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I found the reader question and your response about squawking standby in the May issue interesting because Mode S transponders and especially ADS-B Out configurations have SBY/ALT positions when a GPS position is received rather than ON/ALT without a GPS position. At least that is how my Avidyne IFD540/AXP340 system works. The transponder powers up in SBY mode and automatically switches to ALT mode during the takeoff run. Perhaps Im wrong, but my understanding is that the SBY position has a different transmission profile for Mode S than the ALT mode and that is reflected in what ATC sees.

Certainly following the airways and the MEAs, and then descending over an initial approach fix or hold would be best. I was just thinking of a case when we werent on an airway, like between Keflavik, Iceland (BIKF) and Narsarsuaq, Greenland (BGBW). We wanted to make sure we were above the OROCA and MSAs for that area when we were descending. I guess we could have stayed at our filed FL170 until over the hold, but given that the airport is at sea level we wanted to start a prudently safe descent beforehand.

In aircraft terms it is somewhat analogous to the F mechanism on most aircraft. The Flap is generally used on descent, provides drag to reduce speed and per Bernoulli and/or Newton or some other dead scientist, converts energy into additional lift. The B on the Prius (and other hybrids) shifter is generally used on long descents to produce additional drag via the engine/generator, which in turn converts energy into additional electrical charge to store in the battery.

Reading your explanation of the TERPZ FIVE DEPARTURE at BWI, which was in response to a question regarding altitude restrictions and expectations, I am not convinced that the procedure as published is clear.

Reader feedback and questions from past issues of IFR. We read em all and try to answer most e-mail, but it can take a month or more. Please be sure to include your full name and location. Contact us at [email protected].

The author did a good job summarizing the report but should have inserted the report language about the entry to the stall and left out the speculation about the crews actions. It is clear from the video and the report that they were only passengers from the time the cargo broke loose with no ability to control the aircraft trajectory or flight path.

Cirrus Aircraft officials had been hoping to deliver the first SF50 Vision jet by the end of last year, but the company said in January that schedule has stretched to sometime in the first half of this year. Mooney International Corp.s M10T proof-of-concept model completed its first flight, in December, from Chino Airport in California. The M10T, unveiled in 2014 at the Zhuhai Airshow in China, is aimed at Chinas flight training market, and will be manufactured there. The FAA launched its drone registry in late December, and within the first three weeks, about 180,000 drone users had registered. In the NTSBs annual list of most-wanted safety improvements for aviation, loss-of-control accidents repeated from last years choice for general aviation. Anticipating that Congress will consider changing how the FAA is funded in this years spring session, 15 general-aviation advocacy groups signed a letter in December asking the U.S. House to hear their real and long-standing concerns about the expected proposals.

Basic altimetry is well covered in various texts, but some aspects can be confusing. Theres not enough material for a full article, but here are a few basics. To my knowledge, the only reason that a speed restriction would be used on an ODP is to reduce the turn radius. Since this procedure has a defined route, thats probably whats happening here. Regardless of their ability to actually see the airport, they were flying under IFR in weather below VMC.

For years Ive been suggesting to NACO to stop using nonsense five-letter identifiers that were impossible to pronounce and usually led to confusion in actual IMC, and replace them with numerical identifiers. I read Decembers Need a Sim Instructor? with great interest because I have a FlyThisSim TouchTrainer BATD with a current LOA. BWI was recently clearing departures to fly the TERPZ FIVE from Runway 15R. The plan view of the procedure has the notation in the top-right corner of the first page: Top Altitude 4000.

IFR reader feedback from January's issue. Covers ICAO flight plans, Class D airspace handoffs, TSO requirements, and runway approach authorization.

IFR reader feedback from November's issue. Covers instrument currency, TEC routes, and aircraft landing.

Ive spent many hours in a hotel listening to the briefer from 1-800-VFR-not-recommended drone on about places I couldnt visualize while simultaneously trying to grasp the big picture. There has to be a better way, and the answer is simply not to get rid of the FA.