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From: "Bond" <q9921879@mail.connect.usq.edu.au>
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Subject: Re: Mortar levelling devices?
Date: Tue, 17 Jul 2001 09:46:56 +1000
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As already mentioned, the simple tried and tested way is to use a sight
which has bubble levels which can be changed to any firing elevation. A
cross level bubble is also used so the direction is an offset from a aiming
post, which is at a designated bearing (usually grid). This all done with a
sight unit. The bipod has 3 moving drums, elevation, transverse and cross
level. These are used so the 2 bubbles (elevation & cross level) are
centralised.If the correct elevation and direction is set on the sight must
also look directly at the post.
I would be interesting knowing how any mortar systems are automated. Very
accurate fire could be done with minimal adjusting if GPS info is used into
a fire control computer. The person calling the fire could have a GPS and
integrated laser range finder, which would then give an exact postion.
I would like to know if the actual automation from a fire control computer
to the computer adjustment of bearing/elevation is done on the mortar and if
so how?
This type of system would make a mortar no longer man portable, but the
accuracy would be extremely good.
TTK Ciar <ttk@typhon.NOSPAM_REMOVE_THIS_AND_FRUIT.ciar.orange.org> wrote in
message news:9ikrtl0tpe@enews1.newsguy.com...
> What are some of the methods that have been used to determine the
> degree of angle between a mortar's support (baseplate and bipod) and
> true (gravitational) horizontal for the purposes of adjusting firing
> angle? Things that have occurred to me have been (1) using a level
> to find a flat spot to set up the mortar on, (2) eyeballing it and
> then walking fire to the target, and (3) hanging a weight suspended
> against a pair of vertical-plane compasses at right angles (one for
> X axis, one for Y axis) off which angles are read. But I hoped to
> get answers from people who might know, rather than speculating.
>
> Has anyone implemented an angle detection system which relays this
> information directly into a firecontrol computer for targetting? It
> seems to me that the Swiss anti-artillery artillery mentioned here a
> few weeks back (which detects mortar rounds en route and targets their
> source for counterbombardment) might benefit from something like that.
>
> -- TTK
>
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