Search found 2303 matches

by OverTheTop
Wed Jun 21, 2017 4:22 pm
Forum: Mid/High Powered Rocketry
Topic: Fins - Katana 4
Replies: 2
Views: 54

Re: Fins - Katana 4

Split-fin designs are usually just for good looks. They do take a bit more work when making the fincan, and aerodynamically they are a little more drag. Open Rocket or RockSim should both do a reasonable job of simulating the flight. I use RS and it is usually quite close for my Velociraptor which h...
by OverTheTop
Wed Jun 21, 2017 12:12 pm
Forum: News & Events
Topic: Chinese satellite in wrong orbit
Replies: 3
Views: 62

Re: Chinese satellite in wrong orbit

Stage 3 anomaly I believe. Short and in the wrong inclination. Sounds like someone stuffed the coordinates. Not likely. Too short burn on S3 would have the required effect. Inclination can be corrected (and indeed normally needs to be as most GEO satellites are not launched from the equator) by an a...
by OverTheTop
Tue Jun 20, 2017 7:46 pm
Forum: Scratch Built
Topic: Full Scale Patriot PAC-1 Missile
Replies: 165
Views: 7395

Re: Full Scale Patriot PAC-1 Missile

Keg for scale? :D
by OverTheTop
Mon Jun 19, 2017 7:08 pm
Forum: News & Events
Topic: Who bought Gorilla Motors?
Replies: 28
Views: 409

Re: Who bought Gorilla Motors?

Regulations are a requirement for commercial motors. We don't buy research motors. Regulations are what keeps us safe with things like cars, electronic equipment, buildings, and lots of other stuff. Regulations are usually introduced because somebody has cut corners in the past and caused bad outcom...
by OverTheTop
Mon Jun 19, 2017 5:41 pm
Forum: News & Events
Topic: Who bought Gorilla Motors?
Replies: 28
Views: 409

Re: Who bought Gorilla Motors?

There might be a requirement in the regulations to that requires those changes be reported, but it was handled in a very peremptory way.
by OverTheTop
Mon Jun 19, 2017 7:24 am
Forum: Rocketry Control Room
Topic: SpaceX BulgariaSat-1 Launch
Replies: 2
Views: 80

Re: SpaceX BulgariaSat-1 Launch

Launch Delayed SpaceX has pushed back the liftoff of a Bulgarian television broadcast satellite on the company’s second previously-flown Falcon 9 rocket until at least Friday, giving ground crews time to replace a valve on the launcher inside a hangar at its Florida launch pad. The company announce...
by OverTheTop
Sun Jun 18, 2017 6:38 pm
Forum: How's the Weather..?
Topic: Happy Birthday "Sumo310"
Replies: 5
Views: 81

Re: Happy Birthday "Sumo310"

Happy Birthday to you... :)
by OverTheTop
Sun Jun 18, 2017 4:26 pm
Forum: Rocketry Control Room
Topic: SpaceX BulgariaSat-1 Launch
Replies: 2
Views: 80

Re: SpaceX BulgariaSat-1 Launch

BulgariaSat-1 Webcast here:
by OverTheTop
Sat Jun 17, 2017 4:49 pm
Forum: Queensland Rocketry Society
Topic: 21st May 2017 Launch
Replies: 6
Views: 235

Re: 21st May 2017 Launch

Welcome to HPR Jim :)
by OverTheTop
Fri Jun 16, 2017 12:54 pm
Forum: Scratch Built
Topic: Airframe choices (or why you should consider rolling your own airframes)
Replies: 6
Views: 194

Re: Airframe choices (or why you should consider rolling your own airframes)

Nice job. Rolling your own airframe is a great thing to do to optimise it for your application.

I have made the decision to just buy airframes as I have so little time to do the projects I want to do anyway. It is the only thing that makes sense to me in my situation.
by OverTheTop
Thu Jun 15, 2017 5:25 pm
Forum: Rocketry Control Room
Topic: SpaceX BulgariaSat-1 Launch
Replies: 2
Views: 80

SpaceX BulgariaSat-1 Launch

SpaceX BulgariaSat-1 Launch Spaceflightnow.com SpaceX's eighth mission of 2017 will launch Bulgaria's first geostationary communications satellite into a Geostationary Transfer Orbit (GTO). With previous satellites based on the SSL-1300 bus massing around 4,000 kg, a first stage landing downrange o...
by OverTheTop
Tue Jun 13, 2017 4:57 pm
Forum: How's the Weather..?
Topic: LEGO Saturn V announced.
Replies: 15
Views: 396

Re: LEGO Saturn V announced.

At my work desk. There is a 1:6 Nike Apache out of the pic as well :)
by OverTheTop
Tue Jun 13, 2017 10:19 am
Forum: How's the Weather..?
Topic: LEGO Saturn V announced.
Replies: 15
Views: 396

Re: LEGO Saturn V announced.

Done :)

SVsmall.jpg
by OverTheTop
Mon Jun 12, 2017 6:24 pm
Forum: How's the Weather..?
Topic: LEGO Saturn V announced.
Replies: 15
Views: 396

Re: LEGO Saturn V announced.

Completed. Pics to follow :)
by OverTheTop
Mon Jun 12, 2017 9:52 am
Forum: Propulsion
Topic: Pulsejets
Replies: 4
Views: 143

Re: Pulsejets

The V1 "buzzbomb" was the pulsejet. Have a look at pulse-jet go-karts if you are interested. If you want to see something really scary look up steam-powered go-karts :shock: The V2 is a fully-fledged liquid fueled rocket engine, running on alcohol (plus some water to keep the temperatures ...

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