hank970's latest activity

As an old, retired national park ranger and volunteer avocational archaeologist, I routinely use a hand-held Garmin (and sometimes a Trimble) GPS receiver to plot the locations, in UTMs, of cultural sites on national parklands. For me, using...

I think it's probably safe to assume that some folks may be curious about drones they observe but not enough to warrant their installing an app to identify the operators. A lot of them might not even be aware that such apps exist. On the other...

I'm not an attorney, but it seems to me that passage of a law to deprive owners of the use of their property would represent a regulatory taking -- something akin to the seizure of real property for the public good by exercising eminent domain...

Yeah, I'm sure that a nicked blade would create an imbalance, no doubt more pronounced and noticeable at high revolutions rather than at idle. I'd also imagine that a visual pre-flight inspection would reveal a nicked blade and potential...

I'm a relative newbie and wonder why you'd need to check for vibration if you were satisfied that vibration was not a problem in the preceding flight. What, other than a bad motor bearing or prop-damaging collision and impact, might induce a...