Cross countryUnlike last week, Tuesday started off perfectly. The sky was blue and the sun was shining. I knew the weather would not be a factor for this flight. For this flight, it was just me and Christian. I usually invite someone to ride in the back, but I wanted to remove all distractions for this flight.
I arrived a Galvin Flying a half hour early and my plane was still out, so I bought an Operator’s Manual for the Cessna 172S. I already own one for the Cessna 172P, but there are enough differences to justify the cost of the book. Christian sat down and we started talking about the upcoming flight. I told him that he is the boss and makes the final decision, but I’d like some input into where we go and what we do. I told him that I prefer flights that involve complicated procedures separated by less complicated straight line segments. A flight full of complicated procedures leaves me feeling both physically and mentally exhausted and I don’t learn well in that environment. He agreed and let me file the flight plan I described.
My flight started at Boeing Field and headed north to Skagit Regional airport in Burlington; a 58 nautical mile journey. At Boeing Field, we were directed to runway 13R and told to hold short. There was a UPS Boeing 767 Heavy waiting to take off on the same runway. Big jets create wake turbulence that can topple small airplanes, so the tower made us wait for 3 minutes to let the turbulence subside. The time passed and we were cleared to the active runway. Shortly after leaving the ground, the tower told us to contact Seattle Departure and have a nice flight.
At this point, Christian told me to put on my “foggles”. When the weather is “nice”, instrument students wear vision limiting devices to simulate flying in instrument weather conditions. Some students use “the hood” whereas I prefer “foggles”. Foggles are basically safety glasses that are clear only along the bottom. They prevent me from looking out the window to get my bearings. Instrument pilots depend on the instruments to provide information about the attitude of the airplane.
Seattle Departure told us to turn east, then north towards Skagit Regional. There was slight turbulence in the area, but not too bad. Seattle Departure passed us to Seattle Center, who eventually passed us off to Whidbey Approach.
Whidbey Approach cleared us for the full procedure NDB (non-directional beacon) approach to runway 10. A full procedure approach requires the pilot to follow the procedure exactly as it is documented on the approach plates. The NDB 10 approach involves flying over the NDB, then flying away from the NDB on a heading that is opposite the runway heading, then turning around and flying back to the runway. The turn is achieved by doing a procedure turn, which is a 45° turn in one direction followed by a 225° turn in the opposite direction. After turning around, Whidbey Approach told us to change to the CTAF (common traffic advisory frequency) for Skagit and contact him again after departing Skagit.
Christian announced on CTAF that we were 7 miles out landing straight in to runway 10. There was another plane in the pattern and he graciously extended his downwind leg to let us land first. NDB approaches are referred to a non-precision approaches, which simply means there is no vertical guidance available. If no vertical guidance, the regulations allow the pilot to only descend to 700 feet above the runway. With vertical guidance, a pilot can descend to 200 feet above the runway.
I descended to the minimum altitude allowed for this approach and leveled off. In true instrument conditions, I could land only if I could see the airport from this altitude. If I was still in the clouds, I’d have to go to an alternate airport with better weather or a precision approach procedure. Weather was no factor, so I could easily see the runway off to my right. I slowed the plane and turned toward the runway for landing. On the ground safely, I exited the active runway and taxied back to the end to begin the next segment of my flight.
After departing Skagit, we contacted Whidbey Approach again and he gave me a vector to intercept the VOR (very-high frequency omnidirectional range) radial for the VOR 16R approach into Paine Field in Everett. Like the NDB approach, a VOR approach is also non-precision, but it is more precise than the NDB approach. Therefore, the vertical limit is 500 feet above the runway. Once I was established on the radial towards the runway, Whidbey Approach cleared me for the approach and told me to contact Paine Tower when passing the outer marker. I contacted Paine Tower at the outer marker, which is about 8 miles from the runway. The tower was having a conversation with another pilot about working overtime. Apparently, the tower, which normally closes at 9:00pm, was staying open until 5:00am to accomodate Northwest Airlines and Alaska Airlines maintenence flights into Paine Field. As we approached the runway, I heard tower tell a Northwest airplane to taxi onto the runway and hold for traffic flying over the field (that was us). When practicing approaches, students rarely land after the approach. Instead, we fly the missed approach procedure associated with the approach. This allows the student to practice the full procedure and doesn’t waste time landing and taking off again, which all private pilots already know how to do. As I neared the missed approach point, tower told me to turn right, but remain on his frequency. Once over the runway and heading away from the airport, tower cleared the Northwest jet to takeoff.
Tower told us to contact Seattle Center shortly after the Northwest jet was well separated from us. Seattle Center vectored us to intercept the localizer for runway 13R at Boeing field, then turned us over to Seattle Approach. Once on the localizer, Seattle Approach cleared us for the ILS (instrument landing system) approach to runway 13R. An ILS approach offers both horizontal (via the localizer) and vertical (via the glideslope) guidance, and is therefore a precision approach. All the pilot needs to do is keep the needles on the instrument centered.
But that would be too easy. At this point, Christian covered up the attitude indicator and twisted the knob on the directional heading indicator, just to make things interesting. On top of that, the light turbulence began to bounce the plane in three dimensions. I concentrated on the needles and made minor corrections when they moved from the center. At 300 feet, I reached my minimum descent altitude, but Christian told me to keep going all the way to 100 feet above the ground. At that point, I removed my foggles and my windshield was filled by the runway lights of runway 13R directly in front of me. Too bad all airports don’t have ILS approaches!