5G and Aviation Safety

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Mayor Pete is clueless about the complexities and administration of our airspace system. This is the Secretary's job to coordinate issues between competing interests. The FAA's own radio spectrum advisory group flagged this problem 2 years ago. The RF spectrum selectivity bleed over problem is real. This has to get fixed or there can be no safe CAT III, zero visibility landings in urban areas. One accident would wipe any potential gain of cell phone users downloading movies faster. 50 feet of error is unacceptable if you are sitting in a passenger seat. Upgraded radar altimeters are the answer to spectrum sharing. They could have been phased in, with cost sharing and subsidy from the telecom companies who stand to benefit from the spectrum windfall. The FAA's own instrument landing procedures that require radar altimeters are proof of their absolute need. Radar altimeters are mandated for air ambulance helicopter use. How can they meaningfully restrict air ambulance helicopter operation? Bureaucracy fails us again.
 
Mayor Pete is clueless about the complexities and administration of our airspace system. This is the Secretary's job to coordinate issues between competing interests. The FAA's own radio spectrum advisory group flagged this problem 2 years ago. The RF spectrum selectivity bleed over problem is real. This has to get fixed or there can be no safe CAT III, zero visibility landings in urban areas. One accident would wipe any potential gain of cell phone users downloading movies faster. 50 feet of error is unacceptable if you are sitting in a passenger seat. Upgraded radar altimeters are the answer to spectrum sharing. They could have been phased in, with cost sharing and subsidy from the telecom companies who stand to benefit from the spectrum windfall. The FAA's own instrument landing procedures that require radar altimeters are proof of their absolute need. Radar altimeters are mandated for air ambulance helicopter use. How can they meaningfully restrict air ambulance helicopter operation? Bureaucracy fails us again.

As somebody who has done a lot in the RF field, it's not just Mayor Pete who will be struggling. I've watched many an otherwise educated eye glaze over as I try to explain that spectrum bleed is a thing and that filters do not have "brick wall" responses and infinite stop bands. If I could bottle the nitty-gritty detail (cleaned up for the mods ;)) of many aspects of RF, I would clean up on the sleep-aids market.:p

At one point the FAA wanted to ban the use of certain 5G bands near airports. The cell industry went ballistic because airports are one of the places that need the extra bandwidth the most, in their eyes, because of all the people there. No problem, we can reduce the number of people by ploughing a large airliner into an airport building because it's landing system got hosed by 5G.:rolleyes:
 
FAA rule making policies have unfortunately devolved to following the money and have little to do with safety. The 737 Max, debacle, the 5G issue, the counterproductive 1500 hour rule, counterproductive changes in training in limited and experimental category aircraft are all examples of decisions where money or political influence took precedence over common sense.

As another currently happening rule making screw up, the FAA formed an Advisory and Rulemaking Committee regarding drone use and beyond visual line of sight operations for drones. The ARC had representatives from Amazon, Google, Duke Energy, Excel Energy, etc.

Not surprisingly, given their biases to package delivery and power line inspection, they want to give un manned aerial vehicles equal status to manned aircraft below 400'. They are relying on imperfect ADS-B technology for separation based on detection of aircraft descending from higher altitudes, and an assumption that other than around airports aircraft do not operate below 500'.

Worse, they want to give them the right of way within 100' of a tower, power line or other "critical structure" for all operations including beyond visual range operations.

There are roughly 4000 ag pilots in the US who treat over 127,000,000 acres of crop land in the US every year. We operate down in the power line and tower environment for a significant percentage of each and every flight. Yet not on ag pilot or industry rep was invited to sit on the committee.

I am already pretty heavily tasked seeing and avoiding trees, wires and towers as well as hawks, buzzards and smaller birds without having to worry about a drone being operated without a spotter who would also have the right away and no intention to even look for a potential collision risk.

With a bird, the bird is both moving at a fairly fast speed and thus easier to spot in my peripheral vision, and it has a sense of self preservation that makes it just as interested in avoiding me as I am in avoiding it. Their behavior is also fairly predictable.

In contrast a stationary or near stationary drone is harder to see, and absent a spotter, they won't see you, other than as a possible ADS-B target that can often have a lag in the system and show you a mile or more from where you currently are.

In its report the FAA also misquoted and mis understood its own regulations about minimum legal altitudes over non congested areas. The law requires maintaining at least 500' separation from any person or structure on the ground. That's 500' separation vertical or horizontal, not a 500' minimum altitude. Light sport aircraft, ultralight aircraft often operate below 500'. Pilots of standard category aircraft engaged in training and performing FAA required commercial maneuvers such as eights on pylons where the pivotal altitude used in the turns is often well below 500' and below 400' also clearly operate below 500'.
 
Considering the drone issue, maybe they should be required to have transponders installed and functioning so pilots could see and hear of an intruder with their TCAS. Well, I don't see that happening, ever, but that is another issue. As for the 5G/radar altimeter problem it might take that airliner hitting the terminal or a Med-flight helicopter hitting the hospital two stories below the helipad before the powers that be wale up.

I've always said that check lists are written in blood, and so are the FARs

Yes, it seems the DOT/FAA has lost sight of their critical mission.
 
Considering the drone issue, maybe they should be required to have transponders installed and functioning so pilots could see and hear of an intruder with their TCAS. Well, I don't see that happening, ever, but that is another issue. As for the 5G/radar altimeter problem it might take that airliner hitting the terminal or a Med-flight helicopter hitting the hospital two stories below the helipad before the powers that be wale up.

I've always said that check lists are written in blood, and so are the FARs

Yes, it seems the DOT/FAA has lost sight of their critical mission.

It's a mixed bag.

On the one hand geo-fencing has been around for years and yet it's easily bypassed. That would explain why I came within about 50 ft of hitting a drone on base leg for landing at KOCW.

Responsible people follow the rules. Irresponsible people do not.

Now, the FAA wants to require Remote ID, the drone equivalent of ADS-B out (the successor/General Aviation counterpart to TCAS) on all drones weighing more than .55 pounds/8.8 ounces/250 grams, not just drones operated commercially under part 107.

Remote ID requires broadcasting the owner/operations unique identity information (a serial number registered to the user) as well as the location of the drone and controller as well as velocity and altitude of the drone, as well as a time mark.

This requirement can be met either by being built into the drone, or with an add on module.

Drones weighing more than 250 grams not carrying a Remote ID must operate within the confines of FAA Recognized Identification Areas (FRIAS) sponsored by community based organizations and approved by the FAA.

However, at the moment I am aware of only one FAA certified RID module. It costs $300 and under the FAA rules it cannot be moved between drones.

When an R/C aircraft can be built for around $150, it's a burden to require a $300 module that cannot be moved between models, even when they are all owned by the same owner.

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In other words, I've been a fan of radio controlled gliders and sailplanes for over 40 years. Under the new rules they are classified as "drones" and while they are built light by necessity they all weigh more than 8.8 oz/250 grams.

For example the Gentle Lady is a long standing 2 meter wing span balsa and mylar sailplane design that is as basic as it gets. Its been the sailplane trainer of choice for decades. It's normally operated with a 2 channel radio with micro servos, Micro receiver and a 350 mah lithium ion battery that is a lot lighter than the Nicads we used to use. They weigh about 25 ounces/700 grams.

It would cost me $300 for an RID module for a very visible, slow moving R/C glider that requires a reasonable amount of skill to fly. It would cost me around $2100 to equip all of them with RID modules.

That's more or less the same problem as ADS-B out for full sized aircraft. The cheapest option out there ends up being close to $2500 to install and it's not getting any less expensive.

There is now at least one smaller (48") 250 gram sailplane kit on the market, but it's less capable, has less tolerance of wind, is less capable and harder to see.

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The larger problem of course is that there are already millions of drones out there. An irresponsible owner will not register them, nor will those irresponsible owner comply with the RID requirement and that actually increases the safety risk when the system assumes a high level of compliance.


In short, it's the same flawed logic that the anti gun crowd like to use.
 
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