I use my belly board like flaps. I am going to add the electric motor control from Van's this winter for activation. I apply the first setting currently 25 degrees just after turning base, or just before if I want to make a shorter approach. My theory, and what I have always taught is that you should always fly a pattern that will get you to the runway with loss of engine. Base to final or established on final I apply the last notch of 50 degrees. Once I acquire the new motor I will add a final short final setting of about 80 to 90 degrees relative to the bottom fuselage. I have no holes in mine and it works great. It is attached to the rear spar.
So to answer the question: Yes I use mine like flaps of the trainers, a notch or setting on each leg of the pattern. This allows for a pretty tight pattern, flown at a reasonable speed, with lots of control. This was done in the past: 650# empty weight, 1200 max. (max weight flown to 1050#) VW 1915cc 52x42 Otto prop KR2 plans built, no mods by original builder except balanced ailerons and elevators, and balancing tab on rudder top Diehl wing skins approach rpm 1400 to 1500 dw 100 mph; base 95 to 90 mph; final 85 to 80; over the fence at 75 mph; numbers at 65 mph Colin Rainey brokerpi...@bellsouth.net
