The correct answer is the Blackburn Roc. The Roc was a “fighter” development of the Blackburn Skua dive bomber using the same turret fighter concept as the Boulton Paul Defiant in that its sole armament was four 0.303 in (7.7 mm) machine guns in a powered dorsal turret. The reduced firepower (compared to land based fighters such as the Hawker Hurricane) was offset by the ability to direct it in any direction. In practice the weight of the turret made the Roc slower than the Skua, and the Roc eventually found its niche as a dive bomber.
The correct answer was submitted by intruder38, wayne baker and skybolt2003. Intruder38 is first with 4 correct, wayne baker is second with 3 correct and skybolt2003 is third with 2 correct. Question #5 will post shortly, and thanks to all who participate!
Brian [C):-)]