As promised a response from Richard B:

“Hi Rick

For years there has been reports that the T45’s will carry only Aster 30, but it’s never been confirmed. The necessary detail about the two UK Aster orders so far placed is not in the public domain – i.e. we don’t know if they are only for Aster 30 missiles or whether some shorter range [and cheaper] Aster 15’s are in there as well. However we do know that the T45’s will initially have 48 Sylver A50 cells suitable for both Aster 15 and 30 (indeed DCN recently issued pics of the first UK modules being completed), with volume allowed for another 24 cells if the requirement emerged in the future.

The bottom line is that the T45’s will be able to carry a mix of Aster 15 and 30 as required – if the missiles are available.

Regards

Richard”