18
14 CFR Ch. I (1–1–14 Edition)
§ 1.2
True airspeed means the airspeed of
an aircraft relative to undisturbed air.
True airspeed is equal to equivalent
airspeed multiplied by (
r0/r)
1
⁄
2
.
Type:
(1) As used with respect to the cer-
tification, ratings, privileges, and limi-
tations of airmen, means a specific
make and basic model of aircraft, in-
cluding modifications thereto that do
not change its handling or flight char-
acteristics. Examples include: DC–7,
1049, and F–27; and
(2) As used with respect to the cer-
tification of aircraft, means those air-
craft which are similar in design. Ex-
amples include: DC–7 and DC–7C; 1049G
and 1049H; and F–27 and F–27F.
(3) As used with respect to the cer-
tification of aircraft engines means
those engines which are similar in de-
sign. For example, JT8D and JT8D–7
are engines of the same type, and
JT9D–3A and JT9D–7 are engines of the
same type.
United States, in a geographical sense,
means (1) the States, the District of
Columbia, Puerto Rico, and the posses-
sions, including the territorial waters,
and (2) the airspace of those areas.
United States air carrier means a cit-
izen of the United States who under-
takes directly by lease, or other ar-
rangement, to engage in air transpor-
tation.
VFR over-the-top, with respect to the
operation of aircraft, means the oper-
ation of an aircraft over-the-top under
VFR when it is not being operated on
an IFR flight plan.
Warning area. A warning area is air-
space of defined dimensions, extending
from 3 nautical miles outward from the
coast of the United States, that con-
tains activity that may be hazardous
to nonparticipating aircraft. The pur-
pose of such warning areas is to warn
nonparticipating pilots of the potential
danger. A warning area may be located
over domestic or international waters
or both.
Weight-shift-control aircraft means a
powered aircraft with a framed piv-
oting wing and a fuselage controllable
only in pitch and roll by the pilot’s
ability to change the aircraft’s center
of gravity with respect to the wing.
Flight control of the aircraft depends
on the wing’s ability to flexibly deform
rather than the use of control surfaces.
Winglet or tip fin means an out-of-
plane surface extending from a lifting
surface. The surface may or may not
have control surfaces.
[Doc. No. 1150, 27 FR 4588, May 15, 1962]
E
DITORIAL
N
OTE
: For F
EDERAL
R
EGISTER
ci-
tations affecting § 1.1, see the List of CFR
Sections Affected, which appears in the
Finding Aids section of the printed volume
and at
www.fdsys.gov.
§ 1.2
Abbreviations and symbols.
In Subchapters A through K of this
chapter:
AFM means airplane flight manual.
AGL means above ground level.
ALS means approach light system.
APU means auxiliary power unit.
ASR
means airport surveillance
radar.
ATC means air traffic control.
ATS means Air Traffic Service.
CAMP means continuous airworthi-
ness maintenance program.
CAS means calibrated airspeed.
CAT II means Category II.
CHDO means an FAA Flight Stand-
ards certificate holding district office.
CMP means configuration, mainte-
nance, and procedures.
CONSOL or CONSOLAN means a kind
of low or medium frequency long range
navigational aid.
DH means decision height.
DME
means distance measuring
equipment compatible with TACAN.
EAS means equivalent airspeed.
EFVS means enhanced flight vision
system.
Equi-Time Point means a point on the
route of flight where the flight time,
considering wind, to each of two se-
lected airports is equal.
ETOPS means extended operations.
EWIS, as defined by § 25.1701 of this
chapter, means electrical wiring inter-
connection system.
FAA means Federal Aviation Admin-
istration.
FFS means full flight simulator.
FM means fan marker.
FSTD means flight simulation train-
ing device.
FTD means flight training device.
GS means glide slope.
HIRL means high-intensity runway
light system.
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