Board Thread:Wikia Discussion/@comment-25683568-20150318062713/@comment-25683568-20150618180507

The thing is that radars have a "Type" already. For example, the No. 13 Air Radar is the Type 3 Mark 1 Model 3 Air Radar (三式一号電波探信儀三型). Using Type you are misleading your audience, especially since Japanese equipment with a numbered type implies that the number is the imperial year in which they entered service as military equipment (like Type 0 Fighter, Type 3 Active Sonar). In the case of the No. 13 Air Radar, it was introduced in 1943, or imperial year 2603. Since the numbering of the radars is an abbreviation of the numbering by combining the Mark (号) and Model (型), it makes more sense to use "No." like the 20.3cm guns, rather than Type which already has a significant meaning when paired with a number on equipment.