Fm question: How to set speeds at altitudes - FSIC Messageboard

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Fm question: How to set speeds at altitudes

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Author	Topic: Fm question: How to set speeds at altitudes
Sv Pilot	posted 01-12- 08:02 AM How do you set the max speed of your plane at various altitudes? Right now my SE5a is a dog at low altitude and is a super-plane at high altitude. I have heard that the key is in the prop set up - is this true? So SDOE obviously models air density changes over altitude, right? What aspects of the FM does this effect? I imagine that it effects lift and drag, but does it effect engine performance? If it effects lift/drag than it also effects lift/drag on the prop, right? I am trying to get my SE5a to fly closer to spec. Any hints on what changes are required for what results would be greatly appreciated! Much thanks, ------------------ -Sv =FC= WWI in SDOE! IP: Logged
Tailslide Pilot	posted 01-12- 11:19 AM Step by step instructions are in the FM FAQ on the OPP forum under documentation IP: Logged
Sv Pilot	posted 01-12- 08:14 PM Thanks Tailslide! -Sv IP: Logged
Jaguar Pilot	posted 01-13- 12:08 AM you SHOULDN'T have too much problem with the prop, since you will be creating a fixed pitch prop. The only tricky part is to try and get the right angle of attack and blade twist (can't rember if blade twist is modeled) ------------------ Cheers! Jaguar www.fshangar.com IP: Logged
Tailslide Pilot	posted 01-13- 01:19 AM Blade airfoil, twist, and width is modelled in sections along the length of the blade. IP: Logged
Sv Pilot	posted 01-19- 06:09 AM By the way Tailslide, That FM FAQ is great! The prop section is awesome! I did see it a while ago, but in a quick scan it looks breif - then I relized that the lines don't wrap because it is a txt file heheh. Now I will be able to get my planes much closer to spec!!! Thanks! -Sv IP: Logged

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