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Posted by shigetyann | Feb 18, 2012 @ 10:01 AM | 6,975 Views
Hi all
I still have been modifying a s288 ICON-A5 by Hobby King or DZ-Hobby; its origin seems the same.
Now I'm seeking the suitable angle of motor thrust. From many experiences of landing, I got more up-thrust adding a wood block.
It works better. When I move the throttle down quickly, the plane didn't apt to its nose up.
Posted by shigetyann | Feb 03, 2012 @ 09:50 AM | 8,357 Views
Hi all

I was asked about the mixing way to touch down more easily on s288 ICON-A5.
So I descided to open my mixing program widely.
The s288 ICON-A5 has a tendency that when you cut a motor power suddenly from horizontal flight, itís inclined to nose up. The tendency is not big though, itís a little difficulty to descend the plane without any control.
If you are accustomed to fly R/C airplane, you may have elevator down slightly to keep its speed, or to make it to be in a gradual decline.
The Mixing from throttle position to elevator makes control a little easier.
The throttle curve from -100% to -75% has gradual gradient. This range matches to the plane keep a speed and gentle declination to touch down.
You should not to flare just at touchdown, or the plane starts porpoise.
The easy avoiding way from porpoise is to power off immediately when the plane has a first touchdown.
Letís enjoy!
ICON A5 very best of touch and go (3 min 40 sec)

Posted by shigetyann | Jan 23, 2012 @ 08:46 AM | 7,868 Views
At last I finished hull's modificatiion.
The last work of the fuselage was to make main steps of hull.
There is a question whether I should replace dark colored canopy with a clear one or not.
Posted by shigetyann | Jan 18, 2012 @ 11:34 AM | 7,344 Views
Hi all

I had some advance making ICON-A5 by DZ hobby. I built in head lamps and fog lamps.
Small key-chain LED lights are useful as its brightness is enough even in the day light.
Yellow LEDs are good choice as fog lamps.
Now itís time to make more.
Posted by shigetyann | Dec 19, 2011 @ 11:25 AM | 8,195 Views
I agree small ICON A5 is groove. Even though a little luck of buoyancy force moment to lateral direction, as side-floats donít have enough distance between both, this design gives us the opportunity to open the future design.

This model flies well and pretty smooth in calm circumstances only.

When we fly it In the cross wind, its fuselage side geometry forces us hard to control on the water. And more, its hall shape isnít suitable to take off from the water. Both side edges of the hall are dull, so the water running up along the surface of the fuselage. The water makes the fuselage down force into the water. This calls for more power to take off. This looks not smart like the real plane. I added plates the both side edges of the hull, from nose to the step. The plates bounce the water and gain the lift.

ICON A5 very best of touch and go (3 min 40 sec)

Posted by shigetyann | Nov 22, 2011 @ 09:45 AM | 8,605 Views
Hi, Iíve finished making the nose gear hatch.
I constructed it on a hull that was made by vacuum foaming.
The hull is made of thin plastic plate, itís reinforced by FRP.
Even though, it still has flexibility, the each center of hinges needs certain continuity.
I made the centers using long carbon rods. This way seems to be correct. Even if the hull will be vended, the hinge shall work.
Posted by shigetyann | Sep 13, 2011 @ 07:41 AM | 8,248 Views
Still constructing ICON A5
The second big challenge is to refine propeller position.
When I saw my friendís DZ ICON A5, its noise was heavy like a nitro plane.
He suggested that noise is generated when a rotating propeller in high speed closes to tailing edge of a main wing, and a share stress of the air between a propeller and the tailing edge causes pressure gradient.
He moved back the motor 20mm using spacers. He succeeded a good result. The noise was reduced significantly.
Posted by shigetyann | Aug 26, 2011 @ 10:02 AM | 11,304 Views
Before hook up this model, I broke down side floats, main gears and also infirm nose gear.
Then I reinforced a backyard of fuselage against horizontal direction using carbon rods, vertical direction later. And also replace reliable retract gears, main and nose adding cushioning spring. When I attached the side floats, I replaced from steel rod to carbon rod to reinforce them.
Posted by shigetyann | Aug 12, 2011 @ 10:06 AM | 8,519 Views
I finally start out making ICON A-5 A488 slowly, with some information from the thread ďNew icon a5 by nfd hobbyĒ, from my friends and with my new ideas.
Posted by shigetyann | Jun 30, 2011 @ 09:32 PM | 9,279 Views
I finished this movie. I'm happy if this movie could help your flight sebArt MIG29.



SebArt MIG29 3D EDF 4th Flight July 25 2011 (5 min 21 sec)

Posted by shigetyann | Jun 29, 2011 @ 10:48 AM | 9,774 Views
I maidened SebArt MIG-29.
I already finished four flights. I get used to do more easily to Cobra and Hover.
Now Iím practicing 3D maneuvers.
Posted by shigetyann | May 13, 2011 @ 06:41 PM | 8,456 Views
Hi guys!

Clubís members and I tried to take a FPV.
Four members joined an attempt.

My powered glider, Pulsar 3200, mounted two high vision cameras.
Other three members took of one after another and flew close my plane, rendezvous.

FPV Gliders Rendezvous @ NMFC (5 min 35 sec)

Please enjoy the FPV.

Thank you!
Posted by shigetyann | Mar 14, 2011 @ 11:23 AM | 9,275 Views
I shakedowned and maiden flighted "Spot on" mounted YS .63 4st gas motor last weekend.
It's about three years since last brand-new gas motor airplane.
The design is very good to fly.

Spot on is RTF model.
Wing Span 53.5 in / 1360 mm
Wing Area 538 sqin / 34.7 sqdm
Flying Weight 5.3 lb / 2400 gram
Fuselage lenghth 57 in / 1450 mm

Posted by shigetyann | Mar 02, 2011 @ 01:25 PM | 9,185 Views
Hi all!

I got good solution after getting least modifications, without step figures and add a mixiting program from throttle to elevator.
These stuffs made perfect touch down on water more easily.

Please check a video bellow.

ICON A5 very best of touch and go (3 min 40 sec)

Thank you!
Posted by shigetyann | Feb 23, 2011 @ 06:34 AM | 9,013 Views
Itís the pretty tragedy in New Zealand attacked by the epicentral earthquake.
I'm pretty sorry.
Also in Japan weíre afraid of some big earthquakes in near future.

BTW this winter is not normal in Japan.
My area is known as warmer than near north areas in the same prefecture though, snow is pretty rear.
On the morning I couldnít help shooting FPV near my house. And I got it.
Iím pretty happy to open this movie. Please enjoy this short footage.

Rare Scenery from the sky Snowing on Nishimikawa 西三河の雪 (2 min 7 sec)

Posted by shigetyann | Feb 22, 2011 @ 01:03 PM | 9,047 Views
It's my pleasure to introduce a tiny electric seaplane.
It's wingspan is only 640mm and its weight is only 200gram with 2cell, 450mAh Lipo.
This tiny plane, Macchi-M33 Savoiya mod, is a kit released by Arcadia. It's cool. Kunidon who take my planes videos anytime made this. This seaplane has 50CX class brushless motor and 450mAh 2cell Lipo. It flies easy as its small size, without when it turns, it's easy to be spiral dive though.
Please enjoy the movie.

ラジコン水上機 サボイヤ Macchi M33 MOD Savoia (6 min 11 sec)

Posted by shigetyann | Feb 10, 2011 @ 06:34 AM | 9,221 Views
Hi! Everyone
I introduce one of my scale gas model planes, SKHOI 31, an aerobatics plane.
This model, mounted an OS .90 4st, is RTF (means Ready To Fly but for me Ready To Fight, because of many modifying) that had released by HIROBO as famous R/C helicopter.
I modified especially around cockpit. Meters have been scaled down correctly, by reporting the real, drown using a soft PowerPoint then translate pdf files, brought to a local photo shop (absolutely not a program name), developed and adjusted to the model size. Also the fuselage around cockpit, I replaced from wood (mainly balsa) to carbonate pipes for skeletons. Finally I added smoke system.
As its length of fuselage is shorter than standard model planes, itís easy to do snap rolls, spins also lamcevak! (see a picture; flying sideways)
In 2003, I plumped Jurgis and also Svetlana about their deeds at HAUTE VOLTIGE held at MOTEGI in Japan.
Thanks Jurgis for allowing taking many pictures of Su-31 willingly.
Two flying pictures were taken by my clubís member.
In a picture, magazines are fakes, smaller than genuine. (sorry)
Iíll take movies of this model doing some maneuvers.
Posted by shigetyann | Jan 26, 2011 @ 02:05 AM | 10,074 Views
This time I made almost standards. And I colored it vanilla.
Some person knows small one has easy to porpoise. Iím modifying bottom (but not satisfied enough yet). Iím making every effort to improve it. The hardness of transition from taxi to planning is within an allowance by controlling technique.
There isnít enough area near my house; ponds, lakes and rivers to fly big one and gas planes.
Posted by shigetyann | Jan 18, 2011 @ 10:19 PM | 9,187 Views
Hi all!

Finary I finished a footage that we founded Macchi Club!?.
This event was done on Nov. 21. 2010.
please enjoy it.

Founded Foamie Schneider Trophy Race シュナイダー カップ レース (7 min 16 sec)

Also, if you have time, please glance a thread bellow.