Why Zeppelins made poor torpedo bombers

Did anyone try using Zeppelins or similar airships to drop torpedoes?

British and German experiments are recalled, but a high drop could break the torpedo and a large airship was unsuitable for the low approach required.

British and German experimenters considered a variety of unusual air-launched weapons. The recollection here includes attempts to use torpedoes, though the examples are not identified. A high drop could break the torpedo before it reached the water. Bringing a Zeppelin or similarly large aircraft down to the necessary release height created another practical difficulty.