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Old 23rd Jan 2008, 11:39
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tweentown
 
Join Date: Aug 2006
Location: UK
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Yes, the SRA brings back memories. Most Civ airports in the UK used to do these back in the days when they only had ILS on one end of the runway. Back in those days they had a seperate more sensitive radar (the Decca 424 comes to mind) and the approach was conducted as a continuous talkdown to 0.5 miles from touchdown - guidance was given on heading to maintain the centreline with advisory height checks every half mile with a decision height typically of 300 feet or sometimes lower.

These days most UK Civ airports that are radar equiped publish SRA procedures but utilise the standard airport surveillance radar and the approach terminates at 2 miles with a correspondingly increased decision height. In reality, the procedure is only used in abnormal circumstances such as ILS unservicability.

There may still be the odd place in the UK where 0.5 mile SRA talkdown is available - Gloucester comes to mind, maybe Cambridge, not sure.
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