Airsoft mortar

I think you'll struggle for answers for a lot of those questions, our explosives rules are pretty tight over here, so we don't really muck about with 'em.

Having said that, I manufactured a replica 2" Brit mortar, it can either fire CO2 moscarts (I sleeved them, and you just drop them down the barrel onto a pin) or the 2 part TLSFX shells. The moscarts have a range of 20m or so when fired indirectly, but it's good fun.

Has anyone disassembled a TLSFx mortar round to see how it works,

Thats rather naughty and a little dangerous. Years of trials, testing and meeting of legislation {any idea just how tricky it is to build a devise and get the right permissions to even transport it on the roads of the UK?} go into developing pyrotechnic devices and you are proposing to steal their technology. What you are proposing is theft of intellectual property and the modification of articles pyrotechnic take it outside of its design and make the device illegal.
I dont recommend trying to make your own pyro unless you have some experience with handling the required components.

What you are proposing is theft of intellectual property

No, what I am proposing is taking it apart to understand how it works. If you take an AEG apart to figure out how all the bits work together to send the BB down the barrel, does that constitute 'theft of intellectual property'? If said understanding allows you to modify and improve you AEG, does that constitute 'theft of intellectual propert'?

@ dieselmonkey:
20m is... not quite what I am looking for. We have had all kinds of fun using MOSCARTS that way, but it tends to be short-ranged affairs - more like shotguns than mortars

One used at the last airsoft event used blanks which fired an already lit grenade towards its target.

Stu

what I am proposing is taking it apart to understand how it works.

If you then use what you have learned, reverse engineering your own version, then that is theft of intellectual property.
You want to make an airsoft mortar, you work it out.

I would imagine that the 2 part TLSFX mortar round works on the same principal as a standard fire work mortar round i.e. it'll have a lofting charge and a time delay fuse for the bursting charge http://www.instructables.com/id/How-to-Make-Fireworks/ the key to getting it to work as you want it will be to get the lofting charge and the time delay right so that it will actually touch down before going off instead of going off in the air.

Depends whether you want it to POP! on impact or throw smoke - we are leaning towards the smoke option, which is as simple as connecting the smoke grenade fuse to the propellant fuse, and then lighting both before dropping the round into the tube. Nothing fancy there, and probably a bit more reliable. Also a tad safer, given that things that go POP! explosively can be slightly dangerous to unprotected faces...

No hits on deact/replica mortars though?

Mortars have been around for some 550years. It's a bit late for worrying about "reverse engineering" and stealing the intellectual property of the Ottomans .

Different kinds of blank firing mortars are made by Elite Militaria
https://www.facebook.com/pages/Elite-Mi ... 15?fref=ts
You can probably use them to fire a pyro.

The Evike mortar:
http://www.youtube.com/watch?v=4gn6Eq1GFy8

It's probably easiest to just get a replica one (quite a few sources on the web) and stuff TLSFX one inside. In fact the YT demo of TSLFX shows just that.

Its the technology of the mortar round that is the topic not mortars themselves.

Taking apart fireworks in order to attempt DIY versions sounds a very foolhardy endeavour. Apart from possibly being in breach of all sorts of local regulations, consider the consequences of another person being injured by your home-made pyro. How would that play out in a court of law?
If you want to blow your own fingers off, that's up to you. But blowing the fingers off other people is a different thing entirely.

All you need is a tube, something to produce propulsion (either gas or a spring) and something which has the correct effect upon impact. A very simple impact fused, blank firing system using some form of short burn rocket motor for propulsion (or similar) could be made quite easily. You could even use a flammable gas and ignite it. Just whatever you do, take care around anything with any likely hood of going BOOM!
Such a system would of course be highly illegal in the UK- in reality to meet UK legislation it needs to be a 2 part system with an un-stabilised projectile. The challenge is making a system which is legal for UK use, and at some point I'm hoping to look at making a "working" 2" mortar (to be used with site permission of course!)

at some point I'm hoping to look at making a "working" 2" mortar (to be used with site permission of course!)

They already exist, using the TLSFx system.

at some point I'm hoping to look at making a "working" 2" mortar (to be used with site permission of course!)

They already exist, using the TLSFx system.

Aye, but they use a 2 part pyro, and may be bulky(?). I'm hoping for something a bit closer to the original but still legal- I really don't want to get on the wrong side of a mandatory sentence and end up being friends with someone calling themselves "Bubba"

[Aye, but they use a 2 part pyro, and may be bulky(?)

Have you seen one? It doesnt sound like you have.
Its one unit and has a diameter of less than 40mm.

I really don't want to get on the wrong side of a mandatory sentence

After the pyro law changes on July 4th you will be if you start making devices at home without approval I think?

[Aye, but they use a 2 part pyro, and may be bulky(?)

Have you seen one? It doesnt sound like you have.
Its one unit and has a diameter of less than 40mm.

No, I haven't, thus the question mark I was under the (wrong) impression that they were what I had previously seen used in a video. However from what I can gather they are smoke only? And also don't you need some form of pyro license for them?

I really don't want to get on the wrong side of a mandatory sentence

After the pyro law changes on July 4th you will be if you start making devices at home without approval I think?

Have you got a linky, I would like a peruse if possible!

However from what I can gather they are smoke only? And also don't you need some form of pyro license for them?

There are options, early production had some teething troubles with the bang version.
For someone who wants to build his own pyro you don't seem to know the first thing about it? I suggest you do some reading on the current law and the law that comes into effect 04/07/13. Learn about the various class of pyro and fireworks, what a PSK is and so you will know who can buy what and who can use what. Its all on http://www.legislation.gov.uk/ search 'pyrotechnic 2010' other laws are from 2004 search 'fireworks 2004'. Save up and do a pyro course, its important to know how to use it before you try to build it.

For someone who wants to build his own pyro you don't seem to know the first thing about it?

What I'm thinking of is not actually pyro based, I figured the easiest way around the pyro laws is to avoid using pyros completely! I'm not sure this concept will actually work, but I reckon it's worth a punt. I don't pretend to know very much about pyros at all- thus my earlier comments In my defence the initial statement about the TLSFx units was meant to be a question, I was just knackered and cocked up the post I can assure you that I would do the required research before even touching a pyro. Thanks for the leads though, they should make for interesting reading if I did want to go down the pyro route