Search found 1852 matches

by air.command
Fri Mar 17, 2017 7:14 am
Forum: How's the Weather..?
Topic: Happy Birthday "CATO"
Replies: 11
Views: 277

Happy Birthday "CATO"

Hope you have a good one David. Happy Birthday! :D
by air.command
Sat Mar 11, 2017 7:18 pm
Forum: Air Command Water Rockets
Topic: Acoustic Apogee Detector
Replies: 3
Views: 189

Re: Acoustic Apogee Detector

Thanks David and SpaceMan, Be interesting to do side by side comparison with baro and accelerometer data over the flight. That's a good idea, I should have flown the logging altimeter on those flights to see how it compares. I do want to fly it again, but want to refine the algorithm a bit first. I ...
by air.command
Sat Mar 11, 2017 1:20 pm
Forum: Air Command Water Rockets
Topic: Acoustic Apogee Detector
Replies: 3
Views: 189

Acoustic Apogee Detector

Last year we did an experiment where we tried to see if we could detect apogee (for parachute deployment) using only the sound of air rushing past the rocket. Here are the results of those tests: xO-CE7fc4xE Realistically I don't think you would use this in practice as barometric or acceleration bas...
by air.command
Sat Feb 25, 2017 8:29 am
Forum: NSW Rocketry Association
Topic: Next launch day - 25th Feb
Replies: 1
Views: 294

Re: Next launch day - 25th Feb

Unfortunately the 25th Feb launch has also been cancelled due to rain.
by air.command
Tue Feb 07, 2017 12:54 pm
Forum: Scratch Built
Topic: Scratch built X Wing
Replies: 61
Views: 1721

Re: Scratch built X Wing

Great build thread. That's looking really good! :D Do you think the cannon tubes are likely to put a twisting force on the fins when the rocket is at speed? That may not be such a bad thing, it may look like the X wing is in a dog-fight.
by air.command
Mon Feb 06, 2017 1:58 pm
Forum: How's the Weather..?
Topic: Happy birthday Ari
Replies: 18
Views: 692

Re: Happy birthday Ari

Happy birthday Ari! :D
by air.command
Mon Jan 16, 2017 10:29 pm
Forum: Air Command Water Rockets
Topic: Thunda Down Under launch 2015
Replies: 3
Views: 478

Re: Thunda Down Under launch 2015

Awesome photo Jeremy. 8) Thanks for posting. I can totally believe that is flex in the rocket. We have seen this before in our smaller long and skinny rockets made from FTC (Fluorecent Tube Covers). In fact the bend was so bad that it sheared the nosecone off and deployed the parachute during launch...
by air.command
Sun Jan 01, 2017 9:32 am
Forum: How's the Weather..?
Topic: Happy New Year - 2017
Replies: 4
Views: 224

Re: Happy New Year - 2017

Wishing everyone clear blue and windless skies in 2017!
by air.command
Mon Dec 26, 2016 9:21 pm
Forum: Higher, Faster, Further
Topic: Faster? Well, kinda :)
Replies: 11
Views: 294

Re: Faster? Well, kinda :)

Interesting post Nic and Merry Christmas! I too am looking forward to what results you get as I have also recently purchased a 3D printer and started printing with it some deployment mechanism components and camera mounts, I am keen to see where the technology can be used on rockets. Do you think th...
by air.command
Sun Dec 04, 2016 11:42 am
Forum: How's the Weather..?
Topic: Happy birthday Scoop
Replies: 13
Views: 280

Re: Happy birthday Scoop

Happy Birthday Dave! :D

CATO wrote:Sorry, was playing with my train set....


... meanwhile ... CATO re-evaluates his ejection charge in his 1:1 scale train set .... :D

Image
by air.command
Fri Dec 02, 2016 1:43 pm
Forum: How's the Weather..?
Topic: Happy birthday "RocketStar"
Replies: 6
Views: 135

Re: Happy birthday "RocketStar"

Have a great birthday Chris!
by air.command
Fri Oct 28, 2016 10:33 pm
Forum: Melbourne Amateur Rocket Society Inc.
Topic: Welcome to MARS - Melbourne Amateur Rocket Society Inc.
Replies: 28
Views: 1073

Re: Welcome to MARS - Melbourne Amateur Rocket Society Inc.

That's awesome! Lots of work must have gone into making that happen! Congratulations guys.
by air.command
Sun Oct 23, 2016 2:05 pm
Forum: Scratch Built
Topic: L1GHT Shadow
Replies: 19
Views: 655

Re: L1GHT Shadow

Since we weren't able to fly the rocket on the H motor at the last HPR launch, we at least flew it as a water rocket. We're not sure what the upper pressure limit is yet and so we dialed it back a little to 240psi to make sure it didn't blow up before we've had a chance to fly the certification flig...
by air.command
Sun Oct 23, 2016 10:54 am
Forum: Higher, Faster, Further
Topic: F-Motor Record???
Replies: 96
Views: 2884

Re: F-Motor Record???

Also, how difficult is it to program a Stratologger to do something simple like record the flight and deploy the parachute at apogee? I've never worked with electronics before. It's really easy to use the stratologger, and there really is no need to program anything. Straight out of the box it come...
by air.command
Sat Oct 22, 2016 7:53 am
Forum: News & Events
Topic: ESA Exomars
Replies: 12
Views: 650

Re: ESA Exomars

They have now found it using MRO's low res camera: http://spaceflightnow.com/wp-content/uploads/2016/10/Mars_Reconnaissance_Orbiter_view_of_Schiaparelli_landing_site_large.gif " The image from MRO’s context camera shows two new features attributed to the Schiaparelli spacecraft, including a lar...

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