[Ref Pilot’s Handbook of Aeronautical Knowledge, FAA-H-8083-25B Page 12-16] Embedded thunderstorms referring cumulonimbus or sort of extensive vertical clouds can be obscured by other cloud formations and are not always visible from the ground or while in flight. Embedded thunderstorms are likely found in warm from occlusion
Category: PPL
Surface Weather Chart
[Ref Pilot’s Handbook of Aeronautical Knowledge, FAA-H-8083-25B Page 12-12] What’s Surface Weather Chart? Surface Weather Chart/Map provides various information: fronts areas of high and low pressure surface winds pressures for each station #Surface weather maps Read More – # Wind Symbol # Isobars
Trim Systems
[Ref Pilot’s Handbook of Aeronautical Knowledge, FAA-H-8083-25B Page 6-10, FAA-H-8083-31A, Aviation Maintenance Technician Handbook-Airframe Volume 1 Page 1-32] Common types of trim systems include : trim tabs (trim off the force to realise “hands off” flying) balance tabs (reduce the control force) servo tabs (on large aircraft as a backup method to move […]
Flaps
[Ref Pilot’s Handbook of Aeronautical Knowledge, FAA-H-8083-25B Page 6-8] What’s flaps? Flaps are surfaces attached to the trailing edge and/or leading edge of the wing. Flaps are one of the secondary flight control surfaces as well as the most common high-lift devices, which used on aircraft to increase both lift and induced drag for any given AOA. How’s […]
V-tail
[Ref Pilot’s Handbook of Aeronautical Knowledge, FAA-H-8083-25B Page 6-8] What’s V-tail design? two slanted tail surfaces (fixed surface) + ruddervators (movable surfaces) V-tail design utilizes two slanted tail surfaces to perform the same functions as the surfaces of a conventional elevator and rudder configuration. The fixed surfaces act as both horizontal and vertical stabilizers; The movable […]
canard
[Ref Pilot’s Handbook of Aeronautical Knowledge, FAA-H-8083-25B Page 6-7] What’s canard? Canard is an airfoil similar to the horizontal surface on a conventional aft-tail design. The canard design utilizes the concept of two lifting surfaces. Function of canard? The canard functions as a horizontal stabilizer located in front of the main wings. The difference is that […]
Spoiler
[Ref FAA-H-8083-25B Page 5-49, 6-10, Skybrary] What’s Spoiler? Spoilers, is a kind of secondary or auxiliary flight controls as well as high drag devices often found in high speed aircraft, are used on the upper surface of the wing to spoil or reduce lift. Speedbrakes? When spoilers are used as speedbrakes, they are selected by the […]
Magnetic? or True?; AGL? MSL?
As you may know that the true north is different from magnetic north – true direction ≠ magnetic direction. Then when we look at the charts and weather report/forecast, or when we hear the information form the ATC controller, whether these information is based on true or magnetic direction? Similar question is that when we […]
Mach buffet
[Ref Pilot’s Handbook of Aeronautical Knowledge, FAA-H-8083-25B Page 5-48, 5-49] What’s Mach buffet? Mach buffet (vibrate) is “high-speed” buffet. It occurs when too fast in an airspeed or too high in an AOA near the Mmo. Usually, airflow separation due to shock wave as well as wave drag produces a turbulent wake behind the wing, which causes the […]
Cloud
[Ref Understanding Weather & Climate, Books a la Carte Edition (6th Edition) #ISBN-13: 978-0321773227 #ISBN-10: 0321773225 CH 5 Atmospheric Moisture, CH 6 Cloud Development and Forms, Pilot’s Handbook of Aeronautical Knowledge, FAA-H-8083-25B Page 12-15] Clouds are visible indicators of water content and are often indicative of future weather. Three (3) basic criteria for clouds to […]