Beyond The Sprues
Current and Finished Projects => Physical Models => Aero-space => Topic started by: The Big Gimper on October 15, 2013, 05:18:39 AM
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Here is my next installment on "How the Wright R-2600" took over the world.
Glenn. L. Martin in 1940 made a proposal to War Department for a very long range patrol, observation and navigation aircraft. Building the Vickers Wellesley under license as the Martin Montana (you know, big Sky, blue Sky etc), he changed the engine to a R-2600 and like most naval and observation aircraft, he changed the single cockpit to a big greenhouse.
Two models were ordered: O-48A for the USAAC and OSM-1 for the USN.
Here is my other Airfix B-25 Wright R-2600 mounted on a Wellesley. The engine just "slipped" on. I also cut down the fuselage to install a TBF canopy. This was a real pain as the Wellesley has two engine option so I had to trim and align 4 separate pieces. I will improve the cockpit by adding a 2nd tandem pilot and F4F external tanks at later date, the rest will be an OOB build.
(http://i1139.photobucket.com/albums/n547/CF-101B/Modeling%202013/IMG_0894.jpg) (http://s1139.photobucket.com/user/CF-101B/media/Modeling%202013/IMG_0894.jpg.html)
(http://i1139.photobucket.com/albums/n547/CF-101B/Modeling%202013/IMG_0892.jpg) (http://s1139.photobucket.com/user/CF-101B/media/Modeling%202013/IMG_0892.jpg.html)
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Off to a great start there !!! Which box are you going to build it out of ??? :)) ;)
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Big and good transformation, congratulations! :)
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Cool! Will this be the OSM-1? Please :-*
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That's quite looking the part. As what version you build, may we please have the most colorful one?
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Oooooo, me likey!!! If the USN bird is to be an observation aircraft then will it have floats??!! Please!!! 8)
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Hmmm that R-2600 really works. Great concept!
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With all of that additional horsepower up front would it not need a bit more tail at the back to control the beast ? The Wellesley certainly looks much better with an actual canopy and that R2600 up front.
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@ Jeff. Good point. Let me see what I can find in the parts bin. It now reminds me of the O-47.
(http://1-ps.googleusercontent.com/h/www.airpowerworld.info/other-military-aircraft/north-american-o-47.jpg.pagespeed.ce.cdz9CigBSw.jpg)
@ Cliffy B. Mike, I do not have any floats but that is not to say my next Wellesley or 3 won't be on floats. Suggestions are welcome on a good donor for the floats.
@ Elmayerle: Evan, it will not be a yellow bird but that does bring a pause for thought.
@ FAAMAN: Yes this will be the OSM-1. I'm looking at M-485 blue-gray on top and M-495 light gull gray on the lower surfaces. Depending on what I find in the decals spares box it may have the red white rudder and dots.
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Ohh yes! This just looks right.
One suggestion for adding to the tail is to add a fillet in the front of the fin.
I'm in awe of your creativity, Mr Gimper.
Brian da Basher
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I got lots of spare floats,if you would be interested send me a pm.
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interesting combination.. looking forward to more
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With all of that additional horsepower up front would it not need a bit more tail at the back to control the beast ? The Wellesley certainly looks much better with an actual canopy and that R2600 up front.
The Wellesley had 'an actual canopy', a rather sleek semi-bubble for the pilot, and the
Hercules powered Type 292 LRDU variant didn't require an increased fuselage length
with an engine in the same class as the R-2600.
BTW the Hercules and the R-2600 both had a diameter of 55".
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Time for an update.
Here is my Martin Maine OSM-1. The USAAF Wellesley will be the Montana.
I stripped out the cockpit and replaced it with a TBF cockpit. It has two pilots and a wireless operator / gunner. The 2nd pilot is also the navigator. The drop tanks are from a F-84. They have a nice 1940s look to them.
(http://i1139.photobucket.com/albums/n547/CF-101B/Modeling%202014/IMG_1014.jpg) (http://s1139.photobucket.com/user/CF-101B/media/Modeling%202014/IMG_1014.jpg.html)
(http://i1139.photobucket.com/albums/n547/CF-101B/Modeling%202014/IMG_1016-1.jpg) (http://s1139.photobucket.com/user/CF-101B/media/Modeling%202014/IMG_1016-1.jpg.html)
(http://i1139.photobucket.com/albums/n547/CF-101B/Modeling%202014/IMG_1018.jpg) (http://s1139.photobucket.com/user/CF-101B/media/Modeling%202014/IMG_1018.jpg.html)
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I think Ju.52-3m floats would work just fine for a Wellesley. They flew single engine Junkers bush-planes on floats in Alaska and Canada. I have built two wellingtons on Ju.52 floats. I ,laid out the struts on the last one using the CANT Z.506 for a pattern. I would certainly like to see a three engine Wellesley/Wellington hybrid on floats. Great work on your martin build, so far. Adios, Larry.
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That's one heck of an update! I like the new drop tanks. A lot.
Brian da Basher
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I have been diagnosed with MADS (Modelers Attention Deficit Syndrome) aka the Start, Stop, Stare, Start, Stop, Sad, Sherry, Shelf-of-Doom, Sympathy, and Success.
The starting date on this post/build was 2 years and 1 day ago. But through the miracle of modern medicine and some nice Apple Cider, I finally finished the kit. I finished it in US Marines vs USN as originally proposed. Painted with acrylic paint, many hairy sticks, primary decals from a J2F and other sources.
(http://i1139.photobucket.com/albums/n547/CF-101B/Modelling%202015/IMG_2441.jpg)
(http://i1139.photobucket.com/albums/n547/CF-101B/Modelling%202015/IMG_2439.jpg)
(http://i1139.photobucket.com/albums/n547/CF-101B/Modelling%202015/IMG_2443.jpg)
(http://i1139.photobucket.com/albums/n547/CF-101B/Modelling%202015/IMG_2445.jpg)
(http://i1139.photobucket.com/albums/n547/CF-101B/Modelling%202015/IMG_2449.jpg)
(http://i1139.photobucket.com/albums/n547/CF-101B/Modelling%202015/IMG_2451.jpg)
(http://i1139.photobucket.com/albums/n547/CF-101B/Modelling%202015/IMG_2453.jpg)
I wonder what the largest single engine aircraft (wing span) is?
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Great idea and concept!! :) :) :)
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I like!
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Very nice!! I like the way you finished this one up.
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I'm so glad you came back to this as it looks fantastic! I love the new canopy and engine, and the markings look quite nice on it. Bravo!
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That is just awesome! And great paint work, too. It looks airbrushed.
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:) :) :) :)
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and Success.
I confirm: finishing this marvel is a big success! :-*
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Nice one.
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That looks very right in that scheme
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That looks great! 8)
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Love it :-* Great transformation!
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Thank you for the great comments. I don't why I shelve what are not difficult to finish kits. Maybe one day they will find the gene which cause this.
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I like the new cowling which totally looks the part!
Your OSM-1 is a killer concept executed flawlessly!
Brian da Basher