Harrier GR7 - LERX / "Frogs Eyes" Question
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Harrier GR7 - LERX / "Frogs Eyes" Question
The majority of Harrier GR7s were delivered with "65% LERX" and retained these throughout their upgrade to GR9s. Part of their upgrade required them to have "Frogs Eyes" fire access points to be added as new wiring blocked the original points in the wing leading edge. This is one external difference to help identify GR9s from GR7s.
However, GR7s ZG477-ZG480 and ZG500-ZG505 were initially configured with 65% LERX and Frogs Eyes, even though they were designated as GR7s. Why were these 10 aircraft different? Were they given the new wiring configuration without the rest of the avionics being in place?
Secondly, at some point these same aircraft were updated to 100% LERX, the only GR7s (outside of a trials aircraft) to have a LERX upgrade. Does anyone know why this is the case? Why were other GR7s not updated in the same way, why only these?
Thanks for any help you can give.
However, GR7s ZG477-ZG480 and ZG500-ZG505 were initially configured with 65% LERX and Frogs Eyes, even though they were designated as GR7s. Why were these 10 aircraft different? Were they given the new wiring configuration without the rest of the avionics being in place?
Secondly, at some point these same aircraft were updated to 100% LERX, the only GR7s (outside of a trials aircraft) to have a LERX upgrade. Does anyone know why this is the case? Why were other GR7s not updated in the same way, why only these?
Thanks for any help you can give.
