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

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zenrat

#45
June 08, 2023, 04:47:00 AM
Quote from: Wardukw on June 06, 2023, 01:20:47 PMScooter mate that is a normal way to test bed a jet but if ya look at Fred's pic it's a bad way it was done.
The picture shows a B-25 with one radial engine on its port side wing and a jet replacing the radial on the other.
The balance alone would suck let alone the power problem.

It was from the movie Sucker Punch.  It was built that way for fighting dragons.
 :wacko:
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..

mat

#46
June 08, 2023, 05:06:44 AM
Citroën produced 694 of the 2CV Sahara 4x4 with TWO engines. One in front and one in the back. What a conversion!

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scooter

#47
June 08, 2023, 05:54:19 AM
Quote from: zenrat on June 08, 2023, 04:47:00 AMIt was from the movie Sucker Punch.  It was built that way for fighting dragons.
 :wacko:

A fun fantasy romp, that leaves you wondering at the end.
The F-106- 26 December 1956 to 8 August 1988
Gone But Not Forgotten

QuoteOh are you from Wales ?? Do you know a fella named Jonah ?? He used to live in whales for a while.
— Groucho Marx

My dA page: Scooternjng

AeroplaneDriver

#48
June 08, 2023, 08:59:09 AM
Quote from: Dizzyfugu on June 06, 2023, 02:53:27 AM
1:200 Boeing B-52K 'Stratofortress B.I', "ZA447/(AJ)G" of  Royal Air Force 617 Squadron; Waddington, England, 1999, during 'Operation Allied Force' (Whif/Dragon kit conversion) by Dizzyfugu, on Flickr

With four RB211s. Looks good, but ground clearance is a serious issue -I should have shortened the pylons, esp. the outer ones.

Re-engining the B-52 with four big fans was looked at several times and I think I've read that the RB-211 was looked at at some point. One of the biggest issues with going with 4 engines was controllability in the event of an outboard engine failure.  There would have had to be some significant modification to the vertical stabilizer and rudder apparently. 
So I got that going for me...which is nice....

Mossie

#49
June 08, 2023, 11:16:45 AM Last Edit: June 08, 2023, 11:21:31 AM by Mossie
Quote from: NARSES2 on June 03, 2023, 06:03:19 AMTrying to think of something to stick a Centaurus on the front of ?

Corsair should be an easy fit. It has the same circular section in the nose, unlike several other R2800 powered aircraft that have an egg shaped cowling. It wouldn't change the appearance much, except for the spinner and exhaust scheme.

I've tested the opposite, an R2800 cowling (from a CL-215) on a Sea Fury.  It'll fit, with some fettling.

I don't think it's nice, you laughin'. You see, my mule don't like people laughin'. He gets the crazy idea you're laughin' at him. Now if you apologize, like I know you're going to, I might convince him that you really didn't mean it.

The Wooksta!

#50
June 08, 2023, 01:09:43 PM
Centaurus Corsairs are so passe. Been done at least twice.
"It's basically a cure -  for not being an axe-wielding homicidal maniac. The potential market's enormous!"

"Visit Scarfolk today!"
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jcf

#51
June 08, 2023, 01:59:23 PM
Quote from: NARSES2 on June 03, 2023, 06:03:19 AMTrying to think of something to stick a Centaurus on the front of ?
P-47 in an installation similar to the XP-47J, cylindrical Centaurus cowling with a chin.

XP-47J

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jcf

#52
June 08, 2023, 02:19:36 PM
Something to bear in mind when engine swapping with aircraft models is the relative lengths and weights
of the engines being exchanged and the locations of the firewall and ancillary equipment.

The R-2800 to R-4360 change on the Corsair is a good example. The R-2800 used on the Corsairs had
a two-stage supercharger system using the engine's integral supercharger with a separately mounted
auxiliary supercharger and induction system plumbing mounted to the rear of the engine. The R-4360
used on the F2G was a single-stage engine that only used the integral supercharger.

The result was that forward of the firewall there was little change in overall length, as the photo of the
original conversion, the F4U-1W, and a standard F4U-1 demonstrates. The drawing demonstrates how
removing the two-stage supercharger system of the R-2800, oil tank etc. (upper drawing) allowed for
a very neat installation of the R-4360.



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Wardukw

#53
June 08, 2023, 02:55:38 PM
Had similar thoughts Jon on the Tigercat engine swap..weights was on the mind .
The Tigercats R-2800 -34w engines weight in at 2360lbs (1.073kgs) .
The Griffon 65 weight in at 1980lbs (900kgs) .
Admittedly there's bugger all difference but with the 2 Griffons saves 380lbs (172kgs) ..so that might help a little  <_<
Lenght is a thing tho..they are pretty much the same  ;D
P&W R-2800 ...without the supercharger is 81.4in (2068mm)
Griffon 65 is 81in (2057mm) .
Now I don't know if that's just the block length or overall..but still I've still got a crap load of work to make these fit the Cat.
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 .

Mossie

#54
June 08, 2023, 03:15:42 PM
Quote from: NARSES2 on June 03, 2023, 06:03:19 AMTrying to think of something to stick a Centaurus on the front of ?

Chris, assuming it's from a Tempest rather than a Sea Fury, it might fit on a Fairey Firefly?  I've got a Frog Firefly I but I've mislaid the Matchbox Tempest II cowling I have so can't check. Another possibility is a Barracuda.
I don't think it's nice, you laughin'. You see, my mule don't like people laughin'. He gets the crazy idea you're laughin' at him. Now if you apologize, like I know you're going to, I might convince him that you really didn't mean it.

jcf

#55
June 08, 2023, 06:42:15 PM
The Griffon engine weight is the engine only, it doesn't include the weight of the cooling system. 
Engine installed lengths are generally measured from the front of the engine, including propeller reduction gear box if so equipped, to end of the last engine mounted assembly or equipment. 

AeroplaneDriver

#56
June 08, 2023, 07:50:34 PM
Quote from: The Wooksta! on June 08, 2023, 01:09:43 PMCentaurus Corsairs are so passe. Been done at least twice.

Well if it's already been done then yeah, let's never try it again. That's the Spirit of Whiffery. 
So I got that going for me...which is nice....

Dizzyfugu

#57
June 08, 2023, 11:55:43 PM
Quote from: Mossie on June 08, 2023, 11:16:45 AM
Quote from: NARSES2 on June 03, 2023, 06:03:19 AMTrying to think of something to stick a Centaurus on the front of ?

Corsair should be an easy fit. It has the same circular section in the nose, unlike several other R2800 powered aircraft that have an egg shaped cowling. It wouldn't change the appearance much, except for the spinner and exhaust scheme.

I've tested the opposite, an R2800 cowling (from a CL-215) on a Sea Fury.  It'll fit, with some fettling.

Have this on my agenda, too - a background for a special RN version that came too late for WWII has already been written, and both kit and resin Centaurus are at hand. Might be a project for the upcoming "Re-engined GB"?   :mellow:

Wardukw

#58
June 09, 2023, 12:56:35 AM
Quote from: Dizzyfugu on June 08, 2023, 11:55:43 PM
Quote from: Mossie on June 08, 2023, 11:16:45 AM
Quote from: NARSES2 on June 03, 2023, 06:03:19 AMTrying to think of something to stick a Centaurus on the front of ?

Corsair should be an easy fit. It has the same circular section in the nose, unlike several other R2800 powered aircraft that have an egg shaped cowling. It wouldn't change the appearance much, except for the spinner and exhaust scheme.

I've tested the opposite, an R2800 cowling (from a CL-215) on a Sea Fury.  It'll fit, with some fettling.

Have this on my agenda, too - a background for a special RN version that came too late for WWII has already been written, and both kit and resin Centaurus are at hand. Might be a project for the upcoming "Re-engined GB"?   :mellow:
Knowing you Thomas it will be something pretty damn impressive 😉
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 .

NARSES2

#59
June 09, 2023, 05:57:36 AM
Quote from: Mossie on June 08, 2023, 03:15:42 PM
Quote from: NARSES2 on June 03, 2023, 06:03:19 AMTrying to think of something to stick a Centaurus on the front of ?

Chris, assuming it's from a Tempest rather than a Sea Fury, it might fit on a Fairey Firefly?  I've got a Frog Firefly I but I've mislaid the Matchbox Tempest II cowling I have so can't check. Another possibility is a Barracuda.

Cheers Mossie I'll have a look  :thumbsup:
Do not condemn the judgement of another because it differs from your own. You may both be wrong.
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