|Yesterday, 02:31 AM|
ASFX Shinden II
So fellow RC Group poster, radwan126, started a design thread on the ASFX-Shniden II From AceCombat
Props to him for taking on an awesome plane that doesn't seem to have been built before. We collaborated a bit on his design, but I wanted to go a little further and try and make it fully functional as much as I can. More specifically - fully functional 3-position vertical stabilizers. What?!
After looking a little closer at the pics of the Shindin II, I finally realized they are the same plane but with stabilizers that swing into different configurations. I also realized I just found a new challenge!
First off, I'll need to see if I can produce that range of movement with the standard 9g servos I have laying around and how to make it stable for transition in flight. Then figuring out how to program my 9X. I figure it's not much different than programing landing gear with a 3-position switch, but the elevator and rudder throws will need to reverse in different configurations.
It seems the wing tips pivot down as well but I don't think I'll mess with that for the time being since I don't think it'll have a big impact in the flight characteristics.
This will hopefully become a design/build log.
|Yesterday, 07:50 AM|
Thanks for your thread iam really happy that someone cares for my ideas but there is a note :
First of all if you havent played ace combat with this plane your gonna miss some important info about the plane you can see some vids on youtube
From what i have noticed the vertical stabilizers make those position for specific throttle power for example : the stabilizers go down when the plane is landing or in vtol mod (yes it has vtol) and they make a triangle shape when the plane at full speed or accelerating
And make a v shape when the plane at medium speed .
There are rumors that this plane is expected to be out in 2018 and another plane named adf-01 falken wich i am going to make a thread about it soon so stay tuned
Thanks again for your ideas that helped us make this fantastic plane hope to see it in the skies
|Yesterday, 02:13 PM|
good luck guys. this should be an interesting build.
As far as the rang of throw on the servoes, you may have to get a bit more creative. One of the flight test guys took a servo and mounted an external potentimeter linked back to the servo with a gear to get more rotation from the servo. He used this to mount a camera on the swivvle and got a good 340° rotation from it.
|Yesterday, 05:40 PM|
Thanks for the info, Rad. I found a wiki page on Ace Combat with a bunch of pictures and descriptions of the ASFX and they did mention VTOL, but that's a little beyond my skill set to make this one take off vertically. I'm just going to focus on the tail fins.
Funny thing is I also have a picture of the ADF-01 Falken in my to-do files. Never knew what it was called. I've found inspiration on most of my recent potential builds on the Deviant Art website and I don't usually look at the description of where they came from. It's awesome we have a similar taste in what looks cool. I'll have to share my files collection and see what you wanna build next!
Outcast, thanks for the info as well.
To get my servo throws, I was going to modify my servos using some information from http://www.rcgroups.com/forums/showthread.php?t=629294. We should only need 180d rotation. I think direct drive will be the way to go on this. In my head, it seems a push rod would bind before it gets that far and might not be very strong/stable even if it did. I even thought about connecting two servos at the axle to get more throw, but that seemed a little overkill. I'm already going to need a separate servo mounted directly to the stabilizer to move the control surface.
|Yesterday, 05:47 PM|
Joined Mar 2009
I have to admit, I don't have time for the computer games. I barely have time for RC. But Radwan126, your explination of the intended functionality, explains a lot. I love the look of the plane, REAL SLICK. But the upper intake caught my eye right off, along with the two traditional side intakes. I wondered why 3. I actually have EDF in mind for your plane and it was bugging me about having to deal with 3 intakes. VTOL capability makes sense now. Looking at all the photos collectively, you start to make out features. Tail probably slews down, down thrusters beneath the canards, and the intake on top to feed it all. Real Slick. As for the different position of the stabs, makes sense for the different flight modes.
Personally, I'm looking at the v-tail setup. I'm not after the vtol capability and the inward canted stabs make for a VERY Unstable plane. You'd probably be looking at a 3 axis stabilizer to get control.
So, Magnificado, you're going to have a go at it. Are you also going to try the vtol capability. There's a F-35 thread in the Scratchbuilt EDF forum that might interest you, if you are. I'll have to keep an eye on this your thread, subscribed.
|Yesterday, 09:25 PM|
EDF would be great, but I don't have much experience with edf. Maybe a version 2 would be edf later after I build a proof of concept with a prop n' slot pusher. Maybe one of the edf guys can take it and run with it. For now, I'm just sticking to what I know - DT foam board with fairly simple construction.
As for VTOL, I don't have any experience with that either, and from the videos I've seen on the matter, that's a whole 'nother world of complexity I'm not quite ready for. I just have all the air intakes open to get as much air to the prop as possible. See front view.
I've built planes with all kinds of tail configurations - inward canted (F-19 stealth), standard v-tail (too many to count) and inverted v-tail (FMR-27a). I didn't have any stability issues with the inward canted stabs on my F-19, but I did have some with the inverted v-tail on my FMR wanting to roll over. I just needed a little time to learn to fly it. No gyros (nothing against gyros, though ).
Here's what I've got so far in my design.
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