I would interpret it to be that if you have two flights totalling 5 hrs with intermediate return to a base where MARMS can be downloaded, that should be done. On the other hand if it is a single trip of between 4 and 5 hours that is OK because it is operationally difficult to download within 4 hrs.
In reality most trips from Abz are less than 4 hrs flight time.
Last edited by HeliComparator; 17th Jun 2012 at 10:11.