Section 29.773

14 CFR Ch. I (1-1-19 Edition)

pilot position. Flight and powerplant
controls must be designed to prevent
confusion or inadvertent operation
when the rotorcraft is piloted from either position;
(c) The vibration and noise characteristics of cockpit appurtenances may
not interfere with safe operation;
(d) Inflight leakage of rain or snow
that could distract the crew or harm
the structure must be prevented.

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[Doc. No. 5084, 29 FR 16150, Dec. 3, 1964, as
amended by Amdt. 29-3, 33 FR 967, Jan. 26,
1968; Amdt. 29-24, 49 FR 44437, Nov. 6, 1984]

Section 29.773 Pilot compartment view.
(a) Nonprecipitation conditions. For
nonprecipitation conditions, the following apply:
(1) Each pilot compartment must be
arranged to give the pilots a sufficiently extensive, clear, and undistorted view for safe operation.
(2) Each pilot compartment must be
free of glare and reflection that could
interfere with the pilot-s view. If certification for night operation is requested, this must be shown by ground
or night flight tests.
(b) Precipitation conditions. For precipitation conditions, the following
apply:
(1) Each pilot must have a sufficiently extensive view for safe operation - 
(i) In heavy rain at forward speeds up
to VH; and
(ii) In the most severe icing condition for which certification is requested.
(2) The first pilot must have a window that - 
(i) Is openable under the conditions
prescribed in paragraph (b)(1) of this
section; and
(ii) Provides the view prescribed in
that paragraph.
(c) Vision systems with transparent displays. A vision system with a transparent display surface located in the
pilot-s outside field of view, such as a
head up-display, head mounted display,
or other equivalent display, must meet
the following requirements in nonprecipitation and precipitation conditions:
(1) While the vision system display is
in operation, it must compensate for
interference with the pilot-s outside

field of view such that the combination
of what is visible in the display and
what remains visible through and
around it, allows the pilot compartment to satisfy the requirements of
paragraphs (a) and (b) of this section.
(2) The pilot-s view of the external
scene may not be distorted by the
transparent display surface or by the
vision system imagery. When the vision system displays imagery or any
symbology that is referenced to the imagery and outside scene topography,
including attitude symbology, flight
path vector, and flight path angle reference cue, that imagery and symbology must be aligned with, and
scaled to, the external scene.
(3) The vision system must provide a
means to allow the pilot using the display to immediately deactivate and reactivate the vision system imagery, on
demand, without removing the pilot-s
hands from the primary flight and
power controls, or their equivalent.
(4) When the vision system is not in
operation it must permit the pilot
compartment to satisfy the requirements of paragraphs (a) and (b) of this
section.
[Doc. No. 5084, 29 FR 16150, Dec. 3, 1964, as
amended by Amdt. 29-3, 33 FR 967, Jan. 26,
1968; Docket FAA-2013-0485, Amdt. 29-56, 81
FR 90170, Dec. 13, 2016; Docket FAA-2016-9275,
Amdt. 29-57, 83 FR 9423, Mar. 6, 2018]

Section 29.775 Windshields and windows.
Windshields and windows must be
made of material that will not break
into dangerous fragments.
[Amdt. 29-31, 55 FR 38966, Sept. 21, 1990]

Section 29.777 Cockpit controls.
Cockpit controls must be - 
(a) Located to provide convenient operation and to prevent confusion and
inadvertent operation; and
(b) Located and arranged with respect to the pilot-s seats so that there
is full and unrestricted movement of
each control without interference from
the cockpit structure or the pilot-s
clothing when pilots from 5-2- to 6-0- in
height are seated.
Section 29.779 Motion and effect of cockpit
controls.
Cockpit controls must be designed so
that they operate in accordance with

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