It became evident that the flyboat could be used advantageously in certain bulk trades where the danger of piracy was lo显而易见，快艇利于在一些海盗劫掠可能性很低的大宗贸易中使用。
Without piracy, specialized cargo-carrying vessels similar to the flyboat were designed, thereby substantially reducing 海盗不复存在以后，与快艇相似的专业载货船被设计出来，海运成本因此大大地降低了。