Dramatic CL415 low level water drop in California
Moderators: sky's the limit, sepia, Sulako, lilfssister, North Shore, I WAS Birddog
-
Jim la Jungle
- Rank 3

- Posts: 134
- Joined: Fri Mar 26, 2004 3:11 pm
- Driving Rain
- Rank 10

- Posts: 2696
- Joined: Tue Feb 17, 2004 5:10 pm
- Location: At a Tanker Base near you.
- Contact:
T240 and T243 are Call sign Quebec 1 & 2. They're leased to Los Angeles County Fire every winter and fall for the past 15 years or so. The Americans tanker industry hates it when Canadians go down there.
The drop height looks normal for an into wind drop. The load bunches up to a thicker coverage level when dropping into wind. It works real well when dealing with hot spots as in this video.
http://www.fire.lacounty.gov/AirWildlan ... erscoopers
http://wildfirenews.com/fire/articles/cl415.html
As this artical points out it's all bull shit and politics down there when it comes to fire fighting.
The drop height looks normal for an into wind drop. The load bunches up to a thicker coverage level when dropping into wind. It works real well when dealing with hot spots as in this video.
http://www.fire.lacounty.gov/AirWildlan ... erscoopers
http://wildfirenews.com/fire/articles/cl415.html
As this artical points out it's all bull shit and politics down there when it comes to fire fighting.
-
desksgo
- Rank 10

- Posts: 2850
- Joined: Thu Feb 19, 2004 12:05 pm
- Location: Toy Poodle Town, Manitoba
- Contact:
Thanks for the insight. Nice to see the 415 making a difference south.
It's amazing to see the difference in approaches to fire supression between the two countries. I've heard some pretty scary things from folks responsible for the maintenance of the american tanker fleet. Those guys work hard, but what they are given to work with leaves something to be desired on those worn out birds.
It's amazing to see the difference in approaches to fire supression between the two countries. I've heard some pretty scary things from folks responsible for the maintenance of the american tanker fleet. Those guys work hard, but what they are given to work with leaves something to be desired on those worn out birds.
- Cat Driver
- Top Poster

- Posts: 18921
- Joined: Sun Feb 15, 2004 8:31 pm
- Cat Driver
- Top Poster

- Posts: 18921
- Joined: Sun Feb 15, 2004 8:31 pm
Is it really turbulent flying along those ridges, with rising heat and mechanical turbulent, coupled with such close proximity to trees and buidlings?
Sometimes it can get real turbulent, but there are many things you can use to judge how bad it may be, and sometimes you just don't even try to do a drop.
Yes, losing around 10,000 pounds in a second or so does give you an upward push so to speak.You must really climb after dropping a load.
Looking at that drop inside a built up area reminded me of a drop I did many moons ago right inside of the city in Santiago Chile...there was a fire next to the US embassy and they had me drop a load of water on it....real fun.
The hardest thing about flying is knowing when to say no
After over a half a century of flying no one ever died because of my decision not to fly.
After over a half a century of flying no one ever died because of my decision not to fly.
Quote from Wildfirenews.com
"Had the L.A. County supervisors utilized our aircraft instead of the SuperScoopers, L.A. County would have saved $1.2 million each year," says Wells. "Water-bombing aircraft must drop the water and foam on the seat of the fire, just like a firefighter dragging a hose line up into the back bedroom of a two-story house where the fire is. Retardant tankers make an indirect attack adjacent to the fire; they seldom are required to drop on the actual fire. A piston-powered PBY, though, does effectively drop water on the actual fire. The CL-415 and 215 rarely can in our area, because unlike the PBY, the wing loading is different. The CL-415 cannot safely slow down to drop accurately in high winds and turbulence."
It looked accurate to me...
"Had the L.A. County supervisors utilized our aircraft instead of the SuperScoopers, L.A. County would have saved $1.2 million each year," says Wells. "Water-bombing aircraft must drop the water and foam on the seat of the fire, just like a firefighter dragging a hose line up into the back bedroom of a two-story house where the fire is. Retardant tankers make an indirect attack adjacent to the fire; they seldom are required to drop on the actual fire. A piston-powered PBY, though, does effectively drop water on the actual fire. The CL-415 and 215 rarely can in our area, because unlike the PBY, the wing loading is different. The CL-415 cannot safely slow down to drop accurately in high winds and turbulence."
It looked accurate to me...
- Driving Rain
- Rank 10

- Posts: 2696
- Joined: Tue Feb 17, 2004 5:10 pm
- Location: At a Tanker Base near you.
- Contact:
Yes, it's quite turblent but don't forget the plane is heavy between 41,000 to 47,000 lbs prior to the drop. That helps reduce the bumps. The aircraft looses up to 13,500 lbs instantly. This can be converted to altitude if the pilot wishes. Most drops the pilots just apply full power and a slight forward or down elevator to compensate for the upward moment after the load is pickled.bmc wrote:Cat or Driving Rain
Is it really turbulent flying along those ridges, with rising heat and mechanical turbulent, coupled with such close proximity to trees and buidlings? You must really climb after dropping a load.
The aircraft has a massive and effective powered rudder with an automatic trim compensator.(RTC) We use it to sometimes skid the aircraft and load where it needs to be.
- Driving Rain
- Rank 10

- Posts: 2696
- Joined: Tue Feb 17, 2004 5:10 pm
- Location: At a Tanker Base near you.
- Contact:
Yes the author of that statement owns a PBY that he wanted to rent to LA county. I suppose we should go back to horse drawn engines because hay burners are cheaper too. How about we send our Navy to a war zone in Tall wooden ships because they're real cheap to run too.AV8OR wrote:Quote from Wildfirenews.com
"Had the L.A. County supervisors utilized our aircraft instead of the SuperScoopers, L.A. County would have saved $1.2 million each year," says Wells. "Water-bombing aircraft must drop the water and foam on the seat of the fire, just like a firefighter dragging a hose line up into the back bedroom of a two-story house where the fire is. Retardant tankers make an indirect attack adjacent to the fire; they seldom are required to drop on the actual fire. A piston-powered PBY, though, does effectively drop water on the actual fire. The CL-415 and 215 rarely can in our area, because unlike the PBY, the wing loading is different. The CL-415 cannot safely slow down to drop accurately in high winds and turbulence."
It looked accurate to me...
Not to dis a PBY and get Cat all stirred up.
And speaking of wing loading the 215 and 415 ulitlize a special NACA 4417 that was optimized for it's primary mission.
The optimum drop speed for a 415 is between 100 and 105 kts. They can drop at up to 129kts if need be.
The film was taken on the Aqua Dulce fire near Santa Clarita in LA county. You don't see it on the film but the drop was made behind a series of homes.Drop speed was 105 kts at eight of 30 feet going slightly uphill.The reason the drop was made that low is because of the high winds that would have drifted the drop big time.
Scooping point was Palmdale reservoir about 12 miles from the fire.The 2 Quebec machines were Q240 and Q245, they usualy fly in pairs and operate out of Van Nuys airport.That is where the crews are posted, the aircraft are already loaded with 10 000 of water and are usually airborne in less than 5 minutes.With winds in excess of 50 knots it was quite turbulent in those canyons.
Scooping point was Palmdale reservoir about 12 miles from the fire.The 2 Quebec machines were Q240 and Q245, they usualy fly in pairs and operate out of Van Nuys airport.That is where the crews are posted, the aircraft are already loaded with 10 000 of water and are usually airborne in less than 5 minutes.With winds in excess of 50 knots it was quite turbulent in those canyons.
- Driving Rain
- Rank 10

- Posts: 2696
- Joined: Tue Feb 17, 2004 5:10 pm
- Location: At a Tanker Base near you.
- Contact:
auto4,auto4 wrote:The film was taken on the Aqua Dulce fire near Santa Clarita in LA county. You don't see it on the film but the drop was made behind a series of homes.Drop speed was 105 kts at eight of 30 feet going slightly uphill.The reason the drop was made that low is because of the high winds that would have drifted the drop big time.
Scooping point was Palmdale reservoir about 12 miles from the fire.The 2 Quebec machines were Q240 and Q245, they usualy fly in pairs and operate out of Van Nuys airport.That is where the crews are posted, the aircraft are already loaded with 10 000 of water and are usually airborne in less than 5 minutes.With winds in excess of 50 knots it was quite turbulent in those canyons.
Everyone in the Tanker community in Canada is proud of the job you guys are doing. I tuned in to the fire briefing and I understand you guys were up and at it at 7:00am this morning. The conditions of 50 kt + winds will make for a long day. Stay safe my friends
-
AEROMONKEY
- Rank 5

- Posts: 395
- Joined: Wed Jul 13, 2005 7:19 pm
- Location: Thunder Bay
- Scuba_Steve
- Rank 7

- Posts: 660
- Joined: Mon Oct 18, 2004 9:10 pm
- Driving Rain
- Rank 10

- Posts: 2696
- Joined: Tue Feb 17, 2004 5:10 pm
- Location: At a Tanker Base near you.
- Contact:
Steve.................................maybe ..............................we.............................great..................water.............bomb..........good.
this reply message has been edited by Aviation an Fire Management Ontario. That's what we do. Where is Californeye A again?
Maps, I need Maps, anyone seen the Maps.
this reply message has been edited by Aviation an Fire Management Ontario. That's what we do. Where is Californeye A again?
Maps, I need Maps, anyone seen the Maps.
Very impressive for sure.
Just heard on the news today that the Martin Mars are being readied to head down tomorrow. They had both been packed up and put away for the winter, but are being taken out to help with these huge fires. Not sure if it is just one or both going down.
Just heard on the news today that the Martin Mars are being readied to head down tomorrow. They had both been packed up and put away for the winter, but are being taken out to help with these huge fires. Not sure if it is just one or both going down.
Those fires will slow down in the next couple a days, a flow of air from the ocean will be enough to help the crews to win the battle. As for bringing more airplane,as for yesterday,no other aircraft were requested from our organisation.
I was proud to be there as a Canadian,to show our neighbour that we can be a greath help. But it would have been great to have the rest of my fellow canadians in their 215-415,Mars and Air Tankers to demonstrate the professionalism throuhout Canada of our pilots and ame.
I was proud to be there as a Canadian,to show our neighbour that we can be a greath help. But it would have been great to have the rest of my fellow canadians in their 215-415,Mars and Air Tankers to demonstrate the professionalism throuhout Canada of our pilots and ame.
- North of You
- Rank 3

- Posts: 172
- Joined: Sun Mar 28, 2004 9:21 pm
- Location: On the Grassy Knoll, Fat Dumb and Happy
Ohh when I see that sort of flying it just makes me want to rip of this dam white shirt and apply. Good on you boys, your making us proud.
And as for the Yanks and their grumblings. I guess they just don't like foreigners flying over their country trying to lend a hand. Just imagine how the Iraqis must feel.
And as for the Yanks and their grumblings. I guess they just don't like foreigners flying over their country trying to lend a hand. Just imagine how the Iraqis must feel.


