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I have a power supply which needs to operate on two separate 110v breakers, or on one 220v breaker. I don't want to have a cord running across the room, so I decided to use a 220v right near the supply. Now all I need to find is the correct outlet to match the cord type, since it is not...

I have a 54MM 3800NS L motor being listed on Rocketry Planet in the propulsion auctions. The auction will begin later this afternoon. It is professionally hard anodized gray, with all components including nozzle, and is 40" long. It is new and unused. Price is $190 shipped.

So, who here plays with night vision? It is, hands down, my favorite toy. Here is what I put together last week. Two PVS-14 gen 3+ monoculars bolted together to make a binocular with quick detach. The twin intensifier tubes are auto-gated thin-film Omni 7 Pinnacle type with manual gain...

I would like to cool a container of water using a refrigerant system. The water which is in the container will then be pumped through computer components like the motherboard, CPU, and GPUs. You can purchase refrigerant cooling systems specifically for the CPU only, which do not involve any...

I need to find a bolt with circular knurled head, and with a short stud threaded in 1/4x20. It is the same type of bolt thread standard on the bottom of a camera or some spotting scopes. The bolt is being used to hold an optical device to an aluminum plate, and the only requirement is that...

I am looking for a wireless video system which can transmit a decent looking video signal around 1200-1500 yards, outdoors. The camera would be at ground level, not in the air. I figured that some folks around here would probably be the ones with wireless transmitter experience and knowing of...

Some fellows over on one of the firearm forums I belong to were discussing ringed projectiles. The projectiles sounded interesting because of the lowered frontal area they have, but there was some skepticism as to what happens when supersonic air flows through a tube. The question was if it...

Being the kind of people who like energetic, propellant burning, fast traveling toys that make noise, how many of you here are active firearm addicts like myself? What do you have or like a lot in your collection? I have too many to name them all without leaving my chair, but as of lately...

What is someone supposed to do with all of their reloads which are now "hazardous explosives"? Are they grandfathered to their owners without LEUPs? Or is the owner simply now a criminal with them in possesion?

Change is...good? Rocketry Online's auctions seem to have died and dried up. Anybody still use this place anymore? Or did it simply lose its interest? I noticed when they made their format change, unconciously I stopped using the place I had learned to like so much. I returned to see that...

I haven't looked at hardware prices for many months, maybe about a year now until today. I don't know if I am just losing it and thought wrong, but my curiousity bugs to know. Have Aerotech-compatible hardware prices shot up in the last year? I thought I remember being able to buy a brand...

I have had mixed luck using the rubber shrink sleeve to make carbon tubing. Some of my tubes are perfect, while some end up with nasty looking weaves that I just throw out. The shrink tubing sometimes grabs the carbon sleeve and stretches or distorts its alignment. Could someone give...

Does anyone produce a 54mm Nike Smoke nosecone? Thanks.

Does anyone know where I can find any videos of the larger WARP-9 motors? I haven't been able to see any in person yet, and I'd really like to get an idea of what they look like in a small rocket leaving the pad. If it is even possible to catch one on video that is! I'm trying to decide if...

Does anyone know where to find decent sized pieces of quality carbon fiber plate? I can't seem to find anything larger than 1.5mm thickness as small squares. I am looking for a piece about 10x32" at 3mm, 3.5mm, or possibly 4mm thickness. Thanks. ;)

I always wondered how some nuclear material is transported. Here is an interesting video of nuclear flasks being tested. These things are heavy, really heavy. I figured the rocket power in the vid would warrant it here. ;) <object width="425" height="350"><param name="movie"...

I was thinking about having some 3mm carbon fiber plate cut, but am not sure how expensive this might be to have done on a waterjet. The pattern wouldn't be too complex; it is for an on-road RC vehicle chassis. Does anyone use any waterjet cutting services for the like? If you could recommend...

I have an RRC2x used once, in perfect condition. $75 shipped in the U.S. Would prefer Paypal but not a must. - - - - S O L D - - - - -

I have wanted a helicopter for some time, so I finally researched a bit and made my first purchase on a beginner heli. I went with an Esky Honeybee King 2 which is an electric 6-channel w/ CCPM. These things are the most fun I have had in a long time! After about 7 battery packs, I...

I found this video on Youtube. Figured you guys would enjoy it since it's about as close to a rocket as a plane comes. Man this thing is fast: https://www.youtube.com/watch?v=hSRYHHgIfR4&NR=1