barstoolmike
Well-Known Member
- Joined
- Mar 4, 2009
- Messages
- 300
- Reaction score
- 6
Got my Performance Rocketry Gizmo from Wildmans Black Friday sale last December and finally finished and launched it yesterday. PR makes a great kit and everything fit very nicely. I tend to "over build" my rockets so with the nose weight for stability, lots of epoxy, all the recovery gear, and foam fill nose cone it came in a bit heavier (7.25lbs) than the advertised weight of 3 lbs. I flew it on a Aerotech I357 and it worked great. Open Rocket simmed the apogee at 8 seconds so I shortened the 10 sec. delay a couple seconds which was a mistake. The chute deployed way too early so it ddidn't reach the predicted altitude of 1122ft and only went about 800 ft. All in all, this is a great kit and has become the new "favorite" rocket in my fleet. View attachment 50824 The video of the flight can be seen here--[YOUTUBE]qRPLU2jH_sI[/YOUTUBE]
VERY NICE PICTURE. Ya got the USA flag,big ass rocket and the number 7. What else could ya want.SWEET!!!!!!!!!CTI DEMO L1350CS
[YOUTUBE]UnRwS944y9g[/YOUTUBE]
Got my Performance Rocketry Gizmo from Wildmans Black Friday sale last December and finally finished and launched it yesterday. PR makes a great kit and everything fit very nicely. I tend to "over build" my rockets so with the nose weight for stability, lots of epoxy, all the recovery gear, and foam fill nose cone it came in a bit heavier (7.25lbs) than the advertised weight of 3 lbs. I flew it on a Aerotech I357 and it worked great. Open Rocket simmed the apogee at 8 seconds so I shortened the 10 sec. delay a couple seconds which was a mistake. The chute deployed way too early so it ddidn't reach the predicted altitude of 1122ft and only went about 800 ft. All in all, this is a great kit and has become the new "favorite" rocket in my fleet. View attachment 50824 The video of the flight can be seen here--[YOUTUBE]qRPLU2jH_sI[/YOUTUBE]
I thought I had already put this in here but here is my Gizmo. It will by flying on a CTI J250 Skidmark at Red Glare XII for my L2 cert. With single-deploy motor ejection it looks like it is going to be a long walk to recover this one using a 48" top flight chute.
Swallow your food or drink now cause you might choke when see the pictures of my latest design follie. It started as a Performance Rocketry Gizmo but has morphed into what you see below. It was an attempt to make a rocket without epoxy, use a wide range of motors and run outboards.
Everything is screwed together onto three spiders. The spiders center the motor tube, align the fins, hold the electronics bay sleds and secure the body tube.
Its big, draggy and weighs more than it has too but, it was a proof of concept attempt that taught me alot about machining tolerances and thinking things through beyond just an image in my head.
The excess design flab forced the addition of a 24 inch section of body tube and a pound of lead in the nosecone. Sims says she is stable from the little one grain CTI I445 all the way to the six grain monsters that have an ejection charge. The three 29mm outboards are gravy and will be ignited after the central motor is well on its way. They can also be easily removed for less aggressive flight profiles.
This rocket is 180 degrees apart from my Accelerator v1.1 design.
They both should be fun to launch. LDRS31 or bust!
The timer bay...
The buzzer bay...
The altimeter bay...
The hard point anchors and ARRD...
The business end with outboard terminals, screw, slide, and pull pin switches...
The unpainted rocket...
I am such an underachiever :bangpan:
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