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1-the definition of RC Airplane,UAVs,UAS
2-the difference between RC and UAV
3-The difference between UAV and UAS
4-Classifications of UAV
5-Functions of UAV6-The history of UAV and development of it.
Before we get too specific, let’s consider some generally agreed-
upon definitions of the two aircraft categories. Later on, we’ll
delve a bit deeper into specifics of several other aspects.
Unmanned Aerial Vehicle: According to Wikipedia, a UAV, or
drone, is controlled either autonomously or by remote control of
a pilot. While remote piloting was the norm for many years,
autonomous control has since become the standard method of
operation. DIY Drones echoes this definition; claiming that UAVs
have the capacity for autonomous flight and navigation. The
Academy of Model Aeronautics (AMA) adds that drones are
“computer-controlled for nearly their entire flight.” Apparently, as
long as the autonomous system is in place and capable of
functioning, the aircraft remains a UAV, regardless of whether or
not the autonomous system is in use.
Radio-Controlled Aircraft: By contrast, RCA (as the name
implies) are controlled with a handheld radio transmitter, which
communicates with a receiver aboard the aircraft. The receiver
directs the aircraft’s servos to move the control surfaces based on pilot input.
RC plane becomes a UAV with the addition of an autopilot
Per their website, AMA claims that an RC flier “manually controls
the aircraft via R/C for nearly the entire flight.” Even if an
autopilot is installed and occasionally used
RCA: Nearly everyone seems to agree that R/C aircraft are
operated for recreational purposes only
Drone: In contrast to RCA, one of the generally agreed-upon
requirements for UAVs is that these aircraft are mission-oriented,
transport a payload, or otherwise perform some sort of practical
function.
While such pursuits have historically been for military purposes,
commercial and non-military
RCA: Currently, unoccupied aircraft that are flown strictly for
recreational purposes aren’t subject to FAA certification or
oversight(Federal Aviation Administration)
provided they comply with certain operating conditions
(discussed later)
Commercial RCAs: All recreational, unpiloted aircraft are
prohibited from engaging in any type of commercial activity. To
be eligible for commercial operations, the system(s) must meet
the equipment and certification requirements of actual drones
(specifics to follow)
Government Drones: To operate in the national airspace system
(NAS), government UAVs must obtain a Certificate of
Authorization (COA) or Waiver
Commercial UAVs: To operate drones for business purposes, civilian (non-government) organizations must obtain a Special Airworthiness Certificate –Experimental Category prior to conducting commercial flights in the NAS. The certificate applies not just to the aircraft, but to the entire unmanned aircraft system (UAS); including the ground control station, control link/specialized datalink, and any additional support equipment. The certification process usually takes 60-90 days and requires the drone to obtain an FAA registration (“N”) number. At present, the FAA is only issuing commercial UAV certificates for research & development purposes
A typical UAS consists of the:
unmanned aircraft (UA)
control system, such as Ground Control Station (GCScontrol
link, a specialized datalink)
other related support equipment.
For example, the RQ-7 Shadow UAS consists of four UAs, two GCSs, one portable GCS, one Launcher, two Ground Data Terminals (GDTs), one portable GDT, and one Remote Video Terminal. Certain military units are also fielded with a maintenance support vehicle
target and decoy
research and development
reconnaissance
logistics
civil and commercial UAVs
combat.
They can also be categorized in terms of range/altitude and the following has been advanced as relevant at such industry events as ParcAberporth Unmanned Systems forum:
Hand-held 2,000 ft. (600 m) altitude, about 2 km range
Close 5,000 ft. (1,500 m) altitude, up to 10 km range
NATO type 10,000 ft. (3,000 m) altitude, up to 50 km range
Tactical 18,000 ft. (5,500 m) altitude, about 160 km range
MALE (medium altitude, long endurance) up to 30,000 ft. (9,000 m) and range over 200 km
HALE (high altitude, long endurance) over 30,000 ft. (9,100 m) and indefinite range
HYPERSONIC high-speed, supersonic (Mach 1–5) or hypersonic (Mach 5+) 50,000 ft. (15,200 m) or suborbital altitude, range over 200 km
ORBITAL low earth orbit (Mach +25)CIS Lunar Earth-Moon transfer
During the American Civil War, Charles Perley
designed a hot-air balloon that could carry a
basket laden with explosives attached to a timing
mechanism