The CHD and WHD were built in 1933 under ATC 2-512. Two place biplanes, export versions similar to the S3HD; armed versions had suffix -A.
One prototype was built, NX13051, and four went to Nicaragua in 1935 powered by 440hp Wright R-975E.
The 1937 JHD-6 (ATC 670) was a military export model with canopied cockpits. Priced at $20,000 armed; six went to Uruguay.
One 1934 S3HD / S2HD Super Sport (ATC 543) was built, NC14048. Featuring sliding-canopy cockpits, the price was $16,000.
The S2HD was a military export version with 450hp Wasp SB engine.
The 1935 S3HD-A (ATC 581) was an armed version of the S3HD, one sold to Cuba for about $22,000.
Waco CHD
Multipurpose military biplane
1932
Engine: 250 hp (186 kW) Wright R-760
Wingspan: 32’10”
Length: 23’5″
Max speed: 160 mpg
Cruise speed: 140 mph
Seats: 2
6 built (may include JHD)
Waco JHD
Multipurpose Military Biplane with 365 hp (272 kW) Wright R-975 engine. 6 built for Uruguay.
Seats: 2
JHD-6
Engine: Wright R-975-E1, 365hp
Wingspan: 32’9″
Length: 25’7″
Useful load: 1182 lb
Max speed: 175 mph
Cruise speed: 153 mph
Stall: 60 mph
Range: 590 mi
Seats: 2
Waco S3HD / S2HD Super Sport
Engine: P & W Wasp Jr. TB, 400 hp (298 kW)
Wingspan: 32’9″
Length: 25’1″
Useful load: 965 lb
Max speed: 188 mph
Cruise speed: 163 mph
Stall: 60 mph
Range: 500 mi
Seats: 2
1 built
S2HD
Engine: P & W Wasp SB, 450hp
S3HD-A
Engine: P&W Wasp T, 320hp
Useful load: 1458 lb
Max speed: 173 mph
Cruise speed: 151 mph
Stall: 65 mph
Range: 640 mi
Waco WHD
Multipurpose Military Biplane with 420 hp (313 kW) Wright R-975 engine.
Max speed: 191 mph
Cruise speed: 166 mph
Seats: 2
Waco CMD
Multipurpose Military Biplane with 250 hp (186 kW) Wright J-6-7 variant of WHD. None built.
Seats: 2
All Aero 