m bird

[Chris LaPanse]

Out of curiosity, why the M1545 green? The M2020 Imax is more powerful, smaller, and lighter.

Oh, and the sim looks fine to me. I’m a bit surprised it isn’t higher, but as long as the site altitude and temps look realistic, I’d say you’re good to go.

[SCOTT EVANS]

Out of curiosity, why the M1545 green? The M2020 Imax is more powerful, smaller, and lighter.

Oh, and the sim looks fine to me. I’m a bit surprised it isn’t higher, but as long as the site altitude and temps look realistic, I’d say you’re good to go.

Because its green 😉

Didnt see the other one till now. Thanks… I was happy.
Now I feel cheated out of a few nanos 🙁

[Christopher Dreher]

Or the new M840 long-burn white motor that fits the Pro75-6G hardware…that would be impressive!

[SCOTT EVANS]

Out of curiosity, why the M1545 green? The M2020 Imax is more powerful, smaller, and lighter.

Oh, and the sim looks fine to me. I’m a bit surprised it isn’t higher, but as long as the site altitude and temps look realistic, I’d say you’re good to go.

I played with the sim a little more today.
Actually it does sim over 40, fully optimized. It would have to have the right boat tail and shorter body tube. I am not sure how much shorter the tube could really be though and still take along a parachute! Stability would have to be considered too.
The M2020 doesnt really go any higher, just a little faster. The rocket weighs just about 5 pounds with out chutes and ebay stuff. So I was guessing 10 to 12 with every thing. I had talked to Mr Billings about making a boat tail for it a few months ago, but I never persued it because I didnt know where it was at. Now I do.
For NCR the sim says a FLAT BUTT and the longer tube will keep it in line.
Part of the reason I posted the sim, was so people didnt think I was just putting it up there, with out having a clue what it was gona do, considering the question was raised. 🙂 Right Joe. 😉
This is all assuming the flight is straight and it doesnt rip a fin off any way. That hasnt always been my luck. 😕

Should be a good picture to hang on the wall any how.

[Warren B. MusselmanModerator]

If you lose a fin during a stable boost – even at Mach 2, I’ll rebuild it for you and maybe even buy you another motor. Those fins are ON there and ain’t coming off. (Unless you sanded through the carbon that is)

[Chris LaPanse]

Your fins should be fine. They’re made pretty much exactly the same as mine are (autoclaved 1/8″ carbon core with 2 layers of CF over them, and then mine have a layer of glass just for the finish), and I’m pushing mine up to 2.4 or so at Mayhem (actually, I should be able to give you some nice stiff competition for the highest flight of Mayhem :D). They certainly look nice and solid.

[SCOTT EVANS]

The plate I had was about .100 It varied about from . 097 to .105
I ordered on line, a couple of 3/32 router bits for the slots. Took me a couple of days to find them. I bought 2 in case I broke 1
The smallest I could find locally, was 1/8″

[SCOTT EVANS]

If you lose a fin during a stable boost – even at Mach 2, I’ll rebuild it for you and maybe even buy you another motor. Those fins are ON there and ain’t coming off. (Unless you sanded through the carbon that is)

Nope, I stopped when I broke through the layer of epoxy last night.
I will paint another layer on tonight. Still have a few divets to get out.
I will step up to a less aggresive grit this weekend.

[SCOTT EVANS]

(actually, I should be able to give you some nice stiff competition for the highest flight of Mayhem :D).

I over heard what motor your burning today. I think mine is gona get a lot better gas milage! 😉

I just dont think your gona move a ton of freight 436 miles on a pound of fuel with that “N” 🙂

[Chris LaPanse]

Oh, I don’t think there’s any question whose will be more efficient 😀

Mine really couldn’t be considered efficient in any sense of the word…

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