HMS Courageous was a British Courageous Class aircraft carrier of 18600 tons displacement, originally built as a shallow draftcruiser in 1915 under the Emergency War Programme to operate in the Baltic. It was the first Allied warship to be sunk by enemy action in the Second World War. She was sunk on 17th September 1939 by U-29. HMS Courageous was powered by eighteen Yarrow boilers providing a top speed of 31 knots. She was armed with sixteen 4.7 inch guns, four 3-pounder guns and fifty smaller guns and carried a crew of 1100 and six aircraft comprising two Flycatcher fighter aircraft, two Fairey III reconnaissance and two Darttorpedo aircraft. Research Courageous