Dorsal Fin Attachment
Posted: Fri Dec 07, 2012 6:39 pm
Walt, The directory shows that you have a 1952 B model yet your vertical fin description matches that of an A model. I'd never noticed this before but the two models attach the dorsal slightly differently. The A has an AN 3-4A bolt mounted upside down to secure the dorsal where the B has two AN 526 screws which hold down "L" brackets on either side of the dorsal fin. Is your dorsal mounted on your B model like Cessna mounted it on the A models? It's interesting too that Cessna chose to use AN 526 non-structural screws rather than AN 525 structural screws. Loads must not be that great on the dorsal.N2255D wrote:The front of my vertical stab is held by 2 AN-4 bolts and the dorsal fin by 1 10-32 screw and a bolt. If yours is really only held by one sheet metal screw on each side I don't think I'd be flying itrunerider wrote: Your 170 stab is held in place by one sheet metal screw on each side and two brackets at the rear of the vertical Stab. I have never heard of a vertical stab departing the airframe of a100 series cessna, so wiggle away.