Pendraken Miniatures Forum

Wider Wargaming => Genre/Period Discussion => 20th Century => Topic started by: Sunray on 07 June 2015, 01:48:03 PM

Title: early wire guided Anti tank missles
Post by: Sunray on 07 June 2015, 01:48:03 PM
My early 1960s era Banana Republic  army needs 1st generation wire guided anti tank missiles - the   Vickers Vigilant  type.  I have scratch built them out of  modified 1/144 Sidewinder rockets and plastic card control panels.

Does any one have the A/T and A/P for this type of weapon if I was using them with BKC era rules ?   

The Sagger proved quite effective against the Israeli Centurion in 1973.  Did the Vigilant have a similar clout ? 
Title: Re: early wire guided Anti tank missles
Post by: fred. on 07 June 2015, 02:32:58 PM
Had a quick google - as I don't know anything much about these weapons. They are shaped charged (which I kind of assumed) which means if they hit then their penetration will be really good.

I don't know how you represent the accuracy of early wire guided missiles - and the problems of the operator keeping the sights on target in a combat situation. I know the Israelis put a lot of MG fire down on any Sagger launch to make the operator hide and loose track of the target.
Title: Re: early wire guided Anti tank missles
Post by: Lord Kermit of Birkenhead on 07 June 2015, 03:00:26 PM
First off - there is one with a HESH warhead - Malkara, which comes on a modified Humber Pig.

Details - if you can get hold of it the old "Modern Vehicle Handbook" which was tied to Challenger 2000(ARGGGGGGGGGHHH) has all you need.

Real world data are :-

Entac _ 400- 2000m, pen of 65cm of RHA
SS-11 & harpon - 350 - 3000m pen of 60cm of armour
Cobra - 400-2000m  pen 45cm RHA
KAM-3D - 350-1800m - no pen for this one.
AT-2 Swatter - 600-2500m - no pen
AT-3 Sagger - 500 - 3000m - 45cm RHA
Vigilant 200-1375m - 55cm RHA

RHA = rolled hardened armour - ie simple steel.

I suspect that a basis of 1 die per 7.5 cm is about right. BKC has a ground scale of roughly 1-2000.

IanS
Title: Re: early wire guided Anti tank missles
Post by: Sunray on 07 June 2015, 04:47:53 PM
Thanks for this.  The WSI doctrine (after 1973) was wire guided missiles launch pad had to be within 10-15meters of the operators - so on seeing the flash you put suppressive fire from the GPMGs on  the operators if seen, or the potential cover.  The IDF proved that it worked.

I would be interested in working that aspect into the rules.  Unless an AVF or APC is buttoned up, the crew will see the launch and the missile in its (relatively) slow flight.  There is time for (a) evasive action and (b) suppressive fire, which must be added to hit/save element of the vehicle.

The modified Pig - we knew it as the Hornet. The Aussie Malkaras were massive missiles, too big to mount on  a Landrover or a Ferret.  The Hornet was restricted in issue to the Paras, or to be precise.  the RAC Parachute Squadron.
Title: Re: early wire guided Anti tank missles
Post by: Steeleye on 08 June 2015, 05:00:10 AM
I was in the ATGW Troop at the RAC school of gunnery at Lulworth Camp back in the mid 70's (1974-75). Although we had a couple of Mk 2/6 Ferrets equipped with Vigilant launchers they were only ever used as MG (Browning .30) armed vehicles. The only ATGW I saw used at that time were Swingfire missiles.

Bearing in mind that I wasn't actually trained on any ATGW (I was in fact a Chieftain gunner...go figure!?) and that the 70's is a long time ago, I seem to remember being told that the Vigilant was never issued in large numbers. It may have gone to units for troop tests but as far as I know it was never operational mainly because it wasn't considered very good. On the other hand I did spend a 'fun' afternoon using a Vigilant simulator...they wanted to see how well soldiers who'd not been trained on ATGW could use the weapon, I think I was about average, I hit the target three or four times out of god knows how many shots...those things are pretty hard to fly!

So, I'd be wary about using Vigilant on the wargames table unless of course you're using it in a non-historical setting.

If you're interested...

Firing procedure.
1) Cock the weapon. This was very like cocking a single action pistol with the 'hammer' positioned just behind the pistol grip.
2) Select target.
3) Aim and fire by squeezing the firing trigger.

At this point the missile launches and gains some altitude. You'll then see the missile drift downwards into your sight picture. I found that the best thing to do was to let the missile fly itself to the target as much as possible. You only took control of the missile (by squeezing another trigger) and flying it to the target (by a thumb operated joystick) only when you got close to the target (a couple of hundred yards). Otherwise the missile could go all over the place to such an extent that you could lose control of the damn thing. I can see why simply shooting in the direction of the suspected operator was so effective. As far as I know British army ATGW was generally fired from armoured vehicles until Milan came out which I'm told was a lot easier to operate.

Once again bear in mind that I was a TANK crewman and after my unit left Lulworth I had no further contact with ATGW.

I also remember being told that Soviet ATGW required a lot more practice to use that Western systems, although I've no idea how true that is.
Title: Re: early wire guided Anti tank missles
Post by: Rob on 08 June 2015, 10:32:22 AM
I hope the table below is of some use.  :)
Two points not covered up to now:
1. The penetration figure given in specification data does not equate to automatic kills if it exceeds the defending armour thickness, because the penetrating jet may not be of sufficient power. In the Guns V Armour site by Claus Bonnesen and  David Honner they estimate that 150 -200mm over penetration is required for a kill.
http://amizaur.prv.pl/www.wargamer.org/GvA/background/ammotypes11.html (http://amizaur.prv.pl/www.wargamer.org/GvA/background/ammotypes11.html) http://amizaur.prv.pl/www.wargamer.org/GvA/index.html (http://amizaur.prv.pl/www.wargamer.org/GvA/index.html)

2. Early and most late guided weapons cannot hit at very close range because the guidance system has to pick up the missile in flight. So there was a minimum range that a target could be engaged at. With earlier missiles this would be quite big i.e. 500 mteres or so.

The table below gives basic information, penetration band, likely percentage chance of a hit, and in the last notes column ATGW that fit into this category. (Ignore the bits in the middle they are used in my own rules.)


UNIT TYPE   % hit   penetrate   2   4   8   12   20   notes
ATGM HEAT      in MM   500m   1000m   2000m   3000m   5000m   
pen up to 400 RHA   65%   400   7   15   13   11   8   
                    75%   400   9   17   16   13   9   AT-1 Snapper, AT-3 SaggerB
                    80%   400   9   18   17   14   10   AT-4 Spigot A
                    90%   400   10   21   19   16   11   
pen up to 500 RHA   65   500   9   18   16   14   10   AT-2 Swatter A and B, AT-3 SaggerC
                    75   500   11   21   19   16   12    AT-4 Spigot B, AT-7 Saxhorn
                    80   500   11   22   20   17   12   AT-2 Swatter C, Dragon
                    90   500   13   25   23   19   14   
pen up to 600 RHA   65   600   11   21   19   16   12   SS11, Vigilant
                    70   600   12   23   21   17   13   AT-5 Spandrel, AT-6 Spiral
                    75   600   12   25   22   19   14    Shillelagh
                    80   600   13   26   24   20   15   AT-9 Ataka, AT-12 Sheksna
                    90   600   15   30   27   22   16   AT-8 Songster/Kobra, Milan 1, Javelin(top attack)
pen up to 700 RHA   65   700   12   25   22   19   14   
                    70   700   13   27   24   20   15   
                    75   700   14   29   26   21   16   
                    80   700   15   30   27   23   17   AT-10 Stabber
                    90   700   17   34   31   26   19   AT-11 Sniper, Refleks 1985
pen up to 800 RHA   65   800   14   28   25   21   15   Malkara
                    70   800   15   30   27   23   17   AT-5 improved Spandrel
                    75   800   16   32   29   24   18   TOW, HOT, Swingfire
                    80   800   17   34   31   26   19   AT-11 Sniper, Refleks 1989, AT-15 Krizantema
                    90   800   19   39   35   29   21   later Swingfire, Milan 2
pen up to 900 RHA   75   900   18   36   32   27   20   
                    80   900   19   38   35   29   21   AT-11 Sniper, Refleks 2006, AT-13 Metis-m
                    90   900   22   43   39   32   24   Hellfire, Milan 3
pen up to 1000 RHA   70   1000   19   37   33   28   20   
                    80   1000   21   42   38   32   23   
                    90   1000   24   48   43   36   26   
pen up to 1100 RHA   70   1100   20   41   37   30   22   
                    80   1100   23   46   42   35   26   
                    90   1100   26   52   47   39   29   HOT2
pen up to1200 RHA   75   1200   24   47   43   35   26   TOW2
                    80   1200   25   50   45   38   28   AT-14 Kornet
                    90   1200   28   57   51   43   31   
pen up to 1300 RHA   70   1300   24   48   43   36   26   
                    80   1300   27   54   49   41   30   
                    90   1300   31   61   55   46   34   HOT3 TOW2B
pen up to 1400 RHA   70   1400   26   51   46   38   28   
                    80   1400   29   58   53   44   32   
                    90   1400   33   66   59   49   36   
pen up to 1500 RHA   70   1500   27   55   49   41   30   
   80   1500   31   62   56   47   34   Maverick
   90   1500   35   70   63   53   39   TOW3, Brimstone

Bugg*#, I cannot get the tablle columns to play :(. Hope you can still understand it.
Cheers Rob  :) :)
Title: Re: early wire guided Anti tank missles
Post by: Sunray on 09 June 2015, 10:47:47 AM
I am obliged to Rob for taking the time to annotate  this very playable solution table, and to Steeleye for his experiences.

As a 70s infantryman my 'experience' in my dealings  with Support Coy was with the Wombat, which soldiered on for a long time. I recall them still in Berlin in the 80s!

It was not until years later on a confidential BAT posting that I saw the Vigilant being used by a client state's armed forces.  I remember being told that they were about £500 per round, and stocks were very limited. The 73 experience in Sinai seemed to give a new status to the wire guided AT weapons.

  Then the Milan came on the market, and the client being cash rich traded up.

Anyway, the way my scratch build as turned out - its a Sagger !

Thanks again to all on the forum for help and assistance.