Without going into too much detail, we can consider the efficiency of a model and its use of rubber as the "power factor" of the model, or CL^1.5 /CD. I computed this efficiency factor for four record flights:
- EZB
- 1.4g F1D
- Brown HLS
- Kagan HLS
The results are attached. (Please let me know if the attachment doesn't come through.)
The formula for this efficiency is as follows:
Time / W_rubber * SQRT( W_total / S_total ) * W_total
Time = flight time in minutes
W_rubber = weight of rubber in g
W_total = weight of rubber + weight of model in g
S_total = total wing AND stab area
- application/x-ygp-stripped attachment: stored
Received on Fri Feb 19 2016 - 17:47:43 CET