Those are just MJG FireWires, which I think ship USPS ground.
Confused at RMS hardware
- Thread starter Fireball
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They were not back when I bought mine that I used up; MJG firewires did not even exist then.
Fair enough. They've been FireWires for at least two years is all I can vouch for.
John Taylor
Well-Known Member
Have you seen the Aerotech 18/20 Rms motor with the D13 WL load?
Very impressive, loud and powerful for an 18mm motor.
Note, a 3 pack 24/40 of F24 WL costs about 38.00. So that's around 13.00 each.
I quoted the retail prices for consistency, but I would never pay retail for hobbyline motors when they can be had up to 35% off if you time things right.
I've looked at the 18/20, but to me it doesn't make sense from an economic perspective either. I tried out the 18mm Q-Jets but couldn't even stay there on cost; I stick to BP now in 18mm.
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Both the 18/20 D loads are a full 20 N-sec, where the Quest D20 is only 13.8 N-sec and Estes doesn't make an 18mm D. So if you want to send a rocket that's less than 24mm diameter, or has a boat tail/nozzle less than BT-50 size, you need the 18/20. Those of us who like sending little rockets farther out of sight than a C6-7 will take them are happy to have it.
If your rocket can accommodate a 24mm motor mount, yeah, do that.
If your rocket can accommodate a 24mm motor mount, yeah, do that.
Fair enough. I have no interest in BT-20 rockets nor sending rockets out of sight, so there we are.
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There is another good reason to use the 18/20 loads. If you already have Estes rockets with 18mm motor mounts, but they are too clompy, fat, or heavy to fly well on C6 or C5 motors, they really work well in these situations.
This is a Xarconian Cruiser on a D13W, which is excellent but does not go out of sight. The thing barely flies on C6s.
waltr
Well-Known Member
The 18/20 D13W is a great load with the full 20Ns impulse. It kicks harder than any BP or Quest motors and is quite loud compared to any 18mm motor.
Another favorite is the 24/40 D15. Works on any rocket that a BP D12 works in but with a little extra kick.
I also feel that thes reloads are much more reliable than the Quest motors.
Another favorite is the 24/40 D15. Works on any rocket that a BP D12 works in but with a little extra kick.
I also feel that thes reloads are much more reliable than the Quest motors.
n3tjm
Papa Elf
I agree. Both the D13 and the D15 are excellent reloads.
I use the D15 as a "first flight" motor in rockets that normally would use an E or F. It has enough initial thrust to give decent off-rod speed, but keeps the altitude down.
Hans,
I still have a case of D13W and D24T Reloads for the 18/20 case. It's been probably 12 years since I stored them away. I need to look at them. I can't remember if ordering dealer QTY's if the case was 6 of them or 8.
I assume the D24s will be fine. Even still sealed in the bags, the D13s will likely need to file work on the C-slot.
I assume the D24s will be fine. Even still sealed in the bags, the D13s will likely need to file work on the C-slot.
John Taylor
Well-Known Member
Well you can have a full D with 19.8 NS total impulse or you can use a 18mm BP Estes C motor at 8.7 NS total.
So... over twice the energy from an eighteen mm motor. So there's that.
Sure. Or I could just build rockets with 24mm mounts.
If you like them, by all means, keep buying them. The 18/20 motors don't make sense for my flying, and likely never will.
n3tjm
Papa Elf
I was ordering some reloads the other day.... seriously..,. what happened.... almost $27 and some change for a pack of D24's... um... what happened.... they were not that expensive last time I ordered them. not that much more I can get E reloads...
Sirius shows them for $23.79. But, siriusly (see what I did there?), it looks like all the motors have taken a jump. Even 18mm Qjets.
Hans.
rcktnut
Well-Known Member
I have 3 24/40 motors, love them. I can't see fooling around with the 18/20's though. I wish the 18mm. D Q-Jets would be closer to a full D.
I agree. The problem with a full D 18mm reload is that the typical rocket it would work with could likely disappear, thus losing the case. So risking that rocket with a D single use would be potentially less expensive.
Hans.
n3tjm
Papa Elf
Both the D13 and D24 are excellent motors
D13
D24
D13
D24
John Taylor
Well-Known Member
Well,....
John Taylor
Well-Known Member
If a person has a rocket with an 18mm mount. The rocket might be a little heavy for a C motor, or the flier wants more performance out of an 18mm motor rocket. What can't you see the uses for a
19.6NS motor instead of 8.7 NS motor that is the same size?
John Taylor
Well-Known Member
They are for specific situations where all you have is an 18mm motor mount. The 3pk of D24T and D13WL loads area great value for what they can do. Where else can you get a full D load in 18mm?
All motors have gone up. Due to the costs of raw materials.
Rocketry doesn't have to be expensive but it's not free either.
Try purchasing High Power motors.
loopy
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Exactly...think of people with the old Venus Probe, Prowler, any number of old Estes kits that had 18mm mounts, but only hit about 200' on a clear and windless day on a C6.
n3tjm
Papa Elf
I do purchase High Power motors and I cringe every time I click the order button
rcktnut
Well-Known Member
That is why in my post #47 it would be nice to have some 18mm. Q-jets with more total impulse. I have several Estes 18mm. "clunkers."
mh9162013
Well-Known Member
Those sounds coming from the engines are awesome.
loopy
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Right. My comment was aimed in support of John Taylor's comment to jmasterj...
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I got a 29/40-120. Haven't used it yet but sold as able to handle from 40 to 120 and in between. Not so?
The 29/40-120 case uses disposable cardboard spacers that come as part of the reload kits of the smaller motors that fit it.
@bad_idea is correct above.
