PRR HH1s

Postcard depiction of Pennsylvania Railroad #3396.

The Pennsylvania Railroad's class HH1s comprised a single 2-8-8-2 type steam locomotive. Unlike most Pennsylvania Railroad steam locomotives, it had a wagon-top boiler. It was built by the American Locomotive Company (ALCO) in 1911. For 17 years, the single HH1s served as a helper until 1928. It had the road number 3396 and was subsequently scrapped after it was taken out of service in 1928.

References

Pennsylvania Railroad locomotives

A (0-4-0):	A1 A2 A3 A4 A5s

B (0-6-0):	B1 (s) B2 B3 B4 B5 B6 B7 B8 B1 (e)

C (0-8-0):	C1 C29 C30 C31

D (4-4-0):	D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15 D16 D21 D22 D23 D24 D25 D26 D30 D31 D32 D33 D34 D35 D36 D37 D38 D39 D61 "Odd D" #10003

E (4-4-2):	E1 E2 E3 E4 E5 E6 E7 E21 E22 E23 E28

F (2-6-0):	F1 F2 F3 F21 F22 F23 F24 F25 F26 F27 F30 F31 F61

G (4-6-0):	G1 G2 G3 G4 G5 G53

H (2-8-0):	H1 H2 H3 H4 H5 H6 H8 H9 H10

I (2-10-0):	I1s

J (2-6-2 and 2-10-4):	J1 J28

K (4-6-2):	K1 K2 K3s K4s K5

L (2-8-2):	L1s L2s L5 L6

M (4-8-2):	M1

N (2-10-2):	N1s N2s

O (4-4-4):	O1

P (4-6-4):	P5

Q (4-6-4-4 and 4-4-6-4):	Q1 Q2

R (4-8-4):	R1

S (6-4-4-6 and 6-8-6):	S1 S2

T (4-4-4-4):	T1

Articulated steam locomotives:	CC1s CC2s HC1s HH1s HH2s

Articulated electric locomotives:	AA1 BB1 BB2 BB3 DD1 DD2 FF1 FF2 GG1

Non-standard:	E2b E2c E3b E44