[2][3] Over the following years the race meetings continued at regular intervals but there was still no team formed to compete in the British league system.

[1] The following season the team joined the 1947 Speedway National League Division Three and led by captain Ken Tidbury and top scorer Wally Green, they became champions.

[5][1] The team returned to compete in the Southern Area League and struggled until Leo McAuliffe and Jimmy Heard helped lift them to second place in 1956.

The gulf in quality of teams was evident after the merging of the two leagues, with the Eagles winning the title 56 points clear of bottom club Exeter Falcons.

The Eagles became the British champions for the second time after winning the 2000 Speedway Elite League, with Martin Dugard once again being the star for the team.

They then topped the table in 2002 but lost the play off final, although consolation was gained by becoming Elite League Knockout Cup winners in 2002.

[13] The Eagles continued to compete in the Elite League and won their fourth highest division Knockout Cup win in 2008.

As of 2023, a consortium continued to search for a new venue to bring back speedway to Eastbourne[16] and in 2024 the Arlington Staduium's owners (the Dugards) were approached to race NORA meetings.

[18] The Seagulls' first two signings for the season were Jake Knight and Richard Andrews, both returning to Arlington having ridden for the Eagles when they were in the National League.

[21] The Seagulls then completed the signings of Chad Wirtzfeld and Connor King, who both had previous National League experience with the Isle of Wight Warriors.