By 1926 the O-1B (Vought VE-7G) Observation Floatplanes were worn out - after only four years of service! They were in terrible condition, many had been wrecked by storms at sea, and the Texas Air Force struggled to keep planes on the Navy's newest ships. Requirements were published, and bids taken by various airplane manufacturers in the US and Great Britain.
The winner was another Vought product - called the O2U-1 in the US Navy, and adopted for Texan service in 1927:
The Corsairs were far more durable than their predecessors, with a metal tubing structure that better withstood the elements. They were also faster, had greater endurance, and were well liked by their pilots. By 1928 both Naval Observation Squadrons - the 16th and the 19th - were equipped with the O-2, and the older aircraft junked.