MIDWAY OPERATIONS: U.S. Navy Task Force 17, consisting of the aircraft carrier USS Yorktown (CV-5), departs Pearl Harbor to join Task Force 16 northeast of Midway Island. The Yorktown Air Group consists of Bombing Squadron Three (VB-3) with Douglas SBD Dauntlesses, VB-5 with SBDs, Fighting Squadron Three (VF-3) with Grumman F4F Wildcats, and Torpedo Squadron Three (VT-3) with Douglas TBD Devastators.
The 7th Air Force in the Territory of Hawaii dispatches six B-17's to Midway Island to reinforce the fifteen that are already there.
A Japanese task force consisting of two light aircraft carriers and two troop transports departs northern Honshu Island for the Aleutian Islands.
ALASKA (11th Air Force): 77th Bombardment Squadron (Medium), 28th Composite Group, based at Elmendorf Field, Anchorage, Territory of Alaska, begins operating from Umnak, Aleutian with B-26's.
CHINA-BURMA-INDIA (10th Air Force): Myitkyina, Burma is again hit by B-17's. Again no activity is observed and the attacks are discontinued. HQ 7th Bombardment Group transfers from Karachi to Dum-Dum, India.
PACIFIC OCEAN AREA (POA, 7th Air Force): 7th Air Force begins flying B-17's from the Territory of Hawaii to Midway in the face of an expected attack on that . 394th Bombardment Squadron, 5th BG (Heavy), transfers from Hickam Field to Bellows Field, Territory of Hawaii with B-17's.
INDIAN OCEAN: The Japanese submarine HIJMS I-10 launches a "Glen," to fly a reconnaissance mission over Diego Suarez, Madagascar. The Harbor of Diego Suarez: Nightfall on with the sky clear, bright and a full moon. Some reports suggest that the midget submarine from I-16 was unsuccessful in getting into the harbour. This statement is not supported by eyewitness reports from crewmembers on both the British Loyalty and HMS Ramillies. Both reported seeing the conning towers of two small submarines in the harbour around the time of the attack. The midget submarine from I-20 was definitely in the harbour and at 2025 hours started a torpedo attack.
It almost immediately scored a hit on HMS Ramillies, which blasted a 30ft by 30ft hole in her port bulge. It caused severe flooding to a number of decks as well as power and communication failures within the vessel. In spite of HMS Ramillies' severe damage there were no fatalities on board and injuries were limited to one broken arm and some bumps, bruising and concussion. The torpedo had passed very close to the stern of the tanker British Loyalty on its path to the Ramillies. Having witnessed the attack on the Ramillies, the Master of the British Loyalty ordered her crew to get all the boats out and heave up the anchor.
He then rang the Engine Room Telegraph signalling "standby". It was now nearly an hour since the first attack and the Loyalty was just beginning to move aft, away from her original forward anchor point. Signalman Harry Barnet was watching from the deck of HMS Ramillies and was horrified to see the track of a second torpedo, which appeared to be heading directly towards his ship. As he looked out he could see British Loyalty, just underway, going astern and directly into the torpedo's path.
It was now 2120 hours and the tanker was hit in the after part of the engine room and caught the full blast of the weapon that had been intended for the Battleship. The crew on the midget from I-20 had fired their second torpedo.
The stern of British Loyalty began to sink rapidly and her Master, R. Wastell, gave the order to "Abandon Ship". If this second torpedo had hit the already badly damaged Ramillies, this elderly battleship would have certainly sunk.
Nearly all the Ramillies' crew were engaged in stemming the flow of water through the damaged hull and pumping out the flooded decks.
They also had the delicate task of removing bombs, shells and bullets from the flooded ammunition stores. In the meantime the British Loyalty had sunk to the bottom of the harbour In around 67 feet of water with only part of her funnel visible above the surface. Her stern was now firmly embedded in the harbour mud. After the attack, the two-man crew of the midget submarine from I-20 attempted to leave the harbour, but in their haste and due to defective steering, grounded the midget on a reef. They abandoned their craft, swam ashore and started to walk across the barren countryside of Northern Madagascar in an attempt to reach the agreed rendezvous point with their mother submarine I-20 near the thickly wooded hills of Cape Amber. They also knew I-20 would wait for two days at the pick up point before finally departing.