tool or aspect of operations. Making mistakes does not cause a student to fail automatically, as long as the mistake is recognised and corrected before the submarine is endangered. If at any point during the training a candidate is withdrawn from training he will be nominated for boat or helicopter transfer and kept occupied until the transfer. Their bag is packed for them and they are notified of the failure when the helicopter or boat arrives. On departure they are presented with a bottle of whisky. A failure on Perisher means that the unsuccessful candidate is not permitted to return to sea as a member of the Submarine Service (although they are still allowed to wear the dolphin badge). They are, however, permitted to remain in the Royal Navy, moving into the surface fleet. Notes References External links BBC late '80s documentary Royal Navy Submarine Service Naval education and training in the United Kingdom Naval education and training in the Netherlands Submarine education and training