An interesting piece caught my eye this morning, describing how the US Navy is putting JDAM-ER kits on their Quickstrike series of mines. These are in effect naval mines based on the Mk 80-series of general-purpose bombs, and the combination of a modular warhead with a modular guidance and glide kit makes so much sense that the first reaction is why no-one has put the together earlier?
The linked story gives a good primer for the concept, but the too long, didn’t read version is that the Quickstrike mine is dropped by an aircraft, glides tens of kilometres (depending on release altitude) to a pre-set target location, where it sinks to the bottom of the sea and becomes a ‘smart’ bottom mine.
For HX this suddenly opens up interesting possibilities. Mining is traditionally a key interest of the Finnish Navy, as our waters are shallow and the number of usable sea lanes to reach any given port is severely limited by the cluttered archipelago. However, if the enemy enters the area and manages to sweep a sea lane, going in to mine it again is usually not to be recommended. Mining is also a time-consuming task, putting the vessels performing it in danger.
The Quickstrike/JDAM-ER combination offers a solution as it makes it possible to mine from a stand-off distance and to release the whole minefield more or less simultaneously, and with the exact location of the mines already logged. A pair of fighters could easily and in a very short time span shut down a key chokepoint or scatter their load over a more general area to force the enemy to conduct time-consuming sweeping operations.
The obvious platform here is the F/A-18E/F Super Hornet. It is already using the JDAM-ER in Australian service, and chances are that the USN will focus any effort to integrate the Quickstrike on it much sooner than they will get around to the F-35C (not to mention how long it would take before the F-35A picks up the load). The ‘Rhino’ has flown impressive JDAM sans suffix loads in Syria, including slugging it out with two 2,000 lbs (900 kg) GBU-31 JDAMs under each wing, or eight of the lighter 1,000 lbs GBU-32. A pair of Super Hornets could likely drop eight heavy or sixteen lighter sea mines in a single mission, and could do so deep behind enemy lines. In fact, this is something of an unique selling point for the ‘Rhino’.
This opens up completely new tactical possibilities, including quickly shutting down a strategic sea lane if an enemy task force seems to be able to avoid Finnish surface units or coastal defences (a scenario becoming increasingly likely as the number of ships decrease). Another possibility is cutting off an enemy amphibious landing by mining the sea lanes used to supply the bridgehead, or even offensively dropping mines in or in the very vicinity of enemy ports and bases.
The best part is the cost. This is largely an off-the-shelf system, with (relatively) cheap components and requiring little specialised training on the part of the flight crews to operate. While I find it unlikely that we will see a true maritime strike capability on the HX anytime soon, this would allow the air force to support the navy and shape the maritime battlefield in a cost effective way. The JDAM-ER guidance kits, mines, and regular Mk 80s could even be bought separately, and combined as appropriate during wartime depending on if the mines are needed or if the weapons are better used in a land-strike role. This does seem to be low-hanging fruit for an interesting and unique joint capability at a low price.