6m WSPR and aircraft

Just checked my early spots of G8EPQ (77km) and notice 3 Doppler shifted traces suggesting the involvement of aircraft reflection in the path between us. The path is so regular that pure tropo may support propagation but signals may well be enhanced by well positioned planes on the path with sufficiently low Doppler to allow WSPR decodes.

UPDATE 1058z:  G0OQK (98km) was spotted at 1028z, presumably helped by aircraft.