Issue 6/1975 Articles Issue Geschichte1975 Swiss Championships W. Heise6/1975 GeschichteReview of the HI-FLY RC Sailboat Model W. Heise6/1975 GeschichteTips for Model Aircraft Instructors W. Heise6/1975 GeschichteModel Airplane Building Class, Fall Break 75 W. Heise6/1975 GeschichteWe're building an indoor model airplane W. Heise6/1975