Castles in the Sky Page #7

..they have engineered,

for television, very small valves.

Smaller valves

means smaller equipment,

and they've also been designed

for a higher frequency

on a shorter wavelength,

which means we'll be able to stop

planes flying underneath our net.

Take a look.

Don't drop it.

60MHz.

That's 100MHz.

130MHz.

We are now transmitting

at a frequency of 200MHz.

Yes, yes, yes! Yes!

20 stations?

To begin with.

We'd best get started then.

I want to go home.

Not yet, Rob.

Not yet.

I have to tell you now

that no such undertaking

has been received.

And that consequently,

this country is at war with Germany.

Mags!

I'm home!

Mags!

Mags.

Robert WW has arrived and

this is a restricted area.

It's our show now.

Get rid of him, please.

You're still here?

Your work here is finished now,

Robert.

You're free to go.

Yes, thank you. I just need

to see if the system works.

My pen, isn't it?

Now, if you wouldn't mind.

No, I do have to see

if the system actually works.

And I need you to leave.

German bomber group, 85 miles out,

south-southwest.

Track 167 WN8554.

Go ahead, Swingate.

Swingate have detected a group

of aircraft approaching the channel.

Track 167 are German.

'Track 167 WN8554.'

That's them, RAF Debden.

Scramble fighters to intercept.

'Calling red section,

blue section, scramble east.'

Six Hurricanes heading east

and climbing.

'Branscombe calling

Filter Operations.'

Go ahead, Branscombe.

'Roger. Track 167'

Branscombe have detected aircraft.

Make 167 a German bomber,

scramble fighters to intercept.

Darsham have picked up aircraft

leaving the French coast.

My new track is 171.

'Red section, blue section,

'enemy bombers

heading towards Lowestoft.'

'Red leader. Maintain angels 18.

'Your target 15 plus now at

one o'clock and slightly below.'

'Red leader to red and blue section,

bandits at one o'clock low,

'coming in fast. Tally ho!'

If you've been inspired by this

story and would like to learn more,

the Open University explores radar

and other innovations

which overcame the odds.

To find out more, go to...

..and follow the links

to the Open University.

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