USS Texas (BB-35) received the first Mark I Ford fire control computer installed aboard a US Navy warship. This computer was the first capable of computing high values of range and range rate changes simultaneously.
The initial Mark I Ford went aboard Texas on 19 July 1916, Serial No. 1. Serial No. 4 (a Mark I Mod. 1 machine) followed in early 1918. No. 1 was replaced by Mark I Mod. 1 Serial No. 16 at the end of January 1918, prior to Texas’s departure for Europe. No. 4 was replaced by Mark I Mod. 3 machine No. 54 in late June 1919, prior to departure for the Pacific.
Texas also received Mark II Ford machines for control of her secondary battery. The Mark II — known informally as the “Baby Ford” — used only one integrator. As of May 1918, four Mark II machines were listed for Texas: Serial Nos. 87, 90, 95, and 101.