OrdnanceType 98 No. 25Type 98 No. 25Type 98 No. 25KindBombMass241 kgService193119321933193419351936193719381939194019411942194319441945Japan · Southeast Asia5 Apr 1942 – 9 Apr 1942Japan · Pacific≈ 4 Jun 1942 – 26 Oct 1942Aircraft 3193119321933193419351936193719381939194019411942194319441945D3A1 Model 11≈ Nov 1939 – Sep 1941≈ 7 Dec 1941 – Oct 1942≈ 1 Mar 1942 – 9 Apr 1942B5N27 Dec 1941 – 18 Aug 1945≈ Jan 1942 – 9 Apr 1942D3A2 Model 22≈ Oct 1942 – Jun 1945