LAW M72 update

Anti-Tank, Cold War, Custom builds, LAW, War on Terror, Weapons

I’ve been working quite hard on the LAW rocket launcher this month so far, with lots of plastic work!

I had the fortune to find two pieces of pipe which had corresponding inside and outside diameters, allowing one piece to slide snugly inside the other. My client had a model of an earlier type of LAW and had sent me the trigger mechanism housing from it (in green below) to work from.

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I created a wooden mould from photographs of the A7 in order to be able to form this complex shape. My initial idea was to build a vacuum former but before going to the expense of doing that I thought I’d have a go at forming with a heat gun…
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Pushing the plastic into the former.

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My second attempt, getting the sharp edge in front of the trigger is pretty well impossible with this technique without splitting the plastic or creating a crease so it looks like I’ll have to build a vacuum former after all!

I also ran some tests on nerf balls to see how they performed ballistically. When put in the end of the 50mm bore tube I was planning on using for the barrel it barely fell out the end when the grenade was actuated. I then tried a smaller bore pipe which sat just around the end of the nerf ball. This produced a much better effect, shooting it maybe 10 yards.

I decided that a slightly different approach was needed. I have been playing with the idea of expanding foam rockets as an inexpensive, disposable missile system. I made a mould up from some plastic tubing…

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The three components: the body tube (top), nosecone former (bottom right) and the backcap (left). I have inserted the tail fins into slots at the top. I am yet to make a rocket from it yet however! I think that this will produce a more ballistically viable rocket that will also be cheap to reproduce if lost.

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