Were early bombers too fast to intercept?

Before engine power increased, did bombers tend to be faster than the interceptors intended to catch them?

Sometimes, but altitude and uneven investment in interceptors were also important, and stronger engines later reduced the bomber's advantage.

The answer accepts that some bombers could be faster than the fighters expected to catch them. The imbalance also reflected how much had been invested in interceptor development and the advantage bombers gained by operating at altitude. Increasing engine power helped fighters reach those altitudes with useful performance. The exchange shows why the interwar belief in an unstoppable bomber was contingent on technology and procurement rather than a permanent rule.