ORIGINAL: Sport_Pilot
National parks and forest are a type of restricted area, not restricted airspace. Perhaps I should not have said restricted area but I meant any airspace that has restrictions. She did not say if the park was a federal park or not. And yes flying a helicopter at full speed 75 feet over the ground is considered unsafe, this unofficial incident is proof of that. Flying a helicopter at that height at a low speed which of course they are capable of is not.
I agree, but the term used in the AC and AMA rules is to give right of way. That to me does not mean that you yield unless it is obvious that you are going to cross flight paths. I do not think any model airplane pilot can be clear of that with our ground perspective, unless on opposite sides of the field, or if the full scale aircraft is well clear above the model airfield.
Some parks have restrictions but only if they are so marked on the Sectional Charts. I doubt this is one of those areas or there wouldn't be model airplane activity.
Again, you are clueless as to the the operation of helicopters. Where do you get your information? And I quote you, "Yes flying a helicopter at full speed 75 ft over the ground is considered unsafe." This is WRONG, WRONG, WRONG. So is your further statement that flying low and slow IS safe. It is just the opposite Pal.
There is this little chart in the Flight Manual for each helicopter. It is this manual that goes through much review before the aircraft is certified by the FAA. The chart is called the Height/Velocity curve. Or in real pilot lingo, the "Dead mans Curve." Without going into extreme detail, at 100ft the Astar that I fly you must be at 50 kts or greater to be OUT of the curve. Any speed above that is out of the curve any speed below that is IN the curve and would be unsafe as determined by the manufacturer based on certification testing. Interpolating the numbers, at 75 ft, the slowest I could go and be out of the curve would be 48kts. So, "full speed" is determined to be safe. The Bell H/V curve is very similar.
So, Sport Pilot, I suggest you get some knowledge and facts before you start spouting off as to what is safe and unsafe. Especially, in aircraft that you have no apparent qualifications in. Do you have a pilots license? If so, what? Experience?
This is my last post on this subject. Gotta go, someone just had a bad day and I've got to fly to the scene!!!