On 5 July the group switched from Nieuports to SPAD XIIIs. The 94th switched over first, then by the middle of August the other three squadrons were also converted. Unfortunately, the American mechanics were unused to the V-8 engines of the Spads and so availability of the Spads suffered for the first few weeks after the changeover. On 9 July the group moved closer to the line at Saints Aerodrome. It is while stationed at Saints Aerodrome that Theodore Roosevelt's youngest son Quentin Roosevelt, flying with the 95th Aero Squadron, was shot down and killed on 14 July 1918. With the front moving north and east, the Group was now between 50 and 70 km from the lines. An advanced landing field at Coincy Aerodrome was established on 5 August for refueling and a detachment was established there from which alerts were dispatched.