What would be the approx pension of a ex navy petty officer retired on 31 July 1999?

The pension for an ex-Navy petty officer retiring on July 31, 1999, would depend on various factors, including their length of service, rank, and the specific pension scheme applicable at that time. Generally, pensions for military personnel are calculated based on a formula that considers years of service and final pay. For an accurate estimate, it would be necessary to consult specific military pension tables or contact the relevant pension authority.