Comment on "Keel-fixed versus keel free: Spectrum 144: self-sustaining yaw-roll oscillations"
Regarding Pilot attached towing, some are pilot attached only, some 1-to-1 with the keel, some 2-to-1 one with the keel. The center of mass is...the wing...but you can tow pilot only, or even keel only (it's been done) but...