What is the purpose of an Apollo tank?

[Green George]

My understanding is that the Rover K series was designed for transverse installation and when installed north south as in a caterham the oil pick up is not optimal for sustained high speed cornering (particluarly in right hand bends?), resulting in a rsignificant eduction in oil pressure with an increased risk of oil starvation to the big ends. The apollo tanks were used by Caterham to negate this reduction in oil pressure. However, I am not sure how it helps.

Forums are fantastic places to keep up to date on a subject and research. However it can at times be a little subjective i.e. personal perspective, feelings, beliefs, desires or discovery, as opposed to those made from an independent, objective, point of view.
That is why, I would very much like to obtain an objective view on what an Apollo tank does? I suspect, I am not alone.

I know it is a swirl tank using centrifugal force to separate air from oil. The process allows the oil to be seperated from the air which rises to the top and escapes via the return pipe into the head.

I have also heard decribed as a half way house between a wet sump and a full dry sump system. If that is the case, can someone explain what is meant by that, please?

[Green George]

Dave, does your opinion differ with higher performance engines at all?
I am thinking of VHPD K series. I have seen it often said that a dry sump is vital if the car is to be used on Trackdays.