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DCS P-51D QUESTIONS


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There is a landing tutorial, which comes with the P-51, which coincides with the DCS manual.

 

One caveat with it, is that if you are not really completely comfortable with flying the P-51 low and slow, following what you learn in the tutorial might be more stressful than need be, bc you might not have enough room on the final approach.

 

In case you haven't taken the tutorial yet, the basics for a three-point landing are:

 

- Fly in over the runway on which you will land in the direction you will be landing at about 300-400 feet and about 200-250 kts.

 

- Upon reaching the 3/4 of the runway, peel off to the left and climb to not more than 1000 feet in order to bleed off speed, and enter the down-wind leg.

 

- Throttle back and set RPM to 2700 (you don't want to go higher than 2700, bc if you have to break off, the higher your RPM the greater the torque you will experience when accelerating the motor and the more difficult it will be to maintain control over the aircraft). You now start your approach descent. You want to be descending, but also continue to lose speed --both moderately. Your goal is to reach the threshold of the runway (where the zebra stripes are) at about 100 kts and be about 10 feet above the runway.

 

- Extend your down-wind leg, as far as you are comfortable with. The further past the start of the runway you extend, the more room you have to line-up with the runway, but the slower your descent must be. You will have to learn how to evaluate altitude, speed and distance to the runway threshold so that you reach the threshold within the landing envelope I have described.

 

- Near the end of your down-wind leg you should be not faster than 160 kts. Lower the undercarriage, and then the flaps fully, and turn into the up-wind leg and final approach. If your descent is too great, add throttle as necessary. Ram air lever to filtered air. Landing and running lights on, depending on the situation.

 

- On your final approach your speed and rate of descent should be stable so that your reach the threshold at 100 kts and about 10 feet above the runway.

 

- At the threshold, pull the nose up just only enough that you do not gain any altitude and do not immediately stall. You wings must be absolutely horizontal so that both forward landing gear touch down simultaneously. Do not worry if you over-shoot the threshold while getting into this position if you are a little too fast. You have more than enough runway to land comfortably.

 

- At about 10 feet above the runway, ease off the throttle. You will lose speed further and and settle onto the runway. You should not touch down so hard that you bounce at all. If you drop too fast, it will be difficult to hold to the center of the runway.

 

- Once you have touched down, remove all throttle and smoothly pull the stick back all the way. Gently use rudder (tail-wheel steering) to maintain the center of the runway. Do not worry if you come a little off center-line (not more than an aircraft wingspan). You don't want to make any too sharp steering inputs, which can easily cause you to dip a wing and lose control. It is better to use the full width of the runway and take a couple hundred yards to even out, than to lose control.

 

- Decelerate to taxi speed. RPM to 3000 to ease stress on the engine. Taxi to nearest exit from the runway, and proceed to your parking spot.

 

That's it. Practice is the key. LOTS of practice.

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When you hit the wrong button on take-off

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yes thank you guys for answers, captain, I have done the landing tut a few times but as I said there is no mention in the tutorial or manual about locking the rpm and I think isn't tht the only way to keep the rpm high and the manifold lower?

I still have found it easier to land the reapers way as I would with any other plane, but yea she is very twitchy to increases in throttle when slow.

I think as you say the key here is obviously practise, and not concentrate on manifold pressure as much as rpm, its the bounce that's worse for me, is that generally to quick descent?

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hello

It's very simple if you do it right, do not look for an automatic solution, there is none.

It is enough to go down to the beginning of the track with a rate between 500 and 1000 feet per minute and a speed between 150 and 100 mph.

Once as low as possible above the runway, pull the handle gently and hold.

If you have too much speed the plane will go up, if you have not enough it will collapse.

Learn how to do this until you find the right speed for the plane to land. That's it.

 

http://cromhunt.proboards.com/thread/367/spitfire-practice

http://cromhunt.proboards.com/thread/346/dcs-world-crosswind

http://cromhunt.proboards.com/thread/342/weird-warbirds-landings

 

Do this with any warbirds in DCS, and you'll see that after a little practice you will not even look at the instruments, so the parameters

 

see you next


Edited by cromhunt
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Probably a typo...

 

No, not at all. With the RPM lever set fully forward, and the throttle at or near idle, the AoA of the propeller blades are at their shallowest and the actual RPM will be very low (far below 3000).

 

This allows for the least stress on the engine, allowing for the lowest temps while taxiing and idling.

When you hit the wrong button on take-off

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System Specs.

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System board: MSI X670E ACE Memory: 64GB DDR5-6000 G.Skill Ripjaw System disk: Crucial P5 M.2 2TB
CPU: AMD Ryzen 7 7800X3D PSU: Corsair HX1200 PSU Monitor: ASUS MG279Q, 27"
CPU cooling: Noctua NH-D15S Graphics card: MSI RTX 3090Ti SuprimX VR: Oculus Rift CV1
 
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yes thank you guys for answers, captain, I have done the landing tut a few times but as I said there is no mention in the tutorial or manual about locking the rpm and I think isn't tht the only way to keep the rpm high and the manifold lower?

I still have found it easier to land the reapers way as I would with any other plane, but yea she is very twitchy to increases in throttle when slow.

I think as you say the key here is obviously practise, and not concentrate on manifold pressure as much as rpm, its the bounce that's worse for me, is that generally to quick descent?

 

I don't know what the reaper's way is. I know that every time you change the RPM you change the torque, which means you have to compensate with rudder and aileron input. You have some torque change with MAP, but not as much as with an RPM change.

 

You don't fly by fixed settings written in a book in an ever changing situation. You fly the aircraft according to the momentary situation. If your descent to too great, you add throttle, not RPM.

 

You set RPM to the task at hand. If you set the RPM too low on approach, it will be more difficult to accelerate if you need to, and if you have to break off your approach you will have to adjust RPM and MAP at the same time, while trying to maintain control. If you have to go around and need to apply power RIGHT NOW you are wasting precious time having to change one after the other, plus you have to compensate for two different energy changes, while you are trying to get out of a dangerous situation, where you are very low and near stall speed. Setting RPM to 2700 allows you ample access to power if you have to go around, and to land. It's as simple as that.

When you hit the wrong button on take-off

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System Specs.

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System board: MSI X670E ACE Memory: 64GB DDR5-6000 G.Skill Ripjaw System disk: Crucial P5 M.2 2TB
CPU: AMD Ryzen 7 7800X3D PSU: Corsair HX1200 PSU Monitor: ASUS MG279Q, 27"
CPU cooling: Noctua NH-D15S Graphics card: MSI RTX 3090Ti SuprimX VR: Oculus Rift CV1
 
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No, not at all. With the RPM lever set fully forward, and the throttle at or near idle, the AoA of the propeller blades are at their shallowest and the actual RPM will be very low (far below 3000).

 

This allows for the least stress on the engine, allowing for the lowest temps while taxiing and idling.

 

 

You wrote "RPM to 3000". That's why I was mentioning it. :music_whistling:

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You wrote "RPM to 3000". That's why I was mentioning it. :music_whistling:

 

Yes, while on approach you use 2700. On the ground you use 3000 for the reasons I've mentioned.

When you hit the wrong button on take-off

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System board: MSI X670E ACE Memory: 64GB DDR5-6000 G.Skill Ripjaw System disk: Crucial P5 M.2 2TB
CPU: AMD Ryzen 7 7800X3D PSU: Corsair HX1200 PSU Monitor: ASUS MG279Q, 27"
CPU cooling: Noctua NH-D15S Graphics card: MSI RTX 3090Ti SuprimX VR: Oculus Rift CV1
 
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There is a plate by your right elbow that shows you the parameters for basic flight with regards to pitch and pressures - basic cruise, climb, max cruise, max continuous, etc.....

 

I use the pitch adjustment on a button on my throttle, and then fine tune it if I need to with the mouse and cockpit in the lever. Seems to work fine for me. As a rule I go full pitch as part of my landing checklist, once my gear is out and I am configured for landing with flaps my pitch goes to 100% while the throttle is at idle. Once I need to advance the throttle I do so, you won't overheat anything because you won't need much as your pitch is maxed out. Once you are at the 90 and turning to final you'll be nose down descending and won't need much throttle at all.

 

If landing is where you struggle I suggest making a Corsair carrier style approach, that way you can see over the nose until you roll out wings level over the threshold.

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ok, just a silly one as still pretty new to the stang, how are you using diff speeds for rpm/manifold, as mine work together, and can only lock the rpm lever so is that what you do or is there a setting I have missed in options

 

ummm :huh: I have two different levers, one configured for the throttle, one for RPM (Thrustmaster Warthog HOTAS Throttle controller).

When you hit the wrong button on take-off

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System Specs.

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System board: MSI X670E ACE Memory: 64GB DDR5-6000 G.Skill Ripjaw System disk: Crucial P5 M.2 2TB
CPU: AMD Ryzen 7 7800X3D PSU: Corsair HX1200 PSU Monitor: ASUS MG279Q, 27"
CPU cooling: Noctua NH-D15S Graphics card: MSI RTX 3090Ti SuprimX VR: Oculus Rift CV1
 
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8<

 

If landing is where you struggle I suggest making a Corsair carrier style approach, that way you can see over the nose until you roll out wings level over the threshold.

 

I had lots of trouble in the beginning, not being able to see over the nose. Learning to land is difficult enough. Doing a curved approach as a learning would just make everything much more difficult YMMV.

 

I did two things, for takeoff and landing I raise the seat <LShift><LCtrl><NUM8>, returning to my saved default setting with <NUM5>.

 

And I did only steep landing approaches where I could see the runway clearly. Basically with wheels and flaps out and near 20-25 MAP, which is actually negative boost, for most of the approach. To quote Eric Idle in Monty Python and the Holy Grail, "I got bet'er". ;)

When you hit the wrong button on take-off

hwl7xqL.gif

System Specs.

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System board: MSI X670E ACE Memory: 64GB DDR5-6000 G.Skill Ripjaw System disk: Crucial P5 M.2 2TB
CPU: AMD Ryzen 7 7800X3D PSU: Corsair HX1200 PSU Monitor: ASUS MG279Q, 27"
CPU cooling: Noctua NH-D15S Graphics card: MSI RTX 3090Ti SuprimX VR: Oculus Rift CV1
 
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My old Cougar won't map the radar and range dials to the RPM lever (pitch). I have used the dogfight switch OK so far but it is not accurate and the click actually gets in the way of momentary on off which you need for precise control. Maybe I should swap speed brake for rpm and dogfight for flaps? That will mess with my Sabre habits. Got 4 or 5 kills so far. Finally one with a Russian Dora. How do we change coalitions in the Mission Builder again? Germany keeps coming up as allied to USA.

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It's perfectly ordinary banter Squiffy, "Bally Jerry, pranged his kite, right in the 'how's your father.'" - Monty Python, RAF Banter Sketch.

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@Squiffy

 

Germany is setup as 2 countries.

 

Germany

and

Third reich (for WW2 units)

 

You must set coalitions when you start building the mission. There may be a way to flip a countries coalition, but I think it still requires a mod outside the ME.

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How do we change coalitions in the Mission Builder again? Germany keeps coming up as allied to USA.

You must set COALITION PRESETS to WWII during New Mission Settings on "page" where you chose map.

It is pre-set to "CUSTOM" where Germany is with USA, just chage it.

F-15E | F-14A/B

P-51D | P-47D | Mosquito FB Mk VI |Spitfire | Fw 190D | Fw 190A | Bf 109K |  WWII Assets Pack

Normandy 2 | The Channel | Sinai | Syria | PG | NTTR | South Atlantic 

F/A-18 | F-86 | F-16C | A-10C | FC-3 | CA | SC |

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Awesome thanks guys Happy New Year. Work and crash at home for me. DCS too ;)

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It's perfectly ordinary banter Squiffy, "Bally Jerry, pranged his kite, right in the 'how's your father.'" - Monty Python, RAF Banter Sketch.

Squiffy, a. slang. 1. Intoxicated; drunk. 2. Askew, skew-whiff. - OED

 

"Put that sucker in a 4G turn and keep it there!!" - Maj. Gen. "Boots" Blesse

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  • 3 weeks later...

7th AF Mustangs flew at 10000ft from Iwo to Tokyo, they flew 210MPH IAS (because of B-29 minimal speed for sufficient engines cooling).

They used "special" engine setting, low RPM with hight MP, do not remember exact value.

Have book home where it is written.

 

And they had 110 gallons external fuel tanks (165 gallons when they flew with 6 HVARS), we have only 75 gallons here in DCS...

F-15E | F-14A/B

P-51D | P-47D | Mosquito FB Mk VI |Spitfire | Fw 190D | Fw 190A | Bf 109K |  WWII Assets Pack

Normandy 2 | The Channel | Sinai | Syria | PG | NTTR | South Atlantic 

F/A-18 | F-86 | F-16C | A-10C | FC-3 | CA | SC |

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I believe there was a B-29 "Mothership" they followed back and forth, which had more sophisticated nav equipment than they did. At least I've read it was like that once before but I don't remember it in detail.

9./JG27

 

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Hi,

every fighter units involved in VLR had assigned navigation B-29. They met them after take off from Iwo, just North of island and followed them until they joined the bomber formation which they should cover over Japan. This meeting with bomber formation happened just few miles from Japan shore.

 

Way home started at Rally Point, south of Tokyo Bay where all fighters (and lost, damaged bombers) flew first to met others and put together before flight home. Fighters met their navigation B-29s here. From this point they started flight home.

Navigation B-29s circling above Rally Point had own fighter escort and they waited there as long as possible.

Fighters pilots in trouble just asked any B-29 for help (and all helped) with travel home and they led them home in that case.

 

Fighter pilots did not always find any B-29 for some reason and then they had to flight home alone, and they did it! 660 miles from Tokyo to Iwo only with magnetic compass above endless sea!

 

Rules was when fuselage tank was empty, they immediately headed to Rally Point and search for way home to Iwo. Yes, they fought against IJA a IJN with fuel in fuselage tank!

 

Several destroyers and submarines were along route, plus P-61 from Iwo helped during return to find the last part of their way.

 

After UncleDog was introduced several B-29 was equipped with beacon and one was installed at top of Suribatchi on Iwo. But it was useful only with range up to 150 miles.

This was only radio aid used for navigation.

 

The most dangerous enemy was weather, it caused the majority of all loses, include the 1 June 1945 Black Friday disaster.

 

Navigation chart was generally simply, North to target and South to home...

%5Bimg%5Dhttps%3A//i.imgur.com/KWtWPWl.jpg[/img]

 

ETiRLEm.jpg

F-15E | F-14A/B

P-51D | P-47D | Mosquito FB Mk VI |Spitfire | Fw 190D | Fw 190A | Bf 109K |  WWII Assets Pack

Normandy 2 | The Channel | Sinai | Syria | PG | NTTR | South Atlantic 

F/A-18 | F-86 | F-16C | A-10C | FC-3 | CA | SC |

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Does dcs has ricochet effect with 50.cals? Was testing out the mustang on ground target and didn’t see any

 

it did in the past no clue whats up now, maybe bug or maybe ground surface dependent?

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I always wondered how they did that. Dead Reckoning over hundreds or thousands of miles is very demanding, navigation skills wise. Thank you for the info's. it makes sense with the B-29s with the beacon, kind of the precursor to Tacan A/A mode to guide the Fighters. :thumbup:

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Interesting stuff about the navigation.

 

I have a question....

 

During startup, why does the engine sputter with the mags OFF? It won't run, of course, but it will sputter which means ignition...which shouldn't happen with no spark?

 

Bug?

 

Or could it be this low octane fuel you guys talk about??? (joking about the fuel)

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