It's not that hard. It has to do with the mass of the individual grains. As long as each propellant grain is below a certain mass, it can ship non-hazmat.
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Our new concrete static test cell revetment in action.
View attachment trim.85554DCB-C471-44F6-99B6-A97EFAB2B7F0.MOV
View attachment trim.85554DCB-C471-44F6-99B6-A97EFAB2B7F0.MOV
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Yeah, but the G64 and G76 are not HAZ. The Fs for that case are kinda lame compared to the F24, F39 and F35 in the 24/40 and 24/60 cases.
Below that, I kinda like the Quest E35.
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The F24, F35, F40, and G64 are an interesting group of motors.
https://www.thrustcurve.org/motors/...2310000000047&motors=5f4294d20002310000000060
The retail prices are
F24 - $14.33
F35 - $19
F40 - $23
G64 - $26
with the F40 being the only one requiring HAZ shipping. I've bought a single F40 ever but a bunch of the other three because of that. There is a huge impulse jump between the F35 and G64, though, so I see why someone would want to use an F40. I'd probably just use a G53FJ if I was looking for less impulse, though (~90Ns).
https://www.thrustcurve.org/motors/...2310000000047&motors=5f4294d20002310000000060
The retail prices are
F24 - $14.33
F35 - $19
F40 - $23
G64 - $26
with the F40 being the only one requiring HAZ shipping. I've bought a single F40 ever but a bunch of the other three because of that. There is a huge impulse jump between the F35 and G64, though, so I see why someone would want to use an F40. I'd probably just use a G53FJ if I was looking for less impulse, though (~90Ns).
Not as comparable since it's Blue Thunder, but fair. I don't really like small Blue Thunder so it's an easy pass for me.
Reason why I like it is that it lifts heavy rockets to a reasonable altitude for smaller fields. My Bounty Hunter goes to 600ft. The F40 doesn't have decent launch rod speed for some of my bigger rockets.
Hans.
The 29/40-120 G motors are economically excellent per Ns when compared to pretty much every other non-HP motor. I imagine the G53FJ, G76G, and G64W will be staples of my rocket flying for years to come.
I really like the G53FJ as an intermediate step between the F52T and the G64W. Have a bunch of them in the motor box.
Unsuspecting observers go "Holy crap! Look at all that smoke!"
Hans.
I feed my Estes Mega Der Red Max a steady diet of G76G and G64W motors (when not flying on H115DM). All are great motors and some of my favorites. I always try to keep a few on-hand.
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RCS Low Molecular Weight Hydroxyl-terminated Polybutadiene Resin is back in stock after an extended period of unavailability.
https://www.rocketmotorparts.com/Propellant_Chemicals/cat1577810_1455504.aspx
https://www.rocketmotorparts.com/Propellant_Chemicals/cat1577810_1455504.aspx
The 29/40-120 F motors are still excellent motors, but the hazmat is unfortunate. I only purchase them in-person in order to avoid hazmat fees, but still fly plenty of F40's and F52's. Particularly in clusters/air-starts.
I can understand why people without an on-site vendor would not fly (many of) them, however.
loopy
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Is there a list somewhere that shows what motors need grain bonding? Just trying to plan ahead for an L3 cert attempt, and wondering if the M1297 needs to have the grains bonded or not...I can't find the assembly instructions for that load online anywhere...I thought I had at one point, but I don't see it anywhere now.
Here’s a link to a website that has the AT press release from several years ago about grain bonding. Their press release listed which motors it is recommended for. The M1297 isn’t one of them. (You can still do it if you want to, though.)
http://www.moto-joe.com/blog/2016/10/29/75-98mm-rms-reload-kit-grain-bonding-advisory/
firemanup
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firemanup
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https://d11fdyfhxcs9cr.cloudfront.net/templates/170652/myimages/75_5120w_m1297_1642720030064.pdf@firemanup Responded faster then did..
Tony
0011001100
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Is the L1000W a kit that has to be built or does it come already assembled like the smaller ones? I am confused because of this wording on the product page:
I'm planning to fly one at Red Glare this year and if it needs to be assembled then I will buy it ahead of time. If it doesn't, I would rather buy it at the field and save on shipping.
https://aerotech-rocketry.com/products/product_7b583f40-d35a-9074-ee7c-dee43528bcfb
I'm planning to fly one at Red Glare this year and if it needs to be assembled then I will buy it ahead of time. If it doesn't, I would rather buy it at the field and save on shipping.
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I believe this is a miss type. The 54mm and under DMS are all pre-assembled. The LMS motors are "single use" that the user loads. Fly safe
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0011001100
A Person
Thanks. I figured it was but wanted to make sure. Now to find someone with one in stock that can deliver to Red Glare
Some of the larger DMS motors do have to be assembled by the user. See this product picture of the M1350W.
https://www.buyrocketmotors.com/aerotech-m1350-p-white-lightning-75-mm-dms/
However, it appears that the L1000 is not one that requires assembly. I would wait for Aerotech to confirm though.
https://www.buyrocketmotors.com/aerotech-l1000-18a-white-lightning-54-mm-dms/
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My brain was not fully functional at the time. I meant to say all 54mm and under DMS motors, corrected, thank you.
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Yes, the 75 & 98mm DMS motors are sold unassembled to enable lower cost FedEx and UPS shipping.
0011001100
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Thanks all. Contacted Tim and will be buying a L1000W for a Red Glare flight.
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Just throwing this out there. I would be interested in longer-burn motors for the 24/60 and 29/40-120 cases. Knowing they might not be able to hang absolutely for maximum altitude with the Apogee E6 and F10 due to the weight of the case, it still seems that with the much greater N-s currently available in the cases, something could be done that would come close. Or maybe more N-s is more N-s and they could do quite a bit better. Or be similar on very light rockets and even better on somewhat heavier rockets. I know hardly anything about motor design, but would it be possible to convert the White Lightning grains to be end-burn instead of C-slot?
An important detail, obviously, is that the reloads work out to be non-HAZ shippable as the F35 and G64 are now. That's a lot of it, actually. I'd like to mess with rockets that would like the E6 and F10, but don't want to pay HAZ or buy mass quantities at a time to amortize the pain.
If I'm not the only one, it would be nice for others to chime in and tell Gary how awesome this would be. As if he hasn't already noodled on it for years, being a long-burn fanatic...
An important detail, obviously, is that the reloads work out to be non-HAZ shippable as the F35 and G64 are now. That's a lot of it, actually. I'd like to mess with rockets that would like the E6 and F10, but don't want to pay HAZ or buy mass quantities at a time to amortize the pain.
If I'm not the only one, it would be nice for others to chime in and tell Gary how awesome this would be. As if he hasn't already noodled on it for years, being a long-burn fanatic...
The AT end-burners are super thunder (the small ones) or Warp 9 (bigger ones). They're also one grain, which means HAZMAT shipping. It would have to be less propellant than a G8/G11 to fit in the 29/40-120 case.
I'm not saying it can't work, but I'm not sure the juice would be worth the squeeze. I wouldn't buy one, but I wouldn't buy a G8 or a G11 either.
I'm not saying it can't work, but I'm not sure the juice would be worth the squeeze. I wouldn't buy one, but I wouldn't buy a G8 or a G11 either.
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Well, if the 29mm was less propellant than a G12 and still HAZ, I wouldn't see the point. But I'd still be interested to see what a 30-ish gram grain of end burning Super Thunder in a 24/60 case looks like.
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