MV-22 Osprey as a firefighting aircraft

V-22 OspreyEric, one of our loyal readers, sent us a link to an article that explores the use of the military MV-22 Osprey tilt-rotor aircraft as a firefighting machine. The Osprey can take off and land vertically like a helicopter, and then tilts the rotors to fly horizontally at 277 mph.

The article dismisses the use of the Osprey as a direct attack, water-dropping aircraft, primarily for the reasons we outlined in an article we wrote in 2010 (scroll down to see a reprint of that post). But it suggests the Osprey could be useful in other ways to support a firefighting operation.

Here is an excerpt from the piece at medium.com, published October 27, 2013:

“It takes forever to get to a rural wildfire. Let’s use the Osprey to shrink distance and get critical equipment to the front,” he says. “Expensive command and control gear could be quickly transferred from central depots to forward fire bases, and from there other transport would carry them the ‘last half-mile’ to the fire line.”

“The Osprey can reduce the response time for elite wild-fire fighters — smokejumpers or hotshot teams — getting ‘boots on the ground’ faster, with more gear, reducing the time it takes to initially attack wildfires,” Hooper says. “And there’s also the possibility of reducing the cost of initial attacks: more firefighters can qualify for descending a rope-drop than for jump school, at less cost per person.”

Specialized critical assets — too expensive to distribute widely — are another potential cargo. “Air traffic control can get very tricky over a disaster area. Deploying an air traffic control team or a ‘control tower in a box’ would be a perfect example of how the range and speed of an Osprey could … make a big difference.”

But an Osprey with its twin 22-foot rotors creates ferocious downwash, blowing debris around like shotgun blasts. “They need to go into a relatively clean landing zone and then get out—so they may be a better fit moving equipment [near] an impacted zone than, say, doing gritty work inside the disaster area,” Hooper proposes.

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(Below is the article we wrote January 3, 2010 at Wildfire Today)

Osprey. USAF photo
MV-22 Osprey. USAF photo

The MV-22 Osprey, a tilt-rotor, vertical take-off and landing aircraft, is replacing some of the Vietnam era CH-46E Sea Knight and CH-53 Super Stallion helicopters used by the Marine Corps. Since the disastrous wildfires in southern California in 2007, the U.S. Navy and the Marine Corps have had an agreement with Cal Fire making it possible to use their military helicopters on fires if Cal Fire is unable to handle the fires with their own aerial assets.

In July of 2008, CH-46E and CH-53E military helicopters made at least 574 drops on fires in California, delivering 217,000 gallons of water.

At first glance, the Osprey might seem like an excellent firefighting tool. It is fast (cruises at 277 mph), could haul 24-32 firefighters, and could carry 1,800 gallons of water externally. But it has never dropped a gallon of water on a fire and it is possible that it never will due to at least two potential problem areas.

Rotor Wash

As you can see in the photo above, the rotor wash or downdraft from an Osprey is extremely strong–far stronger than a conventional helicopter. Rotor wash from a helicopter can cause, and has caused, serious problems when the wind from the rotors spreads the fire in unexpected directions, sometimes doing more harm than good. Marines even worry that Osprey rotor wash may damage or destroy unrecorded archaeological sites in training areas.

According to a report from the Government Accountability Office, the rotor wash creates enough force to knock sailors and aircraft off a flight deck on a ship.

May CAUSE fires

The Osprey’s engines run extremely hot, so hot that the Navy is taking special precautions to prevent the engine exhaust from melting or buckling the aluminum decks of warships. A report from DARPA states:

The deployment of the MV-22 Osprey has resulted in ship flight deck buckling that has been attributed to the excessive heat impact from engine exhaust plumes… Navy studies have indicated that repeated deck buckling will likely cause deck failure before planned ship life.

DARPA has designed a “flight deck thermal management system” which would liquid-cool the deck from below or above while the aircraft are idling or launching. The military has put out a request for proposals for other permanent deck-cooling systems that could be retro-fitted or designed into new ships still on the drawing board.

Wildfire Today reported on May 30, 2009, that an Osprey made an unscheduled precautionary landing in North Carolina and started a 5-acre fire in a wet marsh. We wrote then:

Marines refueled the Osprey but according to WECT.com, upon taking off it “smashed into swamp mud, nose first”. During that takeoff attempt, heat from the engine exhaust started a vegetation fire which did some damage to the exterior of the aircraft.

A news release from the Marine Corp claims:

The grass fire was quickly extinguished by the crew chief, but caused an undetermined amount of heat damage to the aircraft exterior.

But Emergency Management Director Eddie King said the local fire department had to work through the night to extinguish a 5-acre fire, in an area infested with snakes and alligators, that was caused by the incident.

Osprey hauling a Humvee. U.S. Navy photo.
Osprey hauling a Humvee. U.S. Navy photo.

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(UPDATE October 28, 2013)

On May 31, 2010 an MV-22 Osprey tilt-rotor aircraft being demonstrated by the U. S. Marine Corp at a Staten Island park near New York City injured 10 spectators when the rotor wash sent debris flying. More information.

Slow-motion video of Lockheed Electra L-188 retardant drops

A Lockheed Electra L-188 air tanker, #489, dropping in slow motion on a wildfire. The date, location, and videographer (other than the logo at bottom-right) are unknown.

The wake turbulence as the aircraft passes through the smoke at 2:45 is very interesting, as is the precision drop at 1:45, keeping the retardant off the rocks in an area that is highly visible to recreationists on the nearby lake.

In August of 2012 Wildfire Today ran a photo of Tanker 489 dropping on the Taylor Bridge Fire.

Thanks go out to Chris

10 Tanker Air Carrier moves to Albuquerque, begins converting a third DC-10

Tanker 910 Rapid City
Tanker 910 landing at Rapid City, April 23, 2013. Photo by Bill Gabbert.

10 Tanker Air Carrier, the company that operates the two DC-10 air tankers, has moved their corporate headquarters from Victorville, California to the airport at Albuquerque, New Mexico.

Rick Hatton, the CEO of the company, said yesterday about the relocation that occurred in September:

We surveyed a number of sites in the Rocky Mountain West, wanting to have more of a national presence versus being perceived as a “California Only” or Region 5 resource. Albuquerque topped the list due to a combination of off-season weather, business environment, and airport facilities.

The company moved into on-airport space with additional nearby offices and a warehouse. One of the facilities is a 7,600-square-foot building previously owned by Eclipse Aviation Corp, who’s business plan was to produce and sell small jets for $1 million each, a concept that failed.

In May Mr. Hatton announced that they were moving to Casper, Wyoming but by July cancelled those plans.

10 Tanker has evaluated airports that could serve as air tanker bases for their DC-10s and identified 30 that could handle the jumbo jets either with the existing infrastructure or with the addition of a temporary mobile retardant base.

DC-10 potential reload bases
DC-10 actual and potential retardant reload bases, as determined by 10 Tanker Air Carrier. The red circles represent permanent air tanker bases at which they could reload. The blue circles are airports at which they could reload from a mobile retardant base. (click to enlarge)

Mr. Hatton said their two DC-10s, Tankers 910 and 911, so far in 2013 have delivered 4.4 million gallons of retardant on 386 flights.

They have started converting a third DC-10, speculating that it will be used in 2014.

 

Thanks go out to Jared.

Two aircraft crashes in Australia connected to bushfires

Dromader M-18 air tanker
File photo of Dromader M-18 in Prineville, Oregon. Photo by Ted Quackenbush.

Two pilots were killed in Australia Wednesday and Thursday in separate crashes while they were fighting or supporting bushfires in New South Wales.

On Wednesday Peter Brereton, 60, was killed when his light plane crashed on his way back from dropping off spare parts for a helicopter used in the fire fighting efforts on the south coast of NSW October 23, 2013. After he did not return as expected a search located the wreckage Thursday morning in rugged terrain near Mt Hotham in Victoria. Eight helicopters and two fixed wing planes were involved in the search for the Cessna. He had recently retired from the Country Fire Authority as an Operations Officer for District 22 that covers Shepparton.

David Black, 43, died when his Dromader single engine air tanker crashed while fighting a fire at Wirritin in Budawang National Park, 40 kilometers west of Ulladulla, around 10 a.m. on October 24, 2013.  The Australian network ABC reported that a wing snapped off the aircraft before it went down. The crash started another bushfire which, along with high winds, was hampering efforts to reach the pilot. Other firefighting aircraft were called to the area and were attempting to slow the spread of the fire.

Our sincere condolences go out to the families and coworkers of both pilots.

Airbus begins tests of C295 air tanker

C295 test water drop
C295 test drop. Airbus photo.

Airbus Military has begun tests near Cordoba, Spain of a C295 aircraft modified as an air tanker. The flights went well, according to the company, and further tests are planned in the near future to make a more detailed analysis of the C295 as a firefighter aircraft.

The C295 looks similar to the C-27J but it has less impressive performance. According to Wikipedia (see the links above) the payload capacity of the C295 is about 5,000 pounds less and the engines have 57 percent of the horsepower of the C-27J. It would probably carry about 400 gallons less retardant than the C-27J, with a capacity of around 1,400 to 1,700 gallons is our guess.

Comparison, C-27J and C295
Comparison, C-27J and C295. Info from Wikipedia. (click to enlarge)

Rumor has it that France is considering replacing their fleet of Conair Turbocats, which are retrofitted Grumman S-2 Trackers.

A Polish Air Force CASA C-295M
A Polish Air Force CASA C-295M

 

Thanks go out to Walter

2013 Airtanker and Water Scooper Forum

The U.S. Forest Service has scheduled an “Airtanker and Water Scooper Forum” to be held in Boise November 19-20, 2013. Today they posted a notice about it at the GSA site that is normally used for solicitations about contracts and requests for proposals, fbo.gov — an odd way to advertise a conference. It even has a Solicitation Number (SN-2014-01). But, almost everything the federal government does concerning fire aviation is odd.

This is rather short notice for a meeting like this.

The topics include:

  • Questions (preferably submitted in advance) and answers.
  • Review of accidents.
  • Future strategy for airtankers, VLATs, and water scoopers: next-gen, legacy, budgets, fleet design, aerial supervision, policy and operational changes, pilot practical test standards.
  • Contracts Q&A.
  • Aviation audits.
  • Technology: ATU, AFF, AFUE.
  • Aviation program updates: FAS-AVID report, night flying, public aircraft operations, retardant avoidance areas.

More information about the “Forum”.
The agenda.
Registration form.

Speaking of aviation, I checked into air fares between Rapid City and Boise and was shocked — $858 was the lowest. Holy Crap. RAP is expensive to fly out of because of a lack of competition.

Thankfully, as far as I know there is no admission fee to attend the Forum.

Commemorating air tanker pilots in Spain

43 GrupoAnother video has been produced about the 43rd Grupo (Group) Firefighting Squadron of the Spanish Air Force commissioned in 1971 when the first Canadair CL-215 arrived in the country. During four decades and 150,000 flight hours, the Squadron has suffered 9 fatal accidents, with a total of 15 casualties and the loss of 25% of its fleet. War-fighting in peace time. Ten years have passed since that last accident, and this video honors those young aviators who gave it all.

Other 43 Grupo videos can be found at Wildfire Today.

2011 was an especially bad year for aerial firefighters in Spain. At least 11 firefighters died in accidents involving helicopters and a single engine air tanker.

 

Thanks go out to Hidros

Video of Aero Flite’s RJ85 dropping water

Aeroflite T-160
Aero Flite’s Tanker 160 at Abbotsford, B.C.

The RJ85 (similar to a BAe-146) that Conair is converting into an air tanker for Aero Flite made a test drop recently at the Abbotsford airport in British Columbia, and the video showed up on YouTube:

On September 11 we wrote about Tanker 160 and included a couple of photographs.

 

Thanks go out to Walter.