> Having turned the GP through 90 degrees, the air
> shafts now point east and west. Look at the
> longitude of the central meridian of 31 degrees 14
> minutes East and that of Lake Tana (37 degrees 28
> minutes East if my memory serves me correctly).
> Might the 45 degree angle of the Kings Chamber
> south shaft indicate the central meridian? Might
> the mean differences north and south shaft, using
> all the measurements that are bandied around, be
> difference in longitude?


Sorry. The differences in air shaft angles are not those between the north and south but between KCN/QCN and also between KCS/QCS.

Further to my last post, at the height of 24 degrees North, the horizontal difference between the centre of the "King's Chamber" and the centre of the "Queen's Chamber" is the difference in latitude between the central meridian of Egypt and the centre of Lake Tana.

I apoligise for any confusion.

David

"When you do not know where you are going, any road will take you there".