11 Radar Systems of Air Transport
207
Fig. 11.18 ACR on-site
for MRL are determined by the specifics of objects, with which these radars operate.
The radar locator must indicate the position and determine the main parameters of
moisture targets that are dangerous for aircraft flights.
Surveillance and landing radar locators (SLRL) simultaneously perform the
functions of airfield and landing radars at small airports of local airlines.
The need for and the possibility of this type of radars is defined by the specific
operating conditions of small local airline airports.
The particularities of radar support of the most of them are as follows:
• small airports of local airlines are served by AV with relatively low speeds and
low altitudes;
• sometimes there is no stationary runway at local airline airports, and the aircraft
landing course can be promptly changed within 360° depending on the wind
direction and the surface condition of certain sections of the airfield;
• the staff of dispatchers of local dispatch centers is limited;
• to increase the profitability of local airline airports, the cost of radio-technical
flight support equipment, as well as the cost of its operation, should be relatively
small.