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Fundamentals of Flight: Field Manual FM Department of the Army. Published by Dept. of the Army Washington, DC (). Used. Quantity Available. This is the current official army U.S. Army Field Manual, unchanged since this edition completed 7th May Field manual (FM) presents information. Headquarters, Department of the Army Field Manual . *This publication supersedes FM , 23 February ; FM , 03 October.

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In other words, the aviator must steer degrees magnetic to fly over a true heading of degrees. This is the current official army U.

Army Field Manual FM , Fundamentals Of Flight – PPRuNe Forums

Standard holding pattern—no wind Power control is the application of collective pitch. The horizontal situation indicator HSI is a direction indicator that uses the output from a flux valve to drive the dial, which acts as the compass card.

When noticing a turn, apply opposite cyclic until the heading indicator indicates the desired heading while maintaining trim. Small power corrections are usually sufficient to return airspeed to the desired indication.

When the helicopter is about level, the heading indicator is primary for bank as in straight-and-level flight.

Hold vertical speed constant until about 50 feet above desired altitude. Make certain that the instrument is uncaged if a caging feature is available by rotating the knob after uncaging, and check for constant heading indication. Because of control pressure changes during gear and flap operation, overcontrolling is likely unless the aviator notes pitch indications accurately and quickly. A simple method of calculating compass turns is to use timed turns.

Fieod manual FM still presents information to plan and conduct common aviation tasks for fixed- and mqnual flight. During liftoff, the changing control reactions of gear and flap retraction and power reduction demand rapid cross-check, adjustment of control pressures, and accurate trim fleld. Which instrument is primary for a particular maneuver should be considered in the context of the specific airplane, weather conditions, aviator experience, operational conditions, and other factors.


Recheck the altimeter and VSI to determine whether the correction was adequate. If airspeed is higher than descending airspeed and a constant-airspeed descent at the descending airspeed is required, reduce power to the descending power setting and maintain a constant altitude using 30 April FM As desired airspeed is approached, adjust power to the new cruising power setting and further adjust pitch attitude to maintain altitude.

The desired course is selected by rotating the course select pointer, -1203 relation to the azimuth card, by means of fielld course select knob.

An altimeter indicates standard changes from standard conditions; most flying, however, involves errors caused by nonstandard conditions, where the aviator must modify the indications to correct for these errors. Pitch control instruments Figure When the manuall is flying at an indicated altitude of 5, feet, the pressure level for that altitude is higher than in air at standard temperature, and the aircraft flies higher than if the fleld were cooler.

Torque adjustments of about 5 percent result in a change of airspeed at a moderate rate, which allows time to adjust pitch and bank smoothly.

Chapter 1 Figure A turbine-powered helicopter requires maunal 10 to 15 percent change in torque to establish climbs or descents if airspeed and attitude remain the same. If the miniature aircraft is not located on the horizon bar after leveling off at cruising airspeed, adjust the miniature aircraft while maintaining level flight with other pitch instruments.

Army Field Manual FM 1-203, Fundamentals Of Flight

Victor airways and charted information To find true heading when magnetic heading is known, the equation in the previous example is written in reverse. Much of the information contained in this manual is reproduced from AIM and adapted for Army use.


Surface, space, and sky wave propagation If an increase in power is required to maintain airspeed, slight forward cyclic pressure may be FM Currently shared across 0 libraries and 0 members of State of Indiana Libraries. Departure from desired airspeed because of an inadvertent pitch attitude change also results in altitude change. Before performing an ITO, an aviator performs a before-takeoff check of flight and navigation instruments as well as flight publications.

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The glide-slope pointer indicates the relation of the aircraft to the glide slope. All components are changed almost simultaneously with little lead of one over the other.

The pitch, bank, and power instruments that provide data related to maintaining this flight condition are the following: Retrieved 22 August FM endeavors to ensure that crewmembers understand the basic physics of flight, and the dynamics manyal with fixed- and rotary-wing aircraft.

Retrieved 21 April Change pitch attitude accordingly with the attitude indicator to maintain the desired vertical speed. The magnetic compass Figurepage is one of the oldest, simplest, and most basic instruments. Encoding altimeter with a malfunction If an aircraft flying a heading of north makes a turn east, the aircraft banks to the right and the compass card tilts to the right.