FM 3-04.240: Instrument Flight for Army Aviators

FM 3-04.240 Instrument Flight for Army Aviators

FM 3-04.240

Instrument Flight for Army Aviators

Army · FM · Jan 2007

About

Chapter 1 Figure 1-1. Pitot-static head ALTIMETER 1-4. An altimeter is an aneroid barometer that measures the absolute pressure of ambient air and displays that absolute pressure in terms of feet or meters above a selected pressure level. The sensitive element in an altimeter is a stack of evacuated, corrugated bronze wafers (Figure 1-2). The air pressure tries to compress the wafers against their natural springiness, which works to expand them. As a result, their thickness changes as air pressure changes. Figure 1-2. Altimeter components 1-5. An altimeter has an adjustable barometric scale that allows the aviator to set the reference pressure from which the altitude is measured. This scale is visible in the Kollsman window (altimeter setting window) and adjusted by a knob on the instrument. The range of the scale is from 28.00 to 31.00 inches of mercury (Hg), or 948 to 1,050 millibars.

DesignationFM 3-04.240

EditionJan 2007

StatusSuperseded

FunctionAviation

CollectionRecent Archive

References 68

JP 8Not in the Vault
FM 0200Not in the Vault
FM 0400Not in the Vault
FM 1-240Not in the Vault
AFMAN 15-124Not in the Vault
FM 1500Not in the Vault
FM 0600Not in the Vault
FM 3-04.301Not in the Vault
TC 1-237Not in the Vault
AFMAN 13-220Not in the Vault
FM 2000Not in the Vault
FM 1000Not in the Vault
FM 1800Not in the Vault
FM 1800ZNot in the Vault
JP 4Not in the Vault
JP 5Not in the Vault
FM 2200Not in the Vault
FM 0100Not in the Vault
FM 0000Not in the Vault
FM 1600Not in the Vault
FM 1900Not in the Vault
FM 0700Not in the Vault
FM 1900ZNot in the Vault
AFMAN 11-217Not in the Vault
FM 1-203Not in the Vault
FM 3-04.508Not in the Vault
TC 1-210Not in the Vault
TC 1-211Not in the Vault
TC 1-218Not in the Vault
TC 1-238Not in the Vault
TC 1-240Not in the Vault
TC 1-248Not in the Vault
TC 1-251Not in the Vault
TM 1-1500-204-23-3Not in the Vault
TM 1-1500-204-23-4Not in the Vault
TM 1-1500-204-23-5Not in the Vault
TM 1-1500-204-23-6Not in the Vault
TM 1-1500-204-23-8Not in the Vault
TM 1-1500-204-23-10Not in the Vault
TM 1-1500-328-23Not in the Vault
TM 1-1510-218-10Not in the Vault
TM 1-1520-237-10Not in the Vault
TM 1-1520-238-10Not in the Vault
TM 1-1520-240-10Not in the Vault
TM 1-1520-248-10Not in the Vault
TM 1-1520-251-10Not in the Vault
TM 1-1520-253-10Not in the Vault
TM 55-1520-210-10Not in the Vault
ATP 49Not in the Vault