Z - Airships

ZP - Airship, Patrol

Model	Designation	Manufacturer	Engine(s)	Crew	Other
ZPG-1		Goodyear	2 Wright R-1300-2		ZPN-1, SZ-1A
ZPG-2		Goodyear	2 Wright R-1300-2		ZP2N-1, SZ-1B
ZPG-2W	Reliance	Goodyear	2 Wright R-1300-2		ZWN-1, ZP2N-1W, EZ-1B
ZPG-3W		Goodyear	2 Wright R-1820-88 Cyclone		EZ-1C
ZPK		Goodyear	2 Wright
ZP2K		Goodyear	2 Pratt & Whitney R-1340-AN-2 Wasp		ZSG-2
ZP3K		Goodyear	2 Pratt & Whitney R-1340-AN-2 Wasp		ZSG-3
ZP4K		Goodyear	2 Pratt & Whitney R-1340-46 Wasp		XZSG-4
ZP5K		Goodyear	2 Wright R-1300-4	8	XZS2G-1, ZS2G-1
ZPM		Goodyear	2 Pratt & Whitney R-1340-AN-2 Wasp
ZPN-1		Goodyear	2 Wright R-1300-2		ZPG-1, SZ-1A
ZP2N-1	Reliance	Goodyear	2 Wright R-1300-2		ZPG-2, SZ-1B
ZP2N-1W		Goodyear	2 Wright R-1300-2		ZPG-2W, EZ-1B

ZS - Airship, Scout

Model	Designation	Manufacturer	Engine(s)	Crew	Other
ZSG-2		Goodyear	2 Pratt & Whitney R-1340-AN-2 Wasp		ZP2K
ZSG-3		Goodyear	2 Pratt & Whitney R-1340-AN-2 Wasp		ZP3K
XZSG-4		Goodyear	2 Pratt & Whitney R-1340-46 Wasp		ZP4K
XZS2G-1		Goodyear	2 Wright R-1300-4	8	ZP5K
ZS2G-1		Goodyear	2 Wright R-1300-4	8	ZP5K

ZT - Airship, Training

Model	Designation	Manufacturer	Engine(s)	Crew	Other
ZTG		Goodyear	2 Continental R-670-4	6
ZTL		Goodyear	2 Warner R-500-2/6 Super Scarab	4

ZW - Airship, Airborne Early Warning

Model	Designation	Manufacturer	Engine(s)	Crew	Other
ZWG-1		Goodyear			cancelled
ZWN-1	Reliance	Goodyear	2 Wright R-1300-2		ZP2N-1W, ZPG-2W, EZ-1B