What will be the expiry date of a new class 1 medical certificate if the examination is passed on June 1st and the current expires on July 10th?

The new class 1 medical certificate's validity period is determined by the expiration date of the current medical certificate and the date of the examination. In this scenario, if the examination is passed on June 1st and the current certificate expires on July 10th of the same year, the new medical certificate will take effect immediately and will be valid until the date that corresponds to the expiration of the original certificate.

Since the current certificate expires on July 10th, the new certificate issued as a result of passing the examination would logically expire on the same date in the following year—July 10th of the next year. This aligns with the standards typically observed in aviation medical certification, where the new certificate inherits the expiration date of the current certificate following the successful examination, unless a longer duration is specified based on age or other factors.

Thus, the correct answer is that the new class 1 medical certificate will expire on July 10th next year.