Tuesday, January 11, 2011

Helium Head

MetLife Blimp Moor Shot (011:365)
"MetLife Blimp Mooring Shot"
Olympus E-3 with ZD 50-200mm
1/640, f/4, ISO 100, 92mm
Today, I had the opportunity to get up close and personal to a blimp. This is the second blimp I've seen at Orlando Executive Airport; the first was advertising DirecTV. I spotted this one on Monday on the way into work. When today rolled around I made sure to come better prepared, so I had the E-3 with the ZD 50-200mm and the E-P2 in the car. I made sure to leave as early as I could to catch a bit more light before sundown. On the way home I pulled off the 408 and made my way to the same spot I'd used for the DirecTV blimp.

As I was taking my first few photographs, a truck drove up and parked next to where I had parked. Oh no, I thought. I'm going to get yelled at for taking pictures. That's what I've come to expect in this post-9/11 world. Instead, the first words out of the drivers mouth was "Would you like to get closer?" He had to ask me again before it fully registered I wasn't in trouble.

The driver quickly identified himself as the pilot, and one of the group that drives from city to city, using the blimp as a big flying billboard. After making sure I wasn't going to be a bother, I got back in my car and followed him to a simple staging area, close to where the blimp was moored.


Airship Bill
"Airship Bill"
Olympus E-P2 with ZD 9-18mm + DMW-MA1
1/800s, f/6.3, ISO 800, 9mm
His name is Bill (and a fine name if I do say so). He was quite happy to show me the airship and very patient to explain, in general, how it all worked. Slipped into the stream of facts were several stories about others who come out to see the blimps. He called them blimp groupies, or helium heads. He told the story of one nice lady who came out and decided to sit next to the blimp in her lawn chair while reading a book. Others come out like I do to take photographs at all hours.

If you look at the photography of Airship Bill you should notice the round fixture on the skin, right above his head. It contains a porthole that allows him (and others in the crew) to observe the interior of the blimp, and to make measurements in order to maintain proper buoyancy while moored. This blimp (and others like it) maintains overpressure to remain properly inflated. The interior contains another interior balloon, which is inflated with regular air. Helium is very expensive; therefore, the blimp is flown by controlling the amount of regular air in the inner balloon, as well as using the pusher engines to provide thrust and directional control. The amount of helium remains constant, and is added to compensate for leakage over time.


Blimp Mooring Shot
"Mooring Mast and Blimp"
Olympus E-3 with ZD 50-200mm
1/320s, f/4, ISO 100, 50mm
When a blimp isn't aloft it's down on the ground and moored to its tower. Today, the blimp was hovering such that it's small bumper wheel beneath the gondola wasn't touching the ground. This was to keep the bumper wheel from diviting into the ground in case a gust cause the blimp to shift. I was even warned that this might happen, and to not get too close if the winds picked up. Bill seemed concerned that when you've got your eye on the camera your attention isn't on what the blimp is doing. Which brings us to rule #1 about photographing blimps: always have someone nearby at all times. Don't do this alone.

One of the facts I remember concerns the advertising on the exterior: It's made of the same material that bumper stickers are made of, and it's all carefully cut into hundres of small sections in such a way that it will properly wrap around the rounded exterior when applied. The darker blue lines are the edges of the sections. Applying exteriors to a blimp isn't the kind of job I think I'd want; I don't know how many times I've silently cursed the fact I had a wrinkle or air bubble under a bumper sticker or similar appliqué.


Blimp Cockpit Interior
"Blimp Cockpit Interior"
Olympus E-P2 with ZD 9-18mm + DMW-MA1
1/160s, f/6.3, ISO 800, 9mm
The gondola was simple but efficient. According to Bill the instruments are what you'd find in your typical small Cesna. Since I've never been in a Cesna I'll have to take his word for it.

There's a round mirror that allows the pilot to quickly check the engines, and there's another porthole for looking up into the gasbag. The pilot has what appear to be a pair of wheelchair wheels on either side of the seat, for raising and lowering the blimp when under way.


Blimp Engines and Landing Wheel
"Blimp Engines and Landing Wheel"
Olympus E-P2 with ZD 9-18mm + DMW-MA1
1/1250s, f/6.3, ISO 800, 12mm


Blimp Engine Detail
"Blimp Engine Detail"
Olympus E-3 with ZD 50-200mm
1/400s, f/4, ISO 100, 137mm
There are two engines attached to the gondola at the rear, one on each side. They're organized as pushers. According to Bill they're the equivalent of snowblower engines. I have no idea how noisy they might be when operating.

I'm looking forward to more blimps coming into Orlando Executive, and of documenting them. According to Bill there can be upwards of three at a time on the field, which would offer some interesting compositions. I'll have to keep my eye on the airfield as I pass by each day. Maybe, just maybe, I'll take a detour one morning on the way into work just to be different.

I find blimps compelling. They seem to float as if by magic. They have a quiet elegance that no other powered aircraft can approach. They're fun and as it turns out, approachable. I guess I am a helium head. And I have no problem with being called that, at least in this context.

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