The data approved in the OSD FC are linked to the minimum training syllabus for a pilot type rating. An evaluation of differences (e.g. for aircraft modifications or between variants) identifies minimum training levels and associated training devices, if required.
With regard to the acquisition of knowledge through theoretical training, some elements may be validated as Level A and can be adequately addressed through self-instruction, whereas other elements may require aided instruction and are identified as Level B. Training organisations may find it more practical to combine Level A and Level B elements into one module of the higher level (such as computer-based training or instructor-led sessions).
With regard to the acquisition of skills through practical training, the OSD FC minimum syllabus identifies elements requiring Level C, D or E practical training and these elements are usually associated in the OSD FC document with specified training devices.
In principle, the devices described in the OSD FC document and the devices used in pilot training should be of the same training level. The use of a more complex device requires additional considerations, regarding the capabilities and characteristics of the device and the impact this may have on the training objective(s).
As an example, the OSD FC may refer to an FMS desktop trainer for Level C training. FMS training in an FTD, an FFS (without motion or vision) or in the aircraft (static, on power) may provide the same training objectives. However, the more complex training environment introduces elements which may affect the focus of the training, the time required, or other factors and these should be taken into consideration.
The same principles apply for the substitution of an FTD. To replicate the characteristics of an FTD Level I with an FTD Level II, to replicate an FTD Level I with an FFS (without motion or vision), or to replicate an FTD Level II with an FFS (without motion or vision) require different considerations to preserve achievement of the training objective.