Selecting the Proper Altitude

One of the first questions a student pilot asks me when starting the cross country portion of his or her training is, how do I know what altitude is best for my flight?  This is a good question, because without taking certain aspects of the flight into account, it’s really just a crap shoot when selecting an altitude.  Craps and flying don’t mix, so let’s take a look at a few considerations when selecting an altitude.

Sky Coverage

Sky coverage has several subcategories when it comes to selecting an altitude.  First is how high are the bases?  Is it IFR (VFR pilots would be grounded), marginal VFR (1,000 AGL to 3,000 AGL ceiling), or good VFR (above 3,000 AGL ceiling)?  If the cloud deck is only 2,500 feet off the ground, then VFR pilots are limited to either 1,000 AGL to 2,000 AGL.  This is an excellent segue into why VFR pilots shouldn’t scud run!

Scattered Clouds

Second, what kind of cloud deck is it?  Is it an actual ceiling (broken or overcast), or is it a scattered layer?  Few or scattered layers usually allow VFR pilots to find a hole to get higher to some smoother air, making the flight more pleasant.  VFR pilots, always make sure to check the destination weather as it could be scattered where you are departing from, but it might be broken or overcast where you are arriving.

Last, how high are the tops of the clouds?  Pilots can only get this information in the planning stage from the area forecast or from pilot reports, so most of the time, it’s not very precise information.  If the tops are at 10,000 feet and the pilot is flying a 172 on a 30 mile trip, it doesn’t make much sense to get on top of the clouds.

Terrain and Obstacles

Terrain goes hand in hand with sky coverage.  If there are low clouds and high terrain, that doesn’t bode well for trying to stay VFR and not hitting anything.  Obstacles need to be taken into account too, as there are some pretty tall radio towers that can stretch up into a 1,500-2,000 AGL deck of clouds.

Winds Aloft

Winds Aloft

Once the sky coverage and terrain have been considered, it’s time to look at the winds aloft.  Tailwinds are preferred, but, sometimes, a headwind is the only option.  After taking the clouds and terrain into account, this narrows down your altitude to a handful of options.  The winds aloft will further narrow it down.

Aircraft Performance

Once you have two or three altitudes in mind, taking a look at the performance charts for your airplane will help nail down that final altitude.  Pull out the POH, compare fuel burn and cruise speed, and you’ll have your altitude selected.

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  • The Piper Saratoga Turbo

    Piper SaratogaRecently, 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.

    Piper Saratoga Inside

    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.

    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…

  • A Takeoff Briefing

    Takeoff briefings are one of those things that most pilots are taught when they first learn how to fly, but once they get into flying themselves around, quickly fall by the wayside.  There is a reason student pilots are instructed to perform a takeoff briefing before departure.  It gets them thinking about what the plan is after they get off the ground and what to do if something goes wrong.

    Takeoff Briefing

    Takeoff briefings are a good habit to get into.  Airline crews do a takeoff briefing before every departure, even though they have performed a takeoff in that particular airplane thousands of times.  It enhances safety and provides repetition, keeping that knowledge at the forefront of the crew’s minds.

    In general aviation, a takeoff briefing should cover what the takeoff procedure is, what the abort plan is, and what the plan after takeoff is.

    Takeoff Procedure

    Most pilots fly the same airplane all the time, so the familiarity with what goes into a takeoff is there.  But, habits should be formed to brief the takeoff procedure as part of the takeoff briefing.  It doesn’t need to be extensive, just covering the basics of how the airplane is getting off the ground.  Something like this:

    • Throttle setting (if turbo charged, will full throttle cause an overboost?)
    • Rotate speed
    • Expected takeoff roll

    That’s it.  Nothing fancy for the takeoff procedure.

    Abort Plan

    What is the plan if something goes wrong?  It doesn’t have to be an engine failure, maybe the engine coughs when full power is added or maybe the engine doesn’t produce peak RPM.  Maybe the takeoff roll is longer than anticipated and something doesn’t seem right.  Maybe on climb out a door pops open.  Maybe the engine fails at 1,000 feet.  It’s good to keep the plan in the foreground for what to do if an abnormal or emergency situation takes place.

    • Brief the aborted takeoff procedure
      • Pick an abort point on the runway based on the expected ground roll
      • What is the procedure if the airplane isn’t off the ground by then?
      • What is the procedure if the engine quits on the runway?
    • Brief the engine failure procedure at low altitude
      • If the engine fails over the runway, will you try to land on the runway?
      • What altitude would you elect to turn back as opposed to landing straight ahead?
      • If the plane is too low to turn back, would you land straight ahead or aim left or right?
      • What airspeed will you aim to hold if the engine fails?
    • In a Cirrus, what is your minimum parachute deployment altitude?

    After Takeoff Plan

    After the airplane is off the ground, what’s the plan then?  Are you staying in the pattern or departing the area?  Do you need to adjust your power at a certain altitude?  What altitude are you climbing to?  What heading are you going to fly?  Is your flight plan in your GPS?  This is an excellent time to set up altitude and heading bugs if your airplane is so equipped.

    Get in the habit of doing a takeoff briefing before you call the tower or announce your departure.  It get’s your mind focused on the task at hand and then what is going to be happening next.

    Takeoff briefings are one of those things that most pilots are taught when they first learn how to fly, but once they get into flying themselves around, quickly fall by the wayside.  There is a reason student pilots are instructed to perform a takeoff briefing before departure.  It gets them thinking about what the plan…

  • PIREP: IFR Clearances at Uncontrolled Airports

    There is great news coming for all IFR pilots who utilize the multitude of uncontrolled airports across the US.

    From the beginning of aviation time, the process of getting an IFR clearance at an uncontrolled airport has been arduous. For airports under Center controlled airspace, you had to dial the Clearance Delivery line, which ported you to Flight Service. Then you sat on hold till someone picked up, gave them your information, then sat on hold again while they called the Center. Finally, after what seemed like an eternity, the briefer came back with your clearance and departure instructions.

    On a busy day, this could take ten to fifteen minutes, which can be really annoying when a pilot is trying to take off and get somewhere.

    In my opinion, this also led to a lot of unsafe (and probably illegal) VFR departures when conditions were either clearly IFR or unsafe if buzzing around at low altitudes and high speeds in Class G airspace.

    RCO’s (Remote Communications Outlet, 2nd column, halfway down) and Clearance Delivery Frequencies are in place at some airports, but by and large, the above process was how you got your clearance.

    Departing from a TRACON controlled airport usually was easier and quicker. The TRACON has a direct line that is available for pilots to call to speak directly with a controller, but not all these phone numbers are published.

    As of June 20th, the FAA is implementing this at all uncontrolled airports. On the chart supplement for all IFR charts across the US (not including Alaska), the FAA will publish the Center phone numbers and remaining TRACON phone numbers for pilots to call directly to receive their IFR clearances and departure instructions, and to cancel their IFR flight plans (A lot of TRACONs already have their phone number published).

    Flight Service will no longer be taking IFR flight plan cancellations. Pilots will still be able to cancel with Center or TRACON in the air, but will now need to call the number on the chart supplement on the ground for cancellation.

    Now that the FAA is modernizing this process, hopefully more pilots will decide to call on the ground for their clearance on a MVFR or IFR day instead of taking off and trying to pick it up in the air.

    Finding the Chart Supplement on Foreflight

    Where is the Chart Supplement? I’m so glad you asked.

    Before iPads, everyone carried around the green book, officially known as the Airport/Facilities Directory, or A/FD. With the advent of Foreflight & Garmin Pilot & others, all the information in the A/FD is now easily accessible in each of the Apps.

    Foreflight may integrate the clearance delivery phone number for each airport into their airport information page, but in the meantime, here is how to find the Chart Supplement.

    On Foreflight, go to Documents along the bottom of the App. In the Catalog on the left, tap FAA. Chart Supplement will be about 1/3 of the way down the page. Tap that, then tap the region you need and it will download into your Documents Library.

    Once it is downloaded, check the Table of Contents for FAA Telephone Numbers and NWS. Go to that page and scroll through to find the Center or TRACON you are needing, then dial the number.

    Happy Flying!

    There is great news coming for all IFR pilots who utilize the multitude of uncontrolled airports across the US. From the beginning of aviation time, the process of getting an IFR clearance at an uncontrolled airport has been arduous. For airports under Center controlled airspace, you had to dial the Clearance Delivery line, which ported…

  • A Complex Clearance?

    I was flying in the Rio Grande Valley in south Texas a few weeks ago and heard an IFR clearance given to a King Air that pricked my ears up.  It was a clearance from CRP to LRD, but the routing was one you don’t hear too often anymore.  Because of active military airspace, the routing was via a radial and DME off the CRP VOR (so a point defined by the radial and DME) to another radial and DME point off the LRD VOR.

    It took me a second to think about how to do this the easiest (without setting up the VOR and watching the DME).  After a moment’s thought, it’s actually a snap with the G1000.  You create 2 user waypoints, one for each Radial/DME spot, then put those 2 user waypoints in your Flight Plan.

    Here’s how.

    Step 1

    Using the big knob, go to the Waypoint chapter.  Once there, scroll down to the User Waypoint page using the small knob.

    Step 2

    Press the New soft key.  If you want to name the waypoint something specific, you can do that at the top of the page.  If not, it will default to something like VOR 1 or VOR 2.

    Step 3

    Under Waypoint Type, use the small knob to select RAD/DIS (stands for Radial/Distance).

    Step 4

    Under Reference Waypoints, again using the small knob (or your keypad), type or dial in the VOR identifier, the radial from that VOR, and the DME distance.  Press enter and you are done.

    Once you have both User Waypoints created, then just put them in your flight plan (if you forget what you named them, you can just go back to the User Waypoint page), and off you go.

    I was flying in the Rio Grande Valley in south Texas a few weeks ago and heard an IFR clearance given to a King Air that pricked my ears up.  It was a clearance from CRP to LRD, but the routing was one you don’t hear too often anymore.  Because of active military airspace, the…

  • New Houston Airspace Procedures

    If you are based in Houston, or heading into or out of the Houston airspace under IFR, have you updated your charts?  If not, you may hear a clearance stating: “N67889, cleared to Amarillo via the BORRN 1 Departure, CRGER Transition, Direct.  Climb via the departure, expect 8000 in 10 minutes.  Departure frequency 123.8, Squawk 3365.”  You manage to get the clearance written down, but have completely messed up the spelling of both BORRN and CRGER, so you have no idea where the intersections are.  After stumbling through a readback, you ask ground to spell the fixes for you.

    Then, more bad news.  You haven’t updated your GPS cards yet, so the departure isn’t in your 430.  It’s an RNAV only departure, so you can’t fly it based on the NAV Radio.  You were planning on updating your iPad when you got to Amarillo, so you don’t have the departure on there, either.

    This has probably already happened to a few people today already.

    Houston airspace got a major overhaul today.  There are 20 new DPs and 29 new STARs guiding IFR traffic into and out of Houston airspace (including one named the DOOBI 1 Arrival, named after the Dooby Brothers band).

    The FAA’s goal in all these changes, according to AOPA, is to “bring fuel efficiencies, time efficiencies, and reduce carbon emissions” (from Benet J. Wilson’s May 15th article on AOPA.com).  The FAA issued a NOTAM today valid until June 6th describing what routes for pilots to file.  The NOTAM also contains contingency plans for pilots flying without updated charts (like our example above).

    Pilots should expect these wide scale procedure additions and changes to start showing up in other Class B airspace across the country.  As always, make sure those charts are updated, GPS databases are current, and you do some studying of your route before you file your flight plan.

    If you are based in Houston, or heading into or out of the Houston airspace under IFR, have you updated your charts?  If not, you may hear a clearance stating: “N67889, cleared to Amarillo via the BORRN 1 Departure, CRGER Transition, Direct.  Climb via the departure, expect 8000 in 10 minutes.  Departure frequency 123.8, Squawk…

  • Flight Service Station

    When is the last time you talked to the Flight Service Station?

    Believe it or not, FSS is still in existence.  Over the past 10 years, they went from FAA run, the being bought by Lockheed Martin, to now being privately run by a company called Leidos. 1-800-WX Brief will get you connected with a weather briefer, but you’ll hear “Leidos Flight Service Station” now when the briefer picks up.

    Since the advent of Foreflight, most pilots these days get their weather briefings digitally on the iPad. Foreflight has come a long way since it’s inception.  The briefing part of their Flights page is quite comprehensive, with lots of information, and counts as a legal weather briefing (which pilots are still required to get before a flight).

    Why does a pilot even need to call Flight Service?  Well, when’s the last time you tried to interpret everything the Briefing on Foreflight told you?  As I said before, it’s a lot of information and a lot of it can be confusing.  Pilots are not fully trained on interpreting Prog Charts and getting an overall weather picture for a flight.  A weather briefer is.

    I have over 5,000 hours and I still call a weather briefer before almost every flight.  On the way to the airport is a great opportunity to get a weather briefing.  I get a great picture of what’s going on in my area or over my route, frontal movement, bad weather areas, and whether or not it’s a good idea to even take off. Calling in the car alleviates the main complaint I hear about calling the Flight Service Station, which is it’s inconvenient and causes a delay since you have to call them on the phone.

    I don’t do much private pilot training anymore, but when I do, I always teach my students how to get a weather briefing from the Flight Service Station.  I’ll show them how to get the briefing on Foreflight too, but usually their eyes bug out of their heads when they start trying to read everything.  A breathe of relief is released when I tell them there is a trained professional just a phone call away who can clear everything up.

    The other thing that the Flight Service Station provides that is important to a lot of folks are PIREPs.  It’s vital in sketchy weather areas for the FSS to get a report of what’s actually going on in the air.  This helps other pilots out greatly as they are getting information about icing, cloud bases and tops, turbulence and a myriad of other things from airplanes who are actually in the conditions.

    Finally, the most used portion of the Flight Service Station is the Clearance Delivery line (888-766-8267). At airports without a tower or a clearance delivery frequency, with IFR conditions present, the only way to get your IFR clearance is to call Clearance Delivery.  Yes, it can take a little time sometimes, but you will get a clearance every time, unlike taking off and trying to dodge the clouds without hitting anything, while trying to call Center on the radio (which isn’t safe or legal).

    Been a while since you’ve talked to the Flight Service Station?  Give them a call, either on the phone or on the radio.  Odds are, they are bored and just wanting someone to talk to, just like you are on that long cross country flight!

    Checkout 1800WXBrief.com to see all the cool stuff the Flight Service Station does.

    When is the last time you talked to the Flight Service Station? Believe it or not, FSS is still in existence.  Over the past 10 years, they went from FAA run, the being bought by Lockheed Martin, to now being privately run by a company called Leidos. 1-800-WX Brief will get you connected with a…

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