It is the word "descending" that is not compatable between services. In the RAF it means (I suggest you) descending (strangely) whilst in the RN it means "Hold the height knobber".
Otherwise RAF(SH&SAR) & RN is pretty much a variation on the same theme. ...and the units may as well be bananas.
The Luftwaffe crewman are not allowed to 'direct' (perceived as Order) the pilot which makes life interesting. Once oberhead a landingplatz the crewman states that the landingplatz is clear and all VM ceases as the pilot finds mother earth himself.