If the Sinai Peninsula vanished when the Suez Canal opened

How would British and Egyptian policy change if the Sinai Peninsula ceased to exist in 1869?

The route to India would no longer depend on a canal-controlled passage, fundamentally changing the naval problem described in the answer.

The hypothetical removes the Sinai Peninsula in 1869 while setting aside climatic effects. Egypt would remain attached to Africa but lose its land connection with Asia. The scenario imagines a Mediterranean open at both ends, with passage to India no longer controlled through the Suez Canal. That is treated as a major change in the Royal Navy's strategic problem, although no new basing or defense plan is developed.