airtech — II. Fuselage

II. Fuselage Prior to application of the fuselage fabric 2 coats of fabric adhesive (UA 55 Rev. 1 thinned 2 parts RA 4000 Rev. 3 adhesive reducer to 1 part UA 55 Rev. 1) must be applied to the longerons or other structural members to which the fabric is to be attached. Where possible the fabric must be wrapped around a tubing and attached with adhesive. The fabric must be installed on the sides first, allowed to dry and slightly tautened at 250 degrees Fahrenheit to remove any wrinkles.

The remaining fabric must then be installed with fabric adhesive overlapping the longerons or structural member to which it is attached and overlapping the slightly tautened fabric with a minimum 2 inch fabric to fabric overlap on an adhesive foundation of two thinned coats. After final fabric tautening surface tapes of at least 2 inches width will then be installed over the seams. Spring clips must be used to secure the fabric as is applied and until the adhesive is dried. If interior fabric is required it must be applied first. Limitations: Do not apply adhesives below 40°F. Allow adhesive joints 24 hours cure for full strength