i´m challenging those 40 Years of experience,yes.
If the engine designer and Gearbox designer has no clue about the loads his new baby has to transmit in its function as a main loadbearingmember the thing will never ever perform.The stiffness issues are main considerationsas you don´t want to have peaks of stiffness or lows in weakness along the wheelbase of the car.
When Teams used Magnesium Gearbox castings very often the Car became undriveable during a weekend or even in a race when temps got too high and the magnesium lost its strength.Torsional rigidity suffered dramatically and made a dog out of the beauty ,with no chnce to find a setup.
If you take of a aero device or apiece of the sidepot or a nosecone,you still have a car ,but if you dismount the engine or gearbox this is a bit of a different storyin the case of a f1 car,is this so hard to understand?
If I´d ask you where the suspension is mounted to you´d always say it´s mounted to the chassis.
The point is In F1 the engine and Gearbox double as chassis members.This is the reason why the Teams want the manufacturers to integrate their engine design to their theircar design.only if you design it as a functional unit you get the results.
but lets get over this now,i´m a bit tired to discuss this any frther.as we are just discussing the meaning of a word..or would you say gearbox s/engine /installation stiffness are not major design criteria foggr chassis performance?????So basically we should have the same view on the subject itself but hey I say the monocoque is the forward part of the chassis and you say it is the chassis.My view is the integrated one wich all big heads proclaim for years now,whereas yours is the one written in the books separating a car into chassis ,engine gearbox.
Just one more for thought:In the early days of motoring the chassis and body of the car where two different entities.Today the cars (most of them) do not even have something like a frame underneath,if at all they sport subframes for the suspension ..You cannot tell the Body from the chassis anymore it is both and it is correct to say it´s a chassis as well as it is the body shell of the car.so it´s the Same story with,different players