The AWACS (E-3) is a 707-300...
It can be equipped with JT3D or CFM-56 engines.
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I flew the 707-300s with JT3D-3B of 18,000 lbs thrust.
Typical VmcA-1 was about 120 Kts, and VmcA-2 was about 145 Kts.
I never flew 707s with CFM-56, but I flew DC8-70s with such engines.
Fitted on E-3, with increased thrust, I would expect VmcA-2 increased by some 10 Kts...
Was more than 150 Kts in the DC8-73...
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The 707 had a boosted rudder (hydraulic system).
Full 3000 psi was available when flaps were 14 and speed was low.
At higher speed, and flaps up, the boost pressure reduced to 750 psi...
Hope my numbers are correct, my last flight on 707 was 20+ years ago.
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Happy contrails