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Forum: Spectators Balcony (Spotters Corner)

7th Mar 2017, 21:12

Replies: 12

A question about a Comet 4

Views: 3,094

Posted By chevvron

Yes West Drayton had SSR at that time, but it...

Yes West Drayton had SSR at that time, but it wasn't in the form familiar to most people nowadays. There was no data block on the radar screen, just a 'slash' following the blip of the aircraft you...

Forum: Spectators Balcony (Spotters Corner)

7th Mar 2017, 10:20

Replies: 12

A question about a Comet 4

Views: 3,094

Posted By chevvron

Identifying an aircraft by correlating a position...

Identifying an aircraft by correlating a position report with the existence of a radar return at that reporting point is an accepted method when using primary only radar; I don't think the Spanish...

Forum: Spectators Balcony (Spotters Corner)

3rd Mar 2017, 11:24

Replies: 12

A question about a Comet 4

Views: 3,094

Posted By chevvron

I'm only a retired controller, not a pilot, but...

I'm only a retired controller, not a pilot, but I'll try to answer one or two of your points from personal experience.
Before VOR/DME became the 'standard' nav system, several other systems were...

Forum: Spectators Balcony (Spotters Corner)

2nd Mar 2017, 08:44

Replies: 12

A question about a Comet 4

Views: 3,094

Posted By chevvron

If it had Doppler, this would indicate a BEA...

If it had Doppler, this would indicate a BEA Comet 4b.
Both things you mention are nav systems but if both are out of action, the aircraft would be unable to use normal ground based navigation...

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