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Old 24th Jun 2013, 12:03
  #39 (permalink)  
Flap62
 
Join Date: Feb 2002
Location: Northants
Posts: 692
JG54

Part of the reason designs such as F15, SU27 etc have honking big engines is to enable them to minimise energy bleed in manoeuvres. If the aircraft is more agile due to TV then there may (note may) be less need for huge power outputs so the engines can be smaller (reducing weight, fuel burn and thermal signature) offsetting the weight penalty of TV gubbins.
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