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Shohei Ohtani (大谷 翔平 (おおたに しょうへい), Ōtani Shōhei, [oːtaɲi ɕoːheː]; born July 5, 1994) is a Japanese professional baseball pitcher and designated hitter for the Los Angeles Dodgers of Major League Baseball (MLB). Nicknamed "Shotime", he has previously played in MLB for the Los Angeles Angels and the Hokkaido Nippon-Ham Fighters of Nippon Professional Baseball (NPB).
- .286
- 166
- 48
- 42–15
Royal Challengers Bangalore ( RCB ), officially Royal Challengers Bengaluru, is a professional franchise cricket team based in Bangalore, Karnataka, playing in the Indian Premier League (IPL). The franchise was founded in 2008 by United Spirits and was named after its liquor brand Royal Challenge. The M. Chinnaswamy Stadium serves as the team's ...
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- History
- Types
- Video Piloting
- Types of Kits and Construction
- Airframe Materials
- Plane Characteristics
- Powerplants
- Transmitting and Receiving Frequencies
- Military Usage
- Regulations on Use
The earliest examples of electronically guided model aircraft were hydrogen-filled model airshipsof the late 19th century. They were flown as a music hall act around theater auditoriums using a basic form of spark-emitted radio signal. The British drone weapons in 1917 and 1918 evolved and their development continued through the work of the Royal A...
There are many types of radio-controlled aircraft. For beginning hobbyists, there are park flyers and trainers. For more experienced pilots there are glow plug engine, electric powered and sailplane aircraft. For expert flyers, jets, pylon racers, helicopters, autogyros, 3D aircraft, and other high-end competition aircraft provide adequate challeng...
First-person view (FPV) flight is a type of remote-control flying and a distinguishing feature of a drone. It involves mounting a small video camera and television transmitter on an RC aircraft and flying by means of a live video down-link, commonly displayed on video goggles or a portable LCD screen. When flying FPV, the pilot sees from the aircra...
There are various ways to construct and assemble an RC aeroplane. Various kits are available, requiring different amounts of assembly, different costs and varying levels of skill and experience. Some kits can be mostly foam or plastic, or may be all balsa and ply wood. Construction of wood kits typically consists of using formers and longerons for ...
Several materials are commonly used for construction of the airframe of model radio-controlled aircraft. The earliest model radio-controlled aircraft were constructed of wood covered with paper. Later, plastic film such as Monokote came to be widely used as a covering material. Wood has relatively low cost, high specific Young's modulus (stiffness ...
Number of channels
The number of channels (technically, servo channels) a plane has is normally determined by the number of mechanical servosthat have been installed, with a few exceptions, such as the aileron servos, where two servos can operate via a single channel using a Y harness (with one of the two servos rotating in the opposite direction). On smaller models, usually one servo per control surface (or set of surfaces in the case of ailerons or a split elevator surface) is sufficient. Generally, for a pla...
Turning
Turning is generally accomplished by rolling the plane left or right and applying the correct amount of up-elevator ("back pressure"). A three channel RC plane will typically have an elevator and a throttle control, and either an aileron or rudder control but not both.If the plane has ailerons, rolling the wings left or right is accomplished directly by them. If the plane has a rudder instead, it will be designed with a greater amount of dihedral effect, which is the tendency for the airplane...
V-tail systems
A V-Tail is a way of combining the control surfaces of the standard "+" configuration of rudder and elevator into a V shape. These ruddervatorsare controlled with two channels and mechanical or electronic mixing. An important part of the V-Tail configuration is the exact angle of the two surfaces relative to each other and the wing, otherwise the ratio of elevator and rudder outputs will be incorrect. The mixing works as follows: When receiving rudder input, the two servos work together, movi...
Most planes need a powerplantto drive them, the exception being gliders. The most popular types for radio-controlled aircraft are internal combustion engines, electric motors, jet engines, and rocket engines. Three types of internal combustion engines are available being small 2 and 4 stroke engines. Glowplug engines use methanol and oil as fuel, c...
Frequency
A transmitter and receiver of a radio control aircraft must both be on the same frequency so the aircraft can be controlled in flight. Traditionally, this transmitting and receiving frequency were referred to as a channel (technically, a frequency channel). This is not the same as number of servo channels that a plane can have, and can be confusing, as both are casually referred to as channels. It is less common now for radio control pilots to refer to frequency channels, as modern computer r...
Channels and frequency control
Traditionally (since 1967) most RC aircraft in the United States utilized a 72 MHz frequency band for communication – six of these were actually on the 72 MHz band at 80 kHz separation from each other, with one additional isolated frequency at 75.640 MHz. These remained legal to use until the 1983 FCC reform that introduced "narrowband" RC frequencies – at 40 kHz separation from 1983 to 1991, and finally at 20 kHz separation from 1991 onwards, to the present day with fifty frequencies on 72 M...
Radio-controlled aircraft are also used for military purposes, with their primary task being intelligence-gathering reconnaissance. An Unmanned Aerial Vehicle (UAV), also known as a drone, is usually not designed to contain a human pilot. Remotely controlled target droneaircraft were used to train gun crews.
Various countries have regulations and restrictions on model aircraft operations, even for non-commercial purposes, typically imposed by the national civil aviation authority.
e. Richard Morgan Fliehr [6] [a] (born February 25, 1949), known professionally as Ric Flair, is an American professional wrestler currently signed to All Elite Wrestling (AEW). Regarded by multiple peers [7] and journalists [8] as the greatest professional wrestler of all time, Flair has had a career spanning over 50 years in 6 decades.
Cristiano Ronaldo dos Santos Aveiro GOIH ComM (Portuguese pronunciation: [kɾiʃˈtjɐnu ʁɔˈnaldu]; born 5 February 1985) is a Portuguese professional footballer who plays as a forward for and captains both Saudi Pro League club Al Nassr and the Portugal national team. Widely regarded as one of the greatest players of all time, Ronaldo has ...
view. talk. edit. The 2024 Indian Premier League (also known as IPL 17 and branded as TATA IPL 2024) is the 17th edition of the Indian Premier League, a franchise Twenty20 cricket league in India, organized by the Board of Control for Cricket in India. The tournament features ten teams competing 74 matches from 22 March to 26 May 2024.
2024–. France U23. 1. (0) *Club domestic league appearances and goals, correct as of 01:46, 28 April 2024 (UTC) ‡ National team caps and goals, correct as of 23:29, 26 March 2024 (UTC) Bradley Laurent Barcola (born 2 September 2002) is a French professional footballer who plays as a forward or winger for Ligue 1 club Paris Saint-Germain .
