What difference could a Blackburn Blackburn-style aircraft make at Jutland?
Short answerA scout could be valuable only with reliable wireless; the historical Rutland of Jutland episode shows that reporting, not merely seeing, was the limiting factor.
NotesThe hypothetical Blackburn Blackburn is granted a suitable engine and availability in 1915. Its value at Jutland then depends on working radios. Alex invokes Rutland's sortie as an example of an aircraft whose observer needed to communicate what he saw, and recalls a landing to try to repair the radio. The limitation is reporting the reconnaissance to the fleet, rather than simply putting a scout into the air.