Demolition Ships in AoE2

How good are those exploding ships, anyway? 1:27 General stuff: cost comparison, upgrade requirements. 2:37 Demolition line in HD expansions 3:08 Speed 3:20 Attack values/damage vs ships and buildings 4:15 Using demo ships against land units 4:49 Range of explosion 6:10 Staggered formation to avoid damage 7:12 Delete demo ships to detonate? 7:57 Demo ships and Lanchester’s laws. Facebook: Full intro song: