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The most recent discussions

Cesaroni motors

May 12, 2020, 5:05 pm

Hello, In the Pro75 6g series, 7455M2150-P and Pro75 6G 8429M2020-P. In the Pro75 3G series, 3727L1050-P and Pro75 3G 3683L851-P. we couldn't find detailed technical drawings of their engines and ... Read more »

Re: Rustoleum wrinkling on 2nd coat!?

April 24, 2020, 12:29 am

Airbrushing might be what's needed...with a Future or similar acrylic floor finish top coat. Read more »

Which HPR Motor Makers are Still in Business

April 21, 2020, 1:59 am

Hello the Group I have been gone from the hobby for about 14 years. Which of the Kosdon type motor manufacturers are still in business? Kosdon Motors died and Aerotech seems to be making reloads f... Read more »


April 14, 2020, 4:12 pm


DTH and Rotary Drill Rig Suppliers

February 23, 2019, 11:53 am

Looking for a company which supply Drill Rigs at affordable cost? Then here you go you are at exact place Focus Mining Services are suppliers of DTH & Rotary Drill Rigs in Both Australia & South ... Read more »

Re: Dr Shantanu Panigrahi - UK's Unsung Hero, Suing 800 Wicked People

February 8, 2019, 3:21 pm

Insanity is a wonderful thing. Yours Truly knows all about it. But you should get back on your meds. Insanely yours, Yours Truly Read more »

Reverse Circulation Bits | RC Bits Manufactured by Focus Mining Services

January 31, 2019, 9:44 am

Focus Mining Services supplies a range of Reverse Circulation Bits (RC bits ) which are designed for optimal performance. We supply RC bits which are s pecially designed for hard formation drilling... Read more »

Focus Mining Services- Wire Line Core Barrels

January 9, 2019, 11:39 am

In Australia & South Africa Focus Mining Services is a leading service prov ider of Mining Products & Wire Line Core Barrels. Various products used for Mining & Blasting are available at Focus Min... Read more »

Manufacturers & Suppliers of Mining Products in Australia & South A...

December 27, 2018, 11:59 am

Focus Mining Services is biggest Mining Services company in Australia & Sou th Africa. We manufacture & Supply all the mining products for Construction Area, Mining Area, & Industrial Areas. We su... Read more »

Blast Hole Drill Rods Suppliers in Australia

December 19, 2018, 11:44 am

Focus Mining Services is largest supplier of Blast Hole Drill Rods in Austr alia and South Africa. Focus Mining is a famous drill rod factory in that r egion. Customer satisfaction is our first aim... Read more »

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The best rated discussions

what did we win in the lawsuit against the atf?

rating: 5
  [ 2 ]

can anyone explain in simple terms what it is that we won in our lawsuit against the ATF? I thought it was that motors are not considered explosives? why do we still nead a permit for easy access 2... Read more »

Smoke tracking.

rating: 5

I am looking for a smoke mixture that I can have the second stage Estes D engine light so I can track the final path of a rocket. It must be low flame so it wouldn't start a fire if the rocket crashe... Read more »

What does over stable do to a rocket

rating: 5

I just downloaded the demo version of Rocksim and all my designs are over stable by a caliber or two or three. What does this really mean. Read more »

Hobbytown USA brand Epoxy

rating: 5

Does anyone use Hobbytown USA brand 30-min epoxy and can say if it's any good or not? I normally use NHP brand but my close-by shops are out of it. I happened to be on the other side of town near the... Read more »

Estes Sweet Vee

rating: 5

Has anyone on this group have experience with the Estes Sweet Vee? Comments, good or bad? Keith Read more »

Gates Brothers Rocketry

rating: 5

Anyone know what happened to the Gates Brothers? I noticed their website was temporarily unavailable ... just wondered what was up. Read more »

[F-FT] Level 1 rocket

rating: 5
  [ 2 3 ]

What recommendations to folks have for a mid-power rocket that could also be used as a Level 1 certification rocket? Any pros/cons of your suggested model would be appreciated. Since NSL is near m... Read more »

Build a Homemade Laboratory Scale

rating: 5

Hi Folks: This post is to announce a new Teleflite publication in eBook format. It will teach you how to make a high precision laboratory scale with simple hobby tools and things you can buy at a h... Read more »

jerry irvine is a lying coward

rating: 5

jerry, did I get your attention? Good. I have a question for you. What was YOUR purpose and intent, when you labeled a 210 pound shipment of rocket motors, as model aircraft parts? Be specific. Read more »

Giant scale B-52--with 8 turbines!

rating: 5

Anybody see this giant scale B-52? Actually has 8 real turbines at about $1500 each! It has a wing span of about 22 feet, and weighs 330 lb fully fueled. Tak... Read more » is a website by engineers for engineers. It is not affiliated with any of manufacturers or vendors discussed here. All logos and trade names are the property of their respective owners.