Panel/Avionics.

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   It looks, from the video, like you have put the Smiths avionics panel in all the 500 series aircraft whereas this was only the case for the
BEA/British Airways 500 series aircraft (18 aircraft denoted One-Eleven 510ED). 

These 
varied significantly from other One-Elevens, at BEA's request. The 
One-Eleven 510ED had a modified cockpit which incorporated Smiths instrumentation and avionics from or similar to that of the Hawker Siddeley HS.121 Trident, for better commonality with the type. Their additional equipment included a more sophisticated autoflight system, which allowed CAT II autolandings
 and included an autothrottle. The modifications went as far as 
reversing the "on" position of most switches to match that of the 
Trident; indeed, the 510ED was so different from other One-Elevens and 
500 series aircraft that a different type rating was required to fly it.

ALL other 500 series One-Elevens had Collins systems.

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NigelC Members Profile Send Private Message Find Members Posts Add to Buddy List Check-In Staff Joined: 29 Sep 2016 Points: 2	Post Options Post Reply Quote NigelC Report Post Thanks(0) Quote Reply Topic: Panel/Avionics. Posted: 30 Sep 2016 at 7:38am
	It looks, from the video, like you have put the Smiths avionics panel in all the 500 series aircraft whereas this was only the case for the BEA/British Airways 500 series aircraft (18 aircraft denoted One-Eleven 510ED). These varied significantly from other One-Elevens, at BEA's request. The One-Eleven 510ED had a modified cockpit which incorporated Smiths instrumentation and avionics from or similar to that of the Hawker Siddeley HS.121 Trident, for better commonality with the type. Their additional equipment included a more sophisticated autoflight system, which allowed CAT II autolandings and included an autothrottle. The modifications went as far as reversing the "on" position of most switches to match that of the Trident; indeed, the 510ED was so different from other One-Elevens and 500 series aircraft that a different type rating was required to fly it. ALL other 500 series One-Elevens had Collins systems.