U.S.Army Air Force (USAAF) Gunsights (Incomplete)

Name		Usage	Method	Use Model	Note
Photograph no	C-4	Fighter	Bar type sight	A-12 P-26	front and rear sights
	Lynn-Type 3	Fighter	Reflector	P-38J P-38S P-51D P-61B	Photo:Yoichi Shimoda
N-1		Fighter	Reflector	XP-6H	N-1 was tested on the XP-6H
	N-2	Fighter	Reflector	B-25 B-26 T-6
	N-2A	Fighter	Reflector	P-35A P-40D P-40N	Used around 1936 Classification indistinct
	N-2B			P-35A P-38 P-39C
Photograph no	N-2C	Fighter	Reflector	P-39
The short one was used for flexible gunnery in Martin upper turrets, where there was not much overhead space. The tall one was used on fighters.
	N-3A	Fighter Gunner	Reflector	P-38 P-39 K/L P-40 P-47B P-47D P-51A/B B-17 B-24 B-26 B-25 P-61
	N-3B	Fighter Gunner	Reflector	P-38 for F-5 to J-5 P-39 P-47D20 P-51B/C B-25G B-25J-15 T-6 texsan SNJ-4(AT6C)
	N-3C	Fighter Gunner	Reflector	P-38 P-39K-1/L-1 P-40 P-51 T-6 B-25J-5 B-26
	N-6	Gunner	Reflector	B-17G upper turrets nose turret P-61
	N-6A	Gunner	Reflector	B-17G upper turrets nose turret B-24 B-25 B-26 P-61
	N-8	Gunner	Reflector	B-17 B-25 Late B-26tail turret
	N-8A	Gunner	Reflector	B-17 B-25
	N-9 N-9-1	Fighter Gunner	Reflector	P-51D/K, P-63 A/B-26 B-17/25W P-47
	MK-8	Fighter	Reflector	P-38 P-47D20 to D35 P-51(extremely rare) P-61?
	K-3	Gunner	Reflector	B-17
Photograph no	K-4	Gunner	Reflector	B-17 B-24
Photograph no	K-7	Gunner	Reflector	Unkown
Photograph no	K-8	Gunner	Reflector	Unkown
	The K-8 was the K-4/K-4 type repackaged to fit in the Martin upper turret.
	K-9	Gunner	Reflector	B-24
	K-10	Gunner	Reflector	B-17 tail gun position B-24 nose gun position B-25J-15 tail gun position
	K-11	Gunner	Reflector	B-24 nose gun sight B-32 nose gun sight
	K-13	Gunner	Reflector	B-17G B-24S
	The K-13 was used mostly for waist guns, but also in the Martin upper turret.
	K-14	Fighter	Reflector	P-51D P-47D40
	K-14A	Fighter	Reflector	P-51D
	K-14B	Fighter	Reflector	P-47D P-51D F-80
	K-14C	Fighter	Reflector	P-51D F-80
	K-15	Gunner	Reflector	B-17
Photograph no	K-15A	Gunner	Reflector	B-24
	K-17	Gunner	Reflector	B-17 B-24	The K-17 was used in the lower ball turret
	Des165D	Gunner	Reflector	B-29
	The Des 165 refers only to the optical unit, not the entire sighting station.
	Ａ	Gunner	Reflector	B-29
	Ｃ	Gunner	Reflector	B-29
	Ｄ＆Ｆ	Gunner	Reflector	B-29
Photograph no	D-8	Bomber	optic	B-25 B-26	Middle and low altitude
T-1		Bomber	Reflector	B-24D B-25 C/D	Different versions.
Norden		Bomber	optic	B-17 B-29 etc P-38J	(MX-8 Norden bomb sight)