FM 3-52.3 PDF


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Commanders, staffs, leaders, Army civilians, and individual Soldiers throughout the Army will use this publication. Change of airspeed in turn The publication provides background information on the JATC operational elements of each Service’s ATC force and provides a general understanding of how these forces fit into the flow of a developing theater.

Use the magnetic compass at the completion of the turn to check accuracy, taking compass deviation errors into consideration when executing turns without the heading indicator. It also provides relevant information. If further change is required, an additional correction of one-half bar normally corrects any deviation from desired altitude.

Add to My List. The amount of attention given to each reference varies with the individual, aircraft type, and existing weather conditions. The gyroscope is free to rotate about one axis or both axes that are perpendicular to each other and the axis of spin. Pitch attitude is fn by reference to the altimeter, airspeed indicator, VSI, and attitude indicator. At constant dm, any deviation from level flight except in turbulent air must be the result of a pitch change.

US Army Field Manuals – Mentor Enterprises Inc.

When used with related flight directives and publications, this publication provides adequate guidance for instrument flight under most circumstances but is not a substitute for sound judgment; circumstances may require modification of prescribed procedures.

In aerial navigation, the difference between true and magnetic directions is called variation.

If the pilot does not zero the needle of the VSI immediately, results on the altimeter reflect as a gain or loss of altitude. If the air is colder than standard, air is denser and pressure levels are closer together.

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Level-off from a constant-rate climb is accomplished in the same manner as level-off from a constant-airspeed climb. Precession is the resultant action or deflection of a spinning rotor when a deflective force is applied to its rim. E 30 April FM For each maneuver, learn the performance expectations and the combination of instruments to be interpreted to control aircraft attitude. Check the altimeter, VSI, and airspeed for a smooth acceleration to the predetermined climb speed altimeter and airspeed increasing, vertical speed stable.

Homing to a station Closely coordinate pitch attitude and power corrections. Helicopters often operate from unprepared or remote locations in the presence of loose dirt or snow; this debris within the downwash can affect pitot-static instrumentation.

The air pressure tries to compress the wafers against their natural springiness, which works to expand them. When the aircraft gains the desired altitude, the nose must be adjusted accordingly. As the helicopter decelerates, check the altimeter and VSI for pitch changes and bank instruments for bank changes. Pressure altitude is the height measured above the The attitude indicator allows the aviator to control the aircraft by showing the attitude of the aircraft in relation to the natural horizon.

While the aircraft is below airspeeds required for accurate altitude or VSI readings, predetermined power settings and pitch attitudes provide the most reliable source of climb information. Figure shows the way that nonstandard temperature affects an altimeter.

When the system is in free gyro mode, the compass card may be adjusted by depressing the appropriate heading-drive button. The instrument case is sealed and connected to the static ports. The principal audience for ATP is all members of the profession of arms.

A large and abrupt pitch change produces erratic needle movement and a reverse indication and introduces greater time delay before the needle 3-523. If, on the completion of a turn, the miniature aircraft is level and helicopter is still turning, make a small change of bank attitude to center the turn needle and stop movement of the heading indicator.


Point in space approach If transition from level flight to a climb is smooth, the VSI shows an immediate upward trend and stops at a rate appropriate to the stabilized airspeed and attitude Figurepage The remote compass transmitter contains the flux valve, which is fmm direction-sensing device of the system. When noting a deviation, determine the magnitude and direction of 3–52.3 required to achieve desired performance. Stabilized constant rate climb Integrated Product Support Procedures, supports dm Army’s implementation of performance-based life cycle product support, including performance-based logistics, and provides implementing guidance for planning, developing, acquiring and sustaining well defined performance-based product support strategies PBPSS that meet the Soldier’s requirements for Army materiel and software throughout its life cycle.

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A deviation of more than FPM from the desired rate of return is considered overcontrolling as described in the following example. Adjust the torque meter to maintain desired airspeed. The slaving meter indicates the difference between displayed heading and magnetic heading. Browse over categories. Make a correction to the desired heading using a bank angle no greater than the number of degrees to be turned when noting deviations from straight flight on the 352.3 indicator.

The attitude indicator becomes the primary reference for bank during turn recovery. When the aircraft is in a turn and the card rotates, the slaving meter shows a full deflection to one side or the other. As the needle returns to fj, relax the corrective pressure. Air traffic control facilities, services, and radio call signs If altitude is constant and airspeed is high fk low, change power to obtain the desired airspeed.

An altimeter indicates standard changes from standard conditions; most flying, however, involves errors caused by nonstandard conditions, 3-523 the aviator must modify the indications to correct for these errors. Fade-out occurs because the accelerator masses settle to new balance points corresponding to the normal acceleration maintained in the turn.

The bowl is filled with liquid that has minimum volume and viscosity changes with temperature variations.