24mm Estes Patriot

[Dennis Fox]

Hey everyone. Just a quick question. I am building the Estes Patriot (2056) and have upgraded it to a 24mm engine mount. I probably won't fly it with anything other than a D, but just wondering if anyone else has done it and if so how much nose weight to add, and/or where should the CG be?

Before anyone asks I don't have Rocksim and probably won't get it until I get rid of this boat anchor of a computer.

TIA,
Dennis

 

[jj94]

I'd put in .75-1 ounce worth of weight up in the nose cone. Rocksim says that .75 will give you a margin of about 1.8. The CP is about 15.75 inches from the tip of the nose cone, and you can add weight until you get your desired number of calibers.

 

[Dennis Fox]

Thanks Josh. I'll give that a shot and hopefully post some launch pics.

Dennis

 

[jj94]

That reminds me. I should probably get started again on my Patriot. Beefed it up a bit for use with composites instead of black powder. It's been sitting in sanded primer for a year now. I need to paint more.

By the way, welcome to TRF! I just noticed that these were your first two posts.

 

[Dennis Fox]

Thanks Josh. Actually I joined back before the crash and just now got around to re-upping.

And yeah, the Patriot is a neat rocket. Haven't ventured into HP yet but I was eyeing the larger ones that Apogee and PML sell. Then I saw this one at the hobby shop and said what the heck. Couldn't build it stock though. It was just begging for a 2mm engine mount.

Thanks again for the info.

Dennis

 

[Dennis Fox]

Oops, sorry, fat fingered that one. Should have been "24mm engine mount". A 2mm engine mount wouldn't do much.

Dennis

 

[jimzcatz]

I did this mod a few years ago,I didnt do anything to it for flight other then 24mm mount.

 

[bguffer]

https://www.rocketreviews.com/reviews/all/mod_est_m104_patriot.shtml

 

[AHansom]

I did the same 24mm upgrade to my Patriot. I have flowen the rocket on Estes C-11 and D-12's and on Aerotech's E-15 and E-30. The Estes E-9 was a little slower of the pad but still managed to do OK. For me the rocket flies great with the upgraded MM and I did't need to add nose weght. I also upgraded to a 10"Top Flight X-form parachute and a 48" of 1/16 kevlar shock cord.

Andy Hansom

 

[dr wogz]

I have a 24mm Patriot too. Hasen't yet flown though! (no time, or too much wind!)

I haven't added any nose weight, but I should also point out that mine is mainly 'scratch', as I used only the fins from the kit. I used 2 pieces of BT (from the 'scrap bin'), and came out about 1" longer than the standard 'kit'.

 

[Mikus]

I did this mod a few years ago,I didnt do anything to it for flight other then 24mm mount.

Same here. It loves D12-7's.

 

[FROB]

I picked up one of those too, with the intension of using it to test some altimeters. Thanks to the 3-piece BT design, it should be easy enough to make the middle section into an ebay- it already comes with 2 couplers.
I haven't built it yet as i haven't decided whether to give it a 24mm MMT, or really go nuts and make it 29mm.
Hmm... 24mm would give me good excuse to go out and get the new RMS42-60 and some F35's for it..

Has anyone done a rocksim file for it? It would be fun to try some sims, but i'm too lazy to do one from scratch!

 

[Dennis Fox]

Hey Bob, thanks for the EMRR link. I looked there but didn't find that. That engine mount looks just like mine except I cut 1/16" plywood centering rings and I tied my Kevlar around the motor tube. I'll let you know when I launch it and maybe you can get a decent pic of it.

Dennis