HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Jun 05, 2001, 07:05 AM
Addicted Member
miker's Avatar
Shrewsbury, MA
Joined May 2001
161 Posts
Northrop N9M Flying Wing

How about a 23" 100g flying foam wing?

Consider:
<A HREF="http://www.soundinsight.com/album.cgi?size=m&name=wing&image=wing-pusher.jpg"></A>

This experimental flying wing starts with a 5.95 foam wing from <A HREF="http://www.simiair.com">Simi Air</A>. Add two HS-55 or HS-50 servos, a GWS R4P receiver, a suitably small motor and ESC for a flying weight of 98g.

Greg Covey has set up a site to document this <A HREF="http://www.isc.rit.edu/~gjc9518/project.htm">project</A>.
miker is offline Find More Posts by miker
Reply With Quote
Sign up now
to remove ads between posts
Old Jun 05, 2001, 09:00 AM
Registered User
Rochester, NY, USA
Joined Aug 2000
7,827 Posts
Hi Mike,

Thanks for connecting the old link to this one. I almost missed it.

I forgot to answer your question about gearing the G9330 motor. It actually came from last years NEAT fair. I'll get more information on it from the guy that showed me and let you know.

Is that picture above, the ship that you didn't like how it flew with the DX-A motor?

I cut my ailerons last night and connected them using the "weave" technique that is on all my Zagis. Using simple clear cellophane tape, it makes a very strong hinge without any servo binding.

My digital camera guy should be over this weekend so i'll have some pictures soon.

Hopefully, the motors will arrive any day. I expect the ship to both glide "slow and easy" and go like a pylon racer. The balsa version that Paul W. built is virtually the same size and about 1/2 oz heavier.


[This message has been edited by Greg Covey (edited 06-05-2001).]
Greg Covey is online now Find More Posts by Greg Covey
RCG Plus Member
Latest blog entry: Greg's Web Hangar
Reply With Quote
Old Jun 05, 2001, 10:23 AM
Registered User
Tacoma,WA
Joined May 2001
37 Posts
A week ago, after reading the 'other' thread that this one got started from (I wont say it), I ordered 3+1 for myself and now I'm looking at that old litestick for parts.

I'll be watching you guys real close
keep the posts coming
foambattery is offline Find More Posts by foambattery
Reply With Quote
Old Jun 05, 2001, 10:33 AM
Registered User
Rochester, NY, USA
Joined Aug 2000
7,827 Posts
LOL, FB

Originally, I briefly considered the same thing but finally decided to order new components...my Pico Stick is just too cute!

My first order of "3 + 1" came in only three days. I just ordered another 4 because I sold 3 of them already! You'll see that they are the perfect hull for this project. At lunchtime, we're gonna toss one outside to see how it glides unmodified.

Wait until I post a picture of this 23" wing next to my 72" Super Zagi! What a contrast, indeed.


[This message has been edited by Greg Covey (edited 06-05-2001).]
Greg Covey is online now Find More Posts by Greg Covey
RCG Plus Member
Latest blog entry: Greg's Web Hangar
Reply With Quote
Old Jun 05, 2001, 11:17 AM
Addicted Member
miker's Avatar
Shrewsbury, MA
Joined May 2001
161 Posts
GC,

The version shown in the above picture has plenty of thrust with the DX-A motor, but seems to want to rotate counter clockwise (as it is flying away), which I have assumed is caused by the torque of the motor. Perhaps this alone could be fixed by changing the axis angle of the motor. More testing needed or the advice of a more seasoned professional. Also notice that the above version does not have the winglets that were later added.

I should have warned you that the molded ailerons in the foam wing are slightly different in size. Not sure how much of an effect this may have.

I would like to see your "weave" technique. You can see that I am simply using electrical tape.

When you throw the unmodified glider, you will note that it wants to loop. I forgot to mention that beneath the black tape on the top of the wing you will find maybe 10 grams of clay. You can adjust this and see if you get more level flight. Naturally, you will remove that for the motorized version.

What I like most about this platform is how easy it is to add pockets for things like the servos and motor (like the zagi). A simple dremel drum is great to carve and you have plenty of depth to work with for the servos.

I, too took a picture next to my Zagi. I will post tonight.

Look forward to hearing more about gearing the G9330.

FB, thanks for not using the embarrassing former name.
miker is offline Find More Posts by miker
Reply With Quote
Old Jun 05, 2001, 02:06 PM
Registered User
Rochester, NY, USA
Joined Aug 2000
7,827 Posts
Mike,

I updated my mini-Zagi project page. Although it only refers you to my other article for a graphic on the weaving technique.

I hope to cut the servo holes tonight. I'll make them slightly small so I can just squeeze the servo in place and hold it with a few dabs of white glue. I plan to cut all the way though so the servo bottom becomes the wing bottom. I'll then cover it with a piece of strapping tape.

Those blue HS-55 micro-servos are cute. They were giving them away as hat pins at last years NEAT fair...not my style though.


[This message has been edited by Greg Covey (edited 06-05-2001).]
Greg Covey is online now Find More Posts by Greg Covey
RCG Plus Member
Latest blog entry: Greg's Web Hangar
Reply With Quote
Old Jun 05, 2001, 02:30 PM
Addicted Member
miker's Avatar
Shrewsbury, MA
Joined May 2001
161 Posts
Very good. I like that hinge method. I will try this.

I didn't cut all the way through with my servos. I cut in from the top so that the servos were flush with the top, allowing them to be held in with one piece of tape. I also didn't glue. This was the same with my Zagi and I haven't had any noticeable problems.

From the above image you can see that the servos were place nearly in line with the CG. I figured that the motor and battery would then counter each other, which is true with my 7x50 mah cells.
miker is offline Find More Posts by miker
Reply With Quote
Old Jun 05, 2001, 03:26 PM
Registered User
PA ,USA
Joined May 2001
44 Posts
Three questions:

1. Can you use standard-size servos for a slope-soarer?

2. Do any hobby stores carry these planes?

3. Are the planes good chuck and fly gliders?
Mad Bomber is offline Find More Posts by Mad Bomber
Reply With Quote
Old Jun 05, 2001, 03:41 PM
Addicted Member
miker's Avatar
Shrewsbury, MA
Joined May 2001
161 Posts
1. Standard size servos? I don't know. Probably too heavy.

2. I could only find reference to this wing on three sites. One was a french site http://www.zsysteme.com, one was a toy site (can't find that site now) and the other was http://www.simiair.com. I have never seen this at toy store.

3. If by "chuck and glide" you mean without RC stuff, yes! These are a lot of fun. Most flights are predictable in that they loop easily one and two loops. Occasionally, thrown in wind, the wing gets added lift and travels a good distance. As an RC glider, I suspect this will fly well (see this page http://www.zsysteme.com/en/microbess_en.html - I can't read French).
miker is offline Find More Posts by miker
Reply With Quote
Old Jun 05, 2001, 03:52 PM
Registered User
PA ,USA
Joined May 2001
44 Posts
One more thing. What type of paint/spray paint should be used to decorate the plane?
Mad Bomber is offline Find More Posts by Mad Bomber
Reply With Quote
Old Jun 05, 2001, 08:50 PM
Electric Coolhunter
Thomas B's Avatar
United States, TX, Fort Worth
Joined Jun 2000
14,510 Posts
I got my 3+1 pack of N9M foamies yesterday.
Has anyone tried the Wattage B-2 motors and props on one yet?

If you could get it to balance with the props in the scale location, you could make a neat little scale model of it.

I was thinking about making a custom battery pack and put two sets of 3 cells end to end in each wing LE as close to the center as possible and see if that would let you have the little B-2 motors at the TE of the wing and get a reasonable balance.

As far as foam paint goes, some Testors spray paint can be lightly applied over foam. Test on a scrap bit of foam, first.
If you have an airbrush, you can very lightly apply various water based acrylics. Anything water based will not harm the foam.
Thomas B is offline Find More Posts by Thomas B
RCG Plus Member
Latest blog entry: 2014 events and travel
Reply With Quote
Old Jun 05, 2001, 09:22 PM
Addicted Member
miker's Avatar
Shrewsbury, MA
Joined May 2001
161 Posts
<A HREF='http://www.soundinsight.com/album.cgi?size=m&name=wing&image=107-0792_img.jpg'><IMG SRC='http://www.soundinsight.com/images/wing/s/107-0792_img.jpg'></A>
miker is offline Find More Posts by miker
Reply With Quote
Old Jun 05, 2001, 09:32 PM
Registered User
Here To Eternity
Joined May 2001
29 Posts
That picture is upside down.
Benjamin Dover is offline Find More Posts by Benjamin Dover
Reply With Quote
Old Jun 05, 2001, 09:52 PM
Addicted Member
miker's Avatar
Shrewsbury, MA
Joined May 2001
161 Posts
Fixed.
miker is offline Find More Posts by miker
Reply With Quote
Old Jun 06, 2001, 12:11 AM
Registered User
Berkeley, CA USA
Joined Apr 2001
643 Posts
Quote:
Originally posted by miker:
1. Standard size servos? I don't know. Probably too heavy.

2. I could only find reference to this wing on three sites. One was a french site http://www.zsysteme.com, one was a toy site (can't find that site now) and the other was http://www.simiair.com. I have never seen this at toy store.

3. If by "chuck and glide" you mean without RC stuff, yes! These are a lot of fun. Most flights are predictable in that they loop easily one and two loops. Occasionally, thrown in wind, the wing gets added lift and travels a good distance. As an RC glider, I suspect this will fly well (see this page http://www.zsysteme.com/en/microbess_en.html - I can't read French).

Sheldon's hobbies had these a few years ago...i had one. I don't know if it was the same size...it may have been smaller.
Mighty Mik is offline Find More Posts by Mighty Mik
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion Hobby-Lobby's Northrop N9M EPP Flying Wing Mchone, Jake Flying Wings 9 Nov 18, 2006 10:10 AM
New Product Northrop N9M Pre-Painted EPP Flying Wing at Hobby-Lobby Ramones, The Electric Warbirds 12 Jul 26, 2006 12:40 PM
Semi Air N9M Foam Flying Wing blswinney7 Flying Wings 4 Aug 23, 2005 11:13 AM
FS: Plans of the Northrop N9M-A Flying Wing Rudderman98 Aircraft - Electric - Airplanes (FS/W) 4 Apr 01, 2002 08:40 PM