Towing Chapter 12 Introduction Tow planes are the most common way that a glider obtains  altitude.  [Figure 12-1]  Winch or automobile tows are being  used less and less as they require more crew, are more difficult  to set up, and the altitude gain for the glider is just a fraction  of what a tow plane can offer. Pilots of gliders and powered  aircraft must abide by all federal air regulations listed in the  appropriate Code of Federal Regulations (CFR) governing  flight. The CFRs that are applicable to pilot certification for  towing gliders is covered by Title 14 of the Code of Federal  Regulations (14 CFR) part 61, Certification: Pilots, Flight  Instructors, and Ground Instructors,”and 14 CFR Part 91,  General Operating and Flight Rules. The following sections  are also applicable: Guidance and towing procedures can also be found in the  Aeronautical Information Manual (AIM) and pertain to flight  in the National Airspace (NAS). •  14 CFR Part 61, section 61.23—Medical Certificates:  Requirements and Duration •  14 CFR Part 61, section 61.56—Flight Review •  14 CFR Part 61, section 61.69—Gliders and  Unpowered Ultralight Vehicle Towing: Experience  and Training Requirements. [Figure 12-2] •  14 CFR Part 91, section 91.15—Dropping Objects •  14 CFR Part 91, section 91.309—Towing: Gliders  and Unpowered Ultralight Vehicles  [Figure 12-3] 