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Cox Engine of The Month
Wing Flaps
Page 1 of 1
Wing Flaps
I am looking for a new 1/2 A kit to get back into CL flying and I've seen a few kits that have wing flaps, so I am wondering if any of you have had experience with them & how much they add to 1/2 A Stunt Flying?
Thanks RK Flyer
Thanks RK Flyer
RK Flyer- Gold Member
- Posts : 274
Join date : 2013-07-16
Location : Somerset, Kentucky
Re: Wing Flaps
Not all larger airplanes have flaps either. They are added complexity, but are intended to improve the maneuverability. I haven't flown with them either.
Phil
Phil
pkrankow- Top Poster
- Posts : 3025
Join date : 2012-10-02
Location : Ohio
Re: Wing Flaps
I have not used them on 1/2A, but I can say they turn the plane with authority on the larger ships.
I am sure they have the effect on 1/2A.
I am sure they have the effect on 1/2A.
Cribbs74- Moderator
-
Posts : 11895
Join date : 2011-10-24
Age : 50
Location : Tuttle, OK
Re: Wing Flaps
I build a lot of stuff, to satisfy my curiosity, and I put flaps on several C/L planes that I "designed". The 1/2A planes loop tighter than prior to the addition of flaps-well, all of them do. I learned that it was a power and speed issue (oh, and experience) that made the planes not perform the way I wanted them to. I put flaps on them, and the response is more immediate to control input. It doesn't make it more difficult to fly, it just 'sharpens' the reaction to control input. The planes I made were kind of ugly, but it was to perform a task. If it flew like I wanted it to, I could use the dimensions, and build a 'good' one. If you can figure a way to install flaps after you fly it in a 'stock' configuration, do that, and determine if you want them or not. I would rather not have the complexity, or weight associated with them, if the plane performs well without them.
That's my two cents, and if I had all the 2 cents that came with the advice I'd been given, I'd have 5 million dollars.
That's my two cents, and if I had all the 2 cents that came with the advice I'd been given, I'd have 5 million dollars.
GUS THE I.A.- Gold Member
- Posts : 359
Join date : 2012-08-15
Location : Wichita, Kansas
Re: Wing Flaps
This is the 1/2A full fuse and flapped plane I want to build. Everyone says it's a great stunter. The Pinto!
http://www.rsmdistribution.com/index-2.htm
http://www.rsmdistribution.com/index-2.htm
duke.johnson- Diamond Member
- Posts : 1734
Join date : 2012-11-05
Age : 52
Location : Rochester, Washington
Thats the one!
Duke, Perfect! Thats the best looking 1/2 A model out there! I am also looking at the Black Hawk "Sky King" with flaps to start learning with!
What size Cox Engine would you use? I am looking at the Super Bee & Bumble Bee for more power, they both go up to 20,000 RPM.
Thanks for all the fast replys! RK Flyer
What size Cox Engine would you use? I am looking at the Super Bee & Bumble Bee for more power, they both go up to 20,000 RPM.
Thanks for all the fast replys! RK Flyer
RK Flyer- Gold Member
- Posts : 274
Join date : 2013-07-16
Location : Somerset, Kentucky
Re: Wing Flaps
The pinto will be underpowered with a reed engine. A Tee Dee or Medallion are listed as the smallest options.
Phil
Phil
pkrankow- Top Poster
- Posts : 3025
Join date : 2012-10-02
Location : Ohio
Re: Wing Flaps
pkrankow wrote:The pinto will be underpowered with a reed engine. A Tee Dee or Medallion are listed as the smallest options.
Phil
Phil, I guess I have to do more research on the newer Engines, I was thinging that more RPM (20,000 ) would equal more power. I need to get one in the next couple weeks!
I am working on a Dumas Kit for the "Red Linon Racer", it a rubber powered kit but I am going to beef it up by adding to the wing & body structure and covering the whole plane with Balsa wood 1/16 x 6". I am using 1/8 plywood for the engine firewall the landing gear and bell crank mounts.
Thanks, RK Flyer
RK Flyer- Gold Member
- Posts : 274
Join date : 2013-07-16
Location : Somerset, Kentucky
Re: Wing Flaps
The problem with a reed valve isn't so much the power it's their lack of ability to stunt without cutting out due to the integral tank design.
However, we have a member that runs a reed valve on pressure and it works well. It's an option, but with something like the Pinto which was designed around a TD/Medallion it would require modification. By the time you sorted that out it would just be easier/cheaper to use a TD.
My thoughts anyway.
Ron
However, we have a member that runs a reed valve on pressure and it works well. It's an option, but with something like the Pinto which was designed around a TD/Medallion it would require modification. By the time you sorted that out it would just be easier/cheaper to use a TD.
My thoughts anyway.
Ron
Cribbs74- Moderator
-
Posts : 11895
Join date : 2011-10-24
Age : 50
Location : Tuttle, OK
Wing Flaps
Ron & All.......
The Red Lion is moving along and I really need to get an engine for it soon. So I'll move this to a new post about the type of engine I'll need for a 1/2 A Stunt plane. The Pinto is high on that list, I can practice with the Red Lion first.
I have to say that I've been thinking about flying again since I am now retired and its this FORUM that has gotten me started!!
RK Flyer
The Red Lion is moving along and I really need to get an engine for it soon. So I'll move this to a new post about the type of engine I'll need for a 1/2 A Stunt plane. The Pinto is high on that list, I can practice with the Red Lion first.
I have to say that I've been thinking about flying again since I am now retired and its this FORUM that has gotten me started!!
RK Flyer
RK Flyer- Gold Member
- Posts : 274
Join date : 2013-07-16
Location : Somerset, Kentucky
Re: Wing Flaps
I'll chip in before you start the new engine thread. I agree, if it's designed with the Tee Dee in mind, it will also balance more easily and be tougher than if you build the "optional" radial mount firewall up front. That engine that advertises up to 20k rpm, might just eek it out, but a good running Tee Dee will spool up significantly faster in the air. When a Tee Dee unloads in the air, the scream is significantly higher pitched than it is at it's fastest on the ground.
And a relatively inexpensive new or used Norvel Big Mig .061 is a whole 'nother leap in performance for the same kind of money.
It's all just for fun though, and any way you decide to do it, it will fly.
Rusty
And a relatively inexpensive new or used Norvel Big Mig .061 is a whole 'nother leap in performance for the same kind of money.
It's all just for fun though, and any way you decide to do it, it will fly.
Rusty
_________________
Don't Panic!
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
RknRusty- Rest In Peace
- Posts : 10869
Join date : 2011-08-10
Age : 68
Location : South Carolina, USA
Re: Wing Flaps
I launch my pressurized reeds at about 18,500 rpm, same as my tee dees. The reeds don't have near the pull as a tee dee in the air though. They don't pull the plane as fast and they bog down significantly more in maneuvers. The tee dees seem much more "tourqey".Cribbs74 wrote:
However, we have a member that runs a reed valve on pressure and it works well.
Ron
Jim
JPvelo- Diamond Member
- Posts : 1972
Join date : 2011-12-02
Age : 56
Location : Colorado
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