The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 31, 2016
Filed:
Nov. 20, 2013
Airbus Helicopters, Marignane, FR;
Bernard Certain, Aix en Provence, FR;
Airbus Helicopters, Marignane, FR;
Abstract
An aircraft () having a rotary wing () and turboshaft engines () for driving said rotary wing (). The aircraft then includes two main engines () that are identical, each capable of operating at at least one specific rating associated with a main power (maxTOP, OEIcont), and a secondary engine () capable of operating at at least one specific rating by delivering secondary power (maxTOP', OEIcont′) proportional to the corresponding main power (maxTOP, OEIcont) in application of a coefficient of proportionality (k) less than or equal to 0.5, said aircraft having a control system () for driving the rotary wing by causing each main engine () to operate continuously throughout a flight, and by using the secondary engine () as a supplement during at least one predetermined specific stage of flight.