[aerohead]

freebeard's #75 (permalink) shows Mair's schematic.
NOTE: the drag curve values represent pressure drag only. The friction drag component has been removed.
Long ago I posted a 1991,full reconstruction of Mair's wind tunnel model, and total drag profile, as a function of truncation.
The model is a streamline body of revolution, similar to a 16%-thickness fuselage, with an overall length equal to 6.2- diameters, ogival nose section of 1.3-diameters, cylindrical section of 3.0-diameters, and boat-tail of 1.9-diameters.
The fully-boat-tailed body is Cd 0.066 in free air, at supercritical Reynolds number.
It's Cd 0.204 without the boat-tail.
Mair uses a zero-to-22-degree transition over the primary 52% of tail length, then holds a constant 22-degree downslope for the 48% remainder of the tail. ( Toyota has been using this transition profile for their Prius-II-through today's current model. McLAREN is using it on it's Speedtail. Among others.
It's been lost to the PhotoBucket kidnapping / ransom scheme.