Mitsubishi Ha-112-II rating

This forum contains affiliate links to products on Amazon and eBay. More information in Terms and rules


Airman 1st Class
Nov 20, 2008
References give the take-off and military power rating of the Mitsubishi Ha-112-II (Kinseii 62) engine as 1500 HP.

Question: Was water/methanol (ADI) injection required to achieve that power output??
Sorry for the delay but here is the page out of the TAIC manual....I added the normal (continuous) rated from one of the aircraft data sheets.

Yes WEP is obtained thru ADI. The numbers followed by the * are estimated by TAIC. It appears all ratings are at non-ram altitudes.

Hope this helps. Imagine if the Zero designers had stayed with the Kinsei 44 from the beginning instead of the Sakae, the Kinsei 62 could have been installed in late 1942 (a.k.a. Zero Model 64).


  • Ha112.jpg
    94.6 KB · Views: 827
There is a thread at the J-aircraft forum Ki-46-III ground engine test report by NII VVS in which pictures from a scanned copy of a Ki-46-III ground engine test report by Scientific Research Institute of the (Soviet) Air Force (NII VVS) have been posted including diagrams of fuel, oil and water-methanol injection systems, together with translations of the Russian annotations.

Users who are viewing this thread