Angled decks and side lifts before the jet age

Would an angled flight deck and side lift make much difference on a pre-jet carrier?

A side lift could improve hangar capacity. An angled deck would be less necessary while barriers could reliably stop the slower landing aircraft.

Side lifts could improve hangar capacity on a carrier operating piston aircraft. The case for an angled deck is weaker when landing aircraft are slow enough for a barrier to stop them. Under those conditions, continuous launch-and-recovery operations do not require an angled landing area. The benefit depends on the aircraft and the way the carrier operates.