How do I build my Warbird wing with some dihedral?
For a small amount of dihedral, lay the wing halves upside down when installing the wing spars. Weight the wing in the centre, fore & aft of the spar line, and prop up the wing tips by 5/16″, prior to installing the fibre tape strip on the top of the wing. Then continue to tape up the wing as usual. This is not enough dihedral to affect the aerobatic abilities of the War birds, but it just looks better to the eye. For more dihedral, take the aluminium tubes, put the f/glass rods in after marking the centres, then put them in a vice and give the tubes (not the rods) two belts with a two pound hammer. This ought to bend them just enough to give 25mm dihedral at the tips without distorting the tubes. Reverse the f/glass rods (in case there were any shock fractures at the ends) and glue them in place. Then set the spars in place in the wing, one half at a time, on a dead flat surface. Glue the wing halves together with supplied clear bond glue or Goop. Make sure the wing spars are not show
