Main Page | See live article | Alphabetical index A Black Swan Class Escort Sloop,capable of out running surfaced type VII and IX U-boats. Four ships were built two by Yarrows (HMS Black Swan, HMS Flamingo.) and two by Richardson Westgarth at Furness (HMS Erne, HMS Ibis,) HMS Ibis was sunk by an Airborne Torpedo from an Italian aircraft in the Western Mediterranean, North of Algiers on the 10th November 1942. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.