Around the Pattern

Ramblings about flying for fun and profit.

Tag: EAA AirVenture

Aviation Articles for August 19, 2011

Yes, I know it’s been a while since my last article. I found my self sitting in front of the computer for way too many hours in a day and forced myself to take a break. I turned off the computer for a week and then joined some friends at the West Coast National Hot Rod Show for a few days.

It has taken three days to wade through the list of emails I found when I got back online – I can’t even think about my RSS feeds yet – over 1000. I may just save a lot of time and mark all as read and start over.

Here are some flying stories you may have missed a couple of weeks ago:

Douglas AD-4NA Skyraider

Classic aircraft and cars
This one is from Collingwood, Ontario Canada. It covers an antique aircraft and car show that they have each year. Sounds like it’s a big event and getting bigger.

Aviation Summer Camp
This article is from CNN. It covers an aviation summer camp for teens that is being held in Florida. Destination Aviation is a camp that has been operating for four years at the Florida Air Museum at Sun-n-Fun. Sounds like a really fun learning experience for the kids.

A WWII Veteran and his Airplane
This is from the Naples, FL News. Sixty years after he last saw it, a WWII veteran gets to sit in the cockpit of a Skyraider that he flew in combat. Memories.

Aviation history in Yuma, AZ
This one, obviously, is from Yuma, AZ. the title of the article makes it sound like the event happened recently. The article actually recounts an event that happened in 1911 – the first airplane landing in the state of Arizona.

This couple really supports the Young Eagles Program
This one is from AOPA Online. Phillips Aviation supports the EAA Young Eagles Program in several ways and each year they award Phillips 66 Aviation Leadership Award during the annual Young Eagles banquet at AirVenture. The winner this year has introduced more than 1000 youngsters to the wonder of flight. This article describes their efforts. As an aside, EAA has announced that they will expand the Young Eagles Program to include adults in 2012.

The 2011 EAA Grand Champion Homebuilt Award Winner.
This is from Clark County Indiana. The EAA Grand Champion Homebuilt Award given out this year at AirVenture went to an RV-8 owned by David Buntin. This article is a short history of his project.

A Morning with Malcolm the Skycrane

I went out flying yesterday, just a short flight to help a friend confirm the indicated airspeed he was reading on his recently completed RV-6A. I stopped and refueled after the flight, taxied back to the hangar and pushed the plane back into it’s parking spot. Just as I finished a stranger walked into the hangar and introduced himself. His name is Guy Keilman. His brother flies for the same airline that I do and mentioned that if Guy ever got to Stead airport he should look me up – that I have a Swift based there. Guy saw me taxi the Swift back to my hangar and was nice enough to walk up and say hi.

Erickson's Sikorsky Skycrane named Malcolm Guy is currently one of the pilots flying the Erickson Skycrane that is assigned to the Stead fire-fighting base this year. I say currently because he is actually assigned to fly from one of Erickson’s bases in Greece this summer. They operate on a 3-week cycle of work and free time and  just arrived back in the U.S. for his break. He was enroute to his home in Northern California when he got a call that they really needed him as a crew member at Stead for a few days. It was just a lucky coincidence that we met yesterday. We talked in the hangar for a while and then he said he’d be happy to give me a tour of the Skycrane. I jumped at the chance. Of course, I had to call my wife and let her know. She has watched the Skycranes operate from Stead for years and has always been fascinated with their size and capabilities. When she heard about the tour opportunity she dropped everything, jumped into the car and headed for the airport. If you are a Twitter user, you may recognize her as @yaksierra .

To say that the Skycrane is big is  a bit of an understatement. It is almost 90 feet long and it’s main rotor has a span of 72 feet – that’s twice the wing span of a C-172/182 or Beechcraft Bonanza.  Erickson names each of it’s Skycranes. The most famous is “Elvis” which made an appearance at EAA’s AirVenture last year (This year the crowd there is seeing “Goliath”). The Stead Skycrane this year is named “Malcolm.” Skycrane water tank and pond snorkle.

This photo is of the fire-fighting water tank that is attached in the area normally taken up by the winch/sling apparatus. As you can see, the tank holds up to 2650 U.S. gallons of water. The actual amount that they carry is dependent upon their fuel load, the temperature and the density altitude (sound familiar?). The fitting you can see in the middle of the aft ‘7’ is a fill valve for a 70-gallon foam tank. The foam can be injected into the water tank enroute to the fire. The foam is a detergent-based surfactant that, in effect, makes the water wetter.  The gray area at the bottom of the tank is one of the full-length doors in the fully open position.  The long hose is the pond snorkel. It has an electro-hydraulic pump at the bottom end that can suck water into the tank from any water source that is at least 18″ deep – and fill the tank in as little as 45 seconds. The tank can also be equipped with a sea snorkel that can be used to scoop up water while the Skycrane maintains forward motion – this eliminates the water spray up into the rotors that occurs when the filling process is done from a hover. The tank can also be filled with fire retardant very similar to that used by the fixed-wing tankers.  A control panel on the center console in the cockpit is used to set the amount and rate that the water is dumped.

There is also a water cannon that can be fitted to the left front of the Skycrane. It is capable of shooting a water stream up to 160′ to the front at a rate of 300 gallons/minute. It could be used to fight a fire in a high-rise building. You can see it demonstrated on the Erickson web site.

Skycrane Rear-facing Pilot Seat. This photo shows the rearward-facing pilot seat. The crew complement for fire-fighting is two pilots, however when the mission is heavy-lift construction (placing large items on construction pads or erecting tall towers) a third pilot is added to the crew. This third pilot sits at a station to the rear and below the main pilots. There is a clear view from there of the load suspended from the hoist/winch. When the load is to be placed into position this rear-facing pilot takes control of the Skycrane and can position the load exactly where it needs to go.

Sikorsky Skycrane cockpit. The Erickson fire fighting operation is day, VFR only which is reflected in the relatively sparse instrument panel that you find in the cockpit. Here you can see the control sticks (cyclic) at both seats and the collective for the right seat. One of those switches you see on the collective controls the pump at the end of the snorkel. The amount of water in the tank is indicated on a digital display in the top center of the left instrument panel. Right side windshield of Skycrane fire bomber. The center console is home to a lone Garmin 500 navigator and the VHF and FM radios. The FM communications band is used to talk with the fire fighters on the ground.  The right seat pilot on this crew used an ingenious method to keep track of all the information they needed when they were last dispatched to a fire. The bottom right block has all the Stead frequencies.

For those of you who subscribe to the idea that a helicopter is 10,000 parts flying in loose formation in an oil slick. Here is a photo of a large number of those parts – the main rotor mast head and transmission housing. Skycrane Main Rotor Mast and Transmission. The bell housing in the bottom is where the rotating turbine shaft of the right engine is changed to the other-direction rotating, flapping, twisting, retreating and advancing motion it takes to keep a helicopter in the air. I am not a helicopter pilot but if I were that would still look terribly complicated to me.  Maybe some of you helicopter pilots out there can make sense of all those moving parts.

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