ORAC wrote:
Having to turn off the HF when tanking is a deficiency? It was always considered a prudent safety precaution in years past.
Not quite. It was only necessary to deselect HF transmitters during AAR, but there was no restriction on receiving provided that any 'auto tune' of the antenna was disabled so that changing receiver frequency did not cause any transmissions as the antenna tuning unit matched the antenna to the new frequency - as was the case with the early HF system in the VC10K before 'auto / man' HF tuning was fitted.
Another stupid HF design in a different tanker turned off the receiver audio when SELCAL was selected on. Which made it impossible to conduct a normal SELCAL check with the ATCC....
Which bright designer thought up that idea?