Landing the BF-109

[Splitter]

Originally Posted by KG26_Alpha

I usually land it the same as a Spitfire in a slow long curve.

Here's some Bf109 landing facts

Bf 109 D:
"The controls, sensitive ailerons, and tail group were fully effective to the time the wheels touched the ground. So much for that."
- US Marine Corps major Al Williams. Source: Bf 109D test flight, 1938.

Me 109 E:
"Stalling speeds on the glide are 75 mph flaps up, and 61 mph flaps down. Lowering the flaps makes the ailerons feel heavier and slightly less effective, and causes a marked nose-down pitching moment, readily corrected owing to the juxtaposition of trim and flap operating wheels. If the engine is opened up to simulate a baulked landing with flaps and undercarriage down, the airplane becomes tail-heavy but can easily be held with one hand while trim is adjusted. Normal approach speed is 90 mph. At speeds above 100 mph, the pilot has the impression of diving, and below 80 mph one of sinking. At 90 mph the glide path is reasonably steep and the view fairly good. Longitudinally the airplane is markedly stable, and the elevator heavier and more responsive than is usual in single-seater fighters. These features add considerably to the ease of approach. Aileron effectiveness is adequate; the rudder is sluggish for small movements.
(Landing) This is more difficult than on the Hurricane I or Spitfire I. Owing to the high ground attitude, the airplane must be rotated through a large angle before touchdown, and this requires a fair amount of skill. If a wheel landing is done the left wing tends to drop just before touchdown, and if the ailerons are used to lift it, they snatch, causing over-correction. The brakes can be applied immediately after touchdown without fear of lifting the tail. The ground run is short, with no tendency to swing. View during hold-off and ground run is very poor, and landing at night would not be easy."
- RAF Royal Aircraft Establishment (RAE) Farnborough handling trials,Bf.109E Wn: 1304. M.B. Morgan and R. Smelt of the RAE, 1944.

Me 109 E-4:
"I established a speed of 200 kmh to enter the downwind leg, 150 at the end of the downwind, a curving final approach aiming to reduce speed to 130 kmh halfway around, 120 kmh with 30 degreed to go to the centreline and a threshold speed of 110 kmh with a dribble of power to stabilise the rate of speed decay.
Compare this with Black 6 (109 G) where I aimed to be at 200 kmh at the end of the downwind leg and not less than 165 kmh at the threshold."
- Charlie Brown, RAF Flying Instructor, test flight of restored Me 109 E-4 WN 3579. Source: Warbirds Journal issue 50.

http://www.virtualpilots.fi/feature/...myths/#landing

That's just good stuff, Alpha. I'll have to try some of those things to see if they hold up with the IL-2 flight models. My pure guess is that at such low speeds I am going to see a wing dip and have trouble, but we shall see.

THANK YOU!

Splitter

[jameson]

I'll just lob a spanner in the works here to suggest that AI 109's E to k have the same landing behaviour and the same landing speed as that of an E4....

[Splitter]

Originally Posted by jameson

I'll just lob a spanner in the works here to suggest that AI 109's E to k have the same landing behaviour and the same landing speed as that of an E4....

Well they are perfect pilots and I am far from it lol.

I did some experiments today and I can land at less than 140kph (or lower) without battle damage. It is a very precise thing though. Too slow and the sink rate goes though the roof while controls get sluggish and the left wing wants to dip.

My problem seems to be grass strips. I can land on a dime on a paved strip, no problem. A curved approach, like landing on a carrier in a Corsair, is the way to go. But you can't plop a 109 down quite as hard as a Corsair or at a similar landing speed (comparing aircraft to aircraft, not speed to speed). That 30 knots carrier speed helps on a Corsair. With a 109, that last bit of approach needs to be very shallow to prevent a bounce and you need some power on it seems.

I am probably being anal about bouncing the 109 a bit. Most of the videos I see of real 109's landing have a bit of bounce. But from my flight sim days, a bounce is bad.

Splitter

[Blackdog_kt]

It might be that you've reached a point where you're "stressing" yourself for no real gain or, to put it in a better way, trying to do better than real life BF-109 pilots. I too have seen a lot of films of restored 109s on youtube that bounce quite a bit on landing. As long as it's a predictable thing that you can control without damage to the aircraft, i'd say it's good enough. In other words, putting in practice the old axiom that every landing you can walk away from is a good landing

On the other hand, if you have set a personal challenge to grease the wheels in a perfect 3 pointer every time, then by all means go along with it and share your findings. As long as the aircraft doesn't break into pieces or endangers other aircraft using the airfield, the rest is a matter of personal preference and setting up fun challenges for yourself to achieve

[kimosabi]

Another thing worth mentioning is throttle and flare. I always have 20-25% throttle and starts to flare a bit just when I cross the fence. If you hover by doing so(you should) just decrease throttle slowly to control the touch down. Actually, when I think of it, I always flare before touchdown. Especially in a 109. A 109 is one of the easiest planes to land IMHO but having lots of hours in it would help, I guess. A spit is much more difficult to touch down.

[WTE_Galway]

Originally Posted by kimosabi

Another thing worth mentioning is throttle and flare. I always have 20-25% throttle and starts to flare a bit just when I cross the fence. If you hover by doing so(you should) just decrease throttle slowly to control the touch down. Actually, when I think of it, I always flare before touchdown. Especially in a 109. A 109 is one of the easiest planes to land IMHO but having lots of hours in it would help, I guess. A spit is much more difficult to touch down.

A lot of aircraft in game need a fair bit of throttle right through the flare when you come in dirty with flaps fully deployed. Its almost impossible to do the classic Cessna "cut throttle on threshold and flare" unless you have no flaps dialed in at all.

As a side note some models of the 190 were apparently not rated for deadstick landings at all, if an engine failed the recommended procedure was to gain as much height as possible and bail.

As a good rule of thumb, designers of aircraft at that time tended to make the recommended final approach speed 30% higher than stall speed (this is now legislated for civilian aircraft) so if you do not know the actual Vref for an aircraft just work out the speed it stalls at and multiply that by 1.3 for an estimate of the historically correct speed across the runway threshold.

[kimosabi]

Yep, but it's not impossible to make a nice and smooth touch down with the "Cessna approach" either. You just have to know the aircraft and how it bleeds in a dirty config. From there you can get a feel on how much speed you need to have when you cut throttle over the threshold. The 109 floats much better than a Spit so it can be done. Actually, I never used to do the 25% throttle over the threshold before. Back then it was always a bit high approach, cut over threshold and flare gently until touchdown.

[baronWastelan]

Originally Posted by Splitter

That's just good stuff, Alpha. I'll have to try some of those things to see if they hold up with the IL-2 flight models. My pure guess is that at such low speeds I am going to see a wing dip and have trouble, but we shall see.

THANK YOU!

Splitter

I just posted a vid 3 days ago showing the low speed landing What do you think? Crossed threshold at under 160 Km/h

http://forum.1cpublishing.eu/showpos...8&postcount=40

[Splitter]

Originally Posted by baronWastelan

I just posted a vid 3 days ago showing the low speed landing What do you think? Crossed threshold at under 160 Km/h

http://forum.1cpublishing.eu/showpos...8&postcount=40

It was good and I incorporated the turn into my landing technique, but I have to "complete" the turn soon to line up on a narrow grass runway. I have also lowered my landing speeds.

Blackdog is also right in that trying to be too precise can lead you to making more mistakes. Case in point, I always try to land just past the threshold to minimize braking. Combine that with trying to be at low airspeed, minimal sink rate, and no bounce....well, it's hard to get it right at that point .

Splitter

[baronWastelan]

Glad u enjoyed my little landing vid. I'm obsessed with landings myself, it's my favorite part of Il-2, esp the bf 109 because it is like what I've read (beautiful). The Seafire on a carrier is also very satisfying!