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Mike Tee

17th Jan 2016 10:39

RVR

Please can someone explain the following. At Durham Tees Valley Airport, KLM F70 Aircraft require 550 metres RVR (Runway Visual Range) when landing on Runway 23, whereas when landing on Runway 05 an RVR of 750 metres is required. What are the factors which go to make up such a difference.
Thanks.

kcockayne

17th Jan 2016 11:24

One factor to be going on with : different approach lighting eg. Length & configuration.

chevvron

17th Jan 2016 14:22

Quote:

Originally Posted by kcockayne (Post 9240648)

One factor to be going on with : different approach lighting eg. Length & configuration.

23 has 777m of HI approach lighting whilst 05 only has 605m. Cat 1 (absolute minima 550m RVR) requires a minimum of 730m hence 23 is Cat 1 and 05 isn't.

Midland 331

17th Jan 2016 20:27

The difference with the 05 end is probably down to the land dropping away and the complexity/expense of extending the lighting out on high poles.

Mike Tee

18th Jan 2016 11:15

Thanks for that. All quite clear now.

Piltdown Man

18th Jan 2016 21:21

Technically, they are both Cat I. It's just that the standard lowest minima (we will not consider LTS) are 550 M RVR and 200 feet above threshold, typically expressed as an altitude.

Mike Tee: It's not just KLM Fokker 70 aircraft that fly with those minima. All users are bound by the same restrictions.

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