28-01-2013, 05:48 PM
Been away with fishing club. Back to the build.
Horizontal Stabiliser wasnt as sloppy as I thought it would be after cutting covering film off mating surfaces. 30 min apoxy now has them held firmly & parallel to wing spar in both horizontal planes.
Decided to stick with the CA hinges for control surfaces. Gave them a bit more adherence by drilling 2mm holes in hinge slits on stab & elevators so that holes line up with rectangular cutouts on CA hinges. CA will be drawn into holes by capiliary action & seep sideways into hinges & balsa & give greater holding power. (as per Eratix instructions)
Elevators are in 2 separate pieces with U shaped 2.5mm piano wire epoxied into holes in evevators. (It is easier to insert wire elevator joiner before positioning the Horison Stabiliser) I used clothes pegs & paddlepop sticks to keep each elevator aligned with the Horisontal Stab while waiting for Epoxy to cure. After this cure time ensured gaps were even & dropped thin CA onto the hinges. Do not use kicker as this will prevent hinges & balsa from absorbing the CA.
Control horn epoxied into slot. Hole for servo cut out of plywood but not out of cover film located about 10mm forward & central to Stab and is parksize servo cutout unlike standard size aileron & rudder servo cutouts.
Instructions for rudder instalation reasonable clear in instruction book with exception of wire Pull/Pull wire. Have used blunt side cutters to crimp wire crimp tubes. Unsure if I should also solder or epoxy for extra safety. Also not sure of tension.
Horizontal Stabiliser wasnt as sloppy as I thought it would be after cutting covering film off mating surfaces. 30 min apoxy now has them held firmly & parallel to wing spar in both horizontal planes.
Decided to stick with the CA hinges for control surfaces. Gave them a bit more adherence by drilling 2mm holes in hinge slits on stab & elevators so that holes line up with rectangular cutouts on CA hinges. CA will be drawn into holes by capiliary action & seep sideways into hinges & balsa & give greater holding power. (as per Eratix instructions)
Elevators are in 2 separate pieces with U shaped 2.5mm piano wire epoxied into holes in evevators. (It is easier to insert wire elevator joiner before positioning the Horison Stabiliser) I used clothes pegs & paddlepop sticks to keep each elevator aligned with the Horisontal Stab while waiting for Epoxy to cure. After this cure time ensured gaps were even & dropped thin CA onto the hinges. Do not use kicker as this will prevent hinges & balsa from absorbing the CA.
Control horn epoxied into slot. Hole for servo cut out of plywood but not out of cover film located about 10mm forward & central to Stab and is parksize servo cutout unlike standard size aileron & rudder servo cutouts.
Instructions for rudder instalation reasonable clear in instruction book with exception of wire Pull/Pull wire. Have used blunt side cutters to crimp wire crimp tubes. Unsure if I should also solder or epoxy for extra safety. Also not sure of tension.