RRVR for UK airfields

[landmark1234]

Hi

I cannot afford Jepp plates and so use the Instruemnt App Plates from the UK AIS website. These plates however do not give DA or MDA, or RVR.

I have found out (from this forum - thanks) how to translate the OCA on these plates into a DA or MDA (ie DA or MDA is higher of OCA and system minimum, plus any perator margin), but does anyone know where I can find the required RVR for UK airfields? There is no RVR indication at all on the AIS plates, and I gather it is down to JAR OPS. So - are they listed anywhere? Jeppesen has them so must get them from sonewhere.

Thanks

[BOAC]

Download EU-OPS and look at 1.430 and appendices.

[landmark1234]

ah - so you have to work it out from those tables? There's no list giving RVRs for each airfield and Cat of aeroplane?

[BOAC]

AFAIK it is all in 1.430 Appendices. I am not aware of a/c Category influence EXCEPT for degraded lighting, circling or 'the dive and drivers'

[DFC]

When you look in EU-OPS you will find in general that the minimum RVR for the approach is based on the Type of approach (precision or non-precision) and the Decision Height or MDA and the Lighting Facilities available.

To find what lighting is available look in the Aerodrome Section on the AIP for the appropriate aerodrome and it will have a table showing the length, intensity etc of the approach lighting.

Takes a bit of work to come up with the correct RVR to use as a minimum.

The alternative is to find someone with an up-to-date Jeppesen or Aeread subcscription and ask them what the RVR that is published on their charts!!

[MrBernoulli]

I cannot afford Jepp plates and so use the Instruemnt App Plates from the UK AIS website.

Out of curiosity, what are you actually doing with the approach plates, and the RVR, then?

[chevvron]

The front part of the UK AIP AD Section tells you how to calculate RVR from a/c category, runway lighting and type of approach. In addition there will be an 'Absolute Minima' RVR to be determined from the 'best case' for a particular approach. eg Cat 1 ILS (all elements serviceable) with high intensity approach lighting (731m minimum) high intensity runway edge lighting and correct runway markings = RVR 550m absolute minima.

[rennaps]

BOAC,

Please can you tell me where can I download EU Ops 1.430?

[BOAC]

Here's one
http://www.cockpitseeker.com/wp-cont...0-9-08-eng.pdf

[Dan Winterland]

Be careful with this. If you're flight simming then no worries. If your going out and 'having a go' then beware. The operatining minima are usually laid out in the company's approved ops manual and if you are flying for a company, you will use those minima. Many approach plates such as Jepps will have the company minima printed on them as they produce plates for specific operators and if you see a Jepp plate with the symbol which indicates this, then you should not use it outside that operation. For example, my company has it's own Jepp plates. The minima for our RNAV approaches are lower than other companies as we have approved training and equipment to use these reduced minima.

[rennaps]

Thanks BOAC

Dan, I just want the document for reading.
We design instrument flight procedures.