What the paper testsA jet-fuel twin with full-authority control
The Centurion is a turbocharged, liquid-cooled compression-ignition engine burning Jet A-1, driving the propeller through a reduction gearbox and clutch, and managed end to end by an electronic engine control from a single lever.
Nothing about mixture, magnetos or carburettor heat applies. Gearbox and clutch inspection intervals, coolant, and the behaviour of the control unit do.
What is insideOne variant, nothing else
Thielert and Austro DA42s are separate subjects on AIVR CPL with separate banks and separate papers. A practice set, test or exam here is drawn only from the Thielert bank.
They look like the same aeroplane and they are examined as two.
Where marks go missingEngine-out numbers and control logic
As with any twin, the asymmetric speeds and single-engine performance carry disproportionate marks. On this variant the electronic engine control adds a second cluster — what it does automatically, what it will not let you do, and what a control failure actually presents as.
The electrical system matters more than on a piston twin, because the engines depend on it.
How to work through itA small bank, so run it dry
Work the whole bank rather than sampling it. Practice mode through the systems, test mode until nothing new appears, then the 50-question paper on the clock.