Difference between Aerotech RMS and CTI RMS?

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ArthurSull

ArthurSull

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I know I can use the Aerotech 24/40 in my D Region, but what about Cesaroni's offerings? Are they easier?
 
ArthurSull said:
I know I can use the Aerotech 24/40 in my D Region, but what about Cesaroni's offerings? Are they easier?
Click to expand...

Easier? Yes, by far. They are basically pre-assembled single use motors which you insert into a tube.
Cheaper? No. They are basically single-use motors, cost-wise. ~14 dollars apiece, versus 12-19 dollars for three Aerotech motors.
 
The CTI 1 grain case will take up about the same space as an Estes D12 (actually the CTI case is 0.02" shorter). The aft closure is 1/8" thicker than the AeroTech 24/40 RMS. There are only 3 loads available for the CTI 1 grain Pro24 case, though, the E75 (Vmax), the E31 (White Thunder), and the E22 (Smoky Sam).

CTI Pro24 Dims.jpg

Greg
 
Agree with the others, easier but single is what a three pack of the ATs cost.

What time of motor retainer are you using in the D-Region and how long a case can your MMT tube accept ?

CTI does have a couple of real cool loads like the Dual Thrust and such.

Kenny
 
For your future considerations, and FWIW to you, consider purchasing both CTI (my preference because of ease of reloading) and AT because I can get them at discount prices if you watch for bargains (like a G reload for $9.00; think Hobbylinc) When I buy cases, especially the CTI cases, I buy 3G case and put two spacers in so that I can launch three different size motors with the same case. With a 6G-XL, I can put in up to 3 spacers and fly four different size motors, and 7 different sizes in total with only two motor cases. So when I build a 29mm size motor mount rocket, if there is room, I always build for a 3G or 6G-XL motor mount. This gives a lot of options depending on the capabilities of the airframe. So I have a modified AT Arreaux that will take a lot of different motors. Since it is a robust airframe, it can be made to be dual deploy and fly H and I motors on it. So in your rocket, you could conceivably any where from a D to a G in it, if the airframe will hold up. (I have not built one, so I do not have that experience, but I have flow Estes BT-60s and 70s on G-54s and G-118 and they have held together.)
 
Is CTI making spacers now for the 24mm motors? I wasn't aware of this. No matter--the Pro 24s are fun little motors. Cheap they aren't, as compared to AT's 24mm loads, but I still dig them and have a few on-hand just for giggles when out with the kids --an afternoon of ho-hum C-11 and D-12 flights is perked up by an F-50 immensely. Hearing the kids go "WHOA!" when they touch off is well worth the price of admission to me...


Later!

--Coop
 
Last edited:
Coop said:
Is CTI making spacers now for the 24mm motors? I wasn't aware of this. No matter--the Pro 24s are fun little motors. Cheap they aren't, as compared to AT's 24mm loads, but I still dig them and have a few on-hand just for giggles when out with the kids --an afternoon of ho-hum C-11 and D-12 flights is perked up by an F-50 immensely. Hearing the kids go "WHOA!" when they touch off is well worth the price of admission to me...


Later!

--Coop
Click to expand...

I guess the question is "will CTI make spacers for the 24mm casing"? I have CTI 29mm and 38mm harward and am considering 24mm. But I am not sure the reloads are that much cheaper than SU options and I have to have 3 casings to be able to fly with E, F and G. :confused2:
 
In 24mm, Aerotech is much cheaper, but only have the 24/40 case which is the size of an Estes D motor. They have D - F sizes and the case is designed to fit an Estes D sized motor mount. The CTI 24mm are much more expensive, but easier to use, you don't have to "assemble" them like the Aerotech. They have a case that will fit an Estes D motor mount, but they also have longer motors and many more choices of propellants and sizes for 24mm.

I would recommend going to the Aerotech and CTI sites to see what the offer. Then go to different vendor sites to see what the price differences are.
 
FWIW, I have some AT hardware and more Loki hardware. My local vendor sells both. I have also a few CTI cases that don't see much use.

For my current project (I will get the Rube Goldberg Lander finished! I promise!), I have decided to go with CTI. It is a 5x24mm cluster. Getting the cluster to ignite reliably is the reason. For ignition reliability, CTI cannot be beat.

The points the others made are very valid. CTI is easier than Loki which is easier than AT. Loki costs less than AT which costs less than CTI (for what I fly). AT and CTI both have more variety than Loki. For my vendor, Loki is more available than AT and CTI is hard to get. Your experience will differ. Special needs determine which is best for a given situation.
 
These are the easiest 24 mm:
https://www.hobbylinc.com/htm/aro/aro63208.htm

RMS makes more sense once you get into power requiring hazmat shipping (US anyway). But then you will need a small RMS so 24 mm doesn't cost more than 29 mm. CTI is always at least $5 more, not a problem on big reloads....
 
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Area66 said:
"The first time I built an AT reload, it took me 45min. Now it takes me about 10"


10 minutes? really ? It take me 1 minute, 2 if I talk to someone at same time.
Click to expand...

You go, girl!

:wave: :wave:

Alex
 
Coop said:
Is CTI making spacers now for the 24mm motors? I wasn't aware of this. No matter--the Pro 24s are fun little motors. Cheap they aren't, as compared to AT's 24mm loads, but I still dig them and have a few on-hand just for giggles when out with the kids --an afternoon of ho-hum C-11 and D-12 flights is perked up by an F-50 immensely. Hearing the kids go "WHOA!" when they touch off is well worth the price of admission to me...


Later!

--Coop
Click to expand...
No. CTI is not making spacers for the Pro 24 line. I doubt there would be much savings with spacers versus casing in 24 mm. Right now they make 1G, 3G and 6G casings.

The CTI Pro24 market is fundamentally different than the AT 24 mm casing market. While all of the 1G Pro24 reloads are modroc reloads, 2 of the 6 3G reloads are high power, and 7 of the 8 6G reloads are high power, so the Pro24 market is aimed at HP certified adults who seek maximum performance in minimum diameter casings.

Bob
 
Unfortunately the only load for the 24/60 is an F35, it's a great load but you'll still need to get a 24/40 if you want anything smaller. You should get one anyway, they have a ton of loads for it. The F12 is nice for lightweight rockets, and the E28 is a nice load for rockets a little too heavy for an Estes E12.

falingtrea said:
I think Aerotech also has a 24/60 case which is the size of an Estes E.
Click to expand...
 
Just an FYI guys. Arthur's from London in the UK. so you're pricing comments may not be relevant.

Bob
 
cerving said:
Unfortunately the only load for the 24/60 is an F35, it's a great load but you'll still need to get a 24/40 if you want anything smaller. You should get one anyway, they have a ton of loads for it. The F12 is nice for lightweight rockets, and the E28 is a nice load for rockets a little too heavy for an Estes E12.
Click to expand...

I wonder if the 24/40 reloads could be used in a 24/60 case with a spacer? Don't some of the smaller 24/40 reloads come with spacers already?
 
falingtrea said:
I wonder if the 24/40 reloads could be used in a 24/60 case with a spacer? Don't some of the smaller 24/40 reloads come with spacers already?
Click to expand...


That's just too logical and not done, yet. Sure would be a way to move a lot of cases in a hurry...
 
As far as I know, the 24/40 and the 26/60 are not compatible, with the latter being built stronger. If this means that the 24/60 has thicker walls, 24/40 reloads wont fit.

Reinhard
 

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