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Topic: Turn coordinator

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Turn and bank indicator

Spatial disorientation

Slip

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	Gyroscopic Systems and Instruments
		During a normal coordinated turn, centrifugal force causes the gyro to precess toward the inside of the turn.
		In a slip, the rate of turn is too slow for the angle of bank, and the lack of centrifugal force causes the ball to be displaced to the inside of the turn.
		In coordinated flight, the needle may be used to measure the rate of turn; in a "standard rate turn", the needle is aligned with the left or right marker (dog-house) and the aircraft will turn at the rate of 3° per second or 180° in one minute.
	www.allstar.fiu.edu /aero/GSI.htm (3445 words)

	Turn coordinator - Wikipedia, the free encyclopedia
		The turn coordinator was developed to replace the older turn and bank indicator, which displayed rate and quality of turn but not rate of roll.
		As the aircraft turns, the principle of gyroscopic inertia causes the gyro to tilt.
		The turn coordinator differs from the older turn and bank indicator in that the turn coordinator has the gyro mounted at a 30-degree tilt.
	en.wikipedia.org /wiki/Turn_coordinator (750 words)

	5-5
		A timed turn is a turn in which the clock and the turn coordinator are used to change heading a definite number of degrees in a given time.
		Establish a standard rate turn as indicated by the turn coordinator and as the sweep second hand of the clock passes a cardinal point (12, 3, 6, 9), check the heading on the heading indicator.
		The miniature aircraft of the turn coordinator is primary for bank control, the altimeter is primary for pitch control, and the airspeed indicator is primary for power control.
	www.dauntless-soft.com /PRODUCTS/Freebies/Library/books/IFRH/5-5.htm (3621 words)

	Turn and bank indicator - Wikipedia, the free encyclopedia
		The rate of turn is indicated gyroscopically and the coordination of the turn is shown by an inclinometer, which works in a way similar to a simple pendulum.
		The coordination of the turn indicates whether the airplane is banked appropriately for its rate of turn.
		In a properly coordinated turn, a passenger asked to point straight down would always point in the same direction relative to the airplane, straight into his seat, regardless of the actual bank angle of the plane.
	en.wikipedia.org /wiki/Turn_and_bank_indicator (306 words)

	Turn Coordinator (turn coordinator info) (Site not responding. Last check: 2007-10-05)
		The turn coordinator is an aircraft instrument which displays to a pilot information about his rate of turn, rate of roll, and the 'quality' or 'coordination' of the turn.
		As the aircraft turns the principle of gyroscopic precession causes the gyro to tilt.
		The rate of turn is indicated gyroscopically and the coordination of the turn is shown by a inclinometer, which works in a way similar to a simple pendulum.
	wikimiki.info /en/turn+coordinator (2483 words)

	GYROSCOPIC INSTRUMENTS
		When in a left turn, the blue portion of the ball will have rolled to the right, as tho you were looking at the horizon over the nose of the aircraft.
		The turn needle is an electrically driven gyroscope which indicates the rate of turn.
		The Turn Coordinator is similar to the Turn and Slip indicator.
	webusers.warwick.net /~u1007204/gs/gyro.html (1338 words)

	Turn Coordinator
		The gyro in the turn coordinator is usually mounted at a 30-degree angle.
		The turn coordinator is usually electrically powered so that it's available if the vacuum pump fails and disables the attitude indicator and heading indicator.
		The turn coordinator is common in modern light aircraft such as the Cessna 182RG.
	www.abbysenior.com /aviation/turn.htm (322 words)

	6-1
		If, on the completion of a turn, the miniature aircraft is level and the helicopter is still turning, make a small change of bank attitude to center the turn needle and stop the movement of the heading indicator.
		During coordinated flight, the miniature aircraft of the turn coordinator gives an indirect indication of the bank attitude of the helicopter.
		Cross-check the ball of the turn coordinator to determine that the helicopter is in coordinated flight.
	www.dauntless-soft.com /PRODUCTS/Freebies/Library/books/IFRH/6-1.htm (2717 words)

	New Page 0 (Site not responding. Last check: 2007-10-05)
		The turn coordinator is a gyro instrument that helps the pilot to fly the airplane when the horizon is not clear due to haze or clouds.
		While the attitude indicator is powered by vacuum, the turn coordinator is powered by electricity.
		Standard rate turns are used in holding patterns and when intercepting instrument approaches in order to provide a predictable and repeatable maneuver.
	www.harmon.com /Turncoord.htm (382 words)

	Navaid Autopilot-Turn Coordinator
		A turn control may be used for making turns at any rate up to a maximum or about 3 degrees per second.
		The AP-1 weighs less than the conventional turn coordinator which it replaces, and the S-2 servo weighs less than that of the closest competitor.
		If the turn coordinator to be replaced weighs 2 lbs., the weight penalty for adding the autopilot system is only 0.6 lbs.
	digilander.libero.it /zancope/aquile/navaid.htm (563 words)

	Display
		This display is damped to approximate the dynamics of a standard turn coordinator that uses a mechanical gyro.
		Here, the turn coordinator has been positioned into the upper quadrant so that it can be constantly viewed.
		It indicates that the aircraft is not turning.
	www.trioavionics.com /display.htm (795 words)

	Chief Aircraft Inc - Flight Instruments - Turn Coordinators (Site not responding. Last check: 2007-10-05)
		The Falcon Gauge Turn Coordinator displays the angular rate of turn and sideslip of the aircraft during turns.
		The EGC Turn coordinator gyro indicates deviation from straight and level flight, shows angular rate of turn (standard 2 minute turn) and slip angle.
		Turn coordinator gyro indicates deviation from straight and level flight.
	www.chiefaircraft.com /airsec/Aircraft/FlightInstruments/TurnCoordinators.html (259 words)

	Aviation 130 Handout: Flight Instruments (Page 8) (Site not responding. Last check: 2007-10-05)
		The gyros in both the turn coordinator and turn-and-slip indicator are mounted so that they rotate in the vertical plane.
		The gimbal in the turn coordinator is set at an angle, or canted, which means precession allows the gyro to sense both rate of roll and rate of turn.
		Since a coordinated turn requires you to bank the airplane, the turn coordinator provides an indirect indication of bank.
	www.aviation.uiuc.edu /UnitsPPD/ptCourseWork/AVI130/BillJonesWeb/instr8.html (107 words)

	Aircraft Stalls 1
		During a skid, the centrifugal force exceeds the centripetal force and the flight path is toward the outside of the turn.
		Now the turn coordinator displays the wings level and the ball is to the left side.
		It is not advocated that the airplane be flown in uncoordinated flight; however, for practicing power-on stalls, adjust the rudder pressure so the ball of the turn coordinator is about one-half width to the right of the index.
	www.mountainflying.com /stalls1.htm (730 words)

	Page 7 (Site not responding. Last check: 2007-10-05)
		The turn coordinator is not as good as the needle in showing a turn or wings level since it shows wings level before the wings are level.
		The swinging and dipping of the compass during a turn or acceleration due to changes in speed or direction is a physical phenomenon caused when the north seeking end of the compass dives toward the north magnetic pole.
		In a smooth turn from a south heading the rate shown on the compass exceeds that of the actual turn at a diminishing rate until at 90 or 270 degrees.
	www.whittsflying.com /Page7.24IFR%20Instruments.htm (6804 words)

	172RG POH
		Check accuracy of the turn by observing the compass heading which should be the reciprocal of the original heading.
		Stop the turn by using coordinated aileron and rudder control to align the symbolic airplane in the turn coordinator with the horizon reference line.
		If disorientation precludes a visual determination of the direction of rotation, the symbolic airplane in the turn coordinator may be referred to for this information.
	williams.best.vwh.net /172RG_POH/3-13.html (807 words)

	Helicopter Simulation - Helicopter Training Center - Power, Speed, and Attitude
		As you move the cyclic to the right, the needle on the turn coordinator moves in the same direction as the turn.
		A timed turn is nothing more than us knowing the time it takes to complete our turn.
		To use these marks for a timed turn, the turn must be coordinated.
	www.hovercontrol.com /docs/training/doc_page14.shtml (742 words)

	Know Your Autopilot
		Turning the turn knob in either direction full travel would result in a standard rate turn.
		The turn coordinator for most parts is a bulletproof instrument that normally will run for years without needing any type of repair or overhaul.
		Its main purpose in life is to keep the wings level when turned on as long as electrical power is supplied to the turn coordinator and the coordinator is functioning properly.
	www.avionicswest.com /articles/know_your_autopilot.htm (4775 words)

	S-turns (Site not responding. Last check: 2007-10-05)
		The simulation displays the Turn Coordinator, Directional Gyro, Attitude Indicator, and a crosswind visulation tool.
		Turns - determines the number of turns to draw.
		Left turns - when checked draws the S-turns with the first turn to the left - Figure 2; otherwise to the right - Figure 1.
	www.flyingdynamics.com /help/GroundReference/SturnsSimulator_Help.htm (346 words)

	Oxford Aero Equipment (OxAero) - Aviation Equipment, Supplies, Avionics and Instruments
		They have now added to their product line a wonderful solid-state turn coordinator that is ideal for gliders.
		As TruTrak's exclusive Soaring-Aircraft OEM Dealer/Distributor, OxAero is happy to introduce this marvelous solid-state turn coordinator to the soaring community.
		Bottom line, the deflection angle is really a measure of turn rate, but the pilot may view the indicator as bank angle and know intuitively which way to roll for level flight.
	www.oxaero.com /TruTrak-TurnAndBank.asp (602 words)

	Stay Warm for Less Money This Winter
		TURN has successfully fought for several measures that will help protect consumers from sky high heating costs this winter.
		Right to Energy Service Protected: TURN successfully advocated for a measure that prohibits the utilities from shutting off service this winter to residential customers that make regular payments of at least 50% of their bills.
		Customers in danger of falling behind on their bills should keep in mind that a 50% payment means they will avoid costly and dangerous utility shut-offs during the cold winter season.
	www.turn.org /savemoney.shtml (378 words)

	New Page 1
		You can see the airplane move toward the inside of the turn during a slip and you will notice that the airplane flies toward the ball of the turn-and-bank indicator (turn coordinator).
		The amount is that which causes the ball of the turn coordinator to be about one-half of the way out of the index to the right.
		These were gentle stalls conducted while climbing with partial power and the ball of the turn coordinator to the right of the index.
	www.mountainflying.com /fly-low5.htm (1470 words)

	AeroElectric-List Archive Browser
		The Turn Coordinator consists of the same mechanism mounted at an angle to the roll axis of the aircraft.
		With a turn needle, there is absolutely no way to interpret it as anything other than a device that tells us whether we are turning or not turning.
		The gyroscope that is used in a Turn Coordinator is purposely mounted at an angle to the fore and aft axis.
	www.matronics.com /archives/archive-get.cgi?AeroElectric-Archive.digest.vol-bi (13998 words)

	LESO - FAQ New Customer Concerns (Site not responding. Last check: 2007-10-05)
		The State Coordinator should send LESO a copy of the denied DD Form 1348-1A with an explanation as to why the item wasn’t received.
		The State Coordinator forwards this information to the LESO to ensure the CMIS database is updated and to ensure the receiving agency is active in the 1033 program.
		The turn-in document is stamped with the signature of the LESO representative and is faxed to the State Coordinator’s office (TIN/DD Form 1348-1A).
	www.dla.mil /j-3/leso/leso_faq_nwcust.htm (1392 words)

	Pagea23PTSHood
		The correcting turn should be set on the attitude indicator for a standard rate according to airspeed.
		Once you have established the turn coordinator setting relate that to the degrees of bank on the attitude indicator.
		During a turn under the hood the first sign of things going wrong will be a change in sound.
	whitts.alioth.net /Pagea23PTSHood.htm (2145 words)

	Navaid Devices, Inc.
		A greater turn of the knob gives a steeper turn that will be shown on the electronic bar indicator.
		Point the TURN CONTROL straight up to command a zero turn rate, and adjust the TRIM knob to make the airplane fly straight and maintain a given compass heading.
		The servo is off and disengaged, but the electronic bars of the turn coordinator continue to operate.
	www.navaid-devices.com /use.htm (389 words)

	Turns
		Many procedures are based on turns being made as standard rate sort of a “start your turn now to wind up here” kind of thing.
		TIP: You are in a "standard rate turn" when the airplane "wings" (shown level below) are banked and aligned with the L or R mark on the turn coordinator.
		Example: Suppose you are turning left to a heading of 100 degrees on a 30 degree bank.
	www.altairva-fs.com /training/ava_training_turns.htm (608 words)

	The American Bonanza Society \| News and Events
		This SAIB warns that a failed turn coordinator or something as simple as a loose grounding strap from the turn coordinator's power supply can drive the autopilot to force the airplane into an uncommanded roll.
		This also has ramifications for flight should the turn coordinator become inoperative or its circuit breaker pop.
		The FAA has "field data to support that when the Rate Gyro of the Turn Coordinator losses [sic] its power reference signal, the Roll Flight Guidance Computer would continuously drive the servo in a non-commanded direction.
	www.bonanza.org /news.cfm?id=202 (255 words)

	AMA INSIDER \| March 2006 \| On the Safe Side
		The Safety Coordinator would play a leading role in the development and implementation of all safety education programs and having skills to educate would be a benefit to the club.
		Yes, the Safety Coordinator should be responsible for promoting safety first and foremost; however, this person should not be considered the “Club Field Police” and appropriate avenues should be established by the club to handle any safety matters that may surface (i.e.
		However, the coordinator should be able to use good judgment, make decisions based on facts, and relay any concerns or observations through the proper channels so the club may make an informative decision and take any needed preventative action.
	www.modelaircraft.org /insider/06_03/safe.html (743 words)

	MORE INSTRUMENTS
		Electrical Turn Coordinator is used for displaying the angular rate and sideslip of turning in horizontal flying and turning;
		The inclinometer, indicates the slip angle of the aircraft while in a turn.
		The Turn Coordinator incorporates a built-in voltage regulator so it can be used with either 14VDC or 28VDC power system.
	www.wingsandwheels.com /page22.htm (608 words)

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