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LEGO models my own creation MOCpages toys shop Martin PBM-5S MarinerFlight
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Martin PBM-5S Mariner
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About this creation
PBM is an acronym for “Patrol Boat Martin.” This “flying boat” entered service with the US Navy and the Coast Guard shortly before WWII. A total of 1,366 were built. The plane’s fuselage was 188 feet long, 3 feet longer than its contemporary companion, the Consolidated PBY Catalina flying boat. Yes, unlike my Lego model, these huge planes actually float. The PBM’s crew of 7 included gunners operating in the tail and atop the fuselage. My Lego model shown here is built to mini-fig scale – I added two pilots standing in the foreground and in front of a step ladder in order to help you see its scale. The plane uses 642 Lego elements – many of them ‘invisible’ which tell the real (and unfinished) story here. Without internal cross-bracing, it is quite likely in real life a Lego model this big would just fall to pieces you tried to pick it up by its wings or even its fuselage. I wanted to honor the Lego ethic of not expecting glue to hold the pieces together. So, the challenge in my design work centered on structural integrity issues identified only by my imagination, because LDD doesn’t simulate the effects of gravity. I reinforced the connections lengthwise through the fuselage and crosswise through the wings. As a result of all that layering of reinforcements, open space inside the 'skin' is mostly non-existent. I will only know whether I succeeded in achieving structural integrity if I build the actual model from my virtual design, but I have no current plans for that. Below you see 3 profile views of my MOC:



Here are links to some of my other seaplane designs:
Dornier DO X
Savoia-Marchetti S.55
Sikorsky S-38 Amphibion



Comments

 I like it 
  December 30, 2017
good job! in the absence of the simulation of gravity, but resorting to thousands of hours of construction in the field, I would like to give you a suggestion: perhaps only a hybrid solution with technical parts would give sufficient structural strength to the connection of the semi-wings. in any case, beautiful MOC!
 I like it 
  December 30, 2017
Excellent build!
 
By Tom's MOCs
Add to my favorite builders

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Added December 30, 2017
 

The background images used on this page are © Todd Lehman,
available at http://www.lugnet.com/fibblesnork/lego/backgrounds/


LEGO models my own creation MOCpages toys shop Martin PBM-5S MarinerFlight


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