https://estesrockets.com/pages/d12-engine-service-bulletin
I was just alerted to this by Randy Boadway at eRockets.
I was just alerted to this by Randy Boadway at eRockets.
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No response yetDid you get any acknowledgment from Estes? I didn’t.
Thank you! I have been waiting for this for a long time! In fact, I'm waiting for my latest CATO replacements and got a notice that they are wait listed. They must finally have gotten swamped with all the replacement requests.https://estesrockets.com/pages/d12-engine-service-bulletin
I was just alerted to this by Randy Boadway at eRockets.
Sometime those great deals are not.Just checked the 12 packs of D12-3s I bought on the recent HL clearance. Ten are winners!
Sometime those great deals are not.
Yes, I was thinking of just that. Use them on some copters or tough saucers. Try a monocopter!Or maybe there are 20 free launches of a spool or something else fun in my future. I knew the risk of the 0323 lot code and am planning a CATO-resistant rocket build anyway. So maybe it will be a build thread on CATO-resistant build concept and how many flights can I get out of it before it dies one way or another? I look to have 44 D12-3s total, for the pre-clearance price of 12.
I did that.I knew the risk of the 0323 lot code and am planning a CATO-resistant rocket build anyway. So maybe it will be a build thread on CATO-resistant build concept and how many flights can I get out of it before it dies one way or another?
I did that.
Post in thread '2ND CATO !!'
https://www.rocketryforum.com/threads/2nd-cato.186337/post-2596509
https://www.rocketryforum.com/threads/2nd-cato.186337/post-2596509
I've gone to composites also....using Aerotech 29/40-120 and going to buy 24mm case. Might also go to 38mm for G loads....BP engines are way more expensive when I have to replace rockets...rsbhunterI had 8 of them, form says may take up to 120 days for replacements. I see there are twice as many E12 catos than D12 catos listed on the MESS site. Will they ever do anything about all the E12"s ? I just ordered $100 worth of composite motors, i also have that much in E motors in my range box.
I need something parachuteless. Maybe something like this.I did that.
Post in thread '2ND CATO !!'
https://www.rocketryforum.com/threads/2nd-cato.186337/post-2596509
https://www.rocketryforum.com/threads/2nd-cato.186337/post-2596509
Usually they just blow out the ends. For a case explosion, maybe use a fin can that splits in two or more parts lengthwise.I'm planning to make it reasonably robust to a case explosion, as well.
However, if you get a cato that blows apart the bottom, you may end up with a lot of tiny pieces of foam to clean up, no?Pool noodle rockets! 24mm hole the length of the rocket; pre-vented and they bounce when they land!
Possibly. My experience with Estes Catos over the years is that it's usually flaming bits/chunks out of the ends of the case. Rarely (but occasionally) have I experienced black powder catos that rupture the side of the casing. With an open-ended rocket (holy foamy thing, Terraformer, Vortico, Monocopters, etc.) the damage is usually minimal when the flaming debris goes out the ends of the case in the direction of intended flight/thrust. Of course, your mileage may vary!However, if you get a cato that blows apart the bottom, you may end up with a lot of tiny pieces of foam to clean up, no?
Edit add: Years ago someone had a cato on his mid/high power styrofoam rocket and a bunch of us spent a LOT of time picking up all the little foam pieces. He never returned!
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