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In the beginning there was an altimeter - Meggitt PLC

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SWARM<br />

Up to now, <strong>the</strong> limiting factor<br />

precluding remote-controlled<br />

swarming boat targets <strong>was</strong><br />

<strong>the</strong> requisite communications<br />

backbone to support such a<br />

large group of vehicles<br />

> Rock Gunnery School within <strong>the</strong><br />

Esquimalt base. Four operators each<br />

controlled four Hammerheads, with a<br />

‘mission comm<strong>an</strong>der’ co-ordinating <strong>the</strong><br />

entire flotilla. Relays of four Hammerheads<br />

were brought into a formation <strong>an</strong>d all<br />

followed pre-programmed waypoint<br />

navigation tracks.<br />

“Up to now, <strong>the</strong> limiting factor<br />

precluding such exercises has been<br />

<strong>the</strong> inability of establishing <strong>the</strong> requisite<br />

communications backbone that c<strong>an</strong><br />

support such a large group of vehicles,”<br />

says Fraser.<br />

“What used to happen <strong>was</strong> that in<br />

traditional comm<strong>an</strong>d <strong>an</strong>d control systems<br />

you would have <strong>an</strong> up link <strong>an</strong>d each vehicle<br />

would tr<strong>an</strong>smit back on a separate down<br />

link. One c<strong>an</strong> immediately see why <strong>an</strong><br />

old format system will not work for this<br />

type of exercise because you would need<br />

17 frequencies <strong>an</strong>d a 53-foot trailer full<br />

of radio equipment.” That, he adds, is<br />

assuming frequency approvals could even<br />

be obtained from national authorities for<br />

that m<strong>an</strong>y frequencies <strong>an</strong>d providing <strong>the</strong>re<br />

would be no electro-magnetic interference<br />

in what are increasingly crowded<br />

waveb<strong>an</strong>ds.<br />

00 6<br />

REVIEW | WINTER 2010<br />

Above & right:<br />

Hammerhead is<br />

<strong>Meggitt</strong>’s adv<strong>an</strong>ced<br />

unm<strong>an</strong>ned surface<br />

vehicle target<br />

(USV-T) with <strong>an</strong><br />

award-winning<br />

surface-effect<br />

hull that is highly<br />

efficient in high<br />

seas at high<br />

speeds.<br />

The secret to being able to control so<br />

m<strong>an</strong>y vessels on a single half-duplex UHF<br />

frequency, says Fraser, is sophisticated<br />

multiplexing of <strong>the</strong> signal, using ultrarapid<br />

switching times between individual<br />

vessels—a world first from <strong>Meggitt</strong>, which<br />

has been working on <strong>the</strong> project for four<br />

years with support from <strong>the</strong> C<strong>an</strong>adi<strong>an</strong> Navy.<br />

A second unique feature of MTSC’s<br />

technical solution is building its system<br />

around <strong>an</strong> open st<strong>an</strong>dard—of increasing<br />

interest to customers. <strong>Meggitt</strong>’s UTCS is<br />

compli<strong>an</strong>t with NATO st<strong>an</strong>dard STANAG<br />

4586, a basic interoperability st<strong>an</strong>dard<br />

originally intended only for unm<strong>an</strong>ned air<br />

vehicles (UAVs) but which <strong>Meggitt</strong> has now<br />

exp<strong>an</strong>ded to h<strong>an</strong>dle unm<strong>an</strong>ned surface<br />

vehicles.<br />

As a result, says Fraser, “We’re now<br />

able to replicate with a high degree of<br />

fidelity one of <strong>the</strong> major asymmetric threats<br />

facing western navies today. We’ve already<br />

received several enquiries from several<br />

international customers asking how we<br />

m<strong>an</strong>aged to achieve this.” He adds that <strong>the</strong><br />

system is now deployed with <strong>the</strong> C<strong>an</strong>adi<strong>an</strong><br />

Forces <strong>an</strong>d that several navies w<strong>an</strong>t MTSC<br />

to put toge<strong>the</strong>r a full-scale swarm attack<br />

exercise for <strong>the</strong>m.<br />

The close engagement of <strong>the</strong> swarmex<br />

<strong>was</strong> likened by a C<strong>an</strong>adi<strong>an</strong> naval observer<br />

to “a punch-up in a phone booth”. A<br />

complicating factor during <strong>the</strong> swarmex<br />

<strong>was</strong> <strong>the</strong> presence in <strong>the</strong> operating area of<br />

local fishermen’s crab pots, which forced<br />

<strong>the</strong> Hammerhead operators to continually<br />

The close engagement of <strong>the</strong> swarmex <strong>was</strong><br />

likened by a C<strong>an</strong>adi<strong>an</strong> naval observer to a<br />

punch-up in a phone booth<br />

alter <strong>the</strong>ir vehicles’ formation. “I’m happy<br />

to report we did not snag a single pot <strong>an</strong>d<br />

that it actually had us test <strong>the</strong> full versatility<br />

of <strong>the</strong> various control modes of <strong>the</strong> UTCS<br />

system,” reports Fraser.<br />

The next major milestone, he says,<br />

will be a live firing exercise with <strong>the</strong><br />

Hammerheads “early next year” off<br />

C<strong>an</strong>ada’s west coast. C<strong>an</strong>adi<strong>an</strong>, US <strong>an</strong>d<br />

Australi<strong>an</strong> vessels are due to participate. ●

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