Houndpup Rc
Well-known member
Yeah! I know @Mr Man really wants one. lollooks like a really fun project that net a really cool plane.
Yeah! I know @Mr Man really wants one. lollooks like a really fun project that net a really cool plane.
I believe their are programs that will allow you to wind tunnel test your model.as for updates i tried to do the lift test but i realised i had no way of checking the results so i will try again tomorrow. I also added some really low walls out of sheetmetal in an attempt to atleast hinder the pressure from going around the side altough honest i doubt it will do much.
Im also looking at the final decision for esc and edf and im currently heavily leaning towards this one with the 3500kv and an included esc just to make life easy. altough im not a big fan of the start ducting of the fan but i think ill either let it be or sand if off.
do you have any suggestions on sowftware to help me design a better wing?Orville and Wilbur tested on a bicycle. Your "fences" will stop the tip losses, but a bigger wing works better even without the fences. Look up aspect ratio. Use software to assist your design questions, not to do the design. (Steps off soapbox). I asked if you have flown because until you see a stall, you dont know if the wing is stalled or flying funny and how to fix that. Aero engineers have a saying " everything will fly if you have enough thrust" thats true, look at helicopters, quad drones, and rockets.
When I get good enough at FreeCAD my big goal is the SR-71 Blackbird! I want it to be like the FT master series though.
Yeah, but I think it would've been better if it was bigger.That's won't help you solve the problem. You need to look at all the aspects when designing a plane. The Wart-Hog, DarkStar , F-117 are a few. If you look at HH SR-71, they use a FC to get it to go and still wobbles in flight.
whats not going to help me solve the problem?That's won't help you solve the problem. You need to look at all the aspects when designing a plane. The Wart-Hog, DarkStar , F-117 are a few. If you look at HH SR-71, they use a FC to get it to go and still wobbles in flight.
Stress.whats not going to help me solve the problem?
What kind of stress? lolStress.
HAHAHA!What kind of stress? lol
Things like this. I gave you the answer, so build it. Remember no rudders allowed.whats not going to help me solve the problem?
He answered you on post #35@NeonGreen have you ever flown before?
Ah, I must've missed it, thanks! Post Deleted.He answered you on post #35
In general, you need a good understanding of the theory before software will be much use. You can get software to give you an answer, but unless you know the theory the answer it gives you will most likely be fairly wrong. Probably the easiest software to use is XFLR5 since it fully integrates every step of the analysis and has a relatively clean and easy to use GUI. It's also free which counts for a fair bit.do you have any suggestions on sowftware to help me design a better wing?
yeah, tried to use XFLR5 but it just kept giving me errors and so i kinda gave up on it because i think what i have is good enough just.In general, you need a good understanding of the theory before software will be much use. You can get software to give you an answer, but unless you know the theory the answer it gives you will most likely be fairly wrong. Probably the easiest software to use is XFLR5 since it fully integrates every step of the analysis and has a relatively clean and easy to use GUI. It's also free which counts for a fair bit.
That said, the best way to learn is trial and error. Something to keep in mind is that engineering tools only answer the questions you use them to answer. If you have an aerodynamically amazing plane that can't hold itself together structurally, you don't have a working plane. So, learning rules of thumb is very important if you don't want to get stuck in analysis paralysis. As far as a first jet goes, the Gripen isn't a bad planform. The combination of the canard and delta wing should give it pretty gentle stall. That said, jets aren't good first planes as others have mentioned. Definitely get the guy you mentioned to try and fly it first.xflr5
www.xflr5.tech