Code of Federal Regulations - Title 14

249

Federal Aviation Administration, DOT

§ 23.775

afloat without capsizing in fresh water
when—

(1) For airplanes of 5,000 pounds or

more maximum weight, any two adja-
cent compartments are flooded; and

(2) For airplanes of 1,500 pounds up

to, but not including, 5,000 pounds max-
imum weight, any single compartment
is flooded.

(b) Watertight doors in bulkheads

may be used for communication be-
tween compartments.

[Doc. No. 4080, 29 FR 17955, Dec. 18, 1964, as
amended by Amdt. 23–45, 58 FR 42165, Aug. 6,
1993; Amdt. 23–48, 61 FR 5148, Feb. 9, 1996]

§ 23.757

Auxiliary floats.

Auxiliary floats must be arranged so

that, when completely submerged in
fresh water, they provide a righting
moment of at least 1.5 times the upset-
ting moment caused by the seaplane or
amphibian being tilted.

ERSONNEL AND

ARGO

CCOMMODATIONS

§ 23.771

Pilot compartment.

For each pilot compartment—
(a) The compartment and its equip-

ment must allow each pilot to perform
his duties without unreasonable con-
centration or fatigue;

(b) Where the flight crew are sepa-

rated from the passengers by a parti-
tion, an opening or openable window or
door must be provided to facilitate
communication between flight crew
and the passengers; and

in § 23.779, excluding cables and control
rods, must be located with respect to
the propellers so that no part of the
pilot or the controls lies in the region
between the plane of rotation of any
inboard propeller and the surface gen-
erated by a line passing through the
center of the propeller hub making an
angle of 5 degrees forward or aft of the
plane of rotation of the propeller.

[Doc. No. 4080, 29 FR 17955, Dec. 18, 1964, as
amended by Amdt. 23–14, 38 FR 31821, Nov. 19,
1973]

§ 23.773

Pilot compartment view.

(a) Each pilot compartment must

be—

(1) Arranged with sufficiently exten-

sive, clear and undistorted view to en-

able the pilot to safely taxi, takeoff,
approach, land, and perform any ma-
neuvers within the operating limita-
tions of the airplane.

(2) Free from glare and reflections

that could interfere with the pilot’s vi-
sion. Compliance must be shown in all
operations for which certification is re-
quested; and

(3) Designed so that each pilot is pro-

tected from the elements so that mod-
erate rain conditions do not unduly im-
pair the pilot’s view of the flight path
in normal flight and while landing.

(b) Each pilot compartment must

have a means to either remove or pre-
vent the formation of fog or frost on an
area of the internal portion of the
windshield and side windows suffi-
ciently large to provide the view speci-
fied in paragraph (a)(1) of this section.
Compliance must be shown under all
expected external and internal ambient
operating conditions, unless it can be
shown that the windshield and side
windows can be easily cleared by the
pilot without interruption of normal
pilot duties.

[Doc. No. 26269, 58 FR 42165, Aug. 6, 1993; 71
FR 537, Jan. 5, 2006]

§ 23.775

Windshields and windows.

(a) The internal panels of windshields

and windows must be constructed of a
nonsplintering material, such as non-
splintering safety glass.

(b) The design of windshields, win-

dows, and canopies in pressurized air-
planes must be based on factors pecu-
liar to high altitude operation, includ-
ing—

(1) The effects of continuous and cy-

clic pressurization loadings;

(2) The inherent characteristics of

the material used; and

(3) The effects of temperatures and

temperature gradients.

tification for operation up to and in-
cluding 25,000 feet is requested, an en-
closure canopy including a representa-
tive part of the installation must be
subjected to special tests to account
for the combined effects of continuous
and cyclic pressurization loadings and
flight loads, or compliance with the
fail-safe requirements of paragraph (d)
of this section must be shown.

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