PeterZ wrote:Theemile wrote:Larger ships may be used on specific, high volume routes and between hub routes. Like how UPS, Fed Ex, or other delivery services do today - they fly 747s between hubs, then smaller planes to regional delivery points, semi trailers to local delivery warehouses, and Brown\White cargo vans to your front door. Occasionally though, they will fly a 747 between point A and point B because there is enough demand to fill the plane with auto parts or fresh pork bellies required on a timely manner to justify the craft. There is no "one size fits all" solution.
Also, Merchie ships in the Honorverse are used for a VERY long time - centuries if possible. The Dromedary may be a 200+ year old design, and technology creep has allowed newer Merchant Marines, like Manticore, to build larger ships as time progressed, while established fleets are still using their perfectly good, paid off, ships which just happen to be 3/4ths the size, but work just as well.
That's my point. Not only is the design still serviceable, but the sips and the mission are also still serviceable. The routes haven't changed enough to make using an upsized ship preferable enough to upgrade a fleet.
Had the demands on the routes changed enough, buying appropriately sized ships would have been the economical thing to do.
The MMM ships did subcontract for other lines, so it is feasible that they hired large MMM hulls for the normal routes as their cargos grew, and moved the smaller ships to other, smaller routes.
Which would be another hit, if the SLMM had to send 2 ships to cover the MMM ship's old routes.