Hi guys, I notice that there hasn't been a lot of activity on this group for a while, but I do have some questions that I would really appreciate being...
Properly built microhybrids work very well. They are a bit heavy for the thrust generated but they work well. I am launching on a regular basis. Ejection of...
... I do not know what the legal situation is for you but here in Canada (And the US) the problem is not that you need any kind of license to buy/use black...
Thanks for the response. My understanding is that simply buying black powder in Australia requires a license. Assuming you can get black powder, can you...
... That's right. I'm informed by the guys in NSW Rocketry Association that do HP that you can get the ingredients to make igniters together and make them...
An alternative to black powder is a spring and a burn through fuse round holding strap. Electric altimeter or g- force devices can also be used to trigger...
I had thought about using the spring initially, as this is what I use for water rockets. This was actually what prompted my question about actually flying a...
I'm making progress on my 16gm motor and have now reached the point of trying to pressurise against the burst diaphram. My problem is that the gas leaks back...
Well on mine I simply have a small o-ring around the piercing unit. When pressure from the bolt forces the cartridge down on the piercer the o-ring is...
Kisag compatible push-valve cream chargers The push valve (speed load system) whipped cream chargers are Kisag compatible and have a white tip and a safety...
The product I am talking about is not sold on the website you linked to and price was NOT what my post was about. United Products the ONLY people who make push...
I used a steel piercer in my original experiments a few years ago, threaded into aluminium. When I went back to it it was not only rusted but it seemed to have...
... "A steel piercer would rust very easily. Brass can corrode, but not as readily as steel." Ah! Of course. Why not use stainless then? Just because of the ...
Hi Gary, ... Very fiddly. I'm on my fifth or sixth attempt for a 16gm version. I've finally got pressure sorted okay after the piercing. It is necessary to...
... To paraphrase Mrs Beatons recipe for ox tailed soup "first, catch your ox" Obviously, you need a lathe! What I do is put a brass rod in the lathe and...
Hey Nev thanks! This is what I was looking for. Comments inline... ... ox" ... ************************************** Nothing obvious about it. I have built...
http://tinyurl.com/az927m See? No cone at all just an O-ring. This is from Wil's 16 gram minihybrid but it looks exactly the same as Clderas, Hicks etc....
... You are obviously better at metalwork than I ever was! ... It isn't critical- just to give me a conical groove. I think it is about a 6mm or bigger ... ...
Okay, my MH arrived in the mail toady from Eclipse. Sure enough, the piercer is conical, much like my larger one for the bigger motor. Gary, your link is the...
... Actually, the image linked is a piering injector, it is not designed for push pin type NOX cylinders. Tee conical design is such that it will pierce the...
Wow! It sure looks like my push valve actuator. I suppose this piercer was designed such that it doesn't need any o-ring between the piercer and the whippit....
Hi all, Well, my new motor has arrived, and I've got a few boxes of 9gm chargers. My MAD has also arrived, and I've modified an airframe to take it all. Now...
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