The US Air Force (USAF) is honing its ability to deliver low-cost anti-ship strikes from the Northrop Grumman B-2 stealth bomber through its QUICKSINK programme.

The USAF has demonstrated the B-2’s anti-ship capability twice in recent weeks against target vessels at sea.

Quicksink

Source: US Air Force

Roll-on/roll-off ships similar to the M/V Monarch Countess are seen as a key element of Chinese defence planning

In July, a B-2 used a QUICKSINK munition to strike the retired roll-on/roll-off (ro-ro) vessel M/V Monarch Countess in the Gulf of Mexico near Eglin AFB, according to the USAF.

The destruction of a ro-ro target is of particular interest, because China is likely to commandeer commercial ro-ro vessels to carry vehicles and personnel should it mount an amphibious invasion against neighbouring Taiwan.

“The development of this technology helps deliver technological superiority to ensure the United States can defend our interests, maintain freedom of action, and seize the initiative over large maritime areas,” says Colomel Matthew Caspers of the Air Force Research Laboratory (AFRL).

Announced in 2022, QUICKSINK is a weapons development programme overseen by the AFRL. The goal is to replicate the ship-killing capability of the US Navy’s Mk-48 torpedo in a cheaper, more-flexible air-delivered platform.

Also in July, a B-2 used a QUICKSINK munition during the Rim of the Pacific naval exercise near Hawaii, which saw US and allied forces sink two former US Navy amphibious assault ships, the ex-Dubuque and ex-Tarawa. The choice of ships was likely intended as a message to Beijing, which has invested heavily in amphibious assault vessels.

A 2022 QUICKSINK test saw a USAF Boeing F-15E deliver a modified GBU-31 Joint Direct Attack Munition that incorporated a maritime seeker on the nose.

That test, also conducted in the Gulf of Mexico, resulted in the destruction of a full-scale target.

Depending on the size of the weapons, the B-2 could conceivably carry dozens of QUICKSINK munitions.