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UNMANNED AIRCRAFT SYSTEMS UNMANNED AIRCRAFT SYSTEMS Key Airworthiness IssuesKey Airworthiness Issues
Civil Aviation Authority, UKCivil Aviation Authority, UK
Summary of ICAO Convention
Each State is responsible for its airspace and has ultimate control over its airspace – Article 1
UAVs of any State must have prior permission before entering the airspace of another State – Article 8
UAVs operations must be controlled so that they do not cause danger to civil aircraft – Article 8
UAVs must comply with the internationally agreed “Rules of the Air” – Article 12
ICAO Convention Annex 8 – Airworthiness Standards
Should airworthiness standards be less demanding if the aircraft is unmanned?
The ICAO Convention - Annex 8 specifies the minimum airworthiness standards for aircraft (including pilotless aircraft).
The introduction to Annex 8 defines the purpose of these standards as follows:..........
ICAO Convention Annex 8 Foreword, page (x)
“According to this policy:
a) the objective of international Standards is to define, for application by the competent nations authorities, the minimum level of airworthiness constituting the international basis for the recognition by States, under Article 33 of the Convention, of certificates of airworthiness for the purpose of the flight of aircraft of other States into or over their territories, thereby achieving, among other things, protection of other aircraft, third parties and property.”
ICAO Convention Annex 8
The focus of the ICAO Annex 8 airworthiness standards is the protection of people and property on the ground and of other aircraft sharing the airspace.
Annex 8 sets different levels of airworthiness by maximum weight alone – The number of occupants is not mentioned in ICAO Annex 8.
FARs, JARs and EASA CS’s are a means to comply with Annex 8
European Essential Requirements for Airworthiness – Regulation 1592/2002.
The “Essential Requirements” put into European law the minimum standards (compliant with ICAO Annex 8) that apply to all aircraft.
Again, the number of occupants is not mentioned.
Airworthiness Standards
Like other Large Aeroplanes the Airbus Beluga complies with JAR/CS 25, even though no more than 5 seats can be fitted
Airworthiness Standards
Is the risk to people and property on the ground negligible?
October 4, 1992 - El Al Boeing 747 cargo plane crashed in Holland, killing all 4 crew members and 47 people on the ground. The aircraft lost its No.3 and 4 engines. The separation of the No. 3 engine was initiated by fatigue (corrosion) in the inboard midspar fuse pin.
Airworthiness Standards
Not in this case -
One perception of safety: Headline NewsManned aircraft