What is realism in terms of the flight of a radio controlled minature aircraft? This is a very constroversial question at any contest that we attend. There are a number of aspects of flight that should be considered, and I would like to offer one which probably is seldom considered at all. The factor that I wish to show you is "G" loading in just two flight parameters.
Knowing the approximate airspeed capability of the particular aircraft we are observing we can quite accurately judge the number of "G" the aircraft is sustaining. The figures presented here have nothing to do with relative size of the model versus full scale. The loading figures are solely based on the speed in Miles Per Hour and the radius of turn or pullout. When one considers that in full scale practice, the average individual will start to red out at approximately four "G", then we should operate our miniatures at some figure below four for realistic flight. The exception would be if we were modeling recent jet aircraft (fighters) where the pilot would be wearing a "G" suit, permitting somewhat greater forces on the body.
The other consideration is the "G" capability of the aircraft. It does not take very much research to determine that the red line "G" limits on most aircraft is relatively low. The fact that our models arecapable of sustaining higher "G" loads is the only thing that has prevented wreckage all over the landscape. How many models have crashed because of excess loading. Here then are some figures to consider:
MPH 50' 100' 150' 200' 250' 300' 30 1.56 1.17 1.08 1.04 1.03 1.02 40 2.36 1.46 1.23 1.13 1.09 1.06 50 3.64 2.02 1.54 1.33 1.22 1.16 60 4.92 2.61 1.89 1.56 1.39 1.28 70 6.63 3.43 2.40 1.92 1.65 1.48 80 8.62 4.39 3.02 2.36 1.98 1.74 90 10.88 5.51 3.75 2.89 2.39 2.06 100 13.41 6.76 4.57 3.49 2.86 2.44
MPH 25' 50' 100' 150' 200' 250' 300' 30 3.41 2.20 1.60 1.40 1.30 1.24 1.20 40 5.28 3.14 2.07 1.71 1.54 1.43 1.36 50 7.69 4.35 2.67 2.12 1.84 1.67 1.56 60 10.63 5.82 3.41 2.61 2.20 1.96 1.80 70 14.11 7.56 4.28 3.19 2.64 2.31 2.09 80 18.13 9.56 5.28 3.85 3.14 2.71 2.43 90 22.68 11.84 6.42 4.61 3.71 3.17 2.81 100 27.76 14.38 7.69 5.46 4.35 3.68 3.23