The deployment of a replacement for the CH-46 will be postponed conservatively for five years probably necessitating an expensive service-life extension program for the CH-46s.
In his reply President Bush invites the UK to "participate at an early stage in any program to replace the D5 missiles or to discuss a further lifeextension - for your purposes - of the D5 missile to match the potential out-of-service date of your new submarines".