aid in recovery if the rocket were to drift too far from the launch site.  Felines are not ones for wandering around unknown brush looking for rockets.

This is what the sonic locator looks like!


    Hopefully the Zombie can withstand the forces that this motor will put on it! a great test for the rocket to see if it can withstand the J motor I am going to fly it with next.  I already bought the 6-grain case.  Here's a comparison of the 6-grain case with the 2-grain case the H400 is in.

The second from the left is the 2-grain case.  The second from the right is the 6-grain ca

Hopefully that increased force doesn't do this to the Zombie...

The motor used in the video above is the lower impulse motor that I'm going to use first for my certification flight.

 Hopefully it looks a little more like this...

Until next time, "Meow."

-Aerolite


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