Experiment dengan Kline Fogelman wings (K/F wings )

[coyo]

.....
1. Pesawat model mempunyai Bernoulli number yg kecil , sehingga Drag bukanlah masalah utama terutama yg elektrik dan dari bahan poly/coro (profilnya tipis).....

sorry koreksi dikit suhu, mungkin maksudnya bukan Bernoulli Number tapi Reynould Number

[Wind Raider]

Koreksi kayak Reynolds Number deh ....
Tapi saya sendiri kurang jelas ttg bilangan reynolds ini ...
Ada yg bisa jelasin dengan bhs yg gamblang ?

[martin]

bilangan reynolds katanya dibuku susah diterapkan pd pesawat model,,hanya utk pesawat beneran....
mumet......mumet deh.........(ada buku sederhana karangan Bpk Budi Atmoko "membuat pesawat layang model" saya kira patut disimak......ada dijelaskan bilangan itu

[shaify]

ada buku sederhana karangan Bpk Budi Atmoko "membuat pesawat layang model" saya kira patut disimak......ada dijelaskan bilangan itu

di toko mana ya bisa didptkan buku ini?

[NF]

kontak ke mas budi saja om, sekalian beli seri yg pertama "mengenal aeromodeling" terbitan perc angkasa bandung, cover warna hijau kekuningan ada gb pesawat spt acromaster dan yg kedua terbitan gramedia wana biru dgn gb glider kyosho soarus..
kalo yg pertama ada plan control line dan chuck glider dan yg kedua plan optimae rc glider.

[coyo]

Iya, kedua buku itu bagus deh, sy dulu beli yg kuning dpt bonus plan OHLG dan C/L, klo yg biru bonus plan glider optimae. Di buku yg biru ada cara itung2an bikin pesawat pake software BASIC/BASICA. Dlu pernah sy coba konversi ke Pascal tp blm selesai dah keburu ilang bukunya hiks....

Menurut Wikipedia Indonesia: http://id.wikipedia.org/wiki/Bilangan_Reynolds
Dalam mekanika fluida, bilangan Reynolds adalah rasio antara gaya inersia (vsρ) terhadap gaya viskos (μ/L) yang mengkuantifikasikan hubungan kedua gaya tersebut dengan suatu kondisi aliran tertentu. Bilangan ini digunakan untuk mengidentikasikan jenis aliran yang berbeda, misalnya laminar dan turbulen. Namanya diambil dari Osborne Reynolds (1842–1912) yang mengusulkannya pada tahun 1883.

Bilangan Reynold merupakan salah satu bilangan tak berdimensi yang paling penting dalam mekanika fluida dan digunakan, seperti halnya dengan bilangan tak berdimensi lain, untuk memberikan kriteria untuk menentukan dynamic similitude. Jika dua pola aliran yang mirip secara geometris, mungkin pada fluida yang berbeda dan laju alir yang berbeda pula, memiliki nilai bilangan tak berdimensi yang relevan, keduanya disebut memiliki kemiripan dinamis.

Reynolds Number calculator:
http://www.processassociates.com/process/dimen/dn_rey.htm

[coyo]

Sekitar 10 tahun yg lalu pernah kuliah tentang ginian, tp sekarang dah lupa semua.
Lagian skrg klo mo bikin pesawat yg praktis2 aza, gak usah pake itung2an yg njelimet, paling2 ngitung wing loading doang...

[Redblur]

hmm di luar negri masih di perdebatkan.........aku bingung nih jawabnya

aku post Flying truck dengan takik bawah
dan ada yg respon begini

My name is Dick Kline, and I'm the inventor of the Kline-Fogleman airfoil which I created over forty years ago. It has been a long and hard struggle to get people to accept my design because it doesn't fit in with present understanding of how aerodynamics works. I am very interested to hear if you have flown the Flying Truck and how well does it fly? Have you taken any videos of it in the air? If not, can you? Perhaps you could post it on YouTube. If you are able to fly it and it does fly well, it does tell me a lot about the lifting capacity of the KF airfoil. You know that the center of gravity should be further back than it would be on a conventional airfoil. Have you seen the long thread of the KF airfoil on the RC Groups?
http://www.rcgroups.com/forums/showthread.php?t=558321

I like your airplane very much. I hope it flies well. Have you seen the Flying Truck fly? Do you know who built it? Is there any video of it in flight? Popular Science is now doing an article on the KF airfoil. They might be interested in this information. It is a thrill for me to talk to someone from the other side of the world. We live in amazing times. All my best to you. May you always have the perfect flight.

Dick Kline

[jedx]

hmm di luar negri masih di perdebatkan.........aku bingung nih jawabnya

aku post Flying truck dengan takik bawah
dan ada yg respon begini

My name is Dick Kline, and I'm the inventor of the Kline-Fogleman airfoil which I created over forty years ago. It has been a long and hard struggle to get people to accept my design because it doesn't fit in with present understanding of how aerodynamics works. I am very interested to hear if you have flown the Flying Truck and how well does it fly? Have you taken any videos of it in the air? If not, can you? Perhaps you could post it on YouTube. If you are able to fly it and it does fly well, it does tell me a lot about the lifting capacity of the KF airfoil. You know that the center of gravity should be further back than it would be on a conventional airfoil. Have you seen the long thread of the KF airfoil on the RC Groups?
http://www.rcgroups.com/forums/showthread.php?t=558321

I like your airplane very much. I hope it flies well. Have you seen the Flying Truck fly? Do you know who built it? Is there any video of it in flight? Popular Science is now doing an article on the KF airfoil. They might be interested in this information. It is a thrill for me to talk to someone from the other side of the world. We live in amazing times. All my best to you. May you always have the perfect flight.

Dick Kline

wah keren Blur.. u udah menjajah RCG..

[NGL]

hmm di luar negri masih di perdebatkan.........aku bingung nih jawabnya

aku post Flying truck dengan takik bawah
dan ada yg respon begini

..... I am very interested to hear if you have flown the Flying Truck and how well does it fly? Have you taken any videos of it in the air? If not, can you? Perhaps you could post it on YouTube. If you are able to fly it and it does fly well, it does tell me a lot about the lifting capacity of the KF airfoil. You know that the center of gravity should be further back than it would be on a conventional airfoil.

...Do you know who built it? Is there any video of it in flight? .....

Dick Kline

Blur, yang penting tunjukin aja gambar atau video Flying Truck-nya kalau dah terbang. Kalau perlu tambahin komentar terbangnya bagaimana.
Kalau belum atau gak punya ya bilang aja.
Ayo! Sudah maju jangan mundur lagi.