Procedure
Email, fax or telephone notification should provide details of the intended activity as outlined previously.
Example: RECREATIONAL ACTIVITY
A – Hang Gliding
B – ST 187101 – Upottery Aerodrome, Devon
C – 2nm radius
D – 19 November - 0900 to 1500 (local time)
E – N/A
F – Expected number of Hang Gliders - 6
G – Telephone number of the site
H – Discover Hang Gliding Group (Telephone number if different to that at G).
Once a notification has been accepted, the LFBC will allocate a reference number which pilots/operators should retain.
The Freefax facility – on 0500-300120 – should be used where possible for the notification of recreational activities.
Pre-notification is once again required.
Operating Area Boundaries
The airspace notified should not exceed an area bounded by a 2nm radius circle, from ground level to 1000ft AGL.
Recreational and other aerial activities will not normally attract CANP avoidance areas; however, warnings of such activities will be promulgated to military aircrew.
Cancellation
Every reasonable attempt should be made to inform the LFBC as soon as it becomes obvious that an activity previously notified will no longer take place, or that the activity has been completed. Notification of a completed activity should be made irrespective of the time remaining on the CANP.
The Civil Low Flying/Aerial Activity form is available at ENR 1.10.
13. Aeroplane performance
Below is a table of recommended safety factors to be applied to the take off/landing distances published in Flight Manuals when the surface is other than dry and paved. Although dry grass is now assessed as requiring a slightly lower increase in landing distance required, the increase is greater when landing on any form of wet surface, either grass or paved.
Factors must be multiplied i.e. 1.2 x 1.3
TAKE-OFF
LANDING
CONDITION
Increase in take-off distance to height 50 feet
Factor
Increase in landing distance from height 50 feet
Factor
10% increase in aeroplane weight, e.g. another passenger
20%
1.20
10%
1.10
Increase of 1000 feet in aerodrome elevation
10%
1.10
5%
1.05
Increase of 10o C in ambient temperature
10%
1.10
5%
1.05
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本文链接地址：Guide to Visual Flight Rules (VFR) in the UK(48)
