Crews from Yorkshire's air ambulance were "stretched to the limit" over the Bank Holiday weekend.
The helicopter was called out to 18 incidents across Yorkshire
The emergency helicopter was called out to 18 incidents across Yorkshire, of which 14 were road accidents, compared with nine in the same period last year.
Spokesman Mick Lindley said: "It was our busiest Easter Bank Holiday ever. It was quite remarkable, we were literally stretched to our limits."
A second air ambulance is due to go into service later this year.
The new helicopter was funded by donations made by the public following Top Gear star Richard Hammond's high speed crash at Elvington last September.
The service is also extending its operating hours from 10 to 12 hours per day, between 0900 and 2100.