What is the length of service?

• A. 12 years plus 27 days a year reserve for 12 years
• B. 10 years
• C. 6 years
• D. 20 years

Answer: (D)

Length of service is the total time you have spent in the armed forces from the date you joined to the present. It’s simply a running count of years served, not a measure of rank or number of postings. In RAF career planning and pension terms, two decades (twenty years) is a common milestone used to denote a substantial period of service, so twenty years aligns with the typical expectation for this measure. Shorter figures don’t reflect the standard time-in-service count, and any phrasing mixing days or reserves isn’t how service length is normally reported.