Models
must have been designed & published or kitted by the end of Dec 1955.
Designs
may be scaled up or down, with appropriate changes to material sizes.
Ribspacing may be changed, but aerofoil section to remain as the original.
Covering
material. Modern adhesive or other Film type material, including Solartex,
will not be allowed. Litespan or Airspan is acceptable, along with tissue,
silk, nylon etc.Tissue over Mylar is acceptable also.
Maximum
motor size .20 cu in (3.2 cc). Schnuerle ported glo motors not allowed, orhigh
performance, ball bearing diesels of 2.5 c or more. Please use your
discretion on this matter, to make it easy for the C.D. Electric motors not
permitted.
Max
motor run 30 sec. This may be controlled either by radio or a clockwork
timer, or even a limited amount of fuel. Only one "no flight"
allowed per round, either as a result of an over-run, or a flight less than
30 sec.
Weather
conditions permitting, there will be 3 rounds, each with a maximum depending
on conditions, but probably around 4 mins. Aggregate score lo count. It
necessary a final fly-off round will be held.