Master Shipwright Thomas Strickland had been sent from Great Britain to take control of the construction project. With Sir James Yeo and Point Frederick yard commissioner Robert Hall, Strickland re-designed Frigate B, completely planking the upper deck, creating a spar deck which allowed an increase of armament from 38 to 56 guns. As built, Frigate B was  long between perpendiculars and  long at the keel.
The construction of Frigate B involved Thomas Strickland, Sir James Yeo, Robert Hall, and a redesign of the ship's upper deck with a spar deck that increased armament from 38 to 56 guns. The resulting frigate had an elongated hull between its perpendiculars and keel.