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1:1 scale replica Atomic Bomb
Fat Man

by Damian Andrus



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Here is the 1:1 replica of the ‘Fat Man’ bomb that my company constructed for the Bradbury Science Museum in Los Alamos, New Mexico, USA. The addition of this replica to our 'Little Boy' completes the accurate representations of the first and only atomic bombs deployed in combat.

Delivery and installation took place on 26 February 2007.


This unit replaces a later version of the 'Fat Man' design that had been on display at the museum for a number of years. Due to classification concerns the Mark III was removed to a secure area. My company, Synthetic Authentics of Alba, Texas, in conjunction with Rob Pfaff, Mineola Pipe and Steel Fabricators – Mineola, Texas, were contracted to provide an accurate historical representation of the F-31 Fat Man combat unit dropped on Nagasaki, Japan, 9 August 1945.

We worked from de-classified period plans, photographs and interviews with surviving members of the assembly team and mission members to produce a highly accurate copy of the original unit. This replica is constructed primarily of steel, fiberglass, aluminum and polyurethane resin.


Synthetic Authentics has some interesting projects in store for the future. We’ll keep everyone advised as they develop.


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Text Copyright © 2007 by Damian Andrus
Page Created 10 April, 2007
Last updated 09 April, 2007

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