As I understand it MCS is correct when he talks of control 'law' switching with flap lever position.
We are NOT talking about Normal or Alternate Law but the response rate of the controls with relation to sidestick deflection. F3 will give more roll response (ie bigger rate) with the same sidestick input than will Ffull. This came to light after an incident on one of our minibusses many years ago.
The slats were not in the correct position and the flap handle was put to the full position. This resulted in an a/c very difficult to handle because the roll response was incorrectly scheduled.
Normally this rate change is transparent to the pilot and thus is not dicussed in the FCOMs. It is VERY important to use the correct Flap Handle position when there is any Flap or slay fault present.
A double rad alt failure will cause Alternate law then Direct law because the a/c cannot 'schedule' the change over to flare law as it nears the ground cos it doesn't know when it's approaching terra firma. It therefore leaves it up to the pilot!
B'run
Technically correct, but with the a'pilot off then Direct law will kick in with gear down. Better though to wait for F3 and Gear down cos then you wont have to trim it with the wheel!