Jane,
Whilst I think of it, the angle an aircraft would be able to dive at would depend upon the weapon to be released (weight and aerodynamics) as well as the internal characteristics of the bomb bay for the aircraft, the position of the bomb in the bomb bay and how the weapon is/ was released. Fuel load, engine type, propellor blade design would also have an influence on the dive angle allowed.
I haven't said anything about aircraft design as you have asked about specific aircraft. Having written that, how ever, there were significant differences between different models of the same aircraft type.