Category Archives: photo

It Might Be Raining, But It Is A 727!

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Winter in the PNW does not mean reliable conditions for photographing planes.  If the weather is bad, you might decide it isn’t worth going out.  If it is raining and threatening to rain harder, there is a strong possibility you would skip a shot opportunity.  However, 727s are getting pretty rare these days so that seems worthy of a trip out.

The weather was unpleasant when it made its approach but not as bad as it got a short while later.  I went with my normal approach for shooting in really bad conditions by pushing the overexposure pretty high.  I include a couple of edits.  For the main image, I actually blended two different process versions in Photoshop to get the combination that most reflects how the shot looked through the view finder.  The other edit is a straightforward Lightroom edit where the angle and the light suited it.

Stored 777X Numbers Grow

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While Boeing has delayed the entry to service date of the 777X, they have continued to produce airframes at Everett with the result being a number of stored airframes on the field.  There are four jets in the test program and the rest are not going to fly until certification is close so, for now, they are finding spaces across the airport for them.  Some are on the Boeing flight test ramp (with production of the other widebodies ramping down, space is more available I guess) while others are on the cross runway.  This has been home to 787s and 737 Max jets over the years and now it is the turn of the 777X.  Some of them are identifiable by the paint on the folded wing tips while others are unmarked for now.

Clouds over Mt Rainier

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On one of my days off – taken in order to get my PTO balance down – I headed out for some aviation exploration.  The weather on this day was not great but, since I had struck it lucky on some of my other days off, I guess the odds were bound to swing the other way at some point.  While it was cloudy in Seattle, looking south to Mt Rainier, the sun was out on the mountain.  That didn’t mean it was cloud free, though.  There was a lot of cloud forming over the summit as the wind blew through so I shot a few images to make a pano of the mountain.  It would have been a great day to fly around the mountain but sadly that wasn’t to be.

Omni 767 Finds a Gap in the Clouds

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For the second time this year, I was at Paine Field when an Omni Air International 767 showed up.  I wrote about the first time in this post.  On this occasion, it arrived in some quite blustery conditions but, as it was on final approach, a gap in the clouds opened up and provided some lovely light on the airframe while leaving the background dark and cloudy.  It makes for a far more interesting shot that would otherwise be the case on a day like that.

Views of Mt Rainier On My Way Home

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The drive to Mt St. Helens takes you south passed Mt Rainier.  The weather was pretty crummy as I headed south so I didn’t get any views of the mountain as a drove.  However, the weather had improved markedly by the time I headed home and the sun angle had come around to illuminate my side of the mountain.  Consequently, I stopped a couple of times on my way back north to take some pictures.  I want to do some hiking on Mt Rainier at some point but this was as close as I have got – at least on the ground.

A Bonus With the A-26

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Aside from my two HondaJets and a little other traffic, things were not looking too busy at Boeing Field.  I was contemplating my next move when I glanced at FlightRadar and saw a Douglas A-26 was flying over Seattle.  This is one that is based at Renton and used as a personal transport by the owner.  I have never seen it in action before.  Consequently, I was quite excited.  At first, I thought it looked like it was turning towards Boeing Field which would have been handy but then it headed north up towards the San Juan Islands.

I figured that, even if it was landing up there, it would be coming back to Renton later on so headed off in that direction to work out what flow the pattern was using.  The A-26 had departed over the lake to the north but all of the movements now seemed to be from the north so I figured it would come in from that direction.  No chance of shooting it from above at the overlook point at the south end but still plenty of options.

Unfortunately, they have closed off part of the park at the north end of the field and erected fencing.  This takes away an area of higher ground which gives a good view of the threshold.  However, with a couple of Cessnas bashing the circuit, I was able to see roughly what would be good and what wouldn’t.  A check on FlightRadar showed that they had finished flying around the San Juans and were coming back over the city.

They followed the water from the coast in to Lake Washington and I thought would be coming straight for me.  However, they continued over Bellevue instead.  I wondered if they were off somewhere else but soon they had turned back and were heading for Renton.  Looking up the lake, I could pick them out a long way out, long before they had even configured for landing.  With the fall foliage still evident on some of the shorelines, it made for quite a nice shot – something that wouldn’t have been the case at the other end.

The A-26 is pretty speedy so they were soon on final approach and I grabbed a bunch of shots both tight and wider.  Then they zipped by and behind the newly erected fencing!  I packed up my stuff and headed off but, as I drove back south, I saw they were still on the ramp outside the hangar.  I pulled in a watched them put the plane away.  Only at the last minute did I realize that I could have got a closer shot from near the gate but I shouldn’t complain given how lucky I had been to see them out on my day off.

Maritime Fire Training Facility

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A sunny weekend day at this time of year is not to be wasted so I took a bike ride across to Seattle.  I was heading for Discovery Park and one of the trails that made up my route took me passed a lot of the local shipyards.  As I approached one of them, I saw what looked like a funnel.  Then I realized it was a mock up of a whole ship.  It even had a helicopter on a pad.  One my return journey, I stopped to take a look.  I realized that there was a lot of piping underneath the structure and it had a notice about a fire training facility.  I guess they can simulate fires in different parts of the vessel and crews can be trained to handle them.  I wonder what it is like on the trail when the training is underway.

Landing a Southwest 737 in a Crosswind

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This Southwest 737-700 was completing a test flight at Paine Field.  The crosswind was pretty strong so the pilot used the wing down approach to handling the crosswind.  They touched down on the starboard gear and bounced a bit before settling those wheels on the surface.  A short while later, they rolled wings level and the port gear made contact.  Aside from the bounce, a pretty good example of landing in a crosswind in a big jet.

Disassembled Bicycle Tire Valve

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I recently bought some replacement valve cores for my bicycle tires.   I notice that part of the core was bent so decided to replace it.  It is a quick job to change the core over and, prior to throwing the old core away, I figure I would play with the macro lens.  I first too a picture of the still assembled core trying to angle it to show how badly bent the part was.  Then I figured I could take the core apart altogether.  Another focus stack and I could show the parts separated.  I love the detail you get of the metal surfaces when you shoot macro.

Shock Diamonds and the F-22

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Within the very high speed flows of air in an aircraft’s exhaust, you can set up a series of shock waves and expansion fans as a result of the differences between the pressure of the flow and that of the surrounding air.  When afterburner is engaged, the hot gases and the temperature changes these shocks and expansions cause, result in a diamond pattern forming in the exhaust plume.  In darker conditions, these diamonds are more conspicuous but they are visible even in normal daylight.

These diamond patterns are a function of the flow being symmetrical since most engines have round exhaust nozzles.  This isn’t the case for the F-22, though.  It has flattened nozzles with a pointed profile top and bottom.  This got me wondering what the effect is on the exhaust plume and whether the traditional diamonds are formed or whether the nozzle shape results in a different pattern of shock and expansions as they reflect within the plume.  I decided to dig in to some shots to see what I could find.

I don’t have a lot of F-22 afterburner shots.  While I have shot them a lot taking off, they often take off without afterburner.  Since they have plenty of power and burner use dramatically increases fuel consumption (and the F-22 is not over-endowed with range as it is), there is no point using burner if it isn’t needed.  Air shows are a time when they do give it plenty of burner, so that is the source of the shots.

The result of this is that there is definitely something unusual about the shock patterns.  I include some shots of F-16 and F/A-18 afterburner plumes and the normal shock patterns that create the hotspots known as the diamonds are very obvious and simple in shape.  For the F-22, things are very different with the patterns of hot zones being something more in line with the shape of the nozzle.  The way in which the patterns repeat is more complex than for an axisymmetric nozzle.  There is nothing much to conclude in these observations.  It is just something that appeals to an old aero guy like me.