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  30.3k ChiChiWerx

  Ok, yes it is still flying strangely, because we are not done with it yet. When you give comments on how it is flying, can you please tell me the speed and altitude where you see the behavior and the maneuver that you're flying, i.e., "I was flying at 500 knots indicated airspeed and 20,000 feet and turning hard." It would be very good if you can use the Developer Console and use the command "DebugExpression Vertical G" and also note the Gs you are pulling in any turn.

  Hopefully, what results is that I teach you a few things about how real aircraft fly, I show you how I would model that in SP and then your future builds will have excellent flight models!

  +0 one year ago
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  14.1k WEEB

  @ChiChiWerx I am currently working on creating a non-realistic version. which I have roughly collected most of the details If it is complete I will upload it to the website.
  But you can still make changes to your latest one. When it's done I will keep the details again. and upload to the website But I'll give you credit. What do you think?

  +0 one year ago
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  14.1k WEEB

  @ChiChiWerx Recently I test-flighted this version. I feel like it's flying strangely. There was more bobbing than I did. That's probably because you didn't completely

  your second section on weight and fuel. You can modify Let it be realistic. But consider long flights. and add air fuel as well

  In your 4 topic about unrealistic speeds. we will fix it But it has to go to Mach 10 and I want it to have a scramjet system as well. That would be great. If not, that's fine.

  Yes, I will build my own landing gear.

  I am from Thailand The local language is Thai. Now I use Google Translate to read all the English text.

  All that being said, I have a feeling that you will be doing a lot of modifications to this aircraft. Which I hardly did anything at all, I b considerate

  +0 one year ago
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  30.3k ChiChiWerx

  I have continued working on this build this past week, but I have not posted the latest version yet for you to see because I wanted to discuss with you how you would like to proceed:

  1. I have two speedbrakes on the latest version of your build, the first deploys at less than 50% thrust and the second at less than 25% thrust. This allows the aircraft to slow down and land.

  2. I strongly prefer realism in my builds, so I never use unlimited/unrealistic fuel hacks. The latest version I am working on attempts to eliminate your zero-weight fuel hack and substitute fuel that actually diminishes as you fly and results in an airplane that gets lighter as you burn fuel--this is realistic. Please let me know what you think.

  3. Your build is WAY too heavy. This airplane is 2/3 the size of an SR-71 and just slightly larger than an F-22. IRL, this jet would be around 40,000 - 50,000 lbs (18,000 - 23,000 kg) empty and 80,000 - 90,000 lbs gross (full of fuel) (36,000 - 41,000 kg). Also, the wing loading is really heavy, which makes for very fast takeoff and landing speeds. Last, I believe the high weight is making problems flying at real life realistic altitudes (above 60,000 ft/20,000 meters), where it should fly well. I have tried to reduce the weight and substitute realistic fuel, but I'm having trouble finding all the heavy parts and reducing the weight. I am currently down to 101,000 lbs (46,000 kg), but I only have 1,800 gallons (6,800 liters) of fuel on board. I need to try and further reduce the weight and substitute fuel to get it to a realistic weight.

  4. Your plane accelerates WAY too fast! Completely unrealistic! No airplane, I don't care how powerful it is, takes only 3.5 seconds to take off. You're using power multipliers which affect acceleration. Again, we can fix this, but it will take time and work to do so.

  5. Are you planning on building custom landing gear? If not, the stock landing gear is almost completely ineffective at braking, which is a big problem.

  6. What country are you from and what is your native language?

  +1 one year ago
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  30.3k ChiChiWerx

  @WEEB

  +0 one year ago
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  30.3k ChiChiWerx

  @WEEB Ok, this is a very rough flight model, it still needs a lot of work, but I want to show you a few things first:

  THIS MODEL IS BEST BELOW 1,000 KNOTS. I NEED TO WRITE A FORMULA TO REDUCE CONTROL DEFLECTION AT HIGHER SPEEDS. Fly it using partial thrust first at slower speeds.

  1. I started over on all the wings, I used a canard layout because it is easier to make SP builds fly correctly if they're canards or conventional layouts. Simpler is better in SP!
  2. I used SYMMETRICAL airfoils. High speed aircraft use SYMMETRICAL wings...Cessnas use cambered airfoils. Yes, these wing shapes are different in SP.
  3. I sized all flying surfaces .1x.1x.1. You must use the same scale on all flying surfaces to make builds fly correctly.
  4. I tried to make the build have approximately 1,000 sq ft of wing. More wing makes it fly more easily, but in RL, high speed jets usually have small wings and high wing loading. We can try more wing area, if you would like.
  5. You need more drag, the jet flies well above 300 knots, BUT DOES NOT SLOW DOWN. It is almost impossible to land! More drag is required. There are many ways to fix this.
  6. You have way too much thrust and it accelerates way too fast. That is because of the 3x thrust multiplier. Again, this can be fixed.

  What do you think? Any feedback for now? I can keep working on it if you would like.

  +0 one year ago

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