54/2800 Loki Blue Poll Questions

Hopefully I do this poll right. It's only the 2nd time I've ever done one. It's not something I'm currently working on, but when I do, I'd like to have this answered.

If I were to certify Loki Blue in the 54/2800 case, which of these two criteria would be more important to you?
1) Having the most possible total impulse with a little longer burn and a longer tail off of thrust.
2) Having a slightly lower total impulse but with higher average thrust/shorter burn and a quick/clean shut down with little to no tail off of thrust.

The best reason I can think of wanting #2 is for those who would prefer a booster motor with a fast clean shut down for a smooth quick separation.
I don't think that the number of those people wanting a booster motor would be very many, but I'm doing this to find out, just in case.
#1 could have around 3,500Ns and might be around an L~1630 with a 2.15 second burn.
#2 could have around as 3,300Ns and might be around an L~2000 with a 1.65 second burn.

#2 is a bit more difficult since the motor is a bit erosive and it's in its nature to have a bit of a tail off. More testing would need to be done to adjust the core size properly in order to eliminate the tail off of thrust. I'm just curious what people think.

Thank you,

I think the number of people looking to eek out a bit more altitude is going to be much higher than those than want a good really hard boost for a 2 stage.

After looking at your available 2800 loads I think a nice short burn blue is in order. At a 1.6 sec burn that will have to produce a wicked amount of flame in a short amount of time. Thats going to break some pads.

I guess it would depend on the cost and if a single shot nozzle would be required?


TA

Would it be possible to have a pink motor with a clean shutdown like the 38mm version?

I personnally like the L1482 Blue!!

Punch it and bend the blast deflector - L2000

CarVac said:

Would it be possible to have a pink motor with a clean shutdown like the 38mm version?

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Possible, yes. Maybe an L-1500ish. Finding the time to do it is the big hurdle, as with most new things.

Thanks for all the votes everyone. Keep them coming please.

L 1500 would be better.

Scott my vote would be for the L2000. East coast flyers would love the hard punch for getting heavier rockets up in smaller waiver / feild conditions.

Eric

Go for the L2000. If you are looking for maximum total impulse, you already have the L1040.

Syclone said:

Go for the L2000. If you are looking for maximum total impulse, you already have the L1040.

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but who likes red?

DizWolf said:

but who likes red?

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Everybody loves Loki Red Dave!

My one and only 54mm rocket isn’t so heavy as to need a 2000 off the pad and I see no reason for me to subject the rocket to that much G force.

This has been one reporter’s opinion.

Well I've only got 57 votes placed, not a real huge turn out so far, but it's a little over 2:1 in favor of more total impulse. It's not that the higher impulse will have all that much more thrust. An L-2000 would have a shorter burn time with less total impulse which ends up giving it a higher average thrust, but not really a whole lot higher thrust.

Anyway, I'd be just fine going for more total impulse and higher overall performance. Here's a teaser test video from the fall of 2013 when I was testing new nozzle design ideas. This motor is pretty much right in between the two proposed above, which could work out well to please everyone. However, it might just come down to the numbers & sizes of available mandrels I have on hand.

[video=youtube;Jbrkc7NK3mw]https://www.youtube.com/watch?v=Jbrkc7NK3mw[/video]