January 07, 2016, 17:42:00 GMT
permalink Post: 9231632
@tomahawk_PA38
Here's a chart of AF Concorde routings: Concorde route
Given that BA and AF used the same "Sierra November/Sierra Oscar" EB oceanic routes, and Paris and London are about the same longitude, the decel point was likely nearly identical as well.
Handwritten note is a bit small, but I believe it amounts to "50nm east of BISKI."
Waypoints change, however, and BISKI no longer exists - the closest approximation to the actual decel point that I see on a current chart looks like it would be MOSIS. Mouth of the English Channel, just west of the Scilly-Ushant line.
Deceleration clear of land then takes you directly up the center of the channel to SSW of Southhampton (roughly, ORTAC), and then hang a subsonic left to Heathrow.
But I'd also love to hear if someone has more authoritative info.
Here's a chart of AF Concorde routings: Concorde route
Given that BA and AF used the same "Sierra November/Sierra Oscar" EB oceanic routes, and Paris and London are about the same longitude, the decel point was likely nearly identical as well.
Handwritten note is a bit small, but I believe it amounts to "50nm east of BISKI."
Waypoints change, however, and BISKI no longer exists - the closest approximation to the actual decel point that I see on a current chart looks like it would be MOSIS. Mouth of the English Channel, just west of the Scilly-Ushant line.
Deceleration clear of land then takes you directly up the center of the channel to SSW of Southhampton (roughly, ORTAC), and then hang a subsonic left to Heathrow.
But I'd also love to hear if someone has more authoritative info.
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December 08, 2016, 11:36:00 GMT
permalink Post: 9602910
Fraser -
You are correct, the INS's had a access to a separate memory facility in later years of operation. The access method is as you described, and then a numerical entry to access the relevant part of the route (or Flight Plan Segment), which would be numbered between 01 and 87.
The comms log would list the appropriate FPS number. Obviously, it was still possible to enter all waypoints longhand.
It was also possible to access a DME lat/long database using the same system which enabled DME updating and saved a lot of finding/typing Lat/Long for DMEs. (These were numbered between 90 and 99).
FWIW there was a specific Delco variant for supersonic flight (Delco IV-AC). It was permissible to have a 'standard' IV or IV-A in the number 3 position. IIRC the aircraft would be restricted to subsonic flight unless there was a IV-AC in both 1 and 2 positions.
Before my time, I believe there was a card reader system to do a similar job.
Stilton -
It did have a well-disguised FMA..... the Mode Select Panel was also the FMA. Lit button = active mode.
You are correct, the INS's had a access to a separate memory facility in later years of operation. The access method is as you described, and then a numerical entry to access the relevant part of the route (or Flight Plan Segment), which would be numbered between 01 and 87.
The comms log would list the appropriate FPS number. Obviously, it was still possible to enter all waypoints longhand.
It was also possible to access a DME lat/long database using the same system which enabled DME updating and saved a lot of finding/typing Lat/Long for DMEs. (These were numbered between 90 and 99).
FWIW there was a specific Delco variant for supersonic flight (Delco IV-AC). It was permissible to have a 'standard' IV or IV-A in the number 3 position. IIRC the aircraft would be restricted to subsonic flight unless there was a IV-AC in both 1 and 2 positions.
Before my time, I believe there was a card reader system to do a similar job.
Stilton -
It did have a well-disguised FMA..... the Mode Select Panel was also the FMA. Lit button = active mode.
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December 09, 2016, 21:49:00 GMT
permalink Post: 9604415
FraserConcordeFan
To show you what EXWOK was referring to when he posted ...and then a numerical entry to access the relevant part of the route (or Flight Plan Segment), which would be numbered between 01 and 87. The comms log would list the appropriate FPS number... this is a photo of a Concorde Comms Log from a JFK-LHR sector in 2003
Best Regards
To show you what EXWOK was referring to when he posted ...and then a numerical entry to access the relevant part of the route (or Flight Plan Segment), which would be numbered between 01 and 87. The comms log would list the appropriate FPS number... this is a photo of a Concorde Comms Log from a JFK-LHR sector in 2003
Best Regards
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