Help with Uk Frequencies

[bakerboy]

Just got hold of a Futaba SKYSPORTS 6A Transmitter in the instruction manual it says it can be used on 29,35,36,40,41,50,60 or 72 mkz how the frequencies changed.As I would like to use it with a model boat in the Uk and you can only use 40mhz
Thanks for help given
Gus