Biplanes require careful setting up to get everything in the right place,in the past we have had to resort to home made jigs or even just pieces of wood etc to get the angles correct,now John Adams of Aeroclub has come up with this ingenious little jig that will certainly solve a few problems for biplane lovers,it looks neat and certainly ingenious,apparently the use of thumb nuts has been avoided due to them getting in the way during adjustments.
