BuAer

									.
	US Navy and US Marine Corps Bu Nos
	Second Alphanumeric Series (1914-1917)

.	.	.	.	.	.	.	.	.	.
.	In March of 1914, this manufacturer-based designation system was abandoned and was replaced by a two-letter type and subtype classification scheme. The first letter was the type or class--A stood for Heavier Than Air, B for Free Balloon, C for Dirigible, and D for Kite Balloon. A second letter was used to designate the subtype--for example AH was a hydro airplane, AB was a flying boat, and AX was an amphibian. All of the surviving aircraft acquired under the original scheme were redesignated and reserialed. A separate sequence of serials was assigned to each type/subtype classification.								.
.	.	.	.	.	.	.	.	.	.
.	AB-1		Curtiss F-boat			former C-1		.	.
.	AB-2		Curtiss F-boat			former C-2		.	.
.	AB-3		Curtiss F-boat			former C-3		.	.
.	AB-4		Curtiss F-boat			former C-4		.	.
.	AB-5		Curtiss F-boat			former C-5		.	.
.	AB-6		Burgess K			former D-1		.	.
.	AB-7		Burgess H			former D-2		.	.
.	AH-1		Curtiss Model E (Triad) seaplane			former A-1		.	.
.	AH-2		Curtiss pusher seaplanes			former A-3		.	.
.	AH-3		Curtiss pusher seaplanes			former A-4		.	.
.	AH-4		Wright Model CH seaplanes			former B-1		.	.
.	AH-5		Wright Model CH seaplanes			former B-2		.	.
.	AH-6		Wright Model CH seaplanes			former B-3		.	.
.	AH-7		Burgess-Dunne tailless seaplane			.		.	.
.	AH-8		Curtiss E pusher seaplanes			.		.	.
.	AH-9		Curtiss E pusher seaplanes			later A83		.	.
.	AH-10		Burgess-Dunne tailless seaplane.			.	.	.	.
.	AH-11		Curtiss E pusher seaplanes			.	.	.	.
.	AH-12		Curtiss E pusher seaplanes			.	.	.	.
.	AH-13		Curtiss E pusher seaplanes			.	.	.	.
.	AH-14		Curtiss E pusher seaplanes			.	.	.	.
.	AH-15		Curtiss E pusher seaplanes			.	.	.	.
.	AH-16		Curtiss E pusher seaplanes			.	.	.	.
.	AH-17		Curtiss E pusher seaplanes			.	.	.	.
.	AH-18		Curtiss E pusher seaplanes			.	.	.	.
.	AH-19		Martin Model S seaplane			later A68		.	.
.	AH-20		Thomas HS seaplane			later A57		.	.
.	AH-21		Thomas HS seaplane			later A58		.	.
.	AH-22		Martin Model S seaplane			later A69		.	.
.	AH-23		Wright Model K seaplane			later A51		.	.
.	AH-24		Sturtevant S			later A76		.	.
.	AH-25		Burgess Model S			later A70		.	.
.	AH-26		Burgess Model S			later A71		.	.
.	AH-27		Burgess Model S			later A72		.	.
.	AH-28		Burgess Model S			later A73		.	.
.	AH-29		Burgess Model S			later A74		.	.
.	AH-30		Burgess Model S			later A75		.	.
.	AH-31		Burgess Model S			.	.	.	.
.	AH-61		Gallaudet D-1			later A59		.	.
.	AH-62		Curtiss R-3			later A67		.	.
.	AH-63		Serial not issued			.	.	.	.
.	AH-64		Serial not issued			.	.	.	.
.	AH-65		Curtiss R-3			later A66		.	.
.	AX-1		Curtiss pusher landplane			former E-1		.	.
.	BC-2		Goodyear kite balloon			later A94		.	.
.	BC-3		Goodyear kite balloon			later A95		.	.
.	BC-4		Goodyear kite balloon			later A151		.	.
									.

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