Surely it's the other way around since the TP's reduction gearbox increases the reaction torque? Most IC engines (with the honourable exception of the Rotax products - which are sufficiently underpowered that it's pretty much a non-issue anyhow) don't have any kind of reduction so engine torque = reaction torque.
Going back to my original question, can anybody quote the actual words used in any military training manual or pilots notes?
G