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Started by NARSES2, June 02, 2023, 06:46:26 AM

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kerick

#15
June 04, 2023, 08:28:57 AM Last Edit: June 04, 2023, 08:36:16 AM by kerick
Biggest problem is, from my understanding, is that a turbine engine runs best at high speed for a long time. This is great for aircraft and ships but a tank spends a great deal of time at or near idle. So the turbine ends up using lots more fuel than a diesel engine. It's all about the supply chain.
It's a little like re-engineing the B-52. Everyone agrees it should be done but nobody ponies up the money to do it. So the taxpayers money keeps going out the exhaust pipe.
" Somewhere, between half true, and completely crazy, is a rainbow of nice colours "
Tophe the Wise

Steel Penguin

#16
June 04, 2023, 10:19:42 AM
but conversely a turbine give unparalleled weight/ power ratios, which on the modern western tank is so something of a problem, its where the US went on the protection/ firepower/speed triangle,  they could get an advantage over the diesel / petrol engines in the area,  and the US army has the logistical tail, and capability's to use that .
All aspects of a tank are compromises, and a modern army "runs on doctrine as much as diesel"  i once saw written.
the things you learn, give your mind the wings to fly, and the chains to hold yourself steady
take off and nuke the site form orbit, nope, time for the real thing, CAM and gridfire, call special circumstances. 
wow, its like freefalling into the Geofront
Not a member of the Hufflepuff conspiracy!

Wardukw

#17
June 04, 2023, 12:30:40 PM
One massive advantage of a turbine over a diesel is extreme cold weather starting and running.
A diesel needs a ton of warm up time ..it also needs oils and fuel additives to keep everything liquid..ive seen oil look like tar in extreme cold and rubber hoses snap like their made of balsa wood.
A turbine can be started and hit full power even in stupid cold weather..like -30c + ..that was a test done on the Abrams before it entered service.
Also alot less moving parts.
As from a wiffy point of view..fitting a diesel to a Abrams could be a mod done for the sale of a much cheaper tank to countries who can't support anything to technical..simplified gun sites..simplified armour..a simple Abrams for a simple buyer ..great sales pitch  ;D
If it aint broke ,,fix it until it is .
Over kill is often very understated .
I know the voices in my head ain't real but they do come up with some great ideas.
Theres few of lifes problems that can't be solved with the proper application of a high explosive projectile .

zenrat

#18
June 05, 2023, 05:17:34 AM
If a turbine engine was good enough for Batman it's good enough for the US Army...
 ;)

Other than a Jet powered DH2 I have no firm ideas for this GB.
Fred

- Can't be bothered to do the proper research and get it right.

Another ill conceived, lazily thought out, crudely executed and badly painted piece of half arsed what-if modelling muppetry from zenrat industries.

zenrat industries:  We're everywhere...for your convenience..

PR19_Kit

#19
June 05, 2023, 08:22:50 AM
Quote from: zenrat on June 05, 2023, 05:17:34 AMOther than a Jet powered DH2 I have no firm ideas for this GB.


Should be good with an RB-211 on a pylon above the wing. The DH2's a very draggy airframe after all..............  ;)
Kit's Rule 1 ) Any aircraft can be improved by fitting longer wings, and/or a longer fuselage
Kit's Rule 2) The backstory can always be changed to suit the model

...and I'm not a closeted 'Take That' fan, I'm a REAL fan! :)

Regards
Kit

Steel Penguin

#20
June 05, 2023, 09:53:18 AM
ive done my lear and my Falcon,  but theouse were a set of engines from an A-10 onto the learjet, ( they are just a bought the same diameter as the fuselage )  and then the spares on the the Falcon,  so 4 rear mounted engines on that, the last bit of the move round was going to be 2 of the engines of a AC130, on to the A-10,  going to have them on the wheel housings ( all of the above were in 1:48)
the things you learn, give your mind the wings to fly, and the chains to hold yourself steady
take off and nuke the site form orbit, nope, time for the real thing, CAM and gridfire, call special circumstances. 
wow, its like freefalling into the Geofront
Not a member of the Hufflepuff conspiracy!

kerick

#21
June 05, 2023, 11:24:25 AM
I like the turbo prop A-10 idea!
" Somewhere, between half true, and completely crazy, is a rainbow of nice colours "
Tophe the Wise

Doug K

#22
June 05, 2023, 01:03:13 PM
As mentioned elsewhere I have in mind  are-engining of the Beaufighter, original thought was Centaurus (so a couple of Matchbox Tempests were acquired, then maybe Sabres would be fun, only to find that great mind think alike - see earlier on this thread!

So I do have a Merlin conversion set for the Beaufighter and the Beaufort is pretty much the same wing huh?

Wardukw

#23
June 05, 2023, 01:19:56 PM
Quote from: Doug K on June 05, 2023, 01:03:13 PMAs mentioned elsewhere I have in mind  are-engining of the Beaufighter, original thought was Centaurus (so a couple of Matchbox Tempests were acquired, then maybe Sabres would be fun, only to find that great mind think alike - see earlier on this thread!

So I do have a Merlin conversion set for the Beaufighter and the Beaufort is pretty much the same wing huh?
Just cause we're all great minds Doug don't mean ya still can't build ya idea mate.
I love the Beaufighter..alot of fire power in a small package..and it's a twin 😍
I've been looking over my Tigercat lately and yep I'm in for some work to mount 2 Griffons on that..the Griffons are alot narrower than the original radials .

And in the department of ugly mounting a Tigercat radial on a MK19 Spitfire   :wacko:
If it aint broke ,,fix it until it is .
Over kill is often very understated .
I know the voices in my head ain't real but they do come up with some great ideas.
Theres few of lifes problems that can't be solved with the proper application of a high explosive projectile .

Steel Penguin

#24
June 05, 2023, 02:08:36 PM
Kerick...  If you want to use it, please be my guest  :thumbsup:   i can think of no better accolade that having my ideas used by my peers  ;D   My version is a long way off at the moment as i have other "things" that i wish to build
the things you learn, give your mind the wings to fly, and the chains to hold yourself steady
take off and nuke the site form orbit, nope, time for the real thing, CAM and gridfire, call special circumstances. 
wow, its like freefalling into the Geofront
Not a member of the Hufflepuff conspiracy!

Wardukw

#25
June 05, 2023, 02:11:23 PM
Quote from: kerick on June 05, 2023, 11:24:25 AMI like the turbo prop A-10 idea!
Fitted with 5 bladed props so it looks lot more modern..like the props used on the late model C130s and M400.
That would look damn cool 😎
If it aint broke ,,fix it until it is .
Over kill is often very understated .
I know the voices in my head ain't real but they do come up with some great ideas.
Theres few of lifes problems that can't be solved with the proper application of a high explosive projectile .

The Wooksta!

#26
June 05, 2023, 02:37:42 PM
Quote from: Doug K on June 05, 2023, 01:03:13 PMAs mentioned elsewhere I have in mind  are-engining of the Beaufighter, original thought was Centaurus (so a couple of Matchbox Tempests were acquired, then maybe Sabres would be fun, only to find that great mind think alike - see earlier on this thread!

So I do have a Merlin conversion set for the Beaufighter and the Beaufort is pretty much the same wing huh?

Centaurus is too heavy for Beaufighter.  Read the relevant sections on the tortuous development of the Brigand in BSP Vol.3.

My own plan to do a Sabre Beau has foundered on the fact the replacement nacelles are mahoosive and just too big for the Beaufighter.

I've been wanting to do a Merlin Beaufort for some time and did look at using the Alleycat Merlin Beaufighter conversion on the Airfix new tool Beau, but it didn't quite fit.
"It's basically a cure -  for not being an axe-wielding homicidal maniac. The potential market's enormous!"

"Visit Scarfolk today!"
https://scarfolk.blogspot.com/

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The Plan:
www.whatifmodelers.com/index.php/topic

kerick

#27
June 05, 2023, 10:43:38 PM
Four CFM-56 engines on a B-52!
" Somewhere, between half true, and completely crazy, is a rainbow of nice colours "
Tophe the Wise

PR19_Kit

#28
June 06, 2023, 01:26:37 AM
Quote from: kerick on June 05, 2023, 10:43:38 PMFour CFM-56 engines on a B-52!


Might need a bit more poke than that, but it's a good start.
Kit's Rule 1 ) Any aircraft can be improved by fitting longer wings, and/or a longer fuselage
Kit's Rule 2) The backstory can always be changed to suit the model

...and I'm not a closeted 'Take That' fan, I'm a REAL fan! :)

Regards
Kit

Wardukw

#29
June 06, 2023, 01:52:16 AM
I've been nosey ...4 CFM-56 engines would definitely get a B-52 moving.
The lowest rated thrust is 18500 pounds..the T-33s one the 52 are only 17000lbs
If it was fitted with the most powerful version of the CFM-56 at 34000 lbs would give the 52 136,000 lbs from 4 engines .
Strangely 8 T-33s = the same ..136,000 lbs thrust.
The B-52 is getting new engines soon from Rolls-Royce but I'd still like to see a four engined B-52.
If it aint broke ,,fix it until it is .
Over kill is often very understated .
I know the voices in my head ain't real but they do come up with some great ideas.
Theres few of lifes problems that can't be solved with the proper application of a high explosive projectile .
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