Curtiss F9C Sparrowhawk
| F9C Sparrowhawk | |
|---|---|
 |
|
| F9C-2 Sparrowhawk BuNo 9058 in flight over Moffett Field, California in 1934. This aircraft was lost with the USS Macon. Pilot in this photo is Lt. Harold B. Miller, commander of the Heavier-Than-Air Unit. | |
| Role | Parasite fighter |
| Manufacturer | Curtiss Aeroplane and Motor Company |
| First flight | 12 February 1931 |
| Introduction | 1931 |
| Retired | 1937 |
| Status | Retired |
| Primary user | United States Navy |
| Number built | at least 7 |
The Curtiss F9C Sparrowhawk was a light 1930s biplane fighter aircraft that was carried by the United States Navy airships USS Akron and Macon. It is an example of a parasite fighter, a small airplane designed to be deployed from a larger aircraft such as an airship or bomber.
On 20 August 1929, off the coast of New Jersey, a biplane hooked itself to the bottom of a dirigible and was carried along by the larger craft. This is the 2nd such incident. The “snapon, snapoff” experiment is accomplished by the Navy airship USS Los Angeles, under Lt. Com. Herbert Wiley, and a Navy biplane. The biplane, regulating its speed to that of the dirigible, flew close under the Los Angeles. A large hook had been attached to the middle of the top wing of the biplane, and from the bottom of the Los Angeles hung a U-shaped yoke. Maneuvering the ship under the dirigible, the plane pilot slipped the hook into the Los Angeles’ yoke and for 3 or 4 minutes the dirigible carried the biplane. The plane pilot, by a cord arrangement in his cabin, withdrew the hook from the yoke and flew clear of the dirigible.
Although designed as a pursuit plane or fighter, the Sparrowhawk's primary duty in service was reconnaissance, enabling the airships it served to search a much wider area of ocean. The Sparrowhawk was primarily chosen for service aboard the large rigid-framed airships Akron and Macon because of its small size (20.2 ft (6.2 m) long and with only a 25.5 ft (7.8 m) wingspan), though its weight, handling and range characteristics, and also downward visibility from the cockpit, were not ideal for its reconnaissance role. The theoretical maximum capacity of the airships' hangar was five aircraft, one in each hangar bay and one stored on the trapeze but, in the Akron, two structural girders obstructed the after two hangar bays, limiting her to a maximum complement of three Sparrowhawks. A modification to remove this limitation was pending at the time of the airship's loss. Macon had no such limitation and she routinely carried four airplanes.
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