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Rad 8: Rad 8:
 
; Vertical separation : You need a vertical separation for an intercept which depends on altitude, airspeed and bank angle. A rule of thumb is 40 000 feet (12 km / 6.5 NM) for a head on situation. The turn radius is half this distance.
 
; Vertical separation : You need a vertical separation for an intercept which depends on altitude, airspeed and bank angle. A rule of thumb is 40 000 feet (12 km / 6.5 NM) for a head on situation. The turn radius is half this distance.
 
; Lag - pure - lead pursuit : You start the intercept by lag pursuit and the target should pass your centerline for a lead pursuit just before half the turn for a head on intercept.
 
; Lag - pure - lead pursuit : You start the intercept by lag pursuit and the target should pass your centerline for a lead pursuit just before half the turn for a head on intercept.
; Starting turn : For a head on intercept you need to start the turn approximately 1.5 times the   
+
; Starting turn : For a head on intercept you need to start the turn at approximately 1.9 times the vertical separation (or 3 times the turn radius). The angle off the nose is always 32 degrees.    
  
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===Head-on intercept geometry===
 +
[[File: intercept_geom_R.png]]
 
===Animated intercepts===
 
===Animated intercepts===
 
====Top view====
 
====Top view====

Versionen från 24 juni 2021 kl. 14.47

Home >> Aviation guides >> Intercept

Intercept

A short guide for the basics of intercepting flights, mostly for offensive operations such as visual identification, but also applicable for joins with friendly aircraft.

Basic principles:

Vertical separation 
You need a vertical separation for an intercept which depends on altitude, airspeed and bank angle. A rule of thumb is 40 000 feet (12 km / 6.5 NM) for a head on situation. The turn radius is half this distance.
Lag - pure - lead pursuit 
You start the intercept by lag pursuit and the target should pass your centerline for a lead pursuit just before half the turn for a head on intercept.
Starting turn 
For a head on intercept you need to start the turn at approximately 1.9 times the vertical separation (or 3 times the turn radius). The angle off the nose is always 32 degrees.

Head-on intercept geometry

Intercept geom R.png

Animated intercepts

Top view

Join topviev.gif

Radar PPI view

Join PPI.gif