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To get the true bearing from a compass (magnetic) bearing you must add the variation (for your location) to the compass bearing.

The supports that are used to hold a rotating shaft in position. Small internal combustion engines such as those used to power model aircraft often use phosphor bronze for the main crank bearings.

bearingless rotor Rotor in which flapping, lead/lag and pitch change movements are provided by the flexibility of the structural material and not by bearings. No rotor is truly rigid.
BERP British Experimental Rotorcraft Programme.
BITE Built-in test equipment.

1. The direction of some object from your position, given as a magnetic direction in compass degrees. A pilot may hear an air controller report, "The bogey bears one five zero at three niner miles.

Bearing (BRG).
Direction on a compass; Synonyms: direction; Symbols: B; Typical Units: rad, deg;
Bessel 1841.
A standard model for computing earth data ...

Upper ~: No leaks
Check that the ~ is not pushing an unreasonable amount of grease out. If it has just been serviced, it may have some grease, but if you wipe it and you keep getting more it may be an indication of a problem.
Teletemp - Upper ~: Normal ...

Floor ~: Maximum weight the aircraft floor can bear.
Floor load: Static and dynamic loads imposed by the payload.
FOD: Foreign Object Damage.

~ the military markings and or having the configuration of an aircraft employed by a known hostile nation, or meeting the criteria as prescribed by policy
backwards inclination of the wing or tail plane, measured relative to the fuselage by the wing or tail plane center line
subsonic ...

(See ~.)
(See ICAO term HOMING.)
HOMING [ICAO]- The procedure of using the direction-finding equipment of one radio station with the emission of another radio station, where at least one of the stations is mobile, and whereby the mobile station proceeds continuously towards the other station.

in which ~ means:
The horizontal direction to or from any point, usually measured clockwise from true north, magnetic north, or some other reference point through 360 degrees.

Magnetic ~ (MB). The direction to or from a radio transmitting station measured relative to magnetic north.
Magnetic heading (MH). The direction an aircraft is pointed with respect to magnetic north.

(2) HSI VOR ~ pointer will be removed when within the cone
(3) HSI VOR CDI will be removed when in the cone
(4) HSI digital VOR ~ numbers will be removed when in the cone ...

Omni~ selector. Also known as course selector.
A clearance which authorizes a pilot to perform their choice of a full stop landing, touch and go, stop and go, low approach or go around/missed approach.

Radial: ~ to or from VOR radio range.
Radio Compass: See ADF.
Radio Range: Type of radio beacon providing defined aircraft tracks to or from that navigation aid.

QDR Magnetic ~
QFE The observed pressure at a specified datum (usually aerodrome or runway
threshold elevation) corrected for temperature ...

Detail: Load ~ MountThe weight and torque of the engine are conveyed to the craft's stringer through a transverse steel weldment bolted to the stringers.

For the company ~ the name, see Gyrodyne Company of America.
Gyrodyne Part of a series on
Categories of Aircraft
Lighter than air (aerostats) ...

Radial - Magnetic ~ extending from a VOR
RADAR - Radio Detection and Ranging
RCO - Remote Communications Outlet
Roger - Communications acknowledgement
RNAV - Area Navigation
RTB - Return to Base
RVR - Runway Visual Range
RVSM - Reduced Vertical Separation Minimum ...

A magnetic ~ from a VOR, TACAN, or VORTAC facility, except for facilities in the Northern Domestic Airspace which may be oriented on True or Grid North.

QDR: magnetic ~ from the station.
QFE: atmospheric pressure at aerodrome elevation. With its sub-scale set to the aerodrome QFE an altimeter will indicate height above that airfield.
QFU: magnetic orientation of runway in use.
QNE: reading in feet on an altimeter set to 1013.

You are on the 068 ~, whereas you are supposed to be on the 078 ~. You must get back on course. For starters, "double the error", in other words you are 10 degrees off course, turn right 20 degrees to a new heading of 100.

The shape of a load-~ component can be critical. As an example, I sometimes ask people if they believe that a few ounces of low grade aluminum can support my 230 plus pounds. No one can imagine this, but if I step very slowly on a soda can, it holds my weight.

Navigation, Instruments, and Avionics ADF Automatic Direction Finder - an instrument in an airplane which displays the relative ~ to an NDB (see below) -- it essentially "points at the NDB" AI Attitude Indicator (also known as AH - Artificial Horizon) - an instrument which provides the pilot ...

The hinge pins are kept in their ~s by the cotter-pins, inserted through the drilled holes in the bottom of the hinge pins.
6. Panel Assembly. The panels are now to be assembled. Before the main panels can be con- ~-. nected to the fuselage, the engine section panel must be erected.

The trunnion is splined to the mast and has two ~s through which it is secured to the yoke. The blades are mounted to the yoke and are free to teeter (flap) around the trunnion ~s.

If you are not flying by reference to VORs, but rather using GPS to fly from waypoint to waypoint along an airway, do not be surprised if your GPS indicates a ~ that differs from the charted VOR radial for that airway.

You then center the CDI (Course Deviation Indicator) or needle on your OBI (Omni-~ Indicator) with a TO reading, and the most direct heading to the station can be read at the top of the instrument, while your DME will tell you your distance from the station.

The conditions under which the flight is conducted (hot, bouncy, low ceilings, etc.) have a ~, but in general, we should set limits with which we are comfortable. For those who don't do a lot of cross country flying, three hours is a long time to sit there droning along without a break.

Because ATC is involved in the movement of all commercial airline aircraft, the capabilities and efficiencies of ATC has a direct ~ on the schedule performance of the airlines.

Direction is indicated to the pilot as a magnetic ~ or as a relative ~ to the longitudinal axis of the aircraft depending on the type of indicator installed in the aircraft.

They provide a ~ to and from the NAVAID as well as magnetic direction. Non-directional beacons (NDB) are another from of NAVAID used but these are more so for approaches. Really popular in the mid 1900s, they were more or less phased out for navigation by the VOR.

QDR Request magnetic ~ from
QFE Setting on the subscale of the altimeter so that the instrument shows height above the reference elevation being used
QNE The indicated reading on an altimeter when the subscale is set to 1013.2 ...

COMPASS COURSE - A ~ as indicated by the horizontal angle between the compass needle and the centerline of the aircraft. A Compass Course is equal to a True Course variation and deviation; also equal to a Magnetic Course deviation.

Emergency Airworthiness Directives
Eurocopter AS 350 B3 Tail Rotor Laminated Half-~s - Inspection/Replacement - effective 05 Oct 2012
AgustaWestland A109, AW109, A119 and AW119 Main Rotor Lag Dampers - Identification/Replacement - effective 12 Oct 2012 ...

The aircraft's position is displayed as a function of its magnetic ~ "to" or "from" the VOR station. Pilots can then track toward or away from the station while monitoring their course along that individual VOR radial.

A few drops of oil should be applied to the hinges periodically and if the aileron is removed for any reason, oil and graphite should be introduced between the hinge pin and its ~.

An L/MF or UHF radio beacon transmitting nondirectional signals whereby the pilot of an aircraft equipped with direction finding equipment can determine his ~ to or from the radio beacon and "home" on or track to or from the station.

PANTS - A popular word for streamlined, non-load ~ fairings to cover landing wheels. Also sometimes called Spats or, when fully enclosing the wheel struts, Skirts.

The main purposes of a washer in aircraft installation are to provide a shim when needed, act as a smooth load ~ surface, and to adjust the position of castle nuts in relation to the drilled hole in a bolt.

RDF - Radio direction finding; using the transmission from two or more stations to fix position of an aircraft by its ~ in relation to each.

RFC - Royal Flying Corps.

Tactical Air Navigation Aid. An ultra-high frequency electronic rho-theta air navigation aid which provides suitably equipped aircraft a continuous indication of ~ and distance to the TACAN station.
Traffic ...

NONDIRECTIONAL RADIO BEACON (NDB) - A low/medium frequency radio beacon transmitting nondirectional signals whereby the pilot of an aircraft equipped with direction-finding equipment can determine the aircraft’s ~ to or from the radio beacon and track to or from the station.

This is a serious problem that makes airplanes that have accumulated a low number of hours over a large number of years very suspect. A sleeping airplane also attracts dust, and dust attracts moisture. An airplane that doesn't move attracts critters, and all of its joints (~s and such) get ...

some energy from the high-energy flow that is used to drive the fan and the compressor. The gases produced in the combustion chamber move through the turbine and spin its blades. The turbines of the jet spin around thousands of times. They are fixed on shafts which have several sets of ball-~ ...

Boots - Inflatable device on leading edge of wings and tail. Used to remove ice.
Bracing wire - A solid steel wire used to support the structure of an airplane's wings or fuselage.
BRG - ~.
BSU - Beam steering unit.

See also: See also: What is the meaning of Aircraft, Flight, Pilot, Direct, Up?

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