Hinckley Yacht Services, the newly renamed Little Harbor full service complex here, has announced the appointment of David Frank as electronics department supervisor, establishing the department as a full service dealership. He will be assisted by Roger Bernard as electronics service manager. Previously, electronics work at Little Harbor was subcontracted out to vendors and technicians in the Portsmouth area. "These men have been working in the marine electronics business for over 25 years so they know the clientele and the demands of the job," said Geoff Prior, operations manager of the yard. Frank brings 17 years of experience as a marine electronics technician. manufacturers such as Furuno, Northstar, B&G, Seatel, and Raytheon.