#1
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Rail buttons vs. launch lugs... both?
Some of the kits I'm interested in only come with rail buttons. Since I don't own a launch pad that uses a rail, I normally just buy kits with launch lugs. But why not just put both on a rocket? If the BT is slotted or has a spot for button attachment would it be alright just to add some launch lugs on the other side so the rocket could be launched using a rail or a rod? I have to believe that this is not an uncommon practice, I just have not tried it yet. Any one have any advice to impart?
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SAM #0354 |
#2
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nothing to say that you can't put both on, normally one would do this on rockets up to 'G' impulse motors...(I did get a kit that came with 3/8" lugs, I put rail guides on it).
rex |
#3
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There's no problem at all in doing this. I have a couple set up that way, mainly to give me another pad option at busy launches.
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www.wooshrocketry.org NAR Sec. 558 Look us up on YouTube: http://www.youtube.com/user/guytogo75?feature=mhee unstable by design |
#4
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Quote:
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In my experience with rods, avoid the threes. 3/16" is pretty common but still not as common as 1/8" and 1/4". 3/8" is rare. And 3/4" is extremely rare. So, if you're attending club launches, you may have trouble finding rods in these sizes. (FWIW, I have seen 1" rods. But I'll use rail guides for anything too big for a 1/2" rod.) In model rockets, using two lugs with some space between them, say 12", you can readily use 1/4" lugs on a 3/16" rod. The point is that, with two 1/4" lugs, you can fly it off a 3/16" rod just as easily as a 1/4" rod, so a rocket with 1/4" lugs is much more flexible as far as equipment goes. Doug .
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YORF member #11 |
#5
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On some of my large E-G range rockets, I install both 1/4" lugs and 1010 rail buttons.
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NAR # 39505 SR L1 NAR Section #576 MASA Member |
#6
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Thanks for the responses! I figured this was something a lot of you guys have done before. I do have a 6 ft 1/4" rod and also a 5 ft 1/4" rod for the larger rockets. I have not quite gotten to the point of Hi Power just yet. Still fiddling around in that mid-power motor area. We do have a tripoli club here in town and I know I can go out and launch with them once I do step up into a high power motor rocket. Until then, anything that'll fly on a G but has rail buttons I just wanted to be able to launch myself.
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SAM #0354 |
#7
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Drag. it increases with impulse category proportionally. I just costs more per gram to go a certain altitude. If it just for sport it doesnt matter.
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Patriot 464 CMASS MMMSClub.org NAR #92766 |
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