VMAR Addendum Page

   Hinges

   All VMA kits now come with ready fitted high quality hinges.  Normally this provides high    strength hinge solution, but you should still give ALL control surfaces a good pull test to make sure that    the controls are firmly affixed.  If there is ANY give in the hinge joints then the entire control surface must    be removed and re-hinged.
   DO NOT attempt to fly any model with loose hinges!
   It is also worthwhile checking the hinge line for any build up of glue that may prevent the hinges from    giving full movement to the controls.  Any excess glue should be carefully removed and the controls    thoroughly checked for full and free movement before EVERY flight.

   Balance Point (CHIPMUNK & TEXAN ONLY)

   For initial flights, we recommend that the balance point for both these aircraft is set immediately in front    of the main spar.  This can be easily measured BEFORE assembly of the wing panels, using the leading    edge of the dihedral brace box as indicating the REARMOST CG position.  Inexperienced pilots are    advised to place the CG position 1/2" in front of the dihedral box to give an extra safety margin.

   Control Deflections (CHIPMUNK & TEXAN ONLY)

   The initial control surface movements for the rudder and ailerons appear to have been transposed in the    instructions.  We suggest that the ailerons be set equally between 3/8" and 5/16", with 1" or greater    throw on the rudder.

   Apache 2 Wing Joining System

   This kit features a two piece bolt together wing.  The instructions state that it is not necessary to glue    the wing panels together UNLESS you intend to fly high stress manoevres, i.e. acrobatics.  However,    since most Apaches will at some time be subjected to some form of acrobatics ( probably by an    instructor! ) we strongly recommend that ALL Apache 2 wings are glues together at the root and joiner    using 30 minute epoxy.  The wing attachment bolts should also be fitted as not only will they provide    additional strength, but they will help with alignment and can be used to pull the two wing panels    together while the epoxy sets.