Flying wings on water ! - RC Groups
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Jun 20, 2009, 08:23 AM
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Flying wings on water !

Hi everybody !

I am designing a AP ( aerial photography) plane that should be able to operate on water.

My favorite land operated AP models are flying wings. Yet, I haven't seen any flying wing on water!

I will ask before going deeper into this project:

Is there any aerodynamic handicap for flying wings to take off from water ? Anybody have seen flying wings as waterplanes ?

Thank you !

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Jun 20, 2009, 09:41 AM
SaulOhio's Avatar
I tried to get my Stryker to ROW, but it seemed to heavy for that to be practical. But there are a few water planes that almost qualify as flying wings. Have a look at the Twinkle.

And there is THIS ONE:

I suggest searching the "Let's hear it from the electric guys... Roll call, photos please!" thread.
Last edited by SaulOhio; Jun 20, 2009 at 11:47 AM.
Jun 20, 2009, 09:56 AM
fnlrun's Avatar
thats kind of a funky but good looking, odd-ball, only a mother could love plane.

I like it
Jun 20, 2009, 12:22 PM
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lake flyer's Avatar
A flying wing on floats .

Here ya go !
Jun 20, 2009, 03:07 PM
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Thank you guys ! My fears that water and flying wings don't go together very well are gone now !

Nice looking wings !

I still have to decide what shape, design, will provide maximum protection for the camera in case of a bad landing or wind gusts
Jun 21, 2009, 09:42 AM
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Airboatflyingshp's Avatar
Bujora hi in the sticky there should be a link to a previous thread on this topic...we have had this come up before search also for chat on waves/ piercing.
Deltas give good speed range stability.. designs like the beast are in effect planks on floats.

For stability you may have to think along the lines of twinfloats/hulls ..
size payload and propulsion will all have to be balanced in your final design...for an AP wing ship then a pusher set up might be preferred unless you fin mount your props Seawind /N Star, Polaris style or go for separate motor pylons.

Dow slab Blue/pink foam might give you a good start in respect of protecting your goodies and providing built in buoyancy and strength. waterproofing AP kit

Another approach Burnelli flying wing fuselage
Last edited by Airboatflyingshp; Jun 21, 2009 at 12:17 PM.
Jun 22, 2009, 09:52 AM
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Himat's Avatar

Flying wings on water

As I understand it, a main adventage a flying ving have is that there is no body, wich saves weight. A float plane/flying boat do need a hull(body) and then that adventage is lost.

Another consideration is elvator authority. In a conventional design the elevator provides pitch controll (aerodynamic) that can overcome the hydrodynamic forces as the plane aproaches take off speed. Rotation for take off can then be done with elevator movement. A flying wing with less elevator authority then need a better hull design to work well.

A flying wing from water can be done, but probably need more effort to design than a conventional layout to work well.

Jun 22, 2009, 12:24 PM
Registered User
Thank you again !

Very interesting information for a freshman on water like me !

Another good reason taken into consieration when I chose flying wings was the easy way to breake down and transport. My latest design:

Starting from this project, a boat like body with a well placed step and some wing tips pointed down for balancing would be my first choice.

I also have some canard scketches (for backwards CG , pusher configuration and why not, the excelent gliding and penetration) and the last preference (and easiest to implement )will be a twin engine design . A Twinstar like this beauty :
Multiplex Twinstar 2 Floatplane conversion (3 min 29 sec)

Jun 22, 2009, 02:00 PM
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Airboatflyingshp's Avatar
Bujora ..a point of waterplane terminology but that is not a floatplane its a Flyingboat that is to say its fuselage is designed to sit directly in the water........the floatplane sits on a separate floating hull with its fuselage above the water................................... now that all holds well until you come to a design like the Blackburn B20 ....see the sticky. Where the float is a drop down extension of the hull! The idea being to give prop spray clearance without the drag of a full depth hull in the air.

The Be3 sits with its wing on the water being a wet wing/hull design it and read the accounts of how it takes off in the could also point a way to producing a Canard........... though the guys in the Canard thread are working on one.
I posted a couple of ideas in the AP thread but how about a design like the Pelican or a Sport version of the Westland pterodactyl flying boat.

You can also use hydro planes to generate lift for a hull /wing............. I have an idea based on elements of a Ray Maelstrom design.... look in vintage and free flight also look for this beauty Grosswing
Last edited by Airboatflyingshp; Jun 22, 2009 at 06:11 PM.
Jun 22, 2009, 06:46 PM
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Airboatflyingshp's Avatar ...potential???
Jun 22, 2009, 10:06 PM
We shall serve the Lord
kingsflyer's Avatar
Check out the Polaris thread.

More like a flying delta than a flying wing, but a great flying plane none the less.

Latest blog entry: LEDs on my T-28
Jun 22, 2009, 11:51 PM
Registered User
Wow ! What a wealth of information ! Love the drop down extension of the hull ! And the wet wing/hull is another great ideea to minimize drag and even add some lift!
Both great ideeas to experiment on a cheap small scale models !
Airboatflyingshp, you have completely changed the perspective on my little project!

McD, Polaris is a beauty ! The only thing missing is the motor off gliding capabilities. And if you change the wing for better gliding, you get a Seawind like model !
Jun 23, 2009, 02:28 AM
balls to the walls
Try a flying W. they are slow, stable, and can carry quite a load. ill post pics of mine tomorrow.
Last edited by natergater; Jun 23, 2009 at 02:47 AM. Reason: Photo
Jun 23, 2009, 08:22 AM
Registered User
Airboatflyingshp's Avatar
I can help with gross wing I have more info.

Yep look at the W wings........... essentially as used on some ecranoplans..check the links on the last pages of the sticky.

Leonardo model and full size

AP link here

W -wing experimental glider below.
Last edited by Airboatflyingshp; Jun 23, 2009 at 01:25 PM.
Jun 23, 2009, 01:40 PM
Registered User
Airboatflyingshp's Avatar
Laddie M's Aquabird W wing flyingboat.

Aquabird in Vyborg Russia (1 min 58 sec)
Last edited by Airboatflyingshp; Jun 23, 2009 at 02:37 PM.

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