Neve's 70% Blunt nise Versa Wing build
- Thread starter nevenelestate
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nevenelestate
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Extended and rounded wing tips
I built another 70%, this time with rounded wing tips. It is 40.4 inch wing span.
Going to go fly it shortly, hopefully get some video of it flying around.
I built another 70%, this time with rounded wing tips. It is 40.4 inch wing span.
Going to go fly it shortly, hopefully get some video of it flying around.
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wbvike
New member
Very cool idea with the 70% blunt nose. I built the regular one and it flew great, until I hit a barb wire fence!! I love this forum because so many people have ideas like this that I would not have thought of!! I think I'm going build this at the 70% and use the parts from a tiny trainer stick build I did for my son, as it has all the same parts you used for the original one you built. We could never get the stick version tiny trainer to turn to the right and this build looks like it would have less problems with that.
Question, did you change the CG for the 70% build or is it in the same location, just scaled down? Thanks.
Question, did you change the CG for the 70% build or is it in the same location, just scaled down? Thanks.
nevenelestate
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My friend showed me this cool delta wing tool, http://rcwingcog.a0001.net/ FLYING WING CG CALCULATOR V2, as pictured above for the twin I am considering. You enter the measurements of the quad and then it gives you a suggested CG location. It can be adjusted for Beginner, all around and expert flying types too.
nevenelestate
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I got a chance to fly yesterday and I have to say that despite others claims that the Versa handles the same with or without the vertical fins, I noticed a pretty big difference. There is a huge difference in the launch throw, since the wing just wants to slide around it takes a bit to get it evened out and "smooth." Once it is in the air and flying around it has a much greater tendency to slide through turns. I believe that having had many many flights with Versas, full sized and scaled down, that I was able to better understand what the wing was going to do.
I highly recommend using the vertical fins for first time wing flyers, until you get the hang of hand launching and how they fly.
That said, this thing is fun! I flew it with a 5x3 prop and it soared decently, there was only a light irregular breeze but I could notice it enough. I then borrowed a 3 blade 5x4.5 prop from my friend and it helped give it that extra pep I prefer. I will definitely be buying some 5x4.5 props, likely just regular 2 blades as they tend to do better on landings with the wing.
I highly recommend using the vertical fins for first time wing flyers, until you get the hang of hand launching and how they fly.
That said, this thing is fun! I flew it with a 5x3 prop and it soared decently, there was only a light irregular breeze but I could notice it enough. I then borrowed a 3 blade 5x4.5 prop from my friend and it helped give it that extra pep I prefer. I will definitely be buying some 5x4.5 props, likely just regular 2 blades as they tend to do better on landings with the wing.
nevenelestate
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To help with the side slip I made some small (30mm tall) ventral fins. On my test flight I noticed that I really had a lot of slop in my push rods. I had drilled the holes in the servo control arms out to hold the push rod ends, but in this configuration the push rod ends are on the surface control horns. I have now filled the holes with some CA and there is no more free play movement in the elevons. I did this by putting the push rod through the control arm then applying glue and let it dry over night. In the morning I then twisted the push rod to free it and was able to slide it out then reinsert it in the correct configuration, no more slop! Might get a chance to fly it again tonight.
Here are the new fins. I re-enforced the contact edge with hot glue to try to make it more robust. The wing "tip" ones are cut to contour the wing, that is why the close one in the picture looks curved.
Here are the new fins. I re-enforced the contact edge with hot glue to try to make it more robust. The wing "tip" ones are cut to contour the wing, that is why the close one in the picture looks curved.
nevenelestate
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Looks like two zip ties with a section of pushrod through them. possible the thicker stock metal rod that FT use for the Mini Guinea landing gear.
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Looks like two zip ties with a section of pushrod through them. possible the thicker stock metal rod that FT use for the Mini Guinea landing gear.
i used 2 zipties (i just put a third one on the hatch) with a glasfiber rod i had laying around ( you could use a bbq skewer)
Edit:
I made a short video of my 65% blunt nose:
wbvike
New member
Nice, that looks like it flies pretty darn fast!! I've cut all the foam out to build the 70%, just have to get it all glued and transfer the parts from the tiny trainer stick version to this one. Have you flown the normal sized blunt nose? If so, i would assume that it's going to have almost identical characteristics just smaller scale. I'm hoping to be able to let me son fly this one, as even if he does crash, this build seems to be a bit more forgiving than other models. I met up with the top of a barbwire fence with my blunt nose versa (regular size) and even though the battery punched a hole and flew out the from the bottom front, the damage really isn't all that bad! Oh and the motor mount broke and one of the servos came loose, but still.....ha!!
nevenelestate
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I do have a full size BN Versa Wing, haven't flown it in a bit though. I enjoyed flying it so much, but its a little big to transport, that's why I decided to try the 70%. I have flown the full size into many things, ground, trees, my truck, a handicap port-a-potty (unoccupied) and probably many other things, and it still flies! I do plan to rebuild it also, the blunt nose is blunt both horizontally and vertically currently...oops. I even built a small bomb bay that I attached to the bottom of the Versa.
The 70% with the vertical fins flies almost identical to the full scale. With the first 70% I built I ran the 6x4.5 props a bunch and it flies FAST! But I also found that that was pretty much destroying the motor. I have some 5x3s on hand already so that is what I have been flying with, and they work fine but no where near as fast. Last night I got an 8 minute flight at full throttle with 1300mAh 3S battery and the 5x3 prop. I plan to buy some 5x4 and 5x4.5 to try out as soon as they are back in stock.
Here is one video from last night, I was trying to do low level passes between the trees. In the end I was looking down at my xmitter, i believe looking at trim inputs, when a gust pushed the mini versa down and with the wind. By the time I realized it I could't save it, but even though it skimmed the paved walking path going pretty quick and then flipped over, it was still fine and flew one short flight after this. Only damage was the prop was destroyed (first one on the mini versa) and the tape on the nose got a little scuffed.
The 70% with the vertical fins flies almost identical to the full scale. With the first 70% I built I ran the 6x4.5 props a bunch and it flies FAST! But I also found that that was pretty much destroying the motor. I have some 5x3s on hand already so that is what I have been flying with, and they work fine but no where near as fast. Last night I got an 8 minute flight at full throttle with 1300mAh 3S battery and the 5x3 prop. I plan to buy some 5x4 and 5x4.5 to try out as soon as they are back in stock.
Here is one video from last night, I was trying to do low level passes between the trees. In the end I was looking down at my xmitter, i believe looking at trim inputs, when a gust pushed the mini versa down and with the wind. By the time I realized it I could't save it, but even though it skimmed the paved walking path going pretty quick and then flipped over, it was still fine and flew one short flight after this. Only damage was the prop was destroyed (first one on the mini versa) and the tape on the nose got a little scuffed.
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nevenelestate
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Looks good! I would love to make a 50% and get the CG to work. I had tried it but was unsuccessful and got bored so just went up to the 70%.
to get the cg right i have cut away a section from rear where the motor sits.
Next time I will try to make a cut without square edges, the foam is tearing at these edges.
wbvike
New member
I think i already know the answer to this question, but going to ask anyway......... do you leave the throttle at one setting for most of the entire flight? I don't like messing with the throttle much unless i'm going way too fast to too slow! From the sound of the video it seemd that you left the throttle the same the entire flight. That's for the most part how i fly the tiny trainer and did the same on the full size blunt nose. I'll be using the same motor you have, the Emax 1806 with the 12amp ESC and a 460mAh 3-cell 11.1v battery. I'm hoping this will somewhat give about the same speed of the TT that i currently fly, as that is plenty enough speed for me for now!
Funny that you hit a porter potty!! I hope to have this plane built and ready by the end of the week. One other thing, how does it fly in somewhat gusty winds? The TT doesn't do that well in wind, it will fly, but the risk is greater for a crash and i really don't want to crash the TT. The full size versa flew pretty good on a windy day.
Funny that you hit a porter potty!! I hope to have this plane built and ready by the end of the week. One other thing, how does it fly in somewhat gusty winds? The TT doesn't do that well in wind, it will fly, but the risk is greater for a crash and i really don't want to crash the TT. The full size versa flew pretty good on a windy day.
nevenelestate
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I started doing hot glue on all the edges, smearing it thin to make a barrier.
With the 5x3 I ran it full throttle simply because it is under powered, for how I like to fly...FAST. However I do adjust the throttle normally when flying the full or mini versas.
The wings are great fun in the wind, if you have the nerves. The full size Versa handles well in rather gusty wind, it is fun to soar. In the video below I actually cut the throttle to off and just floated in one spot using the wind. I found yesterday that the 70% tends to get pushed around a bit more, I believe due to the lighter weight. I also don't have the wing tip vertical fins which seem to almost weather vain the wing in gustier winds. The large versa with the fins would point itself into the wind, the mini without just got pushed around more (see the end of the last video posted above).
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nevenelestate
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A few more clips from yesterday. I left the hand launch in the first clip because you can see my shadow which gives an idea of how I launch it.
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nevenelestate
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Coming along well wbvike.
I am thinking about trying to make my next blunt nose section rounded on top and bottom, to give more room for battery(ies) or possibly to add a small cargo drop bay. More to come.
I am thinking about trying to make my next blunt nose section rounded on top and bottom, to give more room for battery(ies) or possibly to add a small cargo drop bay. More to come.
wbvike
New member
Well I got it all glued together tonight. But as I was taking the electronics off the tiny trainer stick version I built, I found out why I believe it wasn't turning in the air.... I had cut the servo rods to make them the correct length and then I used a heat shrink tube to tie the two rods together. So when I took Them apart tonight the slide right out with no resistance... So what I think was happening was during flight the rods were moving inside the shrink tube just enough to cause the rudder to not work! Never crossed my mind that the rods were possibly doing that.... I will give this smaller versa a try still and go from there
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