Categories
Flight Simulation

A radical way of dealing with crosswinds in flight simulation.

There is no aircraft in the sky around the Port Moresby Jacksons (AYPY) virtual airport today. No aircraft in the sky but one, a medevac flight.

Arrival of the Medevac towards the Port Moresby Jacksons (AYPY) airport. The winds forbid a normal landing.
Arrival of the Medevac towards the Port Moresby Jacksons (AYPY) airport. The winds forbid a normal landing.

The winds blow from 240 degree at 50G60 kts and the runways are oriented 14/32. It is way above the maximum crosswind authorized for any aircraft.

But the Shrike Commander’s crew cannot wait until the wind calms down. They must land in the next few minutes in order to save a patient’s life.

The Port Moresby Jacksons (AYPY) is in sight in the center top of the screen capture.
The Port Moresby Jacksons (AYPY) is in sight in the center top of the screen capture.

As there is no traffic around, the captain has told ATC he intends to do a safe, efficient but non-standard approach.

The aircraft is gradually positioned to arrive in a straight line for the AYPY hangar.
The aircraft is gradually positioned to arrive in a straight line for the AYPY hangar.
The aircraft aligns itself to face the wind blowing across the runways.
The aircraft aligns itself to face the wind blowing across the runways.

Arriving straight across the runways, facing the wind, the crew intends to land the aircraft a few feet short of a hangar. The captain requests that someone opens the hangar doors right away. The captain will terminate the approach in the hangar, protected from the wind.

Trajectory of the Shrike Commander 500S towards the hangar at the Port Moresby Jacksons airport. The hangar door has been open for the arrival.
Trajectory of the Shrike Commander 500S towards the hangar at the Port Moresby Jacksons airport. The hangar door has been open for the arrival.

It is safer to arrive facing the wind and immediately enter the hangar, straight ahead. No taxiing with a 60 knots crosswind.

Useless to say, ATC has already refused the request. But the pilot is the only one who decides of the best landing surface, for the safety of the passengers and himself. He proceeds with the approach after having clearly indicated which path will be followed.

The Shrike Commander 500S over the houses near the Port Moresby Jacksons airport.
The Shrike Commander 500S over the houses near the Port Moresby Jacksons airport.

The main problem for the approach is the low level mechanical turbulence caused by the gusty 60 kts winds.

If ATC wants to file a complaint, now is a good time to take a picture of the aircraft and its registration to support the case.

Flying by the AYPY control tower.
Flying by the AYPY control tower.

The actual ground speed of the airplane is around 20 kts.

The Shrike Commander 500S approaching across the runways at the Port Moresby Jacksons airport. The winds blow from 240 degree at 50G60.
The Shrike Commander 500S approaching across the runways at the Port Moresby Jacksons airport. The winds blow from 240 degree at 50G60.

The steady high wind speed is actually safer for the crew than if the winds were 240 at 35G60.

Ground speed of about 20 knots for the Shrike Commander 500S on final for the Port Moresby Jacksons hangar (AYPY).
Ground speed of about 20 knots for the Shrike Commander 500S on final for the Port Moresby Jacksons hangar (AYPY).

Still a bit above the runway and with a 10-20 knots ground speed. The airspeed indicator shows the strength of the wind itself plus the ground speed.

Indicated airspeed 70 knots.
Indicated airspeed 70 knots.
Frontal view of the Shrike Commander 500S about to land in front of the hangar at AYPY.
Frontal view of the Shrike Commander 500S about to land in front of the hangar at AYPY.

Floating like a hot air balloon or almost!

Side view of the Shrike Commander 500S on final for the Port Moresby Jacksons airport's hangar.
Side view of the Shrike Commander 500S on final for the Port Moresby Jacksons airport’s hangar.
The Shrike Commander will soon land in Port Moresby Jacksons.
The Shrike Commander will soon land in Port Moresby Jacksons.

As the aircraft touches the ground, it stops almost immediately. It is necessary to apply power to reach the hangar, as you can see with the white trail on the ground behind the aircraft.

In real life, the touch-down would have had to be as soon as the asphalt start since the presence of the hangar lowers the wind speed a bit.

The Shrike Commander lands a few feet before the hangar. Additional power is mandatory to reach the hangar.
The Shrike Commander lands a few feet before the hangar. Additional power is mandatory to reach the hangar.

A few seconds after the touch-down, the aircraft is in the hangar, protected from the wind, and both doctor and patient can quickly head out to the hospital.

The Shrike Commander 500S in the hangar at Port Moresby (AYPY).
The Shrike Commander 500S in the hangar at Port Moresby (AYPY).

Once in the hangar, the winds were adjusted to zero, which is kind of logical, unless the opposite wall is missing!

View of the Port Moresby Jacksons (AYPY)
View of the Port Moresby Jacksons (AYPY)

It was now time to brace for another storm, which was the inquiry that would possibly follow the landing!

(P.S.: Tim Harris and Ken Hall were the creators of this virtual Port Moresby Jacksons international airport) and it is sold by ORBX. The aircraft is sold by Carenado).

Categories
Flight Simulation

Flight simulation: the “Tapini” virtual scenery in Papua New Guinea (FSX)

A virtual DHC-6 Twin Otter enroute for Kokoda after a fire on the right engine while departing Yongai (KGH) in Papua New Guinea PNG (FSX)
A virtual DHC-6 Twin Otter enroute for Kokoda after a fire on the right engine while departing Yongai (KGH) in Papua New Guinea PNG (FSX)

Ken Hall and Tim Harris have created a new virtual scenery for flight simulation enthousiasts. It is called “Tapini” and sold by ORBX. Their penultimate creation, AYPY Jackson’s International, allowed the virtual pilot to fly in very demanding virtual airports along the Kokoda Trail in Papua New Guinea. “Tapini” represents a whole new challenge and I have included several screen captures to show you how the different runways look in this new virtual scenery.

“Tapini”, still in Papua New Guinea, allows the virtual pilot to test his skills on seven new runways located in difficult areas of the Owen Stanley Range. Those airports also constitute a serious test for any aircraft, like in the picture above where damages to the right engine were sustained at Yongai.

A virtual Piper Pacer virtuel is about to land on the Ononge (ONB) curved runway in Papua New Guinea PNG (FSX). (It is possible to see the curve starting on the top of the image)
A virtual Piper Pacer virtuel is about to land on the Ononge (ONB) curved runway in Papua New Guinea PNG (FSX). (It is possible to see the curve starting on the top of the image)

To improve the virtual clouds while flying between the different airports, I used either REX or FSGRW weather engines. The cloud textures and weather effects were improved by one or many of the following products: Cumulus X, PrecipitFXREX Texture Direct and REX Soft Clouds.

A virtual Dash 7 has just landed in Woitape (WTP) in Papua New Guinea PNG (FSX)
A virtual Dash 7 has just landed in Woitape (WTP) in Papua New Guinea PNG (FSX)

As variety is more fun, and also due to the different challenges created by those runways, the following virtual aircrafts were used: Carenado C-185F,  Lionheart Creations PA-18,  Virtavia DHC-4,  Aerosoft DHC-6 Twin Otter and Milton Shupe DHC-7.

The “Tapini” scenery gives the pilot a choice between the seven following runways:

ASB (Asimba)

A tricky, very short runway near a river.

A DHC-4 Caribou virtual aircraft is on approach for Asimba's sloped runway (ASB) in Papua New Guinea PNG (FSX)
A DHC-4 Caribou virtual aircraft is on approach for Asimba’s sloped runway (ASB) in Papua New Guinea PNG (FSX)

This is a very interesting runway, best done with a STOL aircraft like the Caribou DHC-4. The inhabitants might have to help you clear out some branches along the runway, considering the size of the aircraft. The runway slopes down on take-off, which helps to build up speed.

A DHC-4 Caribou virtual aircraft is on a stopover at Asimba (ASB) in Papua New Guinea PNG (FSX)
A DHC-4 Caribou virtual aircraft is on a stopover at Asimba (ASB) in Papua New Guinea PNG (FSX)
A DHC-4 Caribou virtual aircraft is airborne from Asimba (ASB) in Papua New Guinea PNG (FSX)
A DHC-4 Caribou virtual aircraft is airborne from Asimba (ASB) in Papua New Guinea PNG (FSX)

FNE (Fane)

A one-way, really challenging 12 degree sloped runway, with unpredictable winds.

A De Havilland DHC-7 virtual aircraft on final for the Fane (FNE) airport's sloped runway in Papua New Guinea PNG (FSX)
A De Havilland DHC-7 virtual aircraft on final for the Fane (FNE) airport’s sloped runway in Papua New Guinea PNG (FSX)

The runway sits on top of a hill. It is an amazing experience to land there. No wonder there are a lot of people watching the arrivals and departures.

If you slow down too quickly with an aircraft as big as the DHC-7 on that sloped runway, the twelve degree angle prevents you from moving forward. You must let the aircraft come down the runway very slowly, using the power to control the descent and the rudder to stay aligned on the runway, then apply take-off power for a few seconds to build just enough momentum to get above the hill.

A De Havilland DHC-7 virtual aircraft just finished taxiing uphill on the Fane (FNE) airport's sloped runway in Papua New Guinea PNG (FSX)
A De Havilland DHC-7 virtual aircraft just finished taxiing uphill on the Fane (FNE) airport’s sloped runway in Papua New Guinea PNG (FSX)

To turn the aircraft around, it’s a combination of power and reverse thrust until you clear all the obstacles (any humans venturing behind the aircraft will also be cleared during the operation…).

A De Havilland DHC-7 virtual aircraft is airborne from the Fane (FNE) airport's sloped runway in Papua New Guinea PNG (FSX)
A De Havilland DHC-7 virtual aircraft is airborne from the Fane (FNE) airport’s sloped runway in Papua New Guinea PNG (FSX)

There is a not so friendly man with a rifle watching the airport’s operations. Even the United Nations staff do not stay longer than necessary…

KGH (Yongai)

A very bumpy one-way sloped runway. A real bush aircraft is needed here!

A virtual DHC-6 Twin Otter on approach for the Yongai (KGH) bumpy runway in Papua New Guinea PNG (FSX)
A virtual DHC-6 Twin Otter on approach for the Yongai (KGH) bumpy runway in Papua New Guinea PNG (FSX)

Even with a real bush aircraft, there is a possibility that one of the aircraft’s propellers hits the ground while taxiing on the runway. There are so many deep holes that are hard to see, I can only wish the best of lucks to everyone trying out this airport!

A virtual DHC-6 Twin Otter on the Yongai (KGH) bumpy runway in Papua New Guinea PNG (FSX)
A virtual DHC-6 Twin Otter on the Yongai (KGH) bumpy runway in Papua New Guinea PNG (FSX)

Keep a close watch on the area near the little house at the end of the runway. The DHC-6 was really shaken while turning around for take-off. One of the propellers hit the ground but no problems were detected…until the aircraft was airborne. The fire alarm then went off, just as the aircraft was passing the runway threshold, seconds before flying over a cliff.

A virtual DHC-6 Twin Otter with its right engine on fire is just airborne from the Yongai (KGH) bumpy runway in Papua New Guinea PNG (FSX)
A virtual DHC-6 Twin Otter with its right engine on fire is just airborne from the Yongai (KGH) bumpy runway in Papua New Guinea PNG (FSX)

So much for the planned trip… and it was out of the question to return to Yongai on one engine. I had to pull the handle to stop the fire, feather the prop, cut the fuel where it was not needed anymore then head to the Kokoda airport as it was a sure alternative, having a long runway and an elevation that did not require the use of extra power.

KSP (Kosipe)

A relatively short runway that requires good calculations from the pilot, since it is located high in the mountains.

A virtual Cessna C-185F is enroute to the Kosipe (KSP) airport in Papua New Guinea PNG (FSX)
A virtual Cessna C-185F is enroute to the Kosipe (KSP) airport in Papua New Guinea PNG (FSX)

The Cessna C-185F is a very well suited aircraft for that runway. Make sure not to be too heavy on the brakes, as new C-185 propellers are hard to find in Kosipe. You can land in both directions. Ensure that the mixture is set properly as the airport is above 6300 feet.

A virtual Cessna C-185F is rolling after touching down on the Kosipe (KSP) runway in Papua New Guinea PNG (FSX)
A virtual Cessna C-185F is rolling after touching down on the Kosipe (KSP) runway in Papua New Guinea PNG (FSX)
A virtual Cessna C-185F is airborne from the Kosipe (KSP) runway in Papua New Guinea PNG (FSX)
A virtual Cessna C-185F is airborne from the Kosipe (KSP) runway in Papua New Guinea PNG (FSX)

ONB (Ononge)

A curved and very bumpy runway! For those who like low flying. Make sure you choose the good aircraft here; there is not much manoeuvering area once on the ground.

A Virtual Piper Pacer on approach for the Ononge (ONB) curved runway in Papua New Guinea PNG (FSX)
A Virtual Piper Pacer on approach for the Ononge (ONB) curved runway in Papua New Guinea PNG (FSX)

Ononge looks really scary when you show up on final for the first time. You wonder if the little trail that you see can really be a runway. For that kind of situation, the little Piper Pacer is an excellent aircraft, approaching slowly and braking on a dime. The runway is curved in the middle so you will need a bit of right rudder to keep the aircraft aligned with the runway.

A Virtual Piper Pacer on the Ononge curved runway in Papua New Guinea PNG (FSX)
A Virtual Piper Pacer on the Ononge curved runway in Papua New Guinea PNG (FSX)

I guess all those people with their cargo are waiting for a bigger airplane than mine…

A Virtual Piper Pacer is airborne from the Ononge curved runway in Papua New Guinea PNG (FSX)
A Virtual Piper Pacer is airborne from the Ononge curved runway in Papua New Guinea PNG (FSX)

TAP (Tapini)

A challenging one-way sloped runway nestled in a tight valley. You can even use an ILS to arrive there!

A virtual DHC-4 Caribou on short final for the Tapini (TAP) sloped runway in Papua New Guinea PNG (FSX)
A virtual DHC-4 Caribou on short final for the Tapini (TAP) sloped runway in Papua New Guinea PNG (FSX)

This is a superbly designed area and airport. I visited it with the DHC-4 Caribou but any other big STOL aircraft would have fitted there. There is enough room to manoeuver. It is not too bumpy. There is an interesting slope: it starts downward and ends upward: this helps to slow down the aircraft after landing.

A virtual DHC-4 Caribou on the ground at the Tapini (TAP) airport in Papua New Guinea PNG (FSX)
A virtual DHC-4 Caribou on the ground at the Tapini (TAP) airport in Papua New Guinea PNG (FSX)
A virtual DHC-4 Caribou is airborne from the Tapini (TAP) airport in Papua New Guinea PNG (FSX)
A virtual DHC-4 Caribou is airborne from the Tapini (TAP) airport in Papua New Guinea PNG (FSX)

WTP (Woitape)

Looks like a no brainer, but there is no margin of error on this one-way slightly sloped runway. Very precise calculations and settings are required if you want to land there with something else than a small aircraft.

A virtual De Havilland DHC-7 on final approach for the Woitape airport (WTP) virtual airport in Papua New Guinea (FSX)
A virtual De Havilland DHC-7 on final approach for the Woitape airport (WTP) virtual airport in Papua New Guinea (FSX)

I found the runway to be very slippery with the De Havilland DHC-7. I must say that there was a good crosswind, as I was flying with real life weather and winds. The DHC-7 behaves like a big boat while decelerating on such a runway.

A virtual De Havilland DHC-7 on the ground with two Twin Otters at the Woitape airport (WTP) in Papua New Guinea (FSX)
A virtual De Havilland DHC-7 on the ground with two Twin Otters at the Woitape airport (WTP) in Papua New Guinea (FSX)

The Woitape scenery is gorgeous. It is nice to have all those well designed virtual aircrafts, people and animals on site as this makes the scenery so much more realistic.

A De Havilland Virtual DHC-7 is airborne from the Woitape airport (WTP) in Papua New Guinea (FSX)
A De Havilland Virtual DHC-7 is airborne from the Woitape airport (WTP) in Papua New Guinea (FSX)

I love this new Orbx product. When you fly in such a realistic scenery, the brain does not make much difference between what is real and what is virtual. It really works! And if you use real life weather downloaded from the internet, it’s even better.

I tried the seven airports included in the “Tapini” virtual scenery and they are quite demanding. Yongai was the most challenging airport of them all. I had to do two missed approaches there since I ended up too high on the approach. I eventually got it right, like in real life!

I used the Microsoft flight simulator X (FSX) for all the virtual flights, but other platforms would have worked as well (Dovetail Games FSX Steam edition (FSX: SE) and all versions of P3D). The following products were also installed on my flight simulator: FTX Global, FTX Global Vector and Holgermesh, as well as Pilot’s FS Global 2010.

It is a totally immersive virtual experience and you have to forget everything else when undertaking those challenging virtual flights… if you want to make it “virtually” alive!

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

Categories
Screen captures

A first virtual flight in Papua New Guinea

Twin Otter departing the Jacksons International airport in Papua New Guinea
Twin Otter departing the Jacksons International airport in Papua New Guinea
Twin Otter turning on final for the Kokoda runway, Papua New Guinea
Twin Otter turning on final for the Kokoda runway, Papua New Guinea
Twin Otters parked on the Kokoda airport
Twin Otters parked on the Kokoda airport

Finally,few months after the creation of the AYPY scenery, I can now do a first flight in Papua New Guinea. The complete flight, which consists of thirteen pictures, can be found in the “flight simulation” section above, under “standard virtual flights”. Why “standard”? When we know the degree of difficulty of some Papua New Guinea runways, which are short and hardly accessible, a flight like this one is considered relatively simple and allows the pilots to familiarize themselves in that part of the world. The scenery is called AYPY Port Moresby Jacksons International and it has been created by Ken Hall and Tim Harris, from the Orbx company. Details regarding the flight can also be found in the virtual flight section above. Two words only to describe the experience: totally immersive. Have a good flight!