Given the above, it should be noted that budget constraints hamper effective execution of the constitutional mandate, particularly with respect to the requirements within an acceptable force design. The SA Air Force could only partially meet targets set. The SAAF did not achieve the targeted flying hours. The helicopter capability sub- programme could not achieve targeted flying hours due to operational requirements which resulted in less force preparation (training). Rooivalk aircraft could also not be properly serviced due to protracted contract negotiations with the service provider. The transport and Maritime Surveillance capability could not achieve targets. This is due to technical failures of aircraft and delays in scheduled maintenance. The number of mission-ready air-traffic controllers (64 daily) could not be achieved, as members failed fitness tests and could not complete initial training.