Here are the fastest RC plane passes I could find.

CREDIT:

10. Funjet Ultra - 135 MPH

https://www.youtube.com/watch?v=s89v_8N2FtA

9. Multiplex Funjet - 210 MPH

https://www.youtube.com/watch?v=cXDZf9wCXmY

8. Multiplex Funjet ultra - 225 MPH

https://www.youtube.com/watch?v=TueHP54tTkw

7. Unknown - 230 MPH

https://www.youtube.com/watch?v=YuMCIad06LM

6. BVM Super Bandit - 250 MPH

https://www.youtube.com/watch?v=cnYvrLAdNbo

5. Bajojet with JetCat P-20 Turbine - 273

https://www.youtube.com/watch?v=3NrUXT_ogDE

4. HJK Speedwings - 286 mph

https://www.youtube.com/watch?v=vljy3lKIN-0

3. Behotec 180 - 462 MPH

https://www.youtube.com/watch?v=YVNIWuLs_7E

2. RC Speeder "Inferno" - 468 MPH

https://www.youtube.com/watch?v=YajmqdW9dos

1. Transonic DP - 545 MPH

https://www.youtube.com/watch?v=MoaWlKC3wIM