Mode A Reconstruction A SASS-C reconstruction process is responsible for determining expected mode A code for a chain at a given time. Mode C See SSR Mode C. Mode C Out-of-spec. A Mode C is said to be Out-of-spec if it is less than FL- 12 parameters or greater than FL700 parameters. Mode of Delivery The way used to deliver a training (group or individualised, material or instructor dependent). Mode of Flight 1- Segment of mixed modal behaviour with respect to the ground in the modelled representation of aircraft trajectories.
2- An aircraft in motion, characterised by its Transversal and Longitudinal Accelerations. Examples are Left Turn, Right Turn, Climbing/Descending state, Uniform Motion, etc. M017's are used as input classes in the evaluation system, particularly for accuracy analysis. The classification of Modes-of-Flight (MOF) concerns modes in three directions: transversal modes, longitudinal modes and vertical modes.
Mode Select
A new form of SSR data link capability improved addressing capacity and increased selective target capability.
See SSR Mode S. Mode Select Address The 24 bit technical address broadcast by the Mode A transponder in response to Mode A all call interrogations (and also encoded into the parity field for roll call interrogations). Mode Select All Call Unaddressed OF 11 Mode S interrogation or DF 11 transponder reply addressed to a particular II code. Mode Select Radar A co-operative surveillance and communication system that has been designed as an evolutionary improvement to the existing SSR system. With a Mode S radar, only one scheduled surveillance interrogation and one reply are required on every antenna scan to accurately track the aircraft. Each aircraft reply has a unique 24 bit mode S address permanently associated with the aircraft. Mode Select Roll Call Addressed OF 4, 5, 20, 21 or 24 Mode S interrogation or DF4, 5, 20, 21 or 24 transponder reply. Mode Select Specific Protocol A protocol that provides restricted datagram service within the Mode S sub network. Mode Select Sub network A means of performing an interchange of digital data through the use of SSR Mode S Interrogators and transponders in accordance with defined protocols. Mode Select Target Reports Mode S target reports refer to those target reports capable of passing the standard Mode S default filter.

 
Mode SSR
The conventional identifier related to specific functions of the interrogation signals transmitted by an SSR interrogator.
Model
A description or analogy of a real or hypothetical situation, usually formal and simplified, which is used to develop understanding.
Module
A coherent package of functionality that can be considered as an independent logical unit and that has defined interfaces by which it provides and uses services to/from other modules. There is a very sharp distinction between the external interfaces of a module and its internal design and implementation.
A subsection of a teach ware unit referring to a particular module teach ware. Modules comprising units respectively dealing with subject, topic and elements.