Tag: 747

Above: The front page of the El Mercurio newspaper in Chile, January 26, 2017, shows one of the two drops the aircraft made on Wednesday. 

The arrival of the 747 Supertanker in Chile is generating a great deal of media interest, as well as capturing the attention of the Chilean people. A press conference at the airport the morning it arrived in Santiago drew a large number of reporters who shouted their questions at the government officials who were speaking.

The largest air tanker in the world combined with the busiest fire season in years and five firefighters killed (one pilot and four on the ground) would be big news anywhere.

The expectations of the aircraft may be a little high. Air tankers do not put out fires. Under ideal weather and vegetation conditions they can slow the spread of a fire, allowing firefighters on the ground to move in and construct a line around the fire and actually put it out.

On its first day in Chile the 747 SuperTanker made two drops on a wildfire but had to abort working on two other targets due to dense smoke over the fires.

After arriving in Santiago at sunrise on Wednesday the pilots went to a hotel to get the required rest before they were allowed to get back in the cockpit.

The other Global Supertanker personnel spent the rest of the morning and part of the afternoon unloading cargo, configuring the aircraft, meeting with local officials, and confirming logistics and operational procedures.

After all of that was accomplished it took off for its first mission, but while en route was diverted to drop on a different location where people were in imminent danger of being overrun by a fire. The huge aircraft works with a lead plane that scouts ahead of the air tanker and helps to determine where and how it can attack the fire safely and provide the best assistance for firefighters, and in some cases, residents, on the ground. In this case the pilot of the lead plane and the pilots in the air tanker found that the smoke and the visibility made it unsafe to attempt to drop on the fire.

After that decision was made the lead plane and the 747 reverted to the original target. The flight crew watched from a distance as the lead plane flew a “show me” run over the specific target area, indicating exactly what track to take and where to drop the water. Next, the air tanker made a dry run over the target, that is, without dropping water. This is frequently flown a little higher than the eventual water or retardant drop, to evaluate the effects of wind, convection over the fire, and terrain. Then after doing a large 360 it came around with the lead plane and made the actual drop — in this case, half of the 19,200-gallon load. A little later it made another pass and dropped the rest.

After those drops it returned to Santiago to reload with water. Due to the confined space and scattered parked airplanes on the military side of the airport that has been designated as the reload site, or “pit”, the 747 can’t simply taxi in, reload, and taxi out. A tug has to help it maneuver during either the in or out trip. This is a very unusual, almost unheard of, situation for an air tanker that is fighting forest fires. If a few of those parked aircraft were moved it would significantly reduce the turnaround time for the air tanker. It could come in to the dead end ramp, do a U-turn, park, reload, and taxi out.

After reloading it flew to another designated target, but again smoke was a serious issue. Both the 747 and the lead plane explored and examined several potential tracks to the intended target, but it was deemed unsafe to attempt to fly through the smoke, so the SuperTanker returned to Santiago and landed with its tanks full, without having to jettison the load before landing like most other air tankers are required to do.

Like all air tankers, the 747 can drop either water or long term fire retardant, the red slightly viscous liquid that is seen being dropped from most air tankers in North America, Australia, and Europe. Retardant is more effective than plain water. It actually chemically interferes with the combustion process, while the thickened nature of it allows the wet, ketchup-like substance to stick to surfaces rather than running off onto the ground. But long term fire retardant is not available in Santiago.

There are a number of products that can be mixed with plain water to enhance its effectiveness, usually at less than one percent concentration. The one being used by the SuperTanker is Pyrocool which is stored on the aircraft and added to the tanks as needed. Pyrocool has not been approved for use by the U.S. Forest Service, but has been used on marine fires and on the World Trade Center fire.

We corrected the article to reflect that Pyrocool has not been approved for use on wildland fires by the U.S. Forest Service, but has been used on some other types of fires within the United States including marine fires and the World Trade Center.

Above: The crew from the 747 SuperTanker is welcomed at the Santiago Airport, January 25, 2017.

Early Wednesday morning the 747 SuperTanker landed at Santiago, Chile to begin an assignment to help firefighters on the ground suppress some of the many fires burning in the country during an extended drought and heat wave.

After landing, the huge aircraft was towed by an airport tug to a remote corner of the military side of the airport where two very large bladder bags had been positioned, presumably containing water to fill the 19,200-gallon tank. It took quite a while for the tug to position the 747 in that location, so the aircraft crew will be working with the locals to reposition what will be a loading pit so that the aircraft can quickly taxi in and out to reload, without the use of a tug.

The first order of business was to bring three drug-sniffing dogs on board. One of them had to be carried up the very steep ladder to the upper deck — not an easy task. Kudos to the dog’s handler who made it look fairly easy, even though the dog looked quite uncomfortable.

After we were bussed to a VIP version of Customs, the U.S. Ambassador to Chile, Carol Perez met with Jim Wheeler, CEO and President of Global Supertanker. Next was a chaotic press conference where Alfredo Mascareno of CONAF, which is the Chilean version of the U.S. Forest Service, was mobbed by several dozen members of the media, including CNN of Chile. Mr. Wheeler told me he was grateful that he was not interviewed.

The two flight crews will get some rest Wednesday morning, and one of them will most likely be available in the afternoon to fly the aircraft. But many logistical and coordination details still need to be worked out.

Christopher M. Nyce of the U.S. Embassy told us that USA fire personnel have been deployed to Chile for this fire siege, including four from the USFS and a “team” from CAL FIRE. The USFS contingent arrived early Wednesday morning. CAL FIRE signed an agreement with Chile in November regarding mutual assistance during wildfires.  There may be firefighters from other countries arriving later this week. (UPDATE January 31, 2017: there was a change in plans, and the personnel from CAL FIRE did not deploy to Chile.)

Above: Ben and Lucy Ana Walton de Availés display a Chilean flag at the door of the 747 Supertanker the day before the air tanker departed for Chile. Photo by Bill Gabbert.

The assignment of the 747 SuperTanker to help fight the numerous wildfires in Chile is very different in at least one respect — a private foundation is supplying the starter funds for the huge air tanker to travel to Santiago and for approximately three days of actual use on fires.

An heir to the Walmart fortune, Ben Walton and his wife Lucy Ana Walton de Availés, of Denver, have worked out arrangements with the Chilean government and the operator of the 747, Global SuperTanker, to assist the firefighters on the ground in Chile. The funds are being provided by Ben and Lucy Ana’s foundation, Foundación Viento Sur, which has a connection to the Walton Family Foundation. They hope the government will retain the services of the air tanker for as long as it is needed after they see the effectiveness of the aircraft.

Lucy Ana is originally from Chile and has strong feelings about finding a way to help the residents in her homeland to defend against the fires that have destroyed scores of homes and damaged vineyards, a very important industry in the country.

Ben and Lucy Ana visited Global SuperTanker’s Colorado Springs facilities on January 23 and received a briefing on the use and capabilities of the aircraft. Ben has some pilot training and both of them, but especially Lucy Ana, were very enthusiastic about its capabilities and its potential to assist the residents of Chile.

Working out the details with the foundation, the Chilean government, and Global Supertanker was a complex procedure that took a few days. Finally late Tuesday morning, January 24, the flight crew received the GO order and departed for South America at about 1:40 p.m. MT.

Another cause receiving assistance from the foundation includes Postpartum Support International (PSI), an organization to help women suffering perinatal mood and anxiety disorders. The grant will strengthen postpartum treatment in the state of Colorado, although PSI has global connections. In 2016 the foundation helped arrange for $1.5 million worth of medical supplies to be sent to hospitals and rural clinics in Chile. And they also rebuilt a school after it was destroyed by the earthquake and resulting Tsunami in Chile a few years ago.