(1) To make a call on the set, remove the handset, crank the handle equal
to the appropriate number of rings (number of rings used instead of call signs) for the
party to which you wish to speak.
(2) Depress the switch assembly of the handset to speak; release the switch
assembly to listen.
(3) Replace the handset in the retaining bracket at the end of the
Section IV. PREPARING A LANDING SITE
The unit requesting aeromedical evacuation is responsible for selecting a landing
site that is as firm, level, secure, and as free from obstacles and debris as possible.
Once the site is selected, it must be marked so the pilot of the air ambulance can locate
the site. A signalman can be used to help guide the pilot in landing at the selected site.
5-25. SURFACE CONDITIONS
Choose a firm surface as free from obstructions and debris as possible.
a. The ground must be firm enough for the helicopter to land, load, and take off
without bogging down. If firm ground cannot be found, let the pilot know of the situation
so he can hover over the site while casualties are being loaded.
b. Choose a landing site that is as free from tall trees, telephone and power
lines, telephone poles, boulders, as possible. Anything that is over 18 inches high,
wide, or deep that can not be removed from the area should be marked as an obstacle.
The cleared area of the landing site cannot contain any obstacles. The site should be
away from all living areas since the wash from the helicopter could blow over tents.
c. Avoid dusty, sandy, and snow-covered surfaces when possible. Rotor wash
from the helicopter may stir up the sand or snow and cause the pilot to lose visual
contact with the ground.
d. Remove loose debris and objects likely to be blown about by the wind from
the rotor (cartons, tentage, and so forth) from the landing site. Loose debris kicked up
by the rotor wash can cause damage to the blades or engines. Ensure that marker
panels are either removed or adequately secured.