Yes, they are
Ilyushin was created on 1933-01-13.
Ihor Ilyushin was born in 1961.
Sergey Ilyushin was born on March 30, 1894.
Sergey Ilyushin was born on March 30, 1894.
Vladimir Ilyushin was born on 1927-03-31.
Vladimir Ilyushin died on 2010-03-01.
Sergey Ilyushin died on February 9, 1977 at the age of 82.
Sergey Ilyushin died on February 9, 1977 at the age of 82.
Sergey Ilyushin was born on March 30, 1894 and died on February 9, 1977. Sergey Ilyushin would have been 82 years old at the time of death or 121 years old today.
In respects to certification of aircraft's airworthiness, Standard Airworthiness - utility, acrobatic, normal, transport, commuter. Under Special Airworthiness - experimental, provisional, primary, lightsport, restricted, limited.
Airworthiness describes an airplane which has been deemed safe to fly. In the US the FAA mandates that all aircraft are subject to certain airworthiness standards and issues airworthiness certificates which must be onboard when the plane flies. The FAA can and does revoke these airworthiness certificates for all sorts of reasons, and they must be renewed on a regular basis. The FAA also issues "airworthiness directives" (A/D's) which can require all of a certain make, model, or year of an aircraft to undergo a specific repair or inspection. These aircraft will not be issued an airworthiness certificate until these issues are fixed. If a particular model of aircraft was prone to suffering a specific type of failure, the FAA might issue an airworthiness directive to have all aircraft of the same type be modified to fix the flaw. Airworthiness can also describe a pilot. A pilot who is alert and sober and in good health can be said to be airworthy. Pilots are encouraged to look for and recognize signs of illness or bad temper in themselves and judge their own airworthiness before every flight.
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