Can't say i've heard anything. Where did you get your information from? Got a link?
wikipedia
The Sparrowhawk was ideal for use in an airship because of its small size, 20 feet (6 m) long and 25 foot ( 7 m) wingspan. The Sparrowhawks had a hook attached to the top wing which was used to attach to what the crews called "the flying trapeze". The plane was then pulled into the airship. The planes were stored inside the airship until it was needed to be flown. It was attached to the trapeze, which dropped out of the airship. To begin flight, the pilots simply released the hook and fell free. In order to increase range, some Sparrowhawks had their landing gear removed and replaced by a fuel tank. Landing gear was unnecessary, as the planes did not land on the ground.