JNR Class HEF50

The JNR Class HEF50 was a proposed Japanese DC electric locomotive intended to be operated by the Japanese National Railways.

History[]

The Class HEF50s were designed by the Japanese Ministry of Railways as part of the Japanese bullet train project, which was ultimately canceled due to the onset of the Pacific War and none were ultimately produced. Very few details of the train are available, even in design drawings.

The train was intended to go 170 km/h (106 mph) at least, though there is some skepticism as to whether the locomotives could have achieved these speeds with Japan's infrastructure at the time. As with the HEH50 these were intended to pull passenger trains. Sketches illustrating how the locomotive would have looked like exist in museums.

JR Group motive power
JNR	Diesel prototype	DB10 • DC10 • DC11 • DD10
	4-axle diesel	DD11 • DD12 • DD13 • DD14 • DD15 • DD16 • DD17 • DD20 • DD21 • DD40 • DD41 • DD42 • DD50 • DD51 • DD53 • DD54 • DD90 • DD91 • DD92 • DD93
	5-axle diesel	DE10 • DE11 • DE15 • DE50
	6-axle diesel	DF40 • DF41 • DF50 • DF90 • DF91 (gen 1) • DF91 (gen 2) • DF92 • DF93
	Shinkansen	911 • 912
	Narrow-gauge diesel	Ke DB10 • Ke DB11
	Early 2/4-axle freight electric	AB10 • EB10 • ED10 • ED11 • ED12 • ED13 • ED14 • ED15 • ED16 • ED17 • ED18 (gen 1) • ED18 (gen 2) • ED19 • ED23 • ED24
	Early 4-axle passenger electric	ED50 • ED51 • ED52 • ED53 • ED54 • ED55 • ED56 • ED57
	Early 6-axle freight electric	EF10 • EF11 • EF12 • EF13 • EF14 • EF15 • EF16 • EF18
	Early 6-axle passenger electric	EF20 • EF50 • EF51 • EF52 • EF53 • EF54 • EF55 • EF56 • EF57 • EF58 • EF59 • HEF10 • HEF50
	Early 8-axle electric	EH10 • EH50 • HEH50 • HEH150
	Early Abt rack rail electric	EC40 • ED40 • ED41 • ED42
	Acquired from private railways	ED20 • ED21 • ED22 • ED25 (gen 1) • ED25 (gen 2) • ED26 (gen 1) • ED26 (gen 2) • ED27 (gen 1) • ED27 (gen 2) • ED28 (gen 1) • ED28 (gen 2) • ED29 (gen 1) • ED29 (gen 2) • ED30 (gen 1) • ED31 • ED32 • ED33 • ED34 • ED35 • ED36 • ED37 • ED38 • Ke ED10 • DeKi 1 • RoKo 1 • DeKi 501 • RoKo 1000
	DC 4-axle	ED60 • ED61 • ED62 • ED63 • ED95
	AC 4-axle	ED44 • ED45 • ED70 • ED71 • ED72 • ED73 • ED74 • ED75 • ED76 • ED77 • ED78 • ED79 • ED90 • ED91 • ED93 • ED94
	DC 6-axle	EF60 • EF61 • EF62 • EF63 • EF64 • EF65 • EF66 • EF67 • EF90
	AC 6-axle	EF70 • EF71
	Dual-current	ED30 (gen 2) • ED46 • ED92 • EF30 • EF80 • EF81
	Other	AH100
JR Group	Dual-current electric	ED500 • EF500 • EF510 • EH500
	DC electric	EF200 • EF210 • EH200
	DC EMU	M250
	AC electric	EH800
	Diesel	DD18 • DD19 • DB500 • DD200 • DF200 • ENR-1000
	Hybrid	HD300