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Delta & Flying Wings Discuss electric powered delta (flying wing) style aircraft here.

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Old 05-18-2011, 04:37 AM   #876
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Originally Posted by computerman0219 View Post
Ok great! Thanks Wrench! I have the delta cut out but still have to soak it. I hope to get around to it tomorrow or Thursday. As mentioned I am building Chellie's delta model, but I have a question regarding the skid plate and vertical stab. is it just epoxied in? To me that just don't seem tough enough. One good flip over in the grass and it would seem like it would break off. Has anyone else built one? Did you use something down the side of the vertical stab to reenforce it? Thanks in advance!
No bracing but it's no prob, mine is built without the lower skid and with the verticle just epoxied on to the fuse. It has been loosened a couple times but it's never come off. I have thought of doing another with two or three smaller vert fins instead of the bigger single, just to do something different.
Also mine was built with a stationary top horiz fin (think DC9 or 727 style) and even then it's been solid. I think my pics are back in the thread somewhere...lol.

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Old 05-18-2011, 08:46 AM   #877
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Well I'll be a monkeys uncle!!!

I started building this a few days ago and was thinking... "cool... I'll be the first ever to make a Micro-Delta"... see what happens when you give a newb some foam sheets and cf glue!!!

I see now these things have been around for a while. I truly did design, cut out and start to build this before i ever saw this thread, So i hope to not only absorb and use info on here to better my build but maybe mine will inspire some new ideas in other as well.

Not finished yet... i actually got distracted building another 3d plane


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Old 05-18-2011, 09:55 AM   #878
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Originally Posted by computerman0219 View Post
Ok great! Thanks Wrench! I have the delta cut out but still have to soak it. I hope to get around to it tomorrow or Thursday. As mentioned I am building Chellie's delta model, but I have a question regarding the skid plate and vertical stab. is it just epoxied in? To me that just don't seem tough enough. One good flip over in the grass and it would seem like it would break off. Has anyone else built one? Did you use something down the side of the vertical stab to reenforce it? Thanks in advance!
Hi Wrench is a pro at making foam planes warm water seems to help to soften the paper a little quicker as does sanding the paper a little so the water penetrates faster, about 1/16" gap works well when taping hinges, taper the edge of the control surface to a 45 degree angle so it will deflect 45 degrees, yes just epoxy the skid plate in, i also add some thin basswood to the bottom of the skid, epoxy is very strong, the foam will break before the epoxy lets go, you can soak the basswood in boiling water or use a heat gun to get the wood hot to bend it with, its best to cut the parts out first with the paper on, then soak the paper off, use a wash towel to scrub off the glue on the foam with, some paper and glue will remain and that will get it all off, Hope that helps, Chellie

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Old 05-18-2011, 10:47 AM   #879
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Originally Posted by jap71173 View Post
Well I'll be a monkeys uncle!!!

I started building this a few days ago and was thinking... "cool... I'll be the first ever to make a Micro-Delta"... see what happens when you give a newb some foam sheets and cf glue!!!

I see now these things have been around for a while. I truly did design, cut out and start to build this before i ever saw this thread, So i hope to not only absorb and use info on here to better my build but maybe mine will inspire some new ideas in other as well.

Not finished yet... i actually got distracted building another 3d plane
What is the wingspan of your micro-delta?
I have built one that is 24 inches wingspan and is a racer. Very high speed.
Runs on 3S 2250Mah lipo 25 c and a 30 amps esc.
Unfortunately it crashes during a high speed test due to another faulty servo.

http://www.youtube.com/user/starscre.../0/0lCz5kBuu74

Cheers
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Old 05-18-2011, 10:52 AM   #880
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Originally Posted by babylon5 View Post
What is the wingspan of your micro-delta?
I have built one that is 24 inches wingspan and is a racer. Very high speed.
Runs on 3S 2250Mah lipo 25 c and a 30 amps esc.
Unfortunately it crashes during a high speed test due to another faulty servo.

http://www.youtube.com/user/starscre.../0/0lCz5kBuu74

Cheers
Hi Babylon what servos were you using

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Old 05-18-2011, 02:47 PM   #881
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Originally Posted by CHELLIE View Post
Hi Babylon what servos were you using
Hi Chellie, I am using E-Sky micro servo. Maybe the speed was too much or something else happen to the servo. I had a few hard landing prior to the crashed.

cheers
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Old 05-18-2011, 06:12 PM   #882
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Originally Posted by babylon5 View Post
What is the wingspan of your micro-delta?
I have built one that is 24 inches wingspan and is a racer. Very high speed.
Runs on 3S 2250Mah lipo 25 c and a 30 amps esc.
Unfortunately it crashes during a high speed test due to another faulty servo.

http://www.youtube.com/user/starscre.../0/0lCz5kBuu74

Cheers
Actually, i started building this thing to get a head start on Chellie's $100/100mph contest

wingspan is 16.5" tip to tip...
it's 11" long from front to back
I was planning to use ply wood for elevons w/12g metal gear servos
CF2812 motor 1600kv with a 7x6 prop
1300mAh 3S 30C battery

I don't forsee any problem with the extra weight... but i'm definantly gonna have to do a bright color scheme since at that size, i'm barely gonna be able to see it when it's bolting by!!!

Every takeoff is optional. Every landing is mandatory!

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Old 05-18-2011, 10:17 PM   #883
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Originally Posted by babylon5 View Post
Hi Chellie, I am using E-Sky micro servo. Maybe the speed was too much or something else happen to the servo. I had a few hard landing prior to the crashed.

cheers
Hi babylon try using the HXT 9 Gram servos, thats all I use, and they are just about bullet proof i used them in a fun jet doing 103 MPH and they are inexpensive, Hope that helps, Chellie

http://www.hobbyking.com/hobbyking/s...?idProduct=662

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Old 05-19-2011, 05:08 AM   #884
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Originally Posted by CHELLIE View Post
Hi babylon try using the HXT 9 Gram servos, thats all I use, and they are just about bullet proof i used them in a fun jet doing 103 MPH and they are inexpensive, Hope that helps, Chellie

http://www.hobbyking.com/hobbyking/s...?idProduct=662
Thanks for your advise. I do have the HXT 9 gram. However, they are not bullet proof either. I had issues with the HXT9 in the past because the, serration from the horn side appeared to be pretty badly molded hence allowing the horn to slip or have insufficient grip to the middle spindle gear. Every time I use the HXT 9 , I have to check for such a defect.
May want to consider investing on the metal gear servos in the future.

Cheers
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Old 05-19-2011, 05:15 AM   #885
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Originally Posted by babylon5 View Post
Thanks for your advise. I do have the HXT 9 gram. However, they are not bullet proof either. I had issues with the HXT9 in the past because the, serration from the horn side appeared to be pretty badly molded hence allowing the horn to slip or have insufficient grip to the middle spindle gear. Every time I use the HXT 9 , I have to check for such a defect.
May want to consider investing on the metal gear servos in the future.

Cheers
If you do, try these... they're great!
http://www.headsuprc.com/servlet/the...2g-EMAX/Detail

Every takeoff is optional. Every landing is mandatory!

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Old 05-20-2011, 04:26 PM   #886
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I'm jumping in. Got the go ahead to purchase the elctronics with nothing more than a "You are crazy." I think mentioning Michael's helped...

My question is: Are you using the 3/16" foam project board or something else? I've looked through the thread but haven't seen that. Is it the project board?

This is exciting. I'm really looking forward to putting this together.
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Old 05-20-2011, 11:08 PM   #887
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Originally Posted by megajon View Post
I'm jumping in. Got the go ahead to purchase the elctronics with nothing more than a "You are crazy." I think mentioning Michael's helped...

My question is: Are you using the 3/16" foam project board or something else? I've looked through the thread but haven't seen that. Is it the project board?

This is exciting. I'm really looking forward to putting this together.
Hi megajon and Welcome to Wattflyers on post #1 i mentioned that i used Foam Board, 6mm depron will work great too, If your going to use foam board, leave the paper on one side of the foam board, that will help to make the plane stronger with out adding to much weight, the paper is half the weight of the foam board, so getting some of the paper off helps,
here is some info on cutting foam if your interested, take care and have fun, Chellie

http://www.wattflyer.com/forums/showthread.php?t=39733

http://www.wattflyer.com/forums/showthread.php?t=39483

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Old 05-23-2011, 08:36 PM   #888
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Thanks Chellie. I picked up the foam board and have drawn out the shapes. All of the electronics have shipped - thank you for the headsup on a good source...

I'm glad I checked in before cutting, I wouldn't have taped OR used the straight edge for the cut.
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Old 05-24-2011, 03:46 AM   #889
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Well I am about finished with my delta. However I have ran into a problem. I thought that I was suppose to remove all the paper off so I did. I added the two dowel rods as well but now the motor and mount is to heavy and the nose just bends down. I am worried about adding more dowel rods due the weight. The plane looks great however it looks like it will break any minute.
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Old 05-24-2011, 09:07 AM   #890
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Originally Posted by computerman0219 View Post
Well I am about finished with my delta. However I have ran into a problem. I thought that I was suppose to remove all the paper off so I did. I added the two dowel rods as well but now the motor and mount is to heavy and the nose just bends down. I am worried about adding more dowel rods due the weight. The plane looks great however it looks like it will break any minute.
add a skid underneath the plane from front to the back


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Old 05-26-2011, 01:56 AM   #891
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It wasn't bad after the first crash (It had minor damage). So I decided to adjust the CGs and try again. It made a world of a difference. However, it only flew for about 45sec. It was very very touchy! I made a few passes with it but it was very sensitive. After about 45 secs of flying I started a banked turn and naturally it started to lose altitude because of the bank turn but even under full power it was unable to recover. Instead it went wide open nose down into the ground. Well I learned alot and only lost $3 so I don't feel to bad. I actually made something fly although for less than a minute. I did learn to stick with a traditional style aircraft for my first build. So I am thinking of creating a Super Cub design for my next build (modeled after my HZ SuperCub). I would like to make it maybe a little smaller so it can be more lighter and handle more load. I would like to be able to put some big tires on there for grass landings and takeoffs as well as a place for a camera. So any motor suggestion? Main thing is torque. The batteries I plan on using are 3s 1000-2500mAH.

Thanks
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Old 05-26-2011, 02:06 AM   #892
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That sounds like classic tail-heaviness to me.

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Old 05-26-2011, 02:39 AM   #893
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Originally Posted by computerman0219 View Post
It wasn't bad after the first crash (It had minor damage). So I decided to adjust the CGs and try again. It made a world of a difference. However, it only flew for about 45sec. It was very very touchy! I made a few passes with it but it was very sensitive. After about 45 secs of flying I started a banked turn and naturally it started to lose altitude because of the bank turn but even under full power it was unable to recover. Instead it went wide open nose down into the ground. Well I learned alot and only lost $3 so I don't feel to bad. I actually made something fly although for less than a minute. I did learn to stick with a traditional style aircraft for my first build. So I am thinking of creating a Super Cub design for my next build (modeled after my HZ SuperCub). I would like to make it maybe a little smaller so it can be more lighter and handle more load. I would like to be able to put some big tires on there for grass landings and takeoffs as well as a place for a camera. So any motor suggestion? Main thing is torque. The batteries I plan on using are 3s 1000-2500mAH.

Thanks
Your just learned how to fly a delta you have to go up before turning with a delta or they will nose down on you in a turn, the FunJet flies the same way, make another one and go up before turning, also, set your travel on the elevons to 3/8" up and 3/8" down from center, or they will be very sensitive, and for about $1.00 in foam, its a great delta learning tool Take care and have fun, Chellie

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Old 05-26-2011, 03:07 AM   #894
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Thanks Chellie. I have flown the Stryker before which is a delta and could fly that good. But this one was really sensitive unlike my last Stryker I had. I think on my second flight I had the CGs closer to the correct spot but still off. I will try again but will stick with the traditional style next time. Until I master that I will stick with that (at least for now )
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Old 10-03-2011, 06:36 PM   #895
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After taking the summer off from flying I'm back in - got the work bench cleared back off and painted my foam. Did my first soldering last night with a borrowed iron and got the plugs (connectors?) attached to my motor. Hooked up the motor, esc, and battery without setting anything on fire and then bound it to my DX7. I forgot to take pictures, will do so this evening.

I am planning to attach everything with velcro (except the motor) so I can adjust the CG without too much trouble. Does that make sense or are my electronics and battery going to go flying? I mean off the plane when I crash, not when I'm actually airborne.
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