The regs quoted in the post by compressor stall appear to be relatively straight forward. But how would this scenario apply?
Suppose a Glider Tug pilot employed by a full-time commercial operation has to aero tow retrieve a number of Gliders flown by overseas visitors, who have outlanded about 60nm from the base of ops.
The tuggie is using a Pa25-235 with wing tanks of 12US gal/side and the hopper part of the airframe is now a storage compartment. Given that there are about four, possibly five gliders to retrieve, he loads three 20lit Jerrycans into the compartment and secures them, planning to refuel out at one of the outlanding sites.
The idea is to fly to the furthest outlander, launch him to an altitude where the glider releases which is sufficient to return to the base in a straight glide.
The Tuggie then proceeds to the next outlander and launches him. By the time he lands at the third outlanding site he would be well and truly into reserves if he returned to base after launching this glider.
Comments?