EVERYTHING that is made in Planemaker determines how the aircraft will fly in sim. When making a flight model in Planemaker, a developer almost always starts with the aircraft shape. It's broken down into several sections. Fuselage, airfoils, gear doors, landing gear, etc. The fuselage is made up of several sections. Up to 20 can be used. These sections are like cross sections and have adjustable points on them to make a round fuselage (Airliner) or a GA fuselage (more square). A point can be pushed in or pulled out and x planes flight model recognizes this and drag is produced accordingly. This drag is visible when turning on X Planes aerodynamics visuals in sim. They are represented simply by flowing lines of different colors. Green lines represent smooth airflow, Orange represent disrupting airflow, Red represents rough airflow.Because of this, VOR aerials, COMM antennas, etc...when modelled in Planemaker, all affect the flight model to some degree when in sim.I'll try to get a screenshot up sometime today or tomorrow.I have a perfect example of a Hawker 4000 I'm making and the landing gear wasn't modelled correctly in Planemaker. One wheel actually goes through the wing and can be seen on the top side of the wing. There are a bunch of red lines around the protruding wheel. The other wheel is in the correct position and as a result, the aircraft is yawing to one side because of the drag.

Question about plane maker. The RVs that come with X-Plane 9.....................balloon up like a Cessna, when flaps are deplyed. The RVs actually pitch down. I was told that this is something the designer has control over to switch from pitch up to down. I can only assume that "plane maker" isn't making the proper pitch determination on it's own. Therefor, you would have to know what the real flying aircraft is doing...........in order to properly simulate it. L.Adamson

Question about plane maker. The RVs that come with X-Plane 9.....................balloon up like a Cessna, when flaps are deplyed. The RVs actually pitch down. I was told that this is something the designer has control over to switch from pitch up to down. I can only assume that "plane maker" isn't making the proper pitch determination on it's own. Therefor, you would have to know what the real flying aircraft is doing...........in order to properly simulate it. L.Adamson

Like I mentioned in an earlier post, Planemaker can NOT simulate everything accurately using just default values. There are so many different aircraft out there with an infinite amount of variables, that some developer input is required. In saying this, if the developer has all the correct figures for the flaps and the wings (Co-efficient of Lift, Co-efficient of Parasite Drag and Co-efficient of Moment), the flight model can be as realistic as the developer wants it to be when deploying the flaps. AFAIK, all the default aircraft use DEFAULT Planemaker variables without adjusting the above mentioned figures. So each co-efficient variable will almost always be wrong. Same with the radii of gyration. Letting Planemaker use default values will yield unrealistic results. All these variables are adjustable and have been made that way by Laminar because it is unrealistic to assume that Planemaker can model every single aircraft ever in the history of aviation with just planemaker default values. Planemaker does a semi decent job by giving default values in that a beginner can get an aircraft in the air, but the fine tuning and accuracy is several steps further.An example of this is the Beech Duchess I made. Default flight model was way too sensitive and when deploying flaps would cause the nose to pitch up...sometimes violently. After getting the correct figures from the documentation I have, I set the co-efficients, radii of gyration and phase-out figures, re-loaded it and it flew perfectly.

I'll try to get a screenshot up sometime today or tomorrow.I have a perfect example of a Hawker 4000 I'm making and the landing gear wasn't modelled correctly in Planemaker. One wheel actually goes through the wing and can be seen on the top side of the wing. There are a bunch of red lines around the protruding wheel. The other wheel is in the correct position and as a result, the aircraft is yawing to one side because of the drag.

I'd like to see that.

LA, made you a modified RV6 that pitches down a while back, maybe you missed it;Spent about 5 minutes fixing a couple of things, try it out http://www.xplanefreeware.net/morten/DIV/RV6mod.zip Many aircraft also pitch BOTH up and down depending on flap setting - like a 737. You are right that you have to know the pitching property's of the aircraft you are making.But trust me, the alternative, giving X-Plane the information it needs to calculate it correct on it's ownis about 1000 times more difficult. Would take me half the evening explaining why. Basically It's just notpractical and to much information needed that no-one knows.

LA, made you a modified RV6 that pitches down a while back, maybe you missed it;Spent about 5 minutes fixing a couple of things, try it out http://www.xplanefre.../DIV/RV6mod.zip

I'll check it out, in the next couple of days. L.Adamson

I'll try to get a screenshot up sometime today or tomorrow.

Some problem with it?

Some problem with it?

Yes. I can't find the screenshot and I don't really have time to adjust the flight model and open it up in X Plane just to show you. But here's a screenshot from the x-plane.com web site that shows the airflow around the aircraft. Landing Gear extended. Green airflow around the streamlined areas, red airflow around areas that cause drag (the landing gear).

Yes. I can't find the screenshot and I don't really have time to adjust the flight model and open it up in X Plane just to show you. But here's a screenshot from the x-plane.com web site that shows the airflow around the aircraft. Landing Gear extended. Green airflow around the streamlined areas, red airflow around areas that cause drag (the landing gear).

Can you clarify what it's actually representing?

Can you clarify what it's actually representing?

i can answering ..nothing much!

i can answering ..nothing much!

Of course you think nothing is happening, Tierborn. FSX doesn't show laminar airflow around an aircraft.You seem to be spending a great deal of time in a forum for a product that you dislike. Perhaps a World of Warcraft forum would be more suited to your liking. mgh, I explained what is happening in the post I made with it. if you want FURTHER clarification, http://x-plane.com/p...de_X-Plane.htmlTierborn, feel free to read it as well. You might actually learn something seeing as your last comment gave me an indication of your intelligence level.

Of course you think nothing is happening, Tierborn. FSX doesn't show laminar airflow around an aircraft.You seem to be spending a great deal of time in a forum for a product that you dislike. Perhaps a World of Warcraft forum would be more suited to your liking. mgh, I explained what is happening in the post I made with it. if you want FURTHER clarification, http://x-plane.com/p...de_X-Plane.htmlTierborn, feel free to read it as well. You might actually learn something seeing as your last comment gave me an indication of your intelligence level.

you should be banned for that personal attack .....

you should be banned for that personal attack .....

What personal attack are you referring to?Oh, the "intelligence level" statement? Well, if you actually KNEW what you were talking about, regarding x plane, you would have stated facts, instead of stating "i can answering ..nothing much! "I think it's about time you stopped trolling these forums before I report you...AGAIN.

mgh, I explained what is happening in the post I made with it. if you want FURTHER clarification, http://x-plane.com/p...de_X-Plane.html

I'm afraid you didn't. The figure shows coloured conical shapes generally extending radially from the aircraft. What do they physically represent?

I'm afraid you didn't. The figure shows coloured conical shapes generally extending radially from the aircraft. What do they physically represent?

"Green airflow around the streamlined areas, red airflow around areas that cause drag (the landing gear)." Yes, I did. Please go to the link I provided. It's further explained there.

What personal attack are you referring to?Oh, the "intelligence level" statement? Well, if you actually KNEW what you were talking about, regarding x plane, you would have stated facts, instead of stating "i can answering ..nothing much! "I think it's about time you stopped trolling these forums before I report you...AGAIN.

I am participating in the forum .. just as ne1 else .. you attacked me and you are going to report me ..... not clear?? You get to judge my responses ... and you called me a troll .... feels like you are attacking me! As a commercial member you should be held to the highest standard.