She has a length of 21.95m, 4.57m beam, 1.40m draft with Gross Tonnage of 59.
The HDML was designed by W J Holt at the Admiralty in early 1939 and ML 1392 is one of 486 HDMLs constructed mainly by yacht builders in the UK as well as other Allied countries.
Originally her complement would have been 10 personel and she would have typically been armed with a QF-2 pdr main gun, 20mm Oerlikon AA Cannon and 0.303 vickers machine guns located either side of the bridge. She would have also carried 6 to 8 depth charges on her aft deck. As the QF-2-pounder guns were not particularly accurate, possibly because of the boats' tendency to roll many were replaced by another 20 mm Oerlikon gun.
Engines on this type of vessel varied but her diesel engine and single propeller would make between 11 and 12.5 knots.
As part of the 149th ML Flotilla she was a navigation leader at Gold Beach during the D-day landings in June 1944. On 6 March 1945, she captured a Biber type German midget submarine off Breskens in the Scheldt estuary.
After the war, she continued in service as the fast despatch boat FDB 73.
In the 1960's she was sold and became the motor yacht Frol-Pejo and by the mid 1970's she had been renamed Sarinda.
A total rebuild as a luxury motor yacht was started in 1979 and completed by a new owner after she was sold in 1987.