Matching the Airplane with Your Mission

Checking The Stall Warning Horn

ByHank Gibson April 27, 2019April 30, 2019

When a pilot first glances at the title of this article, the first thought that probably goes through that pilot’s head is, well that’s easy.

And it is, if you are flying a high wing Cessna. On other airplanes, there are a few tricks to checking the stall warning horn. If you get them wrong, you’re liable to get a bill from your maintenance shop for an hour of labor for a problem they couldn’t duplicate.

Cirrus SR22

Let’s start with the Cirrus. On the pre-FIKI Cirrus aircraft, there was a small little hole in the wing that contained a diaphragm. That diaphragm sensed a change in airflow at a certain angle of attack just below the critical angle of attack and set off the stall warning horn. Unfortunately, the only way to check that is to suck on the hole during pre-flight.

I don’t. I verify the hole is clear and that’s about it.

On the FIKI Cirrus aircraft, there is actually a stall warning vane. It looks like a high wing Cessna vane, but if you turn the batteries on and try and get it to come on during your light and pitot heat check, nada.

Here’s the trick, and the checklist doesn’t do a good job of describing this.

• Turn on the Avionics Master
• Turn on the speaker
• Put the flaps to full
• Then move the stall warning vane and you’ll hear the horn

The speaker and the Avionics Master are so you can actually hear the horn (if you had the headset on while you were doing this, the speaker would be unnecessary). The flaps have to be full because the pitch attitude for the critical angle of attack is lower with the flaps down, so the horn goes off when at a different angle. You then don’t have to use as much force to push the vane.

Piper PA46

The early -310P Malibus are pretty simple and straight forward. Move the vane, get the horn.

In the -350P, you can’t get the horn to come on by moving the vane. So, Piper put a stall test button that’s hidden underneath the upper left side of the instrument panel. Push that to test the horn. On the G1000 PA46, it is located directly above the PFD. On the Avidyne, it’s below and to the left of the pilot’s yoke.

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Testing the stall warning horn is a very important part of pre-flight. A pilot needs to know if the aircraft is close to a stall. The advent of Angle of Attack indicators in small, GA aircraft, have added a greater awareness to the angle of attack during all phases of flight to avoid those stall spins.

If the stall warning horn goes off or the AOA shows yellow, lower that nose immediately.

The Piper Saratoga Turbo

ByHank Gibson June 20, 2014June 20, 2014

Recently, I assisted with the delivery of a 2007 Piper Saratoga Turbo from San Antonio to New York City.  It was a very nicely equipped airplane, complete with a Garmin G1000 panel, an STEC 55x autopilot, and air conditioning.  The owner joined me on the flight back to get trained in the airplane, getting him comfortable in it over our 2 day excursion back to NYC.  Total flight time was 12 hours, though that did include several stops along the way and landing practice at the airports we stopped at.

The 6 seat Turbo Saratoga is a very comfortable, very capable flying machine.  It is made for hauling, with a gross weight of 3,600 pounds, but that’s not to say it isn’t lacking in comfort, either.  The rear cabin has 4 seats, 2 facing forward and 2 facing rear.  It would be a little tight for 4 full size adults in the back seat.  To avoid knee knocking, the plane is an excellent 4 person and bags aircraft (or 4 adults and 2 kids).

The really nice part about the Piper Saratoga is the baggage door.  Unlike the Bonanza, the Piper Saratoga has a baggage door that opens to the baggage compartment, creating a much easier way to load and unload baggage.  The nose baggage compartment, which holds an additional 100 pounds, is a very nice feature, allowing the bag load to be spread out.

We typically saw cruise speeds of 155-165 KTAS depending on altitude.  The highest we went was only about 9,000 feet, so we didn’t get up real high to see what the single turbo could do.  Even though the Lycoming TIO-540 engine burns about 20 gallons an hour, with 102 gallons of gas on board, the fuel consistently outlasted our desire to continue flying.

Being equipped with the G1000 was a very nice feature of this particular Piper Saratoga.  The screens are nice and big, larger than the displays on a high wing Cessna or a Corvalis.  That allows for easier viewing of approach plates, NEXRAD, and the engine gauges.

There are always downsides to an airplane, and the Saratoga is no exception.  The STEC Autopilot leaves some to be desired as I felt it hampered the capability of the G1000 when shooting approaches because the 12 knot crosswind limitation on the autopilot. You can still use the autopilot on an approach with higher than 12 knot crosswinds, but the autopilot tends to search around for the final approach course.

The air conditioning works very nicely, though it did have a tendency to freeze up at altitude.  We discovered that quickly and just decided to turn it off and leave the blower on, since it was cool enough up high anyway.

Overall, the Turbo Saratoga is a very nice airplane.  The speed leaves a little to be desired (you can get 10 KTAS more out of a Bonanza with a Continental engine, about 20 knots more if it is a Turbo Bonanza), but it is very high on comfort.  The Piper Saratoga makes for a good family airplane or as a hauler.  I liked the airplane a lot and thoroughly enjoyed my time in it.

Picking Up an IFR Clearance

ByHank Gibson October 30, 2015November 5, 2015

Picking up an IFR clearance at first can seem very simple.  But, when taking off from an untowered field, especially if a pilot is based at a towered airport, it can be a little more complex.  Based at an untowered field?  The towered procedures are a little more streamlined, but still different.

Towered Airports

Class B or Class C

At Class B or Class C airports, there is a dedicated frequency to get an IFR clearance and VFR departure instructions called Clearance Delivery.  It is published in the airport facilities directory as well as most approach plates.  Before you call Clearance Delivery, get the ATIS and tell the controller you have it as well as where you are located on the airport.

Class D

Some Class D airports have a Clearance Delivery frequency (see KADS, Addison, TX), but for the most part, you’ll get your IFR clearance on the Ground frequency.  If there is a dedicated Clearance Delivery frequency, the ATIS will specify whether or not to get your clearance on it or on ground control.

Class D towers are only part time towers, usually closing between 7pm and 10pm local time, depending on how busy the airspace is.  These airports usually have published Clearance Delivery frequencies to contact either the local approach control or center to pick up an IFR clearance on the ground.  They will be published on approach plates and in the A/FD.

Untowered Airports

Class E

There are a number of Class E airports that are Class E all the way down to the surface (see KLFK, Angelina County).  At these airports, there will either be a Clearance Delivery frequency or you call on the Center or Approach frequency to get your clearance (at KLFK, you call Center as there is no Clearance Delivery frequency.  At Temple, KTPL, there is a published Clearance Delivery frequency which you would be talking to Grey Approach).

Class G

There are two ways to pick up an IFR clearance at a Class G airport, one typically a little safer than the other.

The first option is to take off and maintain VFR while calling Center or Approach control.  They will give you your clearance making you IFR and allowing you to enter the clouds.  This option can be unsafe depending on the terrain surrounding the airport and how low the ceiling is.  If the ceiling is overcast at 1,000, you can legally remain VFR in Class G airspace at 500 AGL, but that isn’t the safest option and you might not be able to raise ATC at that altitude.

The second, and safer option, is to call on the phone.  Flight Service has a nationwide Clearance Delivery phone number that every pilot should have saved in their contacts (888-766-8267).  Typically, you want to wait to call them until after you are done with your runup because they only give you a five or ten minute window to get off the ground.  With bluetooth equipped headsets, this usually isn’t a problem.

Be prepared when calling Clearance Delivery on the phone to wait a few minutes.  Us pilots aren’t good at being patient sometimes, but the FSS has to call Center on the phone to get your clearance and release and this can take a few minutes.  Be prepared for that going in and just be patient.  Remember, this is the safer option!

There are a handful of Class G airports around the US that have a GCO, a Ground Communications Outlet. With a GCO, you tune up the frequency, then click the mic 4 times to talk to ATC or 6 times to talk to FSS.  Each mic click must be at least one second, so if you click the mic too quickly, it won’t work.

At certain airports that are underlying an approach control’s airspace, you can actually call the TRACON directly and get your clearance from them (5C1, the Boerne Stage Airport, for example.  San Antonio approach is the controlling agency and you can call them directly to pick up your clearance).  It’s a good practice to get the TRACON phone number and save that in your contacts as well.

Mooney Enters the Training Market with the Mooney M10

ByHank Gibson November 19, 2014December 5, 2014

Earlier this week, Mooney announced they would be following competitors Piper (with their Archer DX) and Redbird (with their retrofitted 172 known as the Redhawk) into the training market with the Mooney M10 T and Mooney M10 J.  Mooney, which hasn’t manufactured a primary trainer since the Mooney M10 Cadet in 1970, is planning on putting Jet A burning Continental Engines in the new aircraft.  The mockup was unveiled at Airshow China.

The Mooney M10 T is a 3 seat, fixed gear trainer sporting a Continental CD-135 engine.  At 135 HP, the initial design data claims the Mooney M10 T will be able to cruise at 140 KTAS at 75% power, allowing the Jet A engine to burn between 4-5 gallons per hour while holding 42 gallons of fuel.  As with other Jet A piston powered airplanes, the Mooney M10 T will have a Fully Automated Digital Engine Control (or FADEC) system.  This leaves just a single power lever in the cockpit, allowing the pilot to set a percent power and the FADEC computer will set the manifold pressure, prop speed, and mixture.

The Mooney M10 J has a slightly bigger engine, the 155 HP Continental CD-155.  It also is equipped with retractable gear.  Initially, Mooney is predicting 160 KTAS at 75% power for the Mooney  M10 J.  The airplane will come as a two-seater, but will have a third seat as an option.  Mooney says that the Mooney M10 J will allow pilots to make an easy transition to the bigger and faster M20J that has been popular for many years amongst “Mooniacs.”

In a new direction for Mooney, the Mooney M10 T Mooney M10 J will both be composite airplanes with side sticks, instead of the traditional sheet metal exterior with a yoke as Mooney aircraft have been in the past. Also venturing from the more powerful Mooney aircraft is the fact that the Mooney M10 T and Mooney M10 J will have two doors.  Remaining, though, is the swept tail that Mooney aircraft are known for.  Both airplanes will be equipped with Garmin G1000 panels, while the Mooney M10 J will also have the GFC 700 autopilot, marketing more toward aircraft owners rather than students.

The only downside that I read about was the time between replacements for the engines.  For the CD-135 engine in the Mooney M10 T, time between replacement is 1,500 hours, whereas the CD-155 only has a 1,200 hour replacement time.

Mooney expects certification and deliveries to begin for the Mooney M10 T and Mooney M10 J in 2017.

Information courtesy of AOPA and Mooney International.  Images courtesy of Mooney International.

Redbird Skyport Fly-In Rescheduled

ByHank Gibson May 27, 2015

The Bluebonnet Fly-In at Redbird Skyport has been rescheduled due to weather and the recent flooding in San Marcos.  The new date for the Bluebonnet Fly-In will be Saturday, June 6th from 10am-4pm.

Hank Gibson of Texas Top Aviation will still be presenting on Garmin 430/530 Approaches this Saturday at 2pm in the large conference room at Redbird.