Chapter 4
Table 4.4. Shoulders for Rotary-Wing Facilities.
No.
Item Description
Requirement
Remarks
See Table 4.1, Item No. 7 and Table 5.3, Item
(b) 5% slope first 3 m
No. 5.
[10 ft]
Primary Surface
criteria apply beyond
this point.
NOTES:
1. Metric units apply to new airfield construction and where practical modification to existing airfields and heliports,
as discussed in paragraph 1.4.4.
2. The criteria in this manual are based on aircraft specific requirements and are not direct conversions from inch-
pound (English) dimensions. Inch-pound units are included only as a reference to the previous standard.
3. Airfield and heliport imaginary surfaces and safe wingtip clearance dimensions are shown as a direct conversion
from inch-pound to SI units.
4-21
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