Widebody Transport
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 11.0
Situational Awareness; Training / Qualification
ATC Issue All Types; Deviation / Discrepancy - Procedural Published Material / Policy
General None Reported / Taken
Procedure; Human Factors
First session training since Marc; I had cleared Aircraft X for takeoff from Runway XX at heading 270 [and it] was 1 mile off the departure end when I cleared Aircraft Y for take off from Runway XX heading 270. When Aircraft Y tagged up on the radar; he was 4SM in trail with Aircraft X.Allow more time between departures to ensure appropriate wake turbulence separation.
Tower Controller reported that after clearing an aircraft for takeoff it did not have enough in trail distance from another aircraft departing the same runway.