SHINDEN J7W1 BUILD

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WWW Aeromodelling GR

Aeromodelling GR - IBabylon ThemeClassic YaBB SE ThemDelta TPNetBiz TPOmega TPSMF Default Theme

[ArgyrisGiannetakis]

Γ�áé Γ�áôáðëçΓ�ôéΓ�ΓΌ!Γ…Γ·ΓΉ ìéëΓ�óåé ìå ôïí Γ–Γ�ëï ãéáðùíΓ�æï áðï ôïí éïõíéï!ÅôïéìΓ�æù ìéá áíáëõôéΓ�Γ� Γ�ñåõíá ãéá üëá ôá RC SHINDEN ðïõ ΓµΓ°Γ�Γ±Γ·Γ―ΓµΓ­ ìå ΓΉΓ±Γ΅Γ�Γ΅ âéíôåΓ�Γ�éá Γ�áé öùôï !Ôá Γ�Γ·ΓΉ ìáæΓ�øåé Γ�áéñï ôþñá  áëëΓ� Γ³Γ�ìåñá Γ¥Γ�ìáé down øõ÷ïëïãéΓ�Γ� ìå ôïí Γ�ëåîΓ�Γ�Γ― ìáò ïðüôå ôéò åðüìåíåò Γ¬Γ�ñåò èá åðáíΓ�ëèïõìå.

[ArgyrisGiannetakis]

Å÷ïõí áñ�åôï� ðñïóðáè�óåé íá ��íïõí ôï Shinden íá ðåô�îåé �áé ë�ãïé ôï �÷ïõí �áôáö�ñåé!Õð�ñ÷ïõí ë�ãåò ðëçñïöïñ�åò ãéá ôï shinden ,�áé ïé ðåñéóóüôåñåò äéáäüèç�áí áðï ôï äéáäý�ôéï ôá ôåëåõôá�á ÷ñüíéá.�áëéüôåñá çôáí ë�ãåò ïé ðëçñïöïñ�åò �áé ãéá èåùñ�á canard.
�óï áöïñ� ôçí ðô�óç ôá ðñ�ãìáôá äåí å�íáé �áé ðïëý �õ�ïëá.�ëá å�íáé áí�ðïäá óå áõô� ôçí ó÷åä�áóç.Åôóé ðñ�ðåé íá ó��öôåóáé �áé åíôåëþò áí�ðïäá !
Ëéãç èåùñΓ�Γ΅ ãéá ôá canard .Γ”o canard ëåéôïõñãåΓ� ðáñΓ�ëëçëá ìå ôçí ðôΓ�ñõãá Γ�áé ΓΌΓ·Γ© áöáéñåôéΓ�Γ�.Γ�áñΓ�ãåé ôï 20% ôçò óõíïëéΓ�Γ�Γ² Γ�íôùóçò Γ�áé ðñΓ�ðåé Γ­Γ΅ Γ¥Γ�íáé Γ³Γ¥ ðëΓ�Γ±Γ§ óõíåñãáóΓ�Γ΅ ìå ôçí ðôΓ�ñõãá.Ôï Γ�Γ�íôñï âáñïõò CG õðïëïãΓ�æåôáé Γ�áé áðï ôéò äýï åðéöΓ�íåéåò !Γ…Γ°Γ�óçò ôï CG Γ¥Γ�íáé ðïëý ðåñéïñéóìΓ�Γ­Γ―!ÖáíôáóôåΓ�ôå ìéá áðüóôáóç 3 ìå 4 cm (óôï äéΓ�ΓΌ ìïõ) shinden  ìå 45cm Γ·Γ―Γ±Γ¤Γ� ðïõ Γ¬Γ�Γ³Γ΅ Γ¥Γ�Γ¥Γ� åáí Γ¥Γ�íáé ðïëý ìðñïóôüâáñï ôï âáñïò óôï canard Γ¥Γ�íáé ìåãΓ�ëï ãéá Γ­Γ΅ ôï áíôΓ�îåé Γ�áé áí Γ¥Γ�íáé ðéóþâáñï äåí óõíåñãΓ�æåôáé ìå ôçí ðôΓ�ñõãá Γ�áé Γ¥Γ�íáé õðåñåõáΓ�óèçôï!Γ…Γ°Γ�óçò ìåãΓ�ëï Γ�áé âáóéΓ�ΓΌ ñüëï ðáΓ�æïõí Γ―Γ© ãùíΓ�åò ôïõ canard!Γ�Γ�íôá ðñΓ�ðåé ôï canard Γ­Γ΅ Γ�÷åé ðéï ìåãΓ�ëç èåôéΓ�Γ� ãùíΓ�Γ΅ áðï ôçí ðôΓ�ñõãá.Γ�õôü Γ�÷åé ΓΉΓ² áðïôΓ�ëåóìá ôï canard Γ­Γ΅ óôïëΓ�ñåé ðñþôá Γ�áé Γ°Γ�íôá ðñéí ôçí ðôΓ�ñõãá!Γ�Γ¥ áõôü ôïí ôñüðï ôá canard Γ¥Γ�íáé stall proof!Γ�áñüëëá Γ�áé áõôΓ� ìðïñïýí Γ­Γ΅ óôïëΓ�Γ±Γ―ΓµΓ­ áðï Γ«Γ�èïò CG.
�åñé��ò öùôü áðï äé�öïñïõò ìïíôåëéóô�ò ðïõ �áôáó��õáóáí äé�öïñá ìåã�èç ,óõí�èùò ìé�ñ� áëëá �áé ìåã�ëá üðùò èá äïýìå.

[ArgyrisGiannetakis]

 

[ArgyrisGiannetakis]

 

[ArgyrisGiannetakis]

Γ‡ ðéü ðñüóöáôç Γ�áé ðéï åíôõðùóéáΓ�Γ� Γ¥Γ�íáé ôïõ Γ¶Γ�ëïõ ìïõ JOSEF !Åíáò Γ�áôáðëçΓ�ôéΓ�ΓΌΓ² ãåñìáíüò áåñïìïíôåëéóôΓ�Γ² ðïõ Γ�÷åé Γ�áôáóΓ�åõΓ�óåé Γ�áôáðëçΓ�ôéΓ�Γ� ìïíôΓ�ëá!Γ� JOSEF Γ�áôá ôçí äéΓ�Γ±Γ�åéá ôïõ ôåëåõôáΓ�Γ―Γµ Γ·Γ±ΓΌΓ­Γ―Γµ Γ�áé áõôüò Γ�áôáóΓ�Γ�õáóå Γ�Γ­Γ΅ ìåãΓ�ëï SHINDEN Γ�áé ðñéí ôï ôåëåΓ�ùóåé ìå Γ�øá÷íå áðåãíùóìΓ�Γ­Γ΅ ãéá Γ­Γ΅ Γ¬Γ�èåé ðåñéóóüôåñåò ðëçñïöïñΓ�åò ãéá ôïõò ëïãïõò ðïõ Γ�óðáóá ôï äéΓ�ΓΌ ìïõ!Γ�ôáí ôåëéΓ�Γ� ΓΆΓ±Γ�Γ�Γ¥ ôï ìáéë ìïõ Γ�áé ìéëΓ�óáìå ôïõ Γ�óôåéëá üëåò ôéò ðëçñïöïñΓ�åò ðïõ Γ¥Γ�Γ·Γ΅ Γ�áé ôçò ôåëåõôáΓ�åò áíáëõôéΓ�Γ�Γ² öùôïãñáöΓ�åò áðï ôçí ÉáðùíΓ�Γ΅ ðïõ ìïõ óôåΓ�ëáí Γ�áèþò Γ�áé ôá ó÷åäéá ìïõ !Ôï Γ�÷åé öôéΓ�îåé áíôéãñΓ�öïíôáò Γ�áé áõôüò Γ�Γ­Γ΅ óôáôéΓ�ΓΌ ìïíôΓ�ëï 1\48.Γ…Γ�íáé 2.40 17 Γ�éëΓ� 1/5 scale 64cc.Γ�ðüöΓ�óéóå Γ­Γ΅ öôéΓ�îåé ðáñΓ�ëëçëá Γ�áé Γ�Γ­Γ΅ öåëéæïëΓ�íéï  ìéΓ�ñüôåñï 1.30 cm ãéá Γ­Γ΅ ΓΆΓ�ëåé üëá ôá äåäïìΓ�Γ­Γ΅ ôá äéΓ�Γ� ìïõ Γ�áé ôá äéΓ�Γ� ôïõ Γ�áé Γ­Γ΅ äåΓ� ôá ÷áñáΓ�ôçñéóôçΓ�Γ� ôïõ.Óôçí ðñþôç ðôΓ�Γ³Γ§ ôïõ öåëéæïëΓ�íéïõ Γ�ôáí ðéóþâáñï Γ�áé ôï øéëï÷ôΓ�ðçóå.Γ�åôΓ� Γ�Γ�íïíôáò ôï óùóôü ôï CG Γ°Γ�ôáîå ΓµΓ°Γ�Γ±Γ―Γ·Γ΅!Γ�Γ«Γ�Γ―Γ­ áñ÷Γ�Γ³Γ¥ Γ­Γ΅ ΓΆΓ±Γ�Γ³Γ�åé Γ�Γ�Γ±Γ§!

[ArgyrisGiannetakis]

 

[ArgyrisGiannetakis]

�á �áé ìåñé�� â�íôåï!

[ArgyrisGiannetakis]

[ArgyrisGiannetakis]

Ôïí ðåñáóì�íï éïýëéï ï josef óåô�ñéóå ôá äåäïì�íá ôïõ áðï ôï öåëéæïë�íéï óôï ìåã�ëï ôïõ shinden!H ðô�óç äåí´ð�ãå �áë� áëë� åõôõ÷þò äåí �ðáèå ìåã�ëç æçìé�.� JOSEF ôï åðéó��õáóå �áé å�íáé �ôïéìïò íá ôï îáíáäï�éì�óåé!� ëüãïò ðïõ �ãéíå ç æçìé� å�íáé ïôé å�÷å ��íåé ôá ðçä�ëéá aileron íá áíåâá�íïõí �áèþò ôï canard �áô�âáéíåé.Ôï ��áíå ãéá íá âïçè�óåé ôï canard åáí äåí ôïõ �öôáíå ç äéáäñïì� ôïõ ðçäáë�ïõ!� ëüãïò ðïõ �ãéíå ç æçìé� �ôáí ïôé å�÷å ��íåé ôï aileron åíôåëþò scale �áé üôáí áõôü áí�âáéíå ôï ÷å�ëïò ðñïóâïë�ò ôïõ ðçäáë�ïõ �áô�âáéíå �áé áõôü å�÷å óáí áðïô�ëåóìá íá äçìéïõñã�óåé drag óôï ��ôù ì�ñïò ôçò ðô�ñõãáò �áé íá óôïë�ñåé ðñþôá áõô� �áé íá ð�óåé.� ôýðïò áõôïò ôùí aileron ë�ãåôáé FRISE AILERON !Óôï Shinden ôá fries aileron ëåéôïõñãïýí óáí drag yaw �áé âïçèïýí ôá ï÷é ôüóï effective rudder ôïõ Shinden!

[ArgyrisGiannetakis]

�á �áé ç ðô�óç!

[ArgyrisGiannetakis]

�áé ôï MAIL ðïõ ìïõ �óôåéëå

 

Meanwhile we have some news, not really good ones.

After successful test flights with the styrodur Shinden (half size) Joseph modified his large Shinden with the same settings and flew it:


https://www.youtube.com/watch?v=Yv_vAxDFQ3Y&list=UUrQO1hZqKQWVoYD_6NjtcBQ

The test flight failed because the side thrust of the engine did not occur to the correct side, the model side sliped to the right). Furthermore, Josef did not correct the side slip by using the rudders.

In addition, Josef has added some elevator function with the ailerons to support the Canard. He is using an aileron system β€�Frise’ where  their leading edges at upward deflection rises downwards from the wings underside, sticking out to support the rudder effect in turning flight. The admixing as elevators both lower edges of course slow the airflow under the wings, which lift is anyway already weakened by the landing gear openings and legs. The speed also was not increasing by that as Joseph gave a little more elevator because of the forest. Thus, the wrong side thrust was increasing more and more so that the side slide angle grow bigger  andbigger, until then the strong side airstream turned the model. Thus, the speed was quite gone now and the Shinden crashed.

Joseph had at this time the feeling that the engine was not running at peak performance, he didn’t measure the revolutions of the engine again before the flight.

By a big chance the model crashed pretty much on the nose, this cushioned most of the impact The fuselage nose was pretty smashed, the nose landing gear and right hand main landing gear were badly bent; the right hand vertical stabilizer was broken.

Meanwhile Josef has repaired his large Shinden, he is just waiting for the repaired landing gears.

 
Josef corrected the side thrust of the engine on his Styro-Shinden to zero and the engine down thrust to minus 2.5 degrees (Spinner upwards). The model now flies much better than ever before.


Regards, Hartmut

[w1ndsurfer]

�ñãýñç,
Γ�áôáðëçΓ�ôéΓ�Γ�Γ² Γ―Γ© ðëçñïöïñΓ�åò, Γ�áé äåΓ�Γ·Γ­Γ―ΓµΓ­ ðüóç Γ�ñåõíá Γ�÷åéò Γ�Γ�íåé óôï ìïíáäéΓ�ΓΌ áõôü Γ¨Γ�ìá. 

�éá åñþôçóç �÷ù:

�é É�ðùíåò ðïõ ôï ó÷åä�áóáí ôé �èåëáí íá ðåôý÷ïõí;
�á øáñþíåé ï å÷èñüò ìçí �áôáëáâá�íïíôáò ôé å�íáé áõôü ðïõ âë�ðåé �áé íá ôïí �áôáñ�ðôåé �íá Zero/Hien/Tony/Raiden?

Ãéáô� íá �åñä�óåé áåñïìá÷�á åíáíô�ïí P-51/P-47/P-38 ìå ôüóï ðïëýðëï�ï ÷åéñéóìü äåí ôï âë�ðù ðéèáíü!

[w1ndsurfer]

+100 ãéá ôá Frise ailerons

Ôá �÷ù åöáñìüóåé óå 2 ìïíô�ëá �áé ôá âñ�ó�ù ðïëý scale óôçí ðô�óç. Ôá roll å�íáé ��ðùò ðéï áñã� áðü üôé óôá áðë� aileron (ìåíôåó�ò óôçí ì�óç ôçò áåñïôïì�ò), áëë� å�íáé axial roll ÷ùñ�ò adverse yaw.

[ArgyrisGiannetakis]

Γ–Γ�ëå Γ�Γ�Γ�Γ― ôï ó÷åäéΓ�óáí óáí Γ�áôáäéùΓ�ôéΓ�ΓΌ Γ�áé áíá÷áéôçóôéΓ�ΓΌ!Çôáí õðåñåõåëéΓ�ôï óáí èåùñΓ�Γ΅ Γ�áé ôüôå áëëá Γ�ìåíå Γ­Γ΅ áðïäåé÷èåΓ� Γ�áé óôçí ðñΓ�îç!Çôáí ôá÷Γ�ôáôï 750+ õðïëüãéæáí áðï ôéò ðñþôåò Γ¥Γ�äüóåéò Γ�äç, ëüãï ôçò Γ�ñéóôçò áåñïäõíáìéΓ�Γ�Γ² ôïõ!Ôï canard Γ¥Γ�íáé ðéï effective ìðñïóôΓ� Γ³Γ¥ åëéãìïýò  ìå ðéï Γ�áèáñΓ� Γ±Γ―Γ§ áåñá!Γ�ëëùóôå ôï ðñïïñΓ�æáí Γ�áé óáí ôæåô ìåôΓ�.Γ…Γ°Γ�óçò ëüãï ôçò Γ¥Γ�ìåôΓ�ëåõóçò üëçò ôçò áôñΓ�Γ�ôïõ Γ³Γ¥ Γ·ΓΎΓ±Γ― Γ¥Γ�÷áí ôïðïèåôΓ�óåé 4 Γ�áíüíéá ôåñΓ�óôéá ðïõ ìå ìéΓ� ñéðΓ� Γ�Γ�Γ―ΓΆΓ¥ Γ‚-29 óôç Γ¬Γ�Γ³Γ§!! Çôáí ðïëý ìðñïóôΓ� áðï ôçí åðï÷Γ� ôïõ!!Åáí Γ³Γ�åöôïýìå ôï Γ³Γ�ìåñá ðïõ ôá canard Γ¥Γ�íáé ìïíüäñïìïò ó÷åäéáóôΓ�Γ� ðëΓ�Γ―Γ­ ãéá õðåñåõåëéîΓ�Γ΅!
�áé ìçí îå÷í�ìå ðùò ôï ðñþôï áåñïðë�íï ðïõ ð�ôáîå ðïô� �ôáí canard!!WRIGHT FLYER!!

[flaperon35]

�éáò �áé áõôï åéíáé åíá ðåñéåñãï áåñïðëáíï, èá óïõ ðù öéëå áñãõñç ôçí äé�ç ìïõ åìðåéñéá ìå åíá ðåñéåñãï áåñïðëáíï, ôï grumman X-29 ôï ïðéï �áé áõôï å÷åé ðïëõ ìåãáëá ðñïâëçìáôá óôçí ðôéóç ôïõ óáí ìïíôåëï. �õôï ëõðïí ðïõ åéäá óôçí ðñáîç åéíáé ðùò äåí õðáñ÷åé óôáíôáñ �åíôñï âáñïõò �áé ôé åíïù! �ôáí å÷åéò ìåãáëç �éíçóç óôá �áíáñ, ôï ìïíôåëï èåëåé ðéï ìðñïóôá ôï �åíôñï âáñïõò. �ôáí åéíáé ìé�ñåò ôï èåëåé ðéï ðéóï. �áé ðéï åéíáé ôï óïóôï ? �õôï äåí ôï îåñù �áé óôá ðéñáìáôá ðïõ å�áíá ôåëé�á ôï ìïíôåëï âñïíôéîå. �õôá áðï ìåíá.
�á�áñé ðáíôïò íá ôï íé�çóåéò ãéáôç åéíáé ðáíåìïñöï!
�áëåò ðôéóåéò.