f17582d2_engine___Free_net_encyclopedia__Type
[Description] Intake air is chilled to very low temperatures at inlet before passing through a ramjet or turbojet engine [Advantages] Easily tested on ground. Very high thrust/weight ratios are possible (~14) together with good fuel efficiency over a wide range of airspeeds, mach 0-5.5+; this combination of efficiencies may permit launching to orbit, single stage, [Disadvantages] Exists only at the lab protoyping stage. Examples include RB545, SABRE, ATREX [Type] 
Precooled jets / LACE
Jet engine - Free net encyclopedia
Type