US 12,420,947 B2
Indicator for hybrid aircraft power plant
Yusuf Syed, Oakville (CA); Raphael Gariepy, Montreal (CA); Thomas Trevor Ricci, Pointe-Claire (CA); Todd Young, Orillia (CA); and Piotr Twarecki, Palgrave (CA)
Assigned to PRATT & WHITNEY CANADA CORP., Longueuil (CA)
Filed by PRATT & WHITNEY CANADA CORP., Longueuil (CA)
Filed on Dec. 20, 2023, as Appl. No. 18/389,885.
Prior Publication US 2025/0206459 A1, Jun. 26, 2025
Int. Cl. B64D 45/00 (2006.01); B64D 27/33 (2024.01)
CPC B64D 45/00 (2013.01) [B64D 27/33 (2024.01)] 20 Claims
OG exemplary drawing
 
1. A hybrid aircraft power plant comprising:
an electric motor for driving an air mover configured to propel an aircraft;
a battery operatively connected to power the electric motor;
a thermal engine for driving the air mover; and
an indicator including:
a first visual indication indicating a current amount of energy stored in the battery along a scale having a first region, a second region and a third region visually indicated along the scale, the first region representing a first amount of energy insufficient to execute a go-around with the aircraft, the second region representing a second amount of energy greater than the first amount of energy and sufficient to execute the go-around with the aircraft, the third region representing a third amount of energy greater than the second amount of energy and sufficient to execute a takeoff with the aircraft; and
a second visual indication indicating a remaining run time for the electric motor based on the current amount of energy stored in the battery, the first visual indication and the second visual indication both being in a same display area of a display.