Activity

While we ARE going for a 35K waiver for MHM and Oktoberfest, please be reminded that Research flights cannont exceed 75% of that waiver – meaning 26250′. Personally, I’d like to see us have a standing 25K waiver and a…   Read more»

Mike, should be interesting. I plan on keeping my Research activities at MHM pretty mundane, per James’s recmmendations. This is a showcase weekend, and I gotta agree maybe not the best time to push the envelope with any complex rockets,…   Read more»

Yes, Sponge Bob will fly on a 76mm central M-2515 (9098 Ns) then air start two 54mm K-877 (2280 Ns) and then air starting two more K877’s for a total of 18218 Ns at MHM research day on Sunday. Also…   Read more»

That should get up and MOVE in full throttle. I hope you have tracking 😀

I am working with a few different formulas. But this one will be in the mid range area of burn. Say a 5 second or so burn time. Later this year Im hoping to have my white formula going where…   Read more»

Now THAT should be a nice flight :DWhat kind of a load are you talking about here? Fast? Slow? Moonburner? I vote for a 15 second moonburner, personally

Con,That would qualify any day of the week as up to something. Good luck.John

Well………… James and i Bought the 6 inch motor and im working my way to a project for that of course.. im sure James will use it before I. But I should have a FULL N on MHM in a…   Read more»

Maybe time to revive this thread, word on the street says we have some awesome Research rockets for MHM now that we have a green light on sunday. Mike B mentioned IIRC a three stage rocket involving many big motors…   Read more»

Ah, so that’s a better difference. Though for the cost probably not worth it.Edward

Gotta scroll down–either the CF or FG that are near E tank volumes are 1.7 and 1.9 Kg dry respectively.

No, I haven’t. The cylinder that I have right now weighs 3.4 kgs and is aluminum. The equivalent from Luxfer on that page weighs 3.3 kgs empty. Not worth it for 100 grams.Edward

Ed,Have you priced the composites from Luxfer–likely cost an arm, leg and both kidneys but they are light and 100mm Diam.http://www.luxfercylinders.com/products/medical/productrange/specifications/us_metric.shtml

The M500 has a total impulse of 9000 N. I’m hoping to up that to around 10,000 N. I don’t know about certifying it right now. I’ve been on/off about doing it. I don’t think most people could build light…   Read more»

Edward, what is the total impulse of your M500? Are you going to certify it? Sounds intriguing… I do wish it was 4 inch, though. Can’t have everything 🙂

Ed,No sweat. I know John B had plans for that flight for last year. The weight is not an issue–the way I’d like to configure the flight is close to a ton of thrust for 1.5 seconds–should be about 10…   Read more»

I’ll have to get all the final numbers done for the M. It’s kinda heavy and odd diameter 4.5″ OD. The first priority of the M motor is a flight in HS-2 – a rocket built by John Bixler. To…   Read more»

Ed,That big M would be perfect for the top stage of the 1/2 scale Nike/BB–even burns for about 13 seconds and turns on pretty much instantly–plus all the smoke during the blow down–would be friggin perfect I think. What do…   Read more»

Initial thrust is 200 pounds for about 2/3 of a second.Edward

So Edward, Whats the initial thrust like.. Ive got rocket. BUt weighs in at about 48lbs no motor.Ahh the darkside.. Did I mention I like Shiny things.