Kawasaki Ki-10 "Perry" — Army Type 95 Fighter
The Kawasaki Ki-10 "Perry" (九五式戦闘機, Kyūgo-shiki Sentōki) was the pinnacle of Imperial Japanese Army biplane fighter design — a machine that deliberately chose extreme maneuverability over the raw speed offered by the emerging monoplane generation. Designed under chief engineer Takeo Doi, the Ki-10 remained the IJA's frontline fighter from 1935 through the early years of the Second Sino-Japanese War.
This Living Collection brings together the surviving primary-source documentation for the Ki-10 family, drawn from IJA archives, Kawasaki manufacturer records, and a rare captured evaluation report published by the Soviet NII VVS in 1939 — one of the most detailed external assessments of the type ever produced.
Collection Contents
Variant II — Ki-10-II (Model 2)
- Ki-10-II Technical Drawing — Ki-10-II Model 2 Type 95 Fighter Structural Drawings · 九五式戦闘機（二型）胴體骨格図 · Japanese Language
- Ki-10-II Operating & Maintenance — Kawasaki Ki-10-II Model 2 Type 95 Fighter Instruction Manual · 九五式戦闘機（二型）説明書 · Japanese Language
No Variant — Common Documents
- Ki-10 Engine — Kawasaki Ha-9 Type 95 Aircraft Engine Instruction Manual · 九五式ハ〇〇馬力發動機説明書 · Japanese Language
- Ki-10 Slides, Photos & Brochures — Ki-10 Photographic Collection · English Language
Performance Data
| Metric | Ki-10-I (Model 1) | Ki-10-II (Model 2) |
|---|---|---|
| Maximum Speed | 400 km/h at 3,000 m | 400 km/h at 3,000 m |
| Cruising Speed | 320 km/h | 320 km/h |
| Service Ceiling | 10,000 m (32,810 ft) | 11,500 m (37,730 ft) |
| Rate of Climb | 5,000 m in 5 min | 5,000 m in 4 min 30 sec |
| Range | 1,100 km (684 mi) | 1,100 km (684 mi) |
| Empty Weight | 1,300 kg (2,866 lbs) | 1,360 kg (2,998 lbs) |
| Loaded Weight | 1,650 kg (3,638 lbs) | 1,740 kg (3,836 lbs) |
Aerodynamic & Structural Notes
- Wing Geometry: Sesquiplane (unequal span) configuration — all-metal structure, light alloy and fabric covering. Upper wing span 10.02 m, significantly larger than the lower wing.
- Control Surfaces: Ailerons fitted exclusively to the upper wing to reduce mechanical complexity and adverse yaw.
- Parasitic Drag Reduction: Narrow-profile welded steel-tube fuselage with mixed metal/fabric skinning; streamlined wheel spats over fixed undercarriage to clean airflow beneath the lower wing.
Engine Technical Notes
Powerplant: Kawasaki Ha-9-IIa (Ha-9-IIb on Model 2) — 12-cylinder, liquid-cooled, 60° Vee piston engine, a highly developed evolution of licensed European inline technology.
- Power Output: 850 hp (634 kW) at takeoff
- Propeller: Initially two-bladed wooden; updated via technical bulletin to a three-bladed fixed-pitch metal propeller
- Cooling System: Large un-ducted radiator beneath the engine cowling — effective but a primary source of frontal drag
This is an archival, static-copy edition fixed at its original publication date. Intended for historical reference, flight simulation, museum restoration, and educational use only. Not approved for active airworthiness maintenance under FAA 14 CFR § 43.13, EASA Part-M, or equivalent international regulations. Operators of active aircraft must use current, revision-controlled publications from the Type Certificate holder or an authorized distributor.
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