Bahasan kita kali ini hanya menyorot lapangan terbang yang landasan pacunya berupa beton yang biasa didarati pesawat jenis Boeing bukan landasan pacu berupa rumput, seperti beberapa lapangan terbang di beberapa daerah di Pegunungan Tengah Papua yang didarati pesawat jenis Twin Otter, Pilatus atau Cessna.
Drainase lapangan terbang intinya difokuskan pada draibase area runway dan shoulder, karena runway dan shoulder merupakan area yang sulit diresapi, maka analisis kapasistas/debit hujan mempergunakan formula drainase muka tanah atau surface drainage. Kemiringan keadaan melintang untuk runway umumnya lebih kecil atau sama dengan 1,50 %, kemiringan shoulder ditentukan antara 2,50 % sampai 5 %.
Selanjutnya, kemiringan kearah memanjang ditentukan sebesar lebih kecil atau sama dengan 0,10 %, angka-angka tersebut merupakan standar atau ketentuan yang ditetapkan FAA (Federal Aviation Administration) Amerika Serikat. Genangan air di permukaan runway maksimum 14 cm, dan harus segera dialirkan. Di sekeliling pelabuhan udara terutama di sekeliling runway dan shoulder, harus ada saluran terbuka untuk drainase mengalirkan air (interception ditch) dari sisi luar lapangan terbang.
Kira-kira seperti itulah syarat-syarat mutlak drainase lapangan terbang yang harus dimilki suatu bandara, ini dimaksudkan agar hal-hal yang tidak diinginkan seperti kecelakaan pesawat akibat tergelincir di runway bisa diminimalisir, sehingga kenyamanan dan keamanan pengguna dan pemakai jasa transportasi udara dapat terpenuhi.
Look at the way my colleague Wesley Virgin's biography launches with this SHOCKING AND CONTROVERSIAL video.
BalasHapusWesley was in the military-and shortly after leaving-he unveiled hidden, "SELF MIND CONTROL" secrets that the CIA and others used to get anything they want.
THESE are the exact same tactics tons of famous people (notably those who "became famous out of nowhere") and elite business people used to become wealthy and famous.
You probably know that you use less than 10% of your brain.
Mostly, that's because most of your BRAINPOWER is UNCONSCIOUS.
Perhaps that expression has even occurred IN YOUR very own mind... as it did in my good friend Wesley Virgin's mind 7 years back, while riding an unlicensed, trash bucket of a car with a suspended license and with $3 in his pocket.
"I'm so frustrated with going through life check to check! When will I become successful?"
You've taken part in those types of conversations, isn't it right?
Your very own success story is going to be written. You just need to take a leap of faith in YOURSELF.
CLICK HERE TO LEARN WESLEY'S SECRETS