airnico

here a quote from a previous discussion: and of course someone is doing something in that direction, check this: http://www.reaa.ru/cgi-bin/yabb/YaBB.pl?num=1158383728 but if you look at the infinity 1 you'll find a straight canard just like ours. a new and faster airfoil would be a possible way(it has already been done once) but it would be a looong way to go through and who can do it? how effective would be a swept canard in your opinion?

if you refer to the 460 mph you can translate it to 400 kts but I have no idea about the use of the starship's airfoil.

slats allow a higher AoA, the wings have less incidence than the canard, so why to allow the wings to fly at a higher AoA if the canard has already stalled?

it has been said that the Roncz canard could have a critical mach # of 380 mph so I was wondering what kind of canard JD is using to fly so fast. you're right Lynn, claimed means something different than proven, but if JD claims for 460mph he has probably some reasons to do it, or is he simply not afraid of being claimed for a dreamer? Rydogg check the infinity 1 page and you'll find that if you want to have it you have to send 1000$ deposit and when the missing 500K$ will be collected they'll start building your plane. I actually am not going to do it, but would like to realize how they can(or want or hope....) build a so fast canard aircraft: is it possible to find an airfoil able to fly so fast and also to land at a realistic speed? if the answer is yes, why do we continue building roncz??

the infinity 1 is claimed for a Vne of 460 mph: do they use a different canard?

I have read on the forum that leading edge devices cannot be used on the roncz 1145 because being this a laminar flow airfoil it is not compatible with them. may you please give me more details about this topic? I would like to understand how the laminar flow is modified by a leading edge device and what happens in this case.

I can't understand exactly: do you mean that you have built the fuselage's sides and bottom separately (layup per plans?) and then attached them with 4 ply(bid ?)?

Tomwang, your one-piece(the bottom part is one piece) rounded fuselage look very interesting, I really would like to know what is your layup schedule. I suppose you made the 4 pieces from molds: may you talk me about how you arrived to this shape(wooden plug, foam modelled plug or what else) and how you are going to glass it?

is there anybody who has the berkut video infopack? they do not sell it anymore.

this is exactly the problem I was referring to: to build a good shaped naca inlet is not a huge problem, you can find detailed documents from NACA aerodynamic research made in 1948/50(required lenght, depth, lip and so on). matching the engine air flow requirement to the naca recovery ability is a bit more difficult for me. the guy with the IO360 has his inlet behind the prop, mine is on the other side..... who wants to suggest me??

hello guys, I'm wondering:confused: about the right size of a naca inlet to feed my engine and actually I'm finding that a naca scoop is not just a scoop, there is a lot of math behind it. this guy http://www.melmoth2.com/texts/NACA%20inlet%20sizing.htm is feeding his IO360 with a 4 inches scoop: his math seems to be reasonably but the scoop seems(to me) to be very small, what do you think about it?

thank you guys, I did not figure out that "Wayne's world " is the world of Wayne Hicks.

does not alodine have "primer capabilities" itself?

sorry but if I search "Wayne's World" the only result is the famous movie..... no other indications??

Tom, May you post some pics of this procedure please?

kent, what is the yellow stuff inside the bow?is it foam?

searching on the forum I've found this: is it not something like the mod I was talking about??

hello Tomwang, how did you build the mold?cnc machined? can you show me a picture of your mold and bow?

it would not be difficult to build a molded C-section spar and autoclave it, something else would be to build a box shaped spar: it would be difficult and very expensive. I like the solution they have found to produce an easier(and so cheaper) molded spar and the added fuel capacity resulting from it could be also a good thing.

yes, ok the spar on Long_Ez is plans built, but there are some guys out there building something that is not strictly per plans, may be one of those bad guys have already done this mod and it could be just another to add to the mods list....

yes, we actually do not like that so much. I think it would be more or less 5 gallons each tank: may be it could be acceptable if you don't have already a lot of ballast in the nose..... I suppose it was a glass roving used as a reinforcement with who knows how many layers of glass cloth.... it would be actually very interesting to know it: does anybody know it?? does anybody know if this kind of center section spar has been already installed in a Long?

+9/-7 not bad......

so there is foam inside.... the horizontal faces look to be very thin: is there foam only in the vertical part or is all the structure a sandwich? do you know exactly how it is made?how many layers and what kind of fiber? I know they use biax fiber for the fuselage and not a lot of layers, can you give me more info about the velocity structure please? the way they build the center spar is attractive, it's of course easier and faster to be built and it gives more space for fuel: it would be really interesting to make a load capabilities comparison between this one and the Long-Ez's

hello canardians, I found this picture somewhere on the web and was attracted by the center section spar shape: it's not a box shaped spar like the long-Ez's, but it's a C section. I did not know this before so it was a surprise for me. do you know if this kind of center spar(C section) is used only on the velocity or if some other models have it? looking at it I can see the brown colour of foam(I suppose it's the foam's colour) so it should be a glass fiber/foam sandwich structure: am I right? do you know if it's a moulded part that comes prebuilt in the kit or is a home builded part???

this is a fiber I've never heart about before, if their price is comparable to glass they could be used as a reinforcement, but unfortunately they are heavier.... have someone been able to find its mechanical datas?I would like to compare it to other fibers like dyneema zylon technora and so on.