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[IMGCAP(1)]The big aviation tradeshows have much in common with their automotive counterparts. Which is to say manufacturers often launch trial balloons-concept cars in the auto biz-that sink like stones.

When UPSAT/Apollo (then IIMorrow) unveiled its MX20 big screen multi-function display a couple of years ago, it had a concept-car whiff to it. Nice, we thought, but will it ever happen?

Indeed it has and despite blistering competition from Garmin and other manufacturers, UPSAT/Apollo has persevered and produced what we think is the best all-around choice thus far in a multi-function display market that hardly lacks for choice.

That said, were not ready to anoint the MX20 with t…

[IMGCAP(1)]Remember the great radon gas scare of the 1980s? No one had ever heard of the stuff and seemingly, overnight, you could buy a radon gas testing kit at the corner 7-11, along with a six-pack and a gallon of milk. Just as quickly, the panic over radon faded.

Worries about carbon monoxide (CO) have followed a similar path. Not to suggest that the household CO threat should be understated. Carbon monoxide poisoning is said to be the leading cause of accidental poisoning in the U.S., with some 1500 deaths annually. Its deadly serious.

The inevitable aviation connection is that aircraft heaters rely on scavenged exhaust heat and thus CO can get into the cockpit. As noted in the…

[IMGCAP(1)]Since the invention of the wing leveler, most of the roll control done by general aviation autopilots was either wings level for heading hold or heading command. We didnt use the VOR or NAV modes very much.

The reason is simple. They didnt work very well. VOR signals arent straight but scallop and snake slightly through the ether. Even the best VOR receivers werent all that accurate, although the newer digital models may be. The result was that when needle tracking, the airplane would occasionally dip a wing if not roll into an impressive automatic Dutch roll. After we discovered with loran, if the avionics shop connected the CDI to the box, most pilots still didnt use na…

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Although long since outclassed by generations of faster, sleeker airplanes, nothing quite symbolizes general aviation like a yellow Piper Cub.

To this day, the general public often thinks of all small airplanes as Piper Cubs, despite the fact that these airplanes are, in reality, a relative rarity at many big city airports. And if they are there, theyre likely hangared and kept pristine by owners who consider their J-3 a flying pride and joy.

The venerable Cub was the first airplane to bring general aviation to the masses and it continues to enjoy somewhat of a revival, as new pilots brought up on the mundane handling of nosewheel trainers discover the pure fun of stick…

[IMGCAP(1)]A scene from real-life at Oshkosh: Midday on a breezy Wednesday afternoon, the cavernous Raytheon/Beechcraft tent is deserted, with not so much as a straw hat or logod golf shirt in sight. No tire kickers, either.

From the looks of it, everyone is gawking at the mock-up of the new Eclipse personal jet, in a pavilion hard by Raytheons lot. A cynical journalist cant resist drawing this to the attention of a Raytheon PR person. Youll have to excuse us, says the flack, Were out building and delivering airplanes.

And so the line is drawn between the Jurassic has beens of the piston era and the would-be Walter Beeches of the new millennium, who propose to make 300-knot…