Tag: weather

The Jungfraujoch in flight simulation.

Post author By Stanley
Post date 13 March 2023

On the train heading for the Jungfraujoch, Switzerland 2013.

Ten years ago this year, we took the train to the Jungfraujoch Top of Europe station.

Sphinx astronomical observatory on the Jungfraujoch in Switzerland.

The latter is located in the Jungfraujoch pass in Switzerland, at an altitude of 3571 meters (11,716 feet MSL).

The construction of this station was a feat of engineering at the time, but cost the lives of many workers. One does not make one’s way through a mountain range with sticks of dynamite without the occasional unforeseen agenda imposed by nitroglycerine.

The train can therefore only reach this station by traveling inside the mountains on a steep slope requiring a hydraulic mechanism to pull the train forward. The tourist must trust the engineers and the technical support…

To remind myself of our trip to this region, I thought of taking a virtual helicopter flight from Lauterbrunnen to land directly on the platform of the Sphinx astronomical observatory, this world famous tourist attraction of the Jungfraujoch. Fortunately for me, the company Red Wing Simulations recently created a virtual scene including these two magnificent sites.

Lauterbrunnen, Switzerland and the Microsoft Flight Simulator Bell 407.

Flight simulation enthusiasts will be well advised to use the Bell 407, as the operating limit of the Guimbal Cabri G2 provided by the Microsoft flight simulator is capped at 13,000 feet. It is best to fly with a slightly more powerful aircraft when maneuvering at this altitude.

Airborne from Lauterbrunnen, Switzerland, with Microsoft Flight Simulator 2020.

From a green landscape in the summer one gradually flies towards the eternal snow of the highest peaks in the Valais.

Getting closer to the Jungfraujoch, Switzerland.

The scenery was spectacular on the train and it is just as spectacular in virtual flight. A mechanical problem with the helicopter in this environment of grandiose cliffs would leave little chance for the pilot.

Approaching the Sphinx Observatory on the Jungfraujoch, Switzerland.

Here we are on approach: it is possible to land on the platform of the Sphinx observatory, but the pilot needs to be prepared for wind shear and unforeseen clouds at this altitude while taking care during the approach to avoid touching the flagpole and the protective fences surrounding the platform.

The Sphinx observatory on the Jungfraujoch with the Bell 407 helicopter on the platform using Microsoft Flight Simulator.

The Red Wing Simulations company has done an outstanding job designing this virtual scenery. In the photo below, you can even see skiers at the bottom of the cliff warming up before their first run.

Red Wing Simulations skiers at the base of the Jungfraujoch observatory on Microsoft Flight Simulator.

Even if the virtual scene includes something other than Lauterbrunnen and the Jungfraujoch, the pleasure of making a successful approach on the Sphinx platform alone is worth the cost of acquiring the software.

The Sphinx observatory on the Jungfraujoch and the helicopter on the platform using Microsoft Flight Simulator

Microsoft Flight Simulator and Red Wing Simulations representation of the Jungfraujoch Observatory platform.

Click on the links for more challenging virtual flights or flight simulation information on my blog.

Flight Simulation

Flight simulation: a FedEx MD-11 inbound for the Telluride airport (KTEX) (FSX)

Post author By Stanley
Post date 20 January 2017

The flight simulator enthousiast will have fun trying this short flight ( 14 minutes) from the Eagle County virtual airport (KEGE) to the Telluride virtual airport (KTEX). The virtual flight, using FSX, was made during winter, on January 8th. The shots below represent an idea of what is visible while flying toTelluride. Use 14,000 feet, it should do it…

FedEx MD-11 on the take-off run at the Eagle County airport (KEGE) (FSX)

FedEx MD-11 airborne from the Eagle County airport (KEGE) (FSX)

FedEx MD-11 between Eagle County airport (KEGE) and Telluride airport (KTEX) (FSX)

There are lots of beautiful mountains between KEGE and Telluride, and also some unpredictable weather…

The expected ceiling at Telluride was 8500 ft. On the way to the airport, the clouds and visibility were sometimes obscuring the mountains.

A FedEx MD-11 on a flight Eagle County (KEGE) to Telluride (KTEX) (FSX)

Telluride is a very inviting airport for a MD-11. The 7000 feet runway itself does not represent a big challenge, although its 100 feet are a bit narrow: this aircraft would normally require a 150 feet wide landing surface.

The virtual VFR approach made with the MD-11 was the most expensive way to do the trip, since it required a fly-by and a 270 degree turn to the right to align with runway 09.

FedEx MD-11 flies by the Telluride airport KTEX) (FSX)

The 270 degree turn at a 10-20 degree bank allowed to transit from 14,000 to 10,000 ft without doing anything radical. Just a turn while descending and gradually loosing speed to arrive at around 160 kts on final. The aircraft was now installed on long final, with flaps set at 50 degrees.

A FedEx MD-11 on long final runway 09 for the Telluride airport (KTEX) (FSX)

The high altitude runway’s 9078 feet msl elevation meant the pilots dealt with lower air density and heavy weight when approaching and, as such, the airspeed had to be adjusted accordingly to prevent stalling on final.

A FedEx MD-11 on final runway 09 for the Telluride airport (KTEX) (FSX)

Here is a view from the Telluride tower…

View from the Telluride airport (KTEX) (FSX) of a FedEx MD-11 on final for runway 09

Now with a view like that, you would not consider coming in IFR…!

A FedEx MD-11 inbound from KEGE on final for runway 09 at the Telluride airport (KTEX) (FSX)

To prevent an overshoot and some additional expenses in fuel (which are already skyrocketing), an optimal approach was required.

Most accidents with the MD-11 happen when the pilot pushes on the stick when there is a rebound with the nose wheel, thus creating an even stronger rebound. When there is a rebound, there is no need to push on the stick, just wait and the aircraft sets itself quickly.

A FedEx MD-11 over the threshold runway 09 at the Telluride airport (KTEX) (FSX)

Now with max breaking and thrust reversers…

A FedEX MD-11 slowing down at the Telluride airport (KTEX) (FSX)

The MD-11 can easily turn at the first taxiway at Telluride. But in order to capture a wider view of the airport, I exited at the last taxiway (again adding to the already enormous expense in fuel…)

A FedEX Md-11 is exiting runway 09 at the Telluride airport (KTEX) (FSX)

The employee on the ramp was worried that the MD-11 lower winglet would scratch N900SS while taxiing. But there was plenty of space (11 inches)…

A FedEX Md-11 is taxiing on the ramp at the Telluride airport (KTEX) (FSX)

The MD-11 was parked temporarily in a spot needed by every aircraft. It was necessary to unload quickly the precious cargo and get out of the way.

Temporary parking for a FedEx MD-11 at the Telluride airport (KTEX) (FSX)

Some expert handling would be needed to help move back that MD-11 close to the runway. But that was the Telluride’s airport manager problem and he had promised he would have something ready!

FedEx Md-11 parked at the Telluride airport (KTEX) (FSX)

The virtual scenery from departure to destination is a creation of ORBX programmers and the virtual MD-11 is made by PMDG Simulations (I am not sure it works with P3D though). For the weather, I used REX Simulations as the weather engine and REX and Cumulus X for the cloud textures. (Edit: PMDG does not support it’s MD-11 anymore).

For other challenging virtual flights, head towards the flight simulation section of my web site, under “challenging virtual flights”: there is something for everyone!

For more articles on flight simulation on my web site, click on the following link : Flight simulation

Real life stories as a flight service specialist (FSS): the Nav Canada flight information center (FIC) in Québec City

A storm goes through the Quebec Jean-Lesage international airport

Post author By Stanley
Post date 12 March 2016

A roll arcus cloud in development ahead of a thunderstorm approaching the Quebec Jean-Lesage airport in 2012.

Summer 2012. A very active cold front had been sweeping across the province and was about to hit the Québec Jean-Lesage international airport (CYQB). Considering the winds and the temperature spread, as well as the weather radar, it was obvious that it would be a very interesting show.

The Nav Canada control tower and flight information center (FIC) being collocated, the common stairway surrounding the tower became a privileged spot from where to take pictures. As a flight service specialist (FSS) on a short morning break, I grabbed my camera and headed outside on the stairway, just in time to see a line of roll arcus clouds arrive over the mountains to the north-west.

A roll arcus cloud ahead of a thunderstorm heading for Quebec City in 2012

The first showers started, quickly followed by strong gusty winds and hail. In order to protect myself from the severe weather, I just had to slightly change position on the stairway and use the tower as a shield. Satisfied with my shots, I abandoned my observation post and let Mother Nature express herself.

An arcus cloud ahead of a thunderstorm approaching the Quebec Jean-Lesage airport in 2012

An arcus roll cloud in delopment near the Quebec Jean-Lesage airport in 2012

Tags aviation photography, CYQB, FIC, flight service specialist, FSS, Nav Canada, Quebec flight information center, Quebec Jean-Lesage international airport, real life stories, roll arcus cloud, severe weather, thunderstorms, weather, weather radars

Real life stories as a flight service specialist (FSS): the Nav Canada flight information center (FIC) in Québec City

Photography: The St-Jean-sur-Richelieu hot air balloon festival

Post author By Stanley
Post date 24 February 2016

The hot air balloon C-FNHP is being inflated at the St-Jean-sur-Richelieu festival in 2012

The Nav Canada flight service specialists (FSS) working at the flight information center (FIC) at the Quebec Jean-Lesage international airport (CYQB) regularly receive telephone calls from hot air balloon pilots preparing their next flight. Actual and forecasted wind conditions are important, be it on the ground or in the air. But the FSS must also take into account the slightest possibility of a rain shower that would wet the balloon’s envelope, the variation in the convection according to the time of the day which would then affect the winds, the local effects, etc.

Although it is interesting to brief a hot air balloon pilot on the telephone, it is far better to witness their activity when getting ready for a flight. And the effect is even more striking when you position yourself in the middle of a field where more than a hundred hot air balloons lift altogether.

A first group of hot air balloons are autorized to lift at the St-Jean-sur-Richelieu festival in 2012

Summer 2012. A beautiful day was expected in St-Jean-sur-Richelieu. Blue sky and calm winds were forecasted for the evening. There would certainly be photo opportunities (Canon 5D MKII).

The field where the balloons were being prepared was fenced, but there were here and there openings and it seemed possible to enter the area without attracting too much attention. I made an attempt and could rapidly live the frenzy associated with the preparation and launch of more than one hundred hot air balloons.

Rising hot air balloons in St-Jean-sur-Richelieu in 2012

The balloons progressively took shape and it became possible to see their designs and superb colours. Each team was taking care of the last details that ensure a synchronized launch when the signal would be given. The organizer eventually gave the go ahead signal and the hot air balloons all lifted up within a very short time span. This was a magnificent show!

Hot air ballons at the St-Jean-sur-Richelieu Festival in 2012

Visitors at the 2012 St-Jean-sur-Richelieu hot air balloons festival

Few years earlier, during summer 2005, a hot air balloon had flown over our house in Quebec City at about one hundred feet. This was not a normal situation to witness that balloon slowly lose altitude and get closer to electrical wires. I had taken my bike and followed the balloon since it became obvious that the pilot was trying to land, possibly short of propane gas.

The pilot did not have an easy task, flying low over the city streets, close to the wires and other obstacles. The passengers must have been wondering what would be the issue of that flight. Arriving near a school, the pilot had seen a small parking lot and tried to land there, avoiding the church steeple on the other side of the street.

We were few citizens to hang to the basket and immobilize it while the balloon’s envelope was slowly deflating. I was able to take a shot of that unusual balloon’s approach…

Hot air balloon landing on a Quebec City street in 2005

For more real life stories about being a FSS in Quebec City, click on the following link: Flight service specialist (FSS) in Quebec City

Real life stories as a flight service specialist (FSS): the Nav Canada flight information center (FIC) in Québec City

Air Canada and the Nav Canada flight information center (FIC) in Quebec City

Post author By Stanley
Post date 17 February 2016

Nav Canada control tower with, in the foreground, several CL-215 and Cl-415, a Nav Canada Challenger, and an Air Transat Airbus at the Quebec Jean-Lesage international airport (CYQB).

On a stormy summer day, Air Canada called the Nav Canada flight information center (FIC) at the Quebec Jean-Lesage international airport (CYQB) on the Montreal frequency. The pilot was flying an Airbus and was about to take-off from the Montreal Pierre-Elliott-Trudeau international airport to Halifax, but there was violent weather that had to be avoided.

Normally, big airlines have their own briefing and flight planning services. However, rapidly changing weather sometimes requires last minute adjustments. In the case of the Air Canada flight, severe thunderstorms forbid a direct path from Montreal to Halifax.
The pilot was looking for the best option: go around the thunderstorms by flying north over Mont-Joli then eastward to Halifax or fly southward to United States then head east to Halifax.

Both solutions were possible but the objective was to pick the route that would diminish the pilot’s chances to have to divert to an alternate airport.

Radar imagery became the essential tool to propose a solution. Knowing the time lapse between two images, it was possible to evaluate the weather system’s speed. By calculating what was the distance left for the system to arrive in Halifax, and knowing the system’s speed, the flight service specialist (FSS) was able to estimate as precisely as possible the time when the thunderstorms would move over the destination airport.

The pilot having calculated the estimated time of arrival to Halifax for both the south and north routes, and now knowing at what time the weather system would be over Halifax, he understood that the best option was the southern route through United States. If there was no last minute modification in the system’s speed, he would be able to land in Halifax between twenty and thirty minutes before the first thunderstorm cells arrive over the airport.

It is fairly uncommon to receive an official feedback from the pilot of a big company like Air Canada. But the next day, surprising the flight service specialist (FSS), the pilot called back, presenting himself as the one who had made a flight from Montreal to Halifax the precedent day. He wanted to thank the FSS who had helped him in his decision making since, as he said it, the route via the United States had been a success and he was able to land his Airbus thirty minutes before the arrival of the thunderstorms. That kind of call certainly helps any employee to start a working day on the good foot…!

For more real life stories about being a FSS in Quebec City, click on the following link: Flight service specialist (FSS) in Quebec City

Real life stories as a flight service specialist (FSS): the Nav Canada flight information center (FIC) in Québec City

The Nav Canada flight information center (FIC) in Quebec City and the worker using dynamite

Post author By Stanley
Post date 11 February 2016

Thunderstorms in the Province of Quebec in 2012

The Nav Canada flight information center (FIC) in Quebec City (CYQB) does not normally take calls from the general public since air traffic services are centered on the needs of pilots.

But a particularly urgent situation sometimes dictate a more flexible approach. I remember a telephone call we received on the 800 line, during a very hot summer day of 2007. A worker in charge of the installation of dynamite in a mine in the Abitibi region told the flight service specialist (FSS) that he was working for a big company and that an important blasting operation was to be undertaken soon. He was in the middle of the blasting site, having just completed the installation of the detonators and explosives on the whole area.

He was wondering if there could be something he did not know about the weather since there were very dark clouds coming his way. The flight information center FSS was aware of the meteorological situation in Abitibi, and it was certainly not appropriate for a blasting operation. The caller was told that gigantic thunderstorm cells were forming in his sector and that the lightning detectors were already recording hundreds of strikes.

His actual position, in the middle of detonators and dynamite, was certainly problematic, to say the least. Without asking anything else, he told us that he was getting out of the site quickly…

(Photo taken with a Canon 5D MKII)

For more real life stories about being a FSS in Quebec City, click on the following link: Flight service specialist (FSS) in Quebec City

Tags Abitibi, air traffic services, Canon 5D MKII, CYQB, FIC, flight service specialist, FSS, Nav Canada, photo, Quebec City, Quebec flight information center, real life stories, security, thunderstorms, weather, weather photography

Real life stories as a flight service specialist (FSS): Quebec FSS

Québec City FSS and an Air Canada DC-9 Captain

Post author By Stanley
Post date 27 January 2016

Old Quebec airport terminal with an Air Canada DC-9 and a QuebecAir BAC 1-11 (on aviation postcard)

Around 1996, during the summer, an Air Canada DC-9 captain visited the Transport Canada flight service station in Québec City (CYQB) to receive a last minute briefing on the weather conditions between Quebec and Toronto.

All the passengers were already on board, but the captain had noticed a rapid change in the size of thunderstorms approaching the Québec City airport. Wishing to make the best decision, he requested the latest information on the approaching line of thunderstorms before proceeding with the takeoff.

The weather radar and satellite pictures showed a wall of convective cells that a DC-9 would not be able to go through. It would not fly high enough nor be able to go around the system unless it made a detour through Val-d’Or to the north or the Tennessee to the south.

The captain already knew the consequences of his decision. He nonetheless took the phone and called Air Canada’s dispatch in Toronto, announcing that he would not leave Quebec until the weather was acceptable. He could envision the missed transfers in Toronto for most of his passengers, and their bad mood in face of the lengthy delays he expected in Québec City.

Nevertheless, his decision was made and he left the flight service station satisfied. He knew very well that a line of heavy thunderstorms had often been the cause of accidents and that no aircraft, whatever the size, was safe when dealing with a wall of severe thunderstorms.

The flight service specialists (FSS) were happy with the captain’s decision since, throughout the years, the FSS often witnessed far less commendable behaviour from pilots of all categories. Judgment is the capacity to evaluate consequences, and it is not given to everybody.

An Air Canada DC-9 taking off under nice weather

For more real life stories about being a FSS in Quebec City, click on the following link: Flight service specialist (FSS) in Quebec City

Real life stories as a flight service specialist (FSS): the Nav Canada flight information center (FIC) in Québec City

A dust devil takes a pilot by surprise in Rouyn-Noranda

Post author By Stanley
Post date 23 January 2016

April 2013, at the Nav Canada Flight Information Center (FIC) in Québec City. This morning’s meterological forecasts indicate the possibility of dust devils. This type of obstacle to visibility is rare. The pilots call the flight service specialists (FSS) to know what “PO” means on the weather charts.

In spite of the calm winds and blue sky all over southern Quebec, the weather conditions can give birth to local wind shears. If they lift sand, dust or other small particles, those wind shears will become visible and cause dust devils five to ten meters in diameter.

A pilot would have to be unlucky to cross a rare dust devil. However, I remember an event I witnessed thirty years ago while I was working at the Transport Canada Rouyn-Noranda flight service station.

On a hot summer day, an aircraft landed in Rouyn-Noranda after a cross-country flight from Montreal. The pilot was making a short stopover to have his logbook stamped at the flight service station. The weather conditions were ideal at the airport: dry air, calm winds and a cloudless sky.

Once his run-up was completed on the taxiway, the pilot slowly headed for the runway 26 threshold. Once aligned and ready for take-off, he made the last few adjustments.

Few seconds later, the flight service specialists heard an emergency locater transmitter signal. Looking again at the runway, they saw that the aircraft was still on the threshold, but upside down.

A strong windshear had overturned the single-engine aircraft. The airport wind speed indicator being located farther away from the threshold only indicated calm winds.

The souvenir of this story reminded me that nature can always surprise the best prepared pilot. I imagine that this event shocked the student pilot as he tried, like us, to figure out what had just happened. I do hope that this adventure did not discourage him from flying.

For more real life stories about being a FSS in Quebec City, click on the following link: Flight service specialist (FSS) in Quebec City

Real life stories as a flight service specialist (FSS): Iqaluit FSS

Ravens fly under -85C around the Iqaluit flight service station

Post author By Stanley
Post date 20 December 2015

Corbeau photographed by Brad Hill in 2010

February 1990 in Iqaluit, on Baffin Island, Canada. Activities have slowed down a bit today. A temperature of -43C combined with 35 mph north-west winds means that the wind chill factor has gone down to -85C (NOAA Wind Chill Chart). We see far fewer pedestrians and even less motor vehicles on the city’s few roads. Many engines refuse to start and the motor oil has almost the consistency of maple taffy.

A special day indeed as, from the Transport Canada flight service station (FSS) tower, we can watch a very interesting performance. Huge ravens have picked that very windy day to have fun, regardless of the temperature. Flying under the wind near the FSS cab, they benefit from the venturi effect. There is no need flapping their wings. They just glide while occasionally correcting the angle of attack to adjust for the gusting wind.

The wind chill factor affecting living organisms, I find it quite spectacular to see those huge black birds having fun while we would expect that, with a -85C factor, ravens which must not absolutely fly would stay under cover until the weather improves a bit.

We can clearly hear the noise made by the wind on the wings of a huge raven when it glides over us. One day, I was walking near the Apex village under total silence. Suddenly I heard a raven glide low over my head. He was possibly checking if there was anything eatable out of that deformed shape transformed by multiple layers of winter clothing. There was only the rustling of the wind on its large open wings and no other sound. That was a very special experience.

For more real life stories as a FSS in Iqaluit, click on the following link: Flight service specialist (FSS) in Iqaluit

Real life stories as a flight service specialist (FSS): Iqaluit FSS

Pilots surprised by the extreme weather prevailing in Iqaluit

Post author By Stanley
Post date 16 November 2015

The Transport Canada flight service specialists (FSS) in Iqaluit were sometimes amazed by the type of clothing chosen by pilots who were ferrying aircrafts from Europe to America.

Small and mid-size aircrafts required a flight plan including a stopover in Iqaluit, on Baffin Island, since refueling was necessary. One would think that pilots would have prepared themselves for unexpected situations and plan according to the extreme weather conditions prevailing at some of the airports along their route to America.

The FSS staff witnessed, on numerous occasions, small jets experience serious problems while refueling under very cold temperature. While the tanks were being filled up, the tires were deflating progressively.

Hapag Lloyd D-AHLO B737-4K5 in its delivery flight in 1989, from Boeing Field (KBFI) to Iqaluit, and then towards Germany. It is being refueled during difficult weather conditions. This type of aircraft did not experience much problem with the cold weather, but it was not the case with smaller business jets

A small delay in the operations and the engines did not start anymore. The pilots got out of their aircraft, wearing only a thin leather jacket and summer shoes. Trying to protect themselves from the bitter cold, they gesticulated while talking with the fuel man who, himself, was wearing a thick Arctic suit that protected him from head to toes.

A thin leather jacket and summer shoes were certainly appropriate for Southern Europe but far from being useful on the apron of an airport where the wind chill factor often varied between -50C and -65C. The aircraft sometimes had to be towed in a hangar in order to be warmed up for hours, if not the night, and the transit fees grew exponentially.

I suppose that a pilot who lived such an experience remembers it today as clearly as the FSS staff, but not for the same reasons. And it is almost certain that he prepared accordingly for the next ferry flight.

Mountains around Iqaluit, during a nice day when there is still ice in the bay. The blue tones are absolutely magnificent.

For more real life stories as a FSS in Iqaluit, click on the following link: Flight service specialist (FSS) in Iqaluit