Rocketry
TRAAU 3rd October 2010 Print E-mail
Tuesday, 09 November 2010 10:07
A chilly & overcast day greeted us at Serpentine for the October 3 launch. Lots of rockets went up and some of them even came back down! One of the exceptions to this was Karl's "Captain America"

Karl's 'Captain America'
Click to Embiggen

The rocket screamed off the pad and all but disappeared. All eyes were on the sky for this impressive launch but no recovery event was seen. A good deal of searching failed to turn anything up. Karl posted a few "Lost Rocket" posters around the area and two weeks later it was recovered by a farmer. The parachute had failed to deploy and the hard earth ensured that virtually nothing was left. The RMS case was recovered in flyable condition.

With other projects keeping me busy over the last few months, I haven't built anything new to fly, so I pulled out my ever faithful Estes Big Daddy. Painted taxi cab yellow (complete with black check). I put this up on an F for a great flight

Sascha's Big Daddy (2nd flight for the day)
Click to Embiggen

See the photos of the day on my Flickr stream.
 
Acrylic V2 Rocket Business Card Print E-mail
Wednesday, 22 September 2010 08:45
In a shameless effort to promote the I Build Rockets website, I came up with this nifty little V2 rocket that slots together. You can download and make your own from Thingiverse www.thingiverse.com/thing:4084

I Build Rockets - V2 Rocket Business Card
 
I Build Rockets - Laser Cut Sign Print E-mail
Wednesday, 22 September 2010 08:42
Since Cathy is both an engraver and cutter, I thought I should give it a go engraving and cutting. Layout done in CorelDraw, engraved and cut from a slab of 8mm Acrylic. Very happy with the way this turned out!

I Build Rockets - Engraved Plaque
 
Laser Cut 13mm & 18mm Rocket Stands Print E-mail
Wednesday, 22 September 2010 08:29
Since the arrival of Cathy - my laser cutter (Yes, it has a name, thanks to Mike!) I've been designing new and exciting things. Well, rocket stands at least!

18mm & 13mm Rocket Display Stands
13mm & 18mm Rocket Stands


You can download and make your own from Thingiverse www.thingiverse.com/thing:4139
 
I Build Rockets Official Merchandise Print E-mail
Thursday, 19 August 2010 07:10
Official I Build Rockets merchandise is now available on CafePress.

Image

I Build Rockets - CafePress
 
Orbital Decay - Final test launch Print E-mail
Tuesday, 27 July 2010 10:11
After months of designing, building, testing, redesigning, rebuilding, testing, painting and more testing, the Orbital Decay had it's final test launch. My original plan was to design a good solid transition rocket. Something that you can build and fly on Mid-power but also solid and stable enough to fly it for a L1 certification flight.

This weekend's flight was on an Aerotech RMS H128 motor. The wind was blowing but not enough to cancel the day and while smaller rockets were suffering, the Orbital Decay punched a hole in the sky. Now the work begins on production.

Orbital Decay Prototype 2 - H128-M
Click to embiggen

 
SLAM Missile Launch Print E-mail
Tuesday, 27 July 2010 09:40
I presented my scratch-built SLAM Missile to the RSO at the Tripoli launch this weekend. "Where's the sim on this?" was the first question (I was armed with a printout from Rocksim) and "Where's the CP?" was the 2nd (I had marked the CP!). Lots of frowning, but it was stable. "That's going to do a loop!" but I was approved to fly it as a "head's up" launch...

The time came to press the launch button - money was changing hands at a furious pace 'How many loops will this do before it plows into the ground?'

SLAM Missile - E9-4
Click to embiggen

But all went well - in fact, it was a flawless flight! Rocksim predected 1,000' on the E9. It had a good majestic boost and then coasted to apogee. The 4 second delay was perfect and recovered no more than 300' from the launch pads.
 
TRAAU 25th July 2010 Print E-mail
Tuesday, 27 July 2010 00:01
Despite the bitter cold of Melbourne's Winter, Sunday's Tripoli launch at Serpentine was a huge success! By the end of the day, 15 flyers had launched 17 rockets between them with most returning to Earth in the same condition that they left.

Karl had a super flight to achieve his Level 2 certification and received the appropriate 'Ooohs' and 'Aahhhs' from the crowd that had gathered to watch.

Karl's Level 2 Flight
Karl's L2 Launch - Click to embiggen


A new Tripoli member, Tim, had three good launches. His upscale Yankee popped a fin upon landing but his upscale 4" scratch-built Goblin put in a superb performance and came down unscathed.

Tim's Goblin
Tim's Goblin - Click to embiggen
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Orbital Decay - Prototype 2 Print E-mail
Friday, 23 July 2010 08:57
Orbital Decay - Prototype 2 Painted


Work has been progressing on the Orbital Decay. It's now painted and ready for it's final trial flight. More information can be found in previous posts here and here
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SLAM Missile - Scratch Build Print E-mail
Friday, 23 July 2010 08:42
Scratch-Built SLAM MissileScratch-Built SLAM MissileThis is Rocket Science SLAM MissileSome time ago, I read an article on This is Rocket Science. It talked about a crazy nuclear powered rocket and was illustrated with the image to the right:

Back in the mid 1950's, nuclear powered cruise missiles were being studied and in 1957, development was initiated as Project Pluto. The reactor for the missile was to be developed by the Lawrence Radiation Laboratory, with the ramjet being built by Marquadt. Ling-Temco-Vought was awarded the contract to develop the airframe for the missile itself, which was known as SLAM (Supersonic Low-Altitude Missile).
Read more at This is Rocket Science
(Image and text used with permission)

And I thought to myself (and anyone else in ear-shot at the time) that I had to have a go at building one!

I built this up in Rocksim. It seems stable and an E9 should push it to about 1,000' and an F21 to about 1,900'

If the weather is on our side this weekend, it should get a launch!
Read more...
 
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