B-47 Maritime patrol bomber

scooter · October 09, 2019, 09:22:35 AM

What about 6x TF-34s or CF-34-3s? Use 4x A-10 pods...prodded, and 2x singles. Or even if you just use 4x TF-34s, you get, roughly, an extra 800-1000 lbf and a marked improvement in fuel (and oil) consumption.

The things I think about on the train...

chrisonord · October 09, 2019, 11:05:33 AM

That could work for an in service during the 1970's version, I think turbo fan engines would look good on it.

jcf · October 09, 2019, 11:46:50 AM

Based on the description the engine installation would have been similar to that of the B-47C/XB-56,
but with shorter pylons and the engines not as far forward.

chrisonord · October 09, 2019, 01:54:56 PM

Nice find John, and incorporates a lot of the ideas I was thinking. I am thinking of putting some extra windows in the fuselage of mine too, maybe a couple of observation blisters in different places too if I have some spare.
Chris.

PR19_Kit · October 09, 2019, 03:15:07 PM

It looks very odd with the inner engines hung off the side of the pylons, but the other side has the outriggers there of course.

chrisonord · October 09, 2019, 03:39:31 PM

Quote from: PR19_Kit on October 09, 2019, 03:15:07 PM
It looks very odd with the inner engines hung off the side of the pylons, but the other side has the outriggers there of course.

It certainly does Kit, looks like I have glued them on

I think will go with the two pairs of podded engines on mine, I might make them slightly wider so as to accommodate the Olympus engines. The pylon for the outer engines could have permanently fitted fuel tanks on them. Mine will be for attacking shipping, an3 not submarines, so won't be getting any of the associated gubbins for that job. Several 30 mm cannons, possibly four of, in the nose, and a large search radar either retractable or built in to the nose.
Chris

jcf · October 09, 2019, 04:15:21 PM

As to the wings, many B-47s went through a wing strengthening mod when the low-level bombing role was introduced.

simmie · October 10, 2019, 03:28:08 AM

Of course, you could just use the XB-47D as the basis of a patrol bomber.

chrisonord · October 10, 2019, 10:43:09 AM

Whilst rooting out some ordnance for my RAF F-105 F, I come across a few incomplete RB 04 anti ship missiles, which on my future build at least would be in service around the same time. A pair of these hung from the wings could work. I just need to scratch build the outer fins, as each has one missing.
Chris.

sandiego89 · November 08, 2019, 07:14:01 PM

Quote from: chrisonord on October 06, 2019, 11:24:49 AM
The tandem layout would be a problem for long haul missions so a different cockpit would be better. I will see what I have in the spares boxes that could be used.
Chris

I think the tandem layout is fine. The B-47 had a walkway along the port side that the pilot and co-pilot could climb down from their seats and get a break, change positions etc. The B-47 conducted very long endurance missions with refueling.

Here is my recent B-47 build with 4 engines from the Group Build. Four TF-33's (JT3D) provided more power than the original 6 engines. Maybe the RAF could nick a few engines from BOAC 707's....

PR19_Kit · November 08, 2019, 08:56:52 PM

Quote from: sandiego89 on November 08, 2019, 07:14:01 PM

Here is my recent B-47 build with 4 engines from the Group Build. Four TF-33's (JT3D) provided more power than the original 6 engines. Maybe the RAF could nick a few engines from BOAC 707's....

Actually most of BOAC's 707s had RR Conways, but they bought a couple of ex-Seaboard World freighters later on that had JT3Ds

chrisonord · November 09, 2019, 01:18:24 AM

That's a very nice build Sandiego, finding a det of those engines in 1/72nd scale could be a problem. Where did you get those from please?
Chris

sandiego89 · November 09, 2019, 06:43:07 AM

Quote from: chrisonord on November 09, 2019, 01:18:24 AM
That's a very nice build Sandiego, finding a det of those engines in 1/72nd scale could be a problem. Where did you get those from please?
Chris

Mine was 1/144 sorry.

Engines sourced from the Minicraft E-3 AWACS

Side by side engines. Larger TF-33 on bottom next to exacto knife, smaller J-47 as originally equipped on a real B-47 (outer engine) above.

Build thread https://www.whatifmodellers.com/index.php?topic=46902.0

chrisonord · November 09, 2019, 06:52:17 AM

Cheers for the reply, I think I will stick to the original plan with mine and say that they are rolls Royce Olympus engines. They should give it a bit more top end poke too, and be readily available during the timeline of this aircraft.

Chris

kitnut617 · November 09, 2019, 08:32:01 AM

Chris, the Airfix 1/72 Boeing E-3D kit AWAC has those engines as an option, it also comes with the CF56 engines. (at least mine did)