The XP-22 was the true forerunner of the production P-6E but was eventually returned to P-6A standard

Самолёты на фотографии: Aircrafts on the photo: Curtiss P-6 / Model 35 - СШАUSA - 1927

The P-6E was the final production derivative of the basic P-6 design.

Самолёты на фотографии: Aircrafts on the photo: Curtiss P-6 / Model 35 - СШАUSA - 1927

The XP-6F had previously served as the XP-6E, the designation being changed after the application of a turbo-supercharger and a fully-enclosed cockpit.

Самолёты на фотографии: Aircrafts on the photo: Curtiss P-6 / Model 35 - СШАUSA - 1927

The XP-6H was an adaptation of the first production P-6E with four wing-mounted guns.

Самолёты на фотографии: Aircrafts on the photo: Curtiss P-6 / Model 35 - СШАUSA - 1927

The XP-23 was the final fighter biplane to be developed by Curtiss for the USAAC, was of all-metal construction and featured a turbo-supercharger.

Самолёты на фотографии: Aircrafts on the photo: Curtiss P-6 / Model 35 - СШАUSA - 1927

The P-6E was the final production derivative of the basic P-6 design.

Самолёты на фотографии: Aircrafts on the photo: Curtiss P-6 / Model 35 - СШАUSA - 1927

The XP-23 was the final fighter biplane to be developed by Curtiss for the USAAC, was of all-metal construction and featured a turbo-supercharger.

Самолёты на фотографии: Aircrafts on the photo: Curtiss P-6 / Model 35 - СШАUSA - 1927

The XF9C-1 was designed as a lightweight shipboard fighter but was rejected for carrier operation.

Самолёты на фотографии: Aircrafts on the photo: Curtiss F9C Sparrowhawk - СШАUSA - 1931

The F9C-2 was an air-launched fighter operated from the dirigibles Akron and Macon.

Самолёты на фотографии: Aircrafts on the photo: Curtiss F9C Sparrowhawk - СШАUSA - 1931

The F9C-2 was an air-launched fighter operated from the dirigibles Akron and Macon.

Самолёты на фотографии: Aircrafts on the photo: Curtiss F9C Sparrowhawk - СШАUSA - 1931