Thanks for all the replies people, muchly appreciated.
I certainly haven’t done the calculations, but just eyeballing the design it seems like you need a bit more lifting surface on the wings, like maybe 25% to 33% more?
Yes I have been looking at those wings… they do seem a bit slim for what they are trying to support - or perhaps too fragile looking I am not sure. I’ll mess around with the wing widths a bit and see how it turns out.
Designing an aircraft on Blender is intersting, but can hardly happen. There are CAD/CAE applications for this. Of course, you can try to model it as accurate as possible, but Blender isn
tr the right choice. But dont leave it, it can be redone then…
Yes - don’t worry - I totally understand blender is not the tool for developing plans or complete accurate designs of aircraft but thats not exactly what I am after here… what I am using it for is as a sort of … “this is what I am thinking tool”… so I may be halfway through describing this ultra awesome plane concept (perhaps not ultra - :p) and then I will show them this picture and they will be like: “Hey! Thats what hes thinking!” but on perhaps a more serious level. If it were to be used in a pipeline for developing plans for a new type of aircraft I suppose this would be right at the start where the designer gets that bright idea but needs a media to give everyone else his bright idea to get some feedback before going serious.
Alluminum might be too heavy to use it for UL aircraft. Modern planes are made from composites, which are lighter, stronger, can be formed to more extravagant shapes than metals. So I`d chosen composites instead of alluminium.
Hmmm… after some thought that I should have thought about some time ago I would have to agree with you one this one… though what about price (not that it is really important in this case), aluminum would be cheaper. Anyway I’ve chucked it into the To Research pile and will look into it a bit deeper later on. Thanks for bringing it up.
Of course, there are small canard aircraft flying, but not much. This concept might be aerodynamically unstable in some cases. I think, most aircraft have center of gravity in front of the point, where lift is generated, therefore the elevators have negative lift. But on canard aircraft both the main wing surface and the canards generate lift, so the wing surface might be smaller (or weight load of wings lower), which helps to minimize the dimensions.
I seems that the lenght of your design is not sufficent to provide enought stability.
On the other hand, it looks different and unusal.
This is the part of design, where experts at aerodynamics can help, not me.
The aircraft fuselage does`t look sleek to me, now. I seems “fat”, maybe prolonging the fuselege will help.
Something about the canard design when trying to scale it down to ultralight size is that it is hard to make it work like the normal larger designs - one example of this is my current design if made real wouldn’t sit on the ground but tip backwards because the weight of the engine being in the back and nothing to counter it at the front of the aircraft which is a pain… this has been dealt with in real life by simply folding up the front wheel so that its nose rests on the ground which is something I want to avoid in my design. Possibilities for countering it is either having a baggage compartment in the front nose area though thats not really an option because this aircrafts intentions are for sport and not everyone has heavy luggage to take with them when flying - another option is to have an actual counter weight on the nose or built into the front wheel or even nose wings though I am not sure on how that would effect flying.
As for the length… fat looks cool… long doesn’t… thats what it comes down too! No… I am trying to work it out… give me some time and I’ll see what I can come up with.
Fuselage doesn’t look sleek!.. :eyebrowlift2: Well it looks sleek in comparison to the other UL Canards that I have seen.
Thanks for your comments… most constructive and helpful.
Practically speaking, I think you should have the front wheel to avoid burrowing the propeller on landing should you pitch forward.
Sorry? The only way this plane will be ditch is backwards which is highly likely due to its current state of weight balance as explained above.
Thanks all for you comments they have been most helpful!
And now here is a small update of some quick work I have done on the cockpit… just added some seats and the instrument panel… oh and I forgot to mention I believe I can squeeze two people into this thing… what do you think?
And I do see how that wing sort of “detaches” from the fuselage near the engine… i’ll endeavour to fix it up next time.