The deluge gun’s arm extends 15 meters above the ground, so it is able to reach fires at the top of large aircraft. Conventionally, deluge guns are fixed in a direct position on the upper part of the vehicle body. HRET models, however, can not only extend the apparatus but can rotate it side to side and up and down, so they can be used for fires in both high and low places, even at near-ground level.

A piercing nozzle made of special steel can be attached to the tip of the deluge gun, allowing it to bore into the aircraft and apply firefighting agents directly.Speech

"It doesn't take much to get up above the trees and get a different vantage point that's never been seen," said Mat L. Matthews, a certified Edmonton drone operator and instructor.

But while they may get you that once-in-a-lifetime shot, they also put people at risk, Matthews said.

When a wildfire starts, the air around it immediately becomes a restricted airspace. Drones that do fly unauthorized in the area risk grounding firefighting aircraft. 

On Thursday, wildfire manager Chad Morrison said they were investigating an incident involving a drone within Fort McMurray. 

He also reinforced the severity of what could happen should a drone come into contact with aircraft . 

"Anything that can get caught up in the rotor can cause damages. It's not just a bird strike, right? It can be quite serious and cause aircraft to fail," Morrison said.

"The consequences can be dire. There is no margin or room for error when you're talking aircraft safety. It's fine if a drone gets destroyed or broken but you can't replace people's lives".

He asked for all drone activity in the area to stop immediately.

Aerial firefighting operations in these states were temporarily shut down on at least twelve occasions and there were two cases of near misses with drones, BLM officials said.

As a result, federal, state, and local wildland fire agencies and the Federal Aviation Administration are reminding members of the public not to fly drones -– also known as “Unmanned Aircraft Systems” -- over or near wildfires this season. Unauthorized UAS flights can potentially cause serious accidents and disrupt aerial firefighting operations.

“Fire agencies and the FAA caution that aerial intrusions like these can unduly threaten lives, property, and valuable natural and cultural resources. UAS interference may also stop firefighting operations and cause wildfires to become larger and more costly,” said BLM spokeswoman Jessica Gardetto.

“Firefighter and public safety are the top priority in wildfire management,” stated Dan Buckley, Chair of the National Multi-Agency Coordinating Group at the National Interagency Fire Center in Boise, Idaho. “If an unauthorized UAS is detected flying over or near a wildfire, we may have to ground all airtankers, helicopters, and other aerial firefighting aircraft until we can confirm that the UAS has left the area and we are confident it won’t be coming back, which could decrease the effectiveness of wildfire suppression operations.”

Aerial firefighting aircraft -- such as airtankers and helicopters -- fly at very low altitudes, typically just a couple of hundred feet above the ground and in the same airspace as UAS aircraft flown by the public. This creates the potential for a mid-air collision that could seriously injure or kill aerial and/or ground firefighters, Gardetto said.

The use of drones by fire departments and police agencies has grown across the country from Connecticut to Spokane, Washington, though there are some controversies and hurdles surrounding their use.

"It's not a perfect application for every fire," Santa Clara Fire Chief Bill Kelly told NBC Bay Area. "But a view from that vantage point helps us figure out tactical methods, like where to put the hose stream."