One Interesting observation...
(Clip)
The only thing I can take out of this was : How obvious the shapes were in the sky - with the exhaust plume being defined in the blue sky of Dougs Model.
Electric disadvantage ? Or are the judges abstract from this ?
I think one thing that needs to be stressed in judges' training sessions or judging clinics is to advise to NOT pay appention to the exhaust plume that sometimes can be easily defined. The reasons that exhaust plume should not be used are:
1. If there is any breeze (as in wind), as soon as the exhaust leaves the engine, the shape of the plume starts to be distorted. Depending on perspective and wind direction, this distortion can vary from flight to flight, giving inconsistent readings as to the true shape.
2. Depending on location of the judge relative to the maneuver, the plume can give a distorted view of the path taken by the model, different from what the judge "normally" is to watch while tracking the path through a maneuver. In other words, a judge is ususally tracking the path as the model goes through a maneuver. If all of a sudden there is a plume there with a comparitively static presentation of the path flown, (given paralax problems and wind drift), the presentation of that maneuver is judged by a different standard than other maneuvers when there is not such a clear plume to observe.
3. Different models and different conditions will give different plumes to observe, from none at all to those that are very clear. This will lead to the need to used varying standards between models and conditions and flights,then leading to inconsistent scoring.
Hope this makes sense.
I will agree that they are fun to watch. Even when I am flying I have sometimes stopped watching the model and admired the plume. That is not a good idea and is not recommended.
Keith