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Forum: Aerodynamics
04-24-2012, 03:56 AM
Replies: 26
Views: 17,754
Posted By norcalwelder

Split flaps are not just to create drag. They are...

Split flaps are not just to create drag. They are more effective at increasing the coefficient than a plain flap, but not as good as a Fowler flaps. Keep in mind that the first 50% of a flap range...
03-05-2012, 04:01 AM
Replies: 4
Views: 1,470
Posted By norcalwelder

If your thrust line is too high, it will give a...

If your thrust line is too high, it will give a nose down pitching moment as you apply power. Sounds like what might be going on here.
Forum: ParkFlyers
02-05-2012, 06:30 PM
Replies: 1
Views: 712
Posted By norcalwelder

Anybody still flying Aerobirds?

The old Hobbyzone Aerobird Challengers? I had one back in the day, put push rods on it instead of the fishing line and rubber, all sorts of little tweaks. Great planes! Anybody still flying them?
Forum: Aerodynamics
02-05-2012, 06:00 PM
Replies: 12
Views: 15,715
Posted By norcalwelder

Basically you only need to worry about washout if...

Basically you only need to worry about washout if you have a wing plan form other than a rectangular wing. (tapered, delta, elliptical) An aircraft's stall characteristics are determined by its wing...
Forum: Power Systems
08-07-2011, 09:49 PM
Replies: 4
Views: 1,115
Posted By norcalwelder

I had an idea about measuring current draw

If you had a resister that could handle the wattage, couldn't you just stick a resister in between on the leads on your battery pack and measure the voltage loss across it and figure the current out...
Forum: Foamies
08-06-2011, 03:48 AM
Replies: 108
Views: 39,248
Posted By norcalwelder

Where do you put the batteries in those titan's...

Where do you put the batteries in those titan's with the front mounted motors? Seems like they'd have to be decently far aft?
Forum: Foamies
08-03-2011, 03:31 AM
Replies: 5
Views: 1,380
Posted By norcalwelder

Fishing rod with extra weights on on the line.

Fishing rod with extra weights on on the line.
Forum: Foamies
08-02-2011, 04:26 AM
Replies: 108
Views: 39,248
Posted By norcalwelder

I use 2 .045 wires, one to each side of the...

I use 2 .045 wires, one to each side of the elevator in the shape of a V. I do have the control horns on the top of the elevator, so thats not a problem. What happened was the two ends of the wire...
Forum: Foamies
08-02-2011, 04:01 AM
Replies: 108
Views: 39,248
Posted By norcalwelder

Interesting... My tail mounted pusher likes to...

Interesting... My tail mounted pusher likes to pitch up a bit, but it isn't too bad. It might just be that my airspeed is still rather low. I'm using a 1750kv with a 7x4 prop and the climb rate is...
Forum: Foamies
08-02-2011, 03:41 AM
Replies: 108
Views: 39,248
Posted By norcalwelder

If you draw a line down the fuse that runs...

If you draw a line down the fuse that runs through the wing chord, you'll find the horizontal stabilizer is actually almost exactly the same angle of incidence as the wing. Have you had success...
Forum: Foamies
08-01-2011, 01:29 AM
Replies: 108
Views: 39,248
Posted By norcalwelder

Very nice job with the tail! Its always fun to...

Very nice job with the tail! Its always fun to see something new like that.
Forum: Foamies
07-31-2011, 08:59 PM
Replies: 7
Views: 3,595
Posted By norcalwelder

Cutting 5-6" off each wing tip will help a lot,...

Cutting 5-6" off each wing tip will help a lot, and it doesn't take away very much of the gliding capability. Also, removing some of the dihedral will increase the roll rate.
Forum: Foamies
07-31-2011, 08:33 PM
Replies: 108
Views: 39,248
Posted By norcalwelder

My latest uses a tail mounted pusher. Couldn't be...

My latest uses a tail mounted pusher. Couldn't be happier with it. I suggest not using a stick mount so you can put some washers under the firewall mount to adjust the thrust line up and down and...
Forum: Foamies
07-31-2011, 01:25 PM
Replies: 108
Views: 39,248
Posted By norcalwelder

Cutting 5 to 6 inches off the tips keeps the good...

Cutting 5 to 6 inches off the tips keeps the good gliding ability and makes the plane that much more fun. I highly recommend it.
Forum: Foamies
06-30-2011, 10:59 PM
Replies: 27
Views: 8,018
Posted By norcalwelder

Thanks Chellie! I saw you posted that in like the...

Thanks Chellie! I saw you posted that in like the first post, but I wasn't sure if it would run off of a 2cell lipo as well. The brushed 400 isn't too bad, but I'm definitely going to upgrade. Today...
Forum: Foamies
06-30-2011, 05:19 AM
Replies: 27
Views: 8,018
Posted By norcalwelder

So I've been doing a little research, and I'm...

So I've been doing a little research, and I'm thinking I might do a new build with a new titan with tailerons, after I get tired of playing with this one. (which could be awhile) This morning I had a...
Forum: Foamies
06-30-2011, 03:12 AM
Replies: 27
Views: 8,018
Posted By norcalwelder

First off, thanks everyone for all the help! The...

First off, thanks everyone for all the help! The reason I went with a pusher was so I wouldn't ruin a prop every time I crashed. This morning I was doing a downwind slow flight pass about 15 feet off...
Forum: Foamies
06-28-2011, 06:22 PM
Replies: 27
Views: 8,018
Posted By norcalwelder

http://i133.photobucket.com/albums/q42/timpowell1/...

http://i133.photobucket.com/albums/q42/timpowell1/003-12.jpg
Forum: Foamies
06-28-2011, 06:03 PM
Replies: 27
Views: 8,018
Posted By norcalwelder

I'll go try and get some different shots for you....

I'll go try and get some different shots for you. The CG is right around 2/3 the wing chord from the leading edge. I throw it like a glider till it glided right, and then marked that as the CG. Its...
Forum: Foamies
06-28-2011, 04:06 PM
Replies: 27
Views: 8,018
Posted By norcalwelder

Well I ended up buying another Airhog glider and...

Well I ended up buying another Airhog glider and trying again. At first, I just used the old parkzone setup because I didn't want to invest a bunch of money right off. Got it to fly for 5 minutes or...
Forum: Foamies
06-07-2011, 04:32 AM
Replies: 27
Views: 8,018
Posted By norcalwelder

Well the whole point of this project was to try...

Well the whole point of this project was to try and use what I have so I don't have to buy a whole new setup. Being a college student, I don't really have the money to invest and all that.
Forum: Foamies
06-07-2011, 04:06 AM
Replies: 27
Views: 8,018
Posted By norcalwelder

27.something.

27.something.
Forum: Foamies
06-07-2011, 03:37 AM
Replies: 27
Views: 8,018
Posted By norcalwelder

Would a off the shelf receiver on the same...

Would a off the shelf receiver on the same frequency work with the PZ tx?
Forum: ParkFlyers
06-06-2011, 03:15 PM
Replies: 2
Views: 1,212
Posted By norcalwelder

Brushed Parkzone brushed ESC conversion

I have the radio and electronics out of a PZ FW190 that I wrecked awhile ago. I'd like to run a brushless motor on it as my last crash on a glider conversion destroyed the 480 motor and gearbox. I've...
Forum: Foamies
06-06-2011, 02:44 PM
Replies: 108
Views: 39,248
Posted By norcalwelder

Well you can always test glide it. It should...

Well you can always test glide it. It should glide in a shallow decent I believe. That was my mistake. Also, I think I made the elevator too small so it couldn't pull up. If the CG is too far...
Forum: Foamies
06-06-2011, 02:34 PM
Replies: 27
Views: 8,018
Posted By norcalwelder

Thanks for the information so far, everybody. The...

Thanks for the information so far, everybody. The reason I was going to use a brushed motor was because the parkzone radio I had to use on this project has a built-in brushed ESC. As far as I know,...
Forum: Foamies
06-06-2011, 06:36 AM
Replies: 108
Views: 39,248
Posted By norcalwelder

Where do you find the CG needs to be? My first...

Where do you find the CG needs to be? My first attempt at converting one didn't work out so well. I think my CG was too far forward. I had it a little over 2 inches from the leading edge of the wing.
Forum: Foamies
06-06-2011, 04:24 AM
Replies: 27
Views: 8,018
Posted By norcalwelder

Could use some advice about foam glider conversion

So I had a old parkzone FW190 that I crashed awhile ago. I took the guts out of it and stuck it all in a Air Hog glider. Long story short, it didn't fly very well and turned into a pile of foam....
Forum: ParkFlyers
01-30-2007, 10:01 PM
Replies: 10
Views: 2,981
Posted By norcalwelder

Wow that really cool. I'll have to do some of...

Wow that really cool. I'll have to do some of that stuff on my aerobird challenger.
Forum: ParkFlyers
01-29-2007, 08:57 PM
Replies: 388
Views: 47,082
Posted By norcalwelder

Hi guys. I just saw this post so I thought I...

Hi guys. I just saw this post so I thought I would jump in. I have been flying my ABC for about 8 months. I love it!! I just put pushrods in and they seem a lot better.
Showing results 1 to 30 of 41
 


 
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