Bigger Deuce

[DAllen]

Oh...I didn't know there was a Tres:

https://www.fliskits.com/products/01prod_fs.htm

I'm thinking 3x O8000. Make it happen Tom.

Make it happen? Heh...Just getting a 98mm Deuce was an amazing feat.

I do recall an upscale Tres (2.5x maybe?) that flew at LDRS 27 but I don't recall the motor size. It was like in the K range or so.

 

[Davidtmp]

Nice flight Tom. You got mad skillz on all fronts.....rocket building, motor making, and videography.

 

[marcusSRG]

Yeah!!! I was so caught up on Red Glare and the Dan Michael Patriot incident that I forgot about this flight for a second! Perfect flight, baby bottom smooth landing and the onboard footage is excellent! She flew right over the flight line. At apogee you can see I-26 very well and you get a nice glimpse of the cloverleaf at 28secs or so.

Well done as usual, Tom! :clap::clap::clap::clap::clap:

Make it happen? Heh...Just getting a 98mm Deuce was an amazing feat.

I do recall an upscale Tres (2.5x maybe?) that flew at LDRS 27 but I don't recall the motor size. It was like in the K range or so.

Carl Tulanko (I think) flew an upscale Tres at a big launch a few years back. Flew on 3 Pro38 J400 Smokey Sams I believe. I remember seeing it in mags and the build thread is on the archive here somewhere....

 

[n3tjm]

Carl Tulanko (I think) flew an upscale Tres at a big launch a few years back. Flew on 3 Pro38 J400 Smokey Sams I believe. I remember seeing it in mags and the build thread is on the archive here somewhere....

Carl Tulanko's Upscale Tres first stage used three CTI 38 3 grain cases. I212's were motors of choice. I seen that thing fly several time .

 

[Green Jello]

Carl Tulanko's Upscale Tres first stage used three CTI 38 3 grain cases. I212's were motors of choice. I seen that thing fly several time .

Any video?

 

[marcusSRG]

Carl Tulanko's Upscale Tres first stage used three CTI 38 3 grain cases. I212's were motors of choice. I seen that thing fly several time .

Ahh. Thanks for the correction...I knew it was Pro38 SS of some kind. If they fit it would've screamed on J400s!!

 

[cwbullet]

Tom,

Great flight. Hopefully, you will fly it again.


Has anyone ever canted 4 motors?

 

[Rocketjunkie]

Oh coooooool. Thanks.

I love the design of this cluster. Has anyone ever done the same thing with 4 engines?

I've upscaled the Tres to 54mm https://www.rocketryforumarchive.com/showthread.php?t=7169
It's 12 feet tall and I've flown it 5 times, the last on EX K160's. I like the Deuce better as the third motor tends to fill in the distinctive split exhaust plumes.
[YOUTUBE]jGKN1ZZdQGw[/YOUTUBE]

 

[jflis]

Tom. Absolutely spectacular! Having that Deuce feature of placing the onboard camera right between the motors gets you video like nothing ever recorded befor.

Simply incredible!

Thanks for making my day

 

[DRAGON64]

The Deuse... had some trouble at Souther Thunder 2013... only one of the M1419's lit and...



I have grainy video of the flight which I will post in a little while, note that the rocket did crash, but I left the launch before finding out the extent of the damage...

 

[DRAGON64]

Here is the video... the quality is low...

https://youtu.be/ZcEtCHQklJE

 

[Brent]

Sorry Tom.

 

[Gary Byrum]

Geez, That's gotta hurt. Sorry for your loss Tom.

 

[CCotner]

(((

 

[DAllen]

Ouchie!!!!

 

[Rocketjunkie]

The booster dection will require a total rebuild. Tube and 2 fins broken For some reason the second e-match never fired, whether a defective e-match or problems with the wireless pad controller. It did take a couple seconds for the first thermite charge ti fire. The onboard camera was not running when recovered. I'll check the video tonight when I get home.

 

[Gary Byrum]

Well it's pretty obvious your Bigger Deuce totally relies on both motors. I would imagine all Deuces would. My little story about cluster failure was kinda dramatic but yours takes the cake.

 

[jsargevt]

Well it's pretty obvious your Bigger Deuce totally relies on both motors. I would imagine all Deuces would. My little story about cluster failure was kinda dramatic but yours takes the cake.

My 18mm deuce has flown perfectly fine with only 1 motor lit multiple times.

 

[n3tjm]

Ouch. To me it looks like the rocket was underpowered with just one M It's could also been a bad e-match. It's rare with commercial e-matches its rare, but it does happen.

 

[cwbullet]

The booster dection will require a total rebuild. Tube and 2 fins broken For some reason the second e-match never fired, whether a defective e-match or problems with the wireless pad controller. It did take a couple seconds for the first thermite charge ti fire. The onboard camera was not running when recovered. I'll check the video tonight when I get home.

Tom,

That is terrible. I am sorry to hear of the crash.

What type of controller do they use?

 

[LW Bercini]

 

[Rocketjunkie]

My 18mm deuce has flown perfectly fine with only 1 motor lit multiple times.

The 54 mm version also flies fine on 1 motor although it rotates around the rod until it reaches stable speed. The 98mm is on a rail and can't rotate. The buttons suffered a lot of damage from the twisting forces.

 

[jsargevt]

The 54 mm version also flies fine on 1 motor although it rotates around the rod until it reaches stable speed. The 98mm is on a rail and can't rotate. The buttons suffered a lot of damage from the twisting forces.

Interesting to know. More than anything I wanted to dispel the notion that the deuce is "unsafe" when only one motor lights. In fact I think Jim designed it so it would actually be stable if only one motor lit.

 

[Rocketjunkie]

Videos of the flight:
[YOUTUBE]gKuOOr09-c0[/YOUTUBE]
[YOUTUBE]6C-VmhWNyKc[/YOUTUBE]
With thermite it should have been touch button - gone.

 

[Rocketjunkie]

I picked up another 9" tube at the launch this weekend and have more plywood for the replacement fins. I spent a week grinding off the broken fins, body tube, and fiberglass reinforcement. I salvaged the motor tubes, triangle, and buttplate.

 

[CarVac]

I remember you said you narrowed the angle between the motors in order to fit 4-grain cases. If they were wider-set, I suspect the rocket may have flown safely on a single motor.

 

[Rocketjunkie]

I remember you said you narrowed the angle between the motors in order to fit 4-grain cases. If they were wider-set, I suspect the rocket may have flown safely on a single motor.

The 54 mm has an 11 deg cant, also to fit 4 grain cases. It flies fine on 1 motor. Binding on the rail sure didn't help, the 54 mm flies from a rod.

BTW, I glassed the replacement 9" tube today. The first 2 pictures are of the salvaged motor mount.

 

[bobkrech]

I believe in the FlisKits Deuce, the angle of the motors was chosen to put the thrust-lines through the CG so there is no turning moment if one motor fails to ignite and the flight will be stable and vertical.

 

[Gary Byrum]

EWE! Nose cone took a nice punch. I suppose that would have been expected since it went the way it did. Still got a pretty big job on your hands. Getting old epoxy off is tuff!

 

[Rocketjunkie]

EWE! Nose cone took a nice punch. I suppose that would have been expected since it went the way it did. Still got a pretty big job on your hands. Getting old epoxy off is tuff!

The Deuce nose cone is blue and is undamaged. The nose cone in the picture is from the Goblin, completely destroyed by a cato. The aluminum below and right of the nose cone is the remains of the case.