US 12,214,870 B2
Inflight reduced engine operation, engine restart, and associated alerts
Bharath Ramamurthy, Bengaluru (IN)
Assigned to Textron Innovations Inc., Providence, RI (US)
Filed by Textron Innovations Inc., Providence, RI (US)
Filed on Sep. 9, 2022, as Appl. No. 17/941,776.
Prior Publication US 2024/0083570 A1, Mar. 14, 2024
Int. Cl. B64C 27/04 (2006.01); B64D 27/24 (2006.01); B64D 31/00 (2006.01); B64D 45/00 (2006.01); B64D 43/00 (2006.01)
CPC B64C 27/04 (2013.01) [B64D 27/24 (2013.01); B64D 31/00 (2013.01); B64D 45/00 (2013.01); B64D 43/00 (2013.01); B64D 2045/0085 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A rotorcraft, comprising:
a first engine;
a second engine;
a primary run/off switch for the first engine;
a reduced engine operation (REO) on/off switch configured to send, in response to being positioned in an on position, an engine shutoff signal, the REO on/off switch being distinct from the primary run/off switch for the first engine; and
a computer system configured to:
receive the engine shutoff signal; and
command, in response to receiving the engine shutoff signal, the first engine to shut off to enter an REO flight mode in which the first engine has been intentionally shut down inflight and the second engine is to remain operational, the primary run/off switch for the first engine remaining in the on position while the first engine is shut down during the REO flight mode.