METARs and TAFs

METAR: Aviation Routine Weather Report Surface observation of current conditions at an airport TAF: Terminal Aerodrome Forecast Forecast of conditions within 5SM of an airport, issued 4 times/day at 0000Z, 0600Z, 1200Z, and 1800Z. FA: Area Forecast Similar to a TAF, but covering an area of several states (Area forecast are 12hr aviation forecasts plus … [Read more…]

Weather Charts for Pilots

Primary Weather Charts: Radar Chart shows precipitation & intensity Satellite Chart shows clouds Surface Analysis Charts shows front (air mass) and area of high and low pressure 4 Types of fronts: Warm front Cold front Stationary front Occluded front H (air circulate right) represent High pressure area and generally is good flying condition L (air … [Read more…]

Density altitude

Density altitude is a measure of atmosphere density int terms of an altitude under standard conditions. Density altitude is a measure of density and the point of reference is standard air pressure and temperature At sea level standard temperature is 59F (15C) and standard pressure is 29.92Hg (inches of mercury) Altitudes: True altitude is the altitude above sea … [Read more…]

Weather Theory Part 2

boundary between two air masses referred to as front: warm front cold front stationary front occluded front Passage of a front is noted by a change in temperature and wind direction isobars connect points of equal pressure when isobars are close together (steep pressure) expect strong winds Common scenario with cold fronts: cloudy hazy in advance, … [Read more…]

Weather

2C & 1inch pressure decrease per 1000 feet of altitude gained sea level: 14.7 pounds per square inch (force) 29.92 inches Hg (decrease pressure indicate thinning air) Air pressure density decreases with altitude Airplanes have less air at higher altitudes (less oxygen) Air density affects 1) Wing: fewer molecule move over the wing produce less … [Read more…]

Ground Reference Maneuvers

Rectangular Course S-Turns Turns around a point Check for traffic – ground track – obstructions Enter the maneuver on the downwind Perform the maneuver 600-1000 feet AGL Altitude +-100 feet and airspeed +-10 knots Clear area of terrain, obstacles, possible airspace incursion, and other aircraft Select a suitable ground reference Identify a suitable emergency landing … [Read more…]

FAR/AIM

FAR: Part 1: Definitions & Abbreviations Night: The time between the end of evening civil twilight and the beginning of morning civil twilight For recency of experience: Night: the period from one hour after sunset to one hour before sunrise Part 43: Maintenance & Maintenance Records Part 61: Pilot and Instructor Certifications Part 73: Special … [Read more…]

Airplane Systems

Four Stroke: Intake, Compression, Power, Exhaust. Dual Ignition System (Redundancy & more efficient burning) Detonation when unburned fuel explode instead of burning. On climb lower the nose to increase airspeed Pre-ignition advance of normal spark ignition and uncontrolled burning Lycoming IO-320 means I: injected O: opposed with 320 cubic inch displacement Propeller fixed pitch is … [Read more…]

Transponder

4096 Mode C transponder means they are 4,096 combination of numbers from 0000 through 7777 and mode C means that it has altitude encoding OFF: no transmission aircraft is as “primary” STBY: no transmission but unit is powered ON: Mode A operation; squawk code only is transmitted ALT: Mode C operation: pressure altitude is transmitted … [Read more…]