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Land vehicle motor, 7x9x2, 3300 power, 158ppf & partial derivatives / 2x4xn engines
2017-06-01, 05:39 PM (This post was last modified: 2017-10-07 09:05 PM by Richard Dastardly.)
Post: #1
Land vehicle motor, 7x9x2, 3300 power, 158ppf & partial derivatives / 2x4xn engines
I did this for someone hence the dimensions, thought it might be useful for others too even if it's just curiosity. I also didn't really have a plan as I started from a mixed injector/carb solution, so I'd be interested in improvements/better ways too...

[Image: 34902724961_1950ff54b5_b.jpg]
[Image: 36867870213_27281061ba_b.jpg]

Can't think of a marine application - I have vertical 2-wide split engines for catamarans around but that's even more niche - I guess you could stick one in an aircraft wing or something, but that sounds a bit odd.

3306 power /158ppf /20.9 fuel/s @ full once it's warmed up
193ppf /8.8 fuel/s at 50%

2x4 engines 327/522/1288ppf

7/10/17 - added some smaller motors based on parts of the big one, 800power @ 144-150ppf, and 1190power @ 153ppf


Attached File(s)
.blueprint  RD 7x9x2 3300p 158ppf .blueprint (Size: 47.25 KB / Downloads: 20)

Poke my boat! mostly pre-2.0 learning & catalogue thread - Heavy tanks 20/10/17. 6 ships made 2.0 aware. If it's not AotE I can't do it regularily - post processing gives me eyestrain at sea.
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2017-06-01, 06:03 PM (This post was last modified: 2017-06-01 06:04 PM by Guaibee.)
Post: #2
RE: Land vehicle turbosuper motor, 7x9x2, 3300 power, 158ppf
(For some background information, the request was 'as much efficiency as can be achieved for ~3k power within the space')
Quite an optimal design, my attempts at modifications ended up with either slightly higher efficiency and slightly less power or vice versa... though the maximum efficiency achieved makes an injector design in that space a more reasonable alternative (as opposed to larger/rounder engines with a few times the efficiency and similar/better power density).

Edit: 2 new engine threads in a day, nice... also, 500th post apparently.

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2017-06-01, 06:18 PM (This post was last modified: 2017-06-01 06:19 PM by Richard Dastardly.)
Post: #3
RE: Land vehicle turbosuper motor, 7x9x2, 3300 power, 158ppf
They actually wanted 3.3k power, so I had to do a lot of fiddling with radiators to keep it over 3.3. Was a fun challenge even if it's not that much more efficient in absolute terms than an injector. I suppose I'd rather use the space for engine than extra fuel tanks, engines don't empty themselves...

I have a few interesting but probably mostly useless engines lying around I should put on a raft some day.

Poke my boat! mostly pre-2.0 learning & catalogue thread - Heavy tanks 20/10/17. 6 ships made 2.0 aware. If it's not AotE I can't do it regularily - post processing gives me eyestrain at sea.
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2017-06-06, 07:24 PM
Post: #4
RE: Land vehicle turbosuper motor, 7x9x2, 3300 power, 158ppf
(2017-06-01 05:39 PM)Richard Dastardly Wrote:  I did this for someone hence the dimensions, thought it might be useful for others too even if it's just curiosity. I also didn't really have a plan as I started from a mixed injector/carb solution, so I'd be interested in improvements/better ways too...

[Image: 34902724961_1950ff54b5_b.jpg]

Can't think of a marine application - I have vertical 2-wide split engines for catamarans around but that's even more niche - I guess you could stick one in an aircraft wing or something, but that sounds a bit odd.

3306 power /158ppf /20.9 fuel/s @ full once it's warmed up
193ppf /8.8 fuel/s at 50%

I am curious as to what you mean by the '2-wide split' engines for a catamaran? Do you have an example? I'd love to see it

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Mods/extra blocks

After Cataclysm (and the separate 'railings' mod as well)
Dynamic Kinetics Simple Re-skin (armored glass)
Wrought Iron Armor
Structural Foam
Aero-alloy
More Corners 0.3
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2017-06-07, 06:57 AM (This post was last modified: 2017-06-07 07:03 AM by Richard Dastardly.)
Post: #5
RE: Land vehicle turbosuper motor, 7x9x2, 3300 power, 158ppf
The idea I had was originally that to save space in the centre of a catamaran for important stuff like weapons, to cut a 5x3 in half & stick half in each side hull ( as a 3x2 ) but that didn't work at all, so I sat down to try some 2x4s which relied on piping exhaust across the boat at some point. The examples I have are actually longer than intended for use ( it's much easier to just make one side longer to work on them ofc ) and in the end I just rearranged the centre of the various boats & used a 5x3 so these are just partially developed concepts, but they were also fun to do. I suspect there are better flat engine designs around but honestly I've only been building successful engines for a few weeks & haven't internally formalised how they work yet.

[Image: 34764699750_2b0b5cc6c4_c.jpg]


Attached File(s)
.blueprint  RD 2x4 engine dev.blueprint (Size: 68.64 KB / Downloads: 9)

Poke my boat! mostly pre-2.0 learning & catalogue thread - Heavy tanks 20/10/17. 6 ships made 2.0 aware. If it's not AotE I can't do it regularily - post processing gives me eyestrain at sea.
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2017-06-07, 04:34 PM
Post: #6
RE: Land vehicle turbosuper motor, 7x9x2, 3300 power, 158ppf
Now that's a very interesting design. 12.5PPBB at infinite length doesn't seem good in comparison to the 5x5s, but for 2x4 cross section that is quite a feat. I'd probably steal this for my engine platform if I ever decide to update it again. Great work!

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2017-06-08, 04:14 AM
Post: #7
RE: Land vehicle turbosuper motor, 7x9x2, 3300 power, 158ppf
(2017-06-07 04:34 PM)Guaibee Wrote:  Now that's a very interesting design. 12.5PPBB at infinite length doesn't seem good in comparison to the 5x5s, but for 2x4 cross section that is quite a feat. I'd probably steal this for my engine platform if I ever decide to update it again. Great work!

I'm just intrigued by the idea of building narrow engines in each pontoon and then exhaust piping them together through the hull... fascinating.

********************************
(Is in your ship, stealing your turrets!)

Mods/extra blocks

After Cataclysm (and the separate 'railings' mod as well)
Dynamic Kinetics Simple Re-skin (armored glass)
Wrought Iron Armor
Structural Foam
Aero-alloy
More Corners 0.3
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2017-10-06, 08:58 PM (This post was last modified: 2017-10-07 02:14 AM by Richard Dastardly.)
Post: #8
RE: Land vehicle motor, 7x9x2, 3300 power, 158ppf / 2x4xn engines
Added a couple of smaller motors intended for tanks again, more or less portions of the big one. 1350 power & 800 power, 144-150ppf for the little one, 128-155ppf for the larger one ( I'm pretty sure this can be improved a lot, one cyl is running very hot. OP updated.

Edit: indeed, 1192 power @153ppf seems a bit more useful, just removed one carb.

Poke my boat! mostly pre-2.0 learning & catalogue thread - Heavy tanks 20/10/17. 6 ships made 2.0 aware. If it's not AotE I can't do it regularily - post processing gives me eyestrain at sea.
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