J.V. Martin K.III Kitten
J.V. Martin · United States · first flew 1918 · fighter
The J.V. Martin K.III Kitten was an American single-seat experimental fighter prototype of 1918, notable as one of the first American aircraft to feature a retractable undercarriage operable in flight.
Recognition (WEFT)
| W — Wings | Mid-mounted, tapered |
|---|---|
| E — Engines | 1 × piston, nose-mounted |
| F — Fuselage | 4.04 m fuselage |
| T — Tail | Conventional |
WEFT is AircraftIQ's four-point recognition method — how it works.
Spot it by:
- Very small single-seat biplane — one of the smallest fighters ever built
- In-flight retractable undercarriage — a pioneering feature for 1918
- Minimal frontal area and streamlined cowling around rotary engine
Exceptionally small and compact even by contemporary standards; the mid-wing monoplane layout and retractable gear make it stand out among the biplane fighters of 1918.
Specifications
- The J.V. Martin K.III Kitten has a length of 4.04 m (13 ft).
- It has a wingspan of 6.15 m (20 ft).
- Its maximum speed is 217 km/h (135 mph).
- Typical crew: 1.
Figures are for the representative variant described above; marks differ. See how AircraftIQ sources figures.
History
Designed by James V. Martin and flown in May 1918, the Kitten was an extremely compact mid-wing monoplane intended to demonstrate that a small, fast fighter could outperform larger conventional designs. Its retractable undercarriage was a significant technical innovation for the period, though the type did not progress to production.
Variants
A single prototype was constructed; the K.III designation followed earlier Martin experimental types.
Where you'll see it
The Kitten never entered military service and remained a demonstration aircraft; its technical innovations were noted by observers but not immediately adopted in production designs.
Related aircraft
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