Grage Aeromodelling

Komunitas Aeromodelling Nusantara
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 Post subject: Test fly
PostPosted: 14 Dec 2012, 18:27 
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Staff Sergeant
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Joined: 11 Jul 2012, 20:55
Posts: 292
Location: Purwakarta
sebelumnya maaf kalo salah tempat ini thread pertama saya, kalo salah mohon di pindahkan pa admin :doa
saya minta pencerahannya nih suhu kmrn baru selsai bikin homemade.

spek :
body alumunium: 70cm
sayap: 100cm
ESC: HK 18/20 A
Motor: ex copotan cessna skyartech 1530kv
batre: 1500 3 s

ini video terbangnya
http://www.youtube.com/watch?feature=pl ... sdxk9XQGmo

yang jadi pertanyaan saya, CG'y udh pas cuma terbang'y klo elevator netral nukik terus, mohon bantuannya suhu :cup2


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 Post subject: Re: Test fly
PostPosted: 14 Dec 2012, 18:53 
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Technical Sergeant
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Joined: 22 Jul 2010, 20:45
Posts: 365
Location: Yogyakarta
bantu sedikit om
:hmm

mungkin yang perlu dikoreksi:
1. apakah wing dan stabilo(elevator) sudah sejajar?
2. apakah posisi shaft motor sudah lurus dengan garis tengah body?
3. jika kedua parameter tsb sudah OK, cek lagi CG nya. CG utk pesawat bermesin normalnya sekitar 1/3 lebar sayap (chord) dihitung dari LE (leading edge) sayap.

salam


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 Post subject: Re: Test fly
PostPosted: 14 Dec 2012, 19:02 
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Staff Sergeant
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Joined: 11 Jul 2012, 20:55
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Location: Purwakarta
terima kasih om.
wings dngn elevator udh sejajar, posisi motor saya center ( ga pke dwon thrust n right thrust)
udh d cek berkali2 CG pas trs tp ttp sprti itu terbngnya :crg


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 Post subject: Re: Test fly
PostPosted: 14 Dec 2012, 19:33 
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Technical Sergeant
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Joined: 22 Jul 2010, 20:45
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Location: Yogyakarta
kalo CG nya dimundurin gimana om?
ato pada wing diberi sedikit AoA (Angle of Attack) - LE dinaikkan sekitar 1-2 derajat.


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 Post subject: Re: Test fly
PostPosted: 14 Dec 2012, 20:08 
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Senior Airman
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Joined: 13 Feb 2008, 20:57
Posts: 136
Location: Semarang
Mestinya masuk ke homemade..
Foto ama plan di upload jadi bisa sama2 analisa..

Coba elevatornya di koreksi trim sampai netral dulu..
Harusnya di landing bukan di crash.. Kl gni bikin dari awal lg..


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 Post subject: Re: Test fly
PostPosted: 14 Dec 2012, 20:31 
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Master Sergeant
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Joined: 05 Nov 2012, 13:09
Posts: 440
Location: Bandung
Tu pesawat kan ada d rumah saya... :gg
post lg donk di SPAD / Coroplast Plane


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 Post subject: Re: Test fly
PostPosted: 14 Dec 2012, 20:40 
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Master Sergeant
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Joined: 05 Nov 2012, 13:09
Posts: 440
Location: Bandung
black_knight wrote:
Mestinya masuk ke homemade..
Foto ama plan di upload jadi bisa sama2 analisa..

Coba elevatornya di koreksi trim sampai netral dulu..
Harusnya di landing bukan di crash.. Kl gni bikin dari awal lg..


Elevator sih udh saya netralin om, cuma kata pilot msh gitu2 jg
padahal terbang pertama cukup aman take off n landing selamat,, ehhh terbang berikutnya nabrak pohon, nyium bumi berkali-kali sampe prop rontok... :ngs


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