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Note como a manipulação dos anéis concêntricos afeta o formato em “V” da asa. Esta é uma das possíveis explicações para o porquê de os anéis concêntricos poderem ser usados para personalizar a intensidade de high-siding necessária. Além disso, mudar os anéis concêntricos intermediários afetará o valor medido para o ângulo do recuperador de mergulho externo. Preste atenção nisto.
Conhecimento Adquirido
- levantadas súbitas de nariz em altas velocidades, com marcha toda caçada, ao entrar em rajadas (térmicas), podem ser consertadas através do abaixamento dos recuperadores externos, de forma a que a ponta da asa, o recuperador externo, o recuperador interno e a quilha estejam aproximadamente alinhados. Levantar os recuperadores externos causará tendência a levantar o nariz enquanto que abaixá-los causará a tendência inversa, ou seja, abaixar o nariz (mergulhar).
- rebaixar os recuperadores externos melhora a maneabilidade uma vez que eles limitam menos o movimento da vela. Esta ação também reduz o panejamento (vibração do bordo de fuga com o efeito do vento) até certo ponto.
- Se a asa voa em linha reta e ambos os anéis concêntricos da ponta estão rotacionados para cima, a asa necessitará de menos high-siding. Se estiverem rotacionados para baixo a asa necessitará de mais high-siding.
- Ao ajustar os anéis concêntricos intermediários obtemos um efeito similar ao mencionado no item acima, mas com uma sensação diferente.
- Se uma asa tem tendência a virar em uma direção, isto se dá frequentemente porque o anel concêntrico de ponta do lado oposto deveria ser rotacionado para cima de forma a contrabalançar a tendida (rotacionar para cima o anel concêntrico de ponta do lado oposto pode ser visto como um “contrapeso aerodinâmico”).
- Para melhor ganhar altura, a asa deve ser regulada de forma a que ela enrosque melhor nas térmicas com 1/3 da marcha caçada (isto é, a asa voará lenta demais com a marcha solta).
- Reforços no bordo de ataque são úteis nos 4 painéis internos (próximos ao nariz). Eles fornecerão uma pressão de barra mais sólida em altas velocidades uma vez que o bordo de ataque se deforma menos. Mas é duvidoso se usar Mylar compensará o aumento de peso; carbono deve ser usado preferencialmente (os reforços de bordo de ataque de carbono estão disponíveis na Moyes).
- Geralmente mais tensão no bordo de ataque fornece melhor maneabilidade e mais performance, porém também maior panejamento. Excesso de tensão no bordo de ataque faz com que as pontas da asa se levantem, reduzindo assim a performance.
- Menos reflexo* (“reflex”) na seção central fornece melhor razão de subida e melhor planeio em baixas velocidades, mas muito menos pressão na barra. Evite isto.
*Reflex, ou “reflexo” numa tradução livre, é o termo que descreve a angulação para cima da parte final das talas transversais mais próximas à seção central da vela (nas Litespeed apenas as talas 1, 2, 3 e 4 apresentam reflexo). O reflexo é um dos parâmetros de projeto que afetam a estabilidade do aerofólio.
Well I got the hardest part done as I made the first 2 turnpoints,
unfortunately I got too low over the forest just as a thermal was
starting to form. The guys 200mts above me got it but I had to land in
rough air, actually it was a crash landing in the wild grass, I let go
of the bar and got no damage to the glider or me.
That's the 8th and last flight of the week, I´m trashed. Tomorrow we get back to real life!
The track log for this flight is at:
http://www.xcbrasil.org/modules.php?name=leonardo&op=show_flight&flightID=9336
This is really way beyond my wildest expectations!! Me and Marcello reached the Esplanada for the 4th time!! We met Dan Engelhart who was flying over the border of the lake and glided into town altogether!
The feeling of ecstasy as you land after cross-countrying for hours has no equal! We've been
fully rewarded for this trip!
As I was helping Dan carry his glider towards the paddock, he was still under full-emotion mode and solemnly declared "This is better than being an austronaut!"
For those of us who have dreamed about being an astronaut, to hear this coming from a guy who has done dozens of Esplanadas, competition goals and serious cross-countrying and feels as enthused as ever, this has got to mean something!
It means we were having some serious fun here, my friends!
The track log for this flight can be found at:
http://www.xcbrasil.org/modules.php?name=leonardo&op=show_flight&flightID=9337
Today I decided to skip the competition task, cause we were supposed to be flying over hostile territory, so we took the choice to try and reach Brasilia again.
As the competition gaggle went to the left, a handful of free-flyers got the direct Brasilia route all for themselves. As I crossed the gap I again found myself low and had to
perform a low save just when things were starting to get very warm,
it was such a pleasure to regain the altitude and the chilly wind!
From Brasilinha I was joined by my teammate Marcello and we did the
remainder of the flight working as a team! It was an undescribable
pleasure to reach the Esplanada for the 3rd time, it's much more
than I expected. Tomorrow I shall follow the task lest it is chosen
over indian country again.
This track log is at:
http://www.xcbrasil.org/modules.php?name=leonardo&op=show_flight&flightID=9338
And the video that Marcello produced is here, he´s got some amazing images:
Well I guess I wasn´t feeling like flying so much today. I felt tired at launch, I felt tired in the air. As my team mate Marcello felt about the same way, as soon as I decided to land, after not putting up much of a fight, I heard him calling on the radio and telling us that he, too, was going to land.
Anyway it was better for the morale than just staying at the hotel in Brasilia resting. At least we went to the ramp, faced the scaring winds and had perfect launches. This is good for flying again tomorrow without much anxiety.
This track log is at:
http://www.xcbrasil.org/modules.php?name=leonardo&op=show_flight&flightID=9339
Me and Marcello both reached rhe Esplanada today. Marcello made the start but gave up the task after the Start. I too made the start, a 27km enter cylinder around
Formosa airport, but I kept trying to push towards the airport itself which was the
next turnpoint. Halfway into this next turnpoint I gave up the task as
well and aimed towards the Esplanada, arriving 3:15hrs after takeoff.
Me and Marcello have two Esplanadas each now! We are sooooo tired
already and there's 4 flights to go yet!!
I was lucky enough to take 2 shots of me flying over Brasilia. The camera was in my pocket and as I arrived a little low over the city, I had to hurry and take the pictures as I planned my approach opened my harness and got ready for landing in a couple minutes! This is one of the pics:
My track log for this flight is at:
http://www.xcbrasil.org/modules.php?name=leonardo&op=show_flight&flightID=9340