PHI GOM Heliport Markings Flashcards
Taken from the slideshow on training web site
OFS
Obstacle Free Sector- 210 degrees out to 1000 meters (3280 feet)
D Value -
Full length of helicopter- S-92= 68’ 6” (21 meters) Distance from tip of rotor disk to TR.
.83 x D value = unrestricted deck of 56.9 Fig 6
Minimum D Value for unrestricted deck
.83 D (S92= 56.9’ or 17.3 meters)
The Touchdown (yellow) circle is ____ D for the helideck size
.5 D (half of the D value)
A small “t” is_____
Metric Tons (2205 x Number (12t = 26500 MGW )
A BLACK ANGLE of 210 degrees indicates ______
the center of the 210 degree Obstacle free zone for approach and departure
A RED HASHED area indicates_____
Prohibited Landing Sector. Do not turn nose to this area or tail will strike an obstacle.
A RED PROHIBITED LANDING marker is ___ft x____ft
13 ft x 13 ft
A closed heliport should have one of the following indicators
White X
Red X
50 gal drum
If a jack-up rig is working over a platform you should land on the ______heliport.
jack-up rig heliport rather than the fixed platform
Cranes may be in operation if______
it is obvious they cannot reach the helideck or flight path
When venting unignited gas the rig should have a ______ strobe light near the helideck or wind indictor
Red
When “Perforation (explosives)” are in operation ______ will be adhered to.
Radio Silence/no EMI
You may not land on a ship with rain within _____NM
5
PHI Ship Pitch and Roll limit
2.5 Pitch (check customer requirements)
2.5 Roll
10 feet heave or 1 meter per second
