junker ju 88

[Smokey]

Is it true that the speed of the Junkers Ju 88 was massively reduced by the addition of dive brakes?

[schwarzpanzer]

Well, they work kinda like parachutes or air-brakes, so I'd say so.
By how much I don't know.

[R988]

Well in a dive yes, I don't think they would have a huge effect on level speed if they were not deployed, unless they did not sit flush with the bodywork/wings? ( I dont recall examining one in detail so cannot confirm)