ORIGINAL: Easystern
hi all,
in europe the RB has a new stronger stab and is available now at the dealers.
the carbon spares are stronger and i has bigger and dounble wood where the hinges are.
the dealers offer also a free upgrade for existing kits, somebody had writen something to TT that they react now.
i found this info in a german modell mag. FMT 01.06
michael
Here's an internal oblique view of the insdie of one of my TT Rare Bear's Horz Stabs. You'll notice that the slot cut for the bearings that support the elevator torque rod and the inner CA Hinge has significantly weakened the strength of the TE and the Stab overall. Also note how the 1st inner rib has been cut through to the hole which the tube spar passes. I am 100% certain this cut in the trailing edge material and into the rib is the root cause of the Horizontal Stab failures.
This picture shows the doublers I fabricated from 3-ply birch ply which are epoxied to the Trailing Edge and Rib where they had been split. The hard balsa block added for the Robart hinge points can also be seen.
During final assembly of the horiz. stab to the fuselage The fiberglas spars where cemented into the fuselage and then the stabs where cemented to the spars using 2 hour epoxy/ BVM Mill Fiber mixture. Once I was sayified with the glue joints, I then closed the lower stab skin and refinished the lower side of the stabs.
Rich