Beyond Visual Line Of Sight (BVLOS) when flying drones is currently a BIG no no . . and almost every jurisdiction is making rules about how it can be done commercially with restrictions, limitations, regulations, certifications, and qualifications. All this seems necessary, since irresponsible flyers can endanger hundreds of human lives with a single mid-air collision with an airliner that brings it down. Yes that's a horrific and sobering vision . . like that time you saw an airliner flown into a building intentionally! . . .even so the reaction is very visceral as you step aboard your next flight to Miami, (sorry it's Canadian Snowbird season. Everyone seems to be headed south this time of year) it is important to put that risk into perspective, based on a full and rational analysis of all likely or unlikely threat and safety factors. Here are some issues to consider. They are working on practices and guidelines for established Small drone operators who wish to extend their operations from VLOS to BVLOS. From this I assume there must also be a new set of Best Practices for Very Small operators. Does this mean that very small "Compliant Operators" will be able to fly "non-compliant" aircraft for commercial work or can Compliance be modified to allow lower priced but fully capable systems to qualify for some reasonable BVLOS activities . . when they are in the hands of a competent pilot. Maybe the proof of capability should rest with the Operator themselves and Transport Canada could qualify operators to allow them to judge the safety of their very small machines. At some point, the buck stops with the pilot anyway, doesn't it? Very Small RPAS is not a full fledged aircraft like a Cessna or even an Ultralight requiring strict standards so they don;t threaten human life. I think you can best regulate this end of the industry by regulating the pilots/operators to a reasonable standard. . . and it does not have to onerous . . . mostly common sense rules that can be assessed on a written test like a drivers license but with demonstrated knowledge of airspace and ATC rules. Definition BVLOS What is the difference with BVLOS anyway for VERY SMALL machines? BVLOS applied to VERY SMALL RPAS should be defined as "BVLOS of potential hazards" not BVLOS of the MICRO RPAS itself. They are just too small. You can see other aircraft or particularly large buildings of natural features. If you can see them but still know where your machine is, then you should be considered VLOS since the criteria of VLOS/BVLOS primarily exists to define risk of collision, damage or loss of life and a VERY SMALL RPAS is no more lethal than a baseball . . . so the PIC of a MICRO RPAS is able to see and avoid any other potential aircraft or hazards in his line of sight. Definition IFR ( Instrument Flight Rules) Instrument flight rules are designed to maintain aircraft separation while flying in cloud. This is different than IFR weather conditions. Simply speaking, VFR (Visual Flight Rules ) means you can fly if there is more cloud than sky with the lowest cloud being 1000ft and you can see 3 miles horizontally. Any weather less than that is considered IFR. . well except for SPECIAL VFR which is a special case. So in order to allow aircraft to fly IFR ie less than "1000 and 3" any aircraft must have certain equipment that are regulated to assure the aircraft can be flown safely in those conditions.. This is different than the rules for actually flying in IFR conditions which involve flight procedures and clearances and altitude restrictions. However, when you're flying a drone you can barely see 800ft away requiring 15,840ft visibility (3 miles) makes no sense. If you can see a conflicting airliner 1 mile away then there is not going to be a conflict if you have the drone under positive control. Besides the airliner or any civilian aircraft should not be flying at 500ft anywhere except near an airport, so there is practically zero chance of a collision or even a near miss anyway. So, IFR for VERY SMALL drones should mean you can fly if the weather is not below 1/4 mile visibility and 500ft lowest clouds (ceiling). Remember, 300ft AGL is a reasonable maximum altitude for civil aviation separation in rural areas that are supposed to stay above 500ft. Both Canada and US FAA require planes to stay "1000ft above any obstacle within 2000ft of the aircraft", over built up areas so realistically, 500ft AGL maximum over built up areas should be perfectly safe for Very Small RPAS. I also think, reasonably, you should not be flying if there are icing conditions either during or forecast for your area within 1 hr of your planned mission but that's a different area for discussion. Knowledge of Aircraft Systems Current CARs says your knowledge should include altimeter, airspeed indicators and the like. That's for Airplanes. VERY SMALL RPAS knowledge demonstration should not be about aircraft systems but be around the RPAS display instrumentation, map displays, navigation and flight modes interface and methods of using and switching flight modes . . . and WEATHER. Flight Instructor Qualifications Recommendations currently call for only 6 hrs of flight time over 2 years (in the past 24 months) to remain qualified as a drone instructor. My experience with operational instructional flying in RCAF tells me that's pretty limited to be teaching others. 2 hrs or Dual instruction. 2 hrs of Dual acting as an instructor and 3hrs of solo and your an instructor? Maybe I'm reading that wrong but that's a bit light for Small Class drones. . . but realistically, for VERY SMALL drones it may be enough for qualification to fly but it's not enough to teach or qualify others at any size. Aircraft Equipment Recommendations - Requirements? There is a range of required equipment recommended for BVLOS flight. Most of it is valid like ability to display magnetic direction, position or speed. . . but a lot of seems to be a hangover from manned systems. . . Like "Means of making a standard rate 1 turn". That's called a "turn and slip indicator and a stop watch". . . . and mostly for fixed wing aircraft that can't hover in place. I can think of no circumstance flying a drone when a standard Rate 1 turn would achieve any useful purpose for the Pilot or an air traffic controller. Requirement for "an adequate set of fuses" " accessible to the PIC ( Pilot In Command) for all on-board equipment is also a carry over from flying piloted aircraft. First there are virtually no accessible electronics in either the controller or the drone and replacing one during a flight is equally impossible so I would strike that requirement entirely for VERY SMALL class systems. Then there is the recommendation it should carry ADS-B. . . an aircraft based GPS reporting radio signal that reports your aircraft position to ATC and provides flight path de-confliction data for other aircraft in the area. As far as I can see there is no value to ATC for MICRO RPAS to possess ADS-B Out navigation or course correction for RPAS flying below 300ft AGL. Or a typical aviation Transponder. (see comments on real-time position reporting - Alternate World). Doing so would also clog the system unnecessarily. Alternate World Flight Management |
AuthorEx RCAF Flight Cmdr, Combat Flying Instructor and Flight Safety Officer, 25+yrs flying experience, Military and corporate flying in Canada US and NATO. Drone builder and pilot since 2014. Archives
November 2016
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