YANBU is a 50.23 m Motor Yacht, built in the United States of America by Bath Iron and delivered in 1931.
Her top speed is 12.0 kn, her cruising speed is 11.0 kn, and she boasts a maximum cruising range of 5330.0 nm at 12.0 kn, with power coming from two General Motors diesel engines. She can accommodate up to 11 guests, with 12 crew members. She has a gross tonnage of 588.0 GT and a 7.83 m beam.
She was designed by Henry J. Gielow, who also completed the naval architecture. Henry J. Gielow has designed 3 yachts and created the naval architecture for 5 yachts.
YANBU is in the top 10% by LOA in the world. She is one of 169 motor yachts in the 50-55m size range.