Probably more to do with the Harrier having a full traceable history, is in excellent condition and being complete with a Engine, so a potential flier.
The Tornado on the other hand has no Engines nor an APU and probably is a bitza, having said that the rarity is in a museum sense as it's complete outwardly looking and rare as most were reduced to produce.
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Last edited by NutLoose; 27th Jul 2014 at 16:44.