The Ki-109 is a Rank III Japanese twin-engine fighter with a battle rating of 4.7 (AB) and 4.3 (RB/SB). This aircraft was introduced in Update 1.71 "New E.R.A".
Based on the Mitsubishi Ki-67 'heavy' bomber, the Ki-109 was designed as an interceptor in an attempt to counter the American bombing raids that devastated Japan. It is armed with a 75 mm anti-aircraft gun modified for aircraft use, and almost all defensive armament from the bomber version has been stripped, except for the tail turret, in order to maximise performance.
Ingame, the Ki-109 functions much as it was intended to in reality. The 75 mm gun is effective against bombers, but struggles to hit small agile targets such as fighters. Its own defensive armament is very poor, and it should avoid combat with fighters at all costs. Alternatively, the 75 mm gun is also effective against tanks if a clean hit can be obtained.
Describe how the aircraft behaves in the air. Speed, manoeuvrability, acceleration and allowable loads - these are the most important characteristics of the vehicle.
| Max Speed
(km/h at ?,000 m)
| Max altitude
| Turn time
| Rate of climb
| Max Speed
(km/h at ?,000 m)
|Max altitude (meters)||Turn time (seconds)|| Rate of climb
|Take-off run (meters)|
|Combat flap||Take-off flap||Landing flap||Air brakes||Arrestor gear|
| Wing-break speed
| Gear limit
| Combat flap
|Max Static G|
|< ???||< ???||< ???||> ???|
|Optimal altitude||100% Engine power||WEP Engine power|
|?,??? m||??? hp||?,??? hp|
Survivability and armour
Examine the survivability of the aircraft. Note how vulnerable the structure is and how secure the pilot is, whether the fuel tanks are armoured, etc. Describe the armour, if there is any, and also mention the vulnerability of other critical aircraft systems.
Describe the offensive armament of the aircraft, if any. Describe how effective the cannons and machine guns are in a battle, and also what belts or drums are better to use. If there is no offensive weaponry, delete this subsection.
Defensive armament with turret machine guns or cannons, crewed by gunners. Examine the number of gunners and what belts or drums are better to use. If defensive weaponry is not available remove this subsection.
Usage in battles
Describe the tactics of playing in an aircraft, the features of using vehicles in a team and advice on tactics. Refrain from creating a "guide" - do not impose a single point of view, but instead give the reader food for thought. Examine the most dangerous enemies and give recommendations on fighting them. If necessary, note the specifics of the game in different modes (AB, RB, SB).
Manual Engine Control
|Controllable||Not controllable||Not controllable||Not controllable||Separate||Not controllable||Not controllable|
Pros and cons
- Powerful 75 mm gun, effective against bombers and tanks.
- Relatively good performance and agility for its size.
- Self-sealing fuel tanks.
- No forward-firing armament besides 75 mm gun.
- Very low rate-of-fire for the 75 mm gun.
- Extremely weak defensive armament.
- No armour besides the 75 mm gun cradle.
Describe the history of the creation and combat usage of the aircraft in more detail than in the introduction. If the historical reference turns out to be too big, take it to a separate article, taking a link to the article about the vehicle and adding a block "/ History" (example: https://wiki.warthunder.com/(Vehicle-name)/History) and add a link to it here using the
main template. Be sure to reference text and sources by using
<ref>, as well as adding them at the end of the article. This section may also include the vehicle's devblog entry (if applicable) and the ingame encyclopedia description (under
=== Encyclopedia Info ===, also if applicable).
Excellent additions to the article would be video guides, screenshots from the game, and photos.
Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example:
- reference to the series of the aircraft;
- links to approximate analogues of other nations and research trees.
|Japan twin-engine fighters and attackers|
|Twin-engine fighters||Ki-108 · J5N1 · Ki-83|
|Interceptors||J1N1 · Ki-45 ko Toryu · Ki-45 otsu Toryu · Ki-45 hei Toryu · Ki-45 tei Toryu · Ki-96 · Ki-109|