a2_sol_cee4674_09

a2_sol_cee4674_09 - Dr. Antonio A. Trani Associate...

Info iconThis preview shows pages 1–10. Sign up to view the full content.

View Full Document Right Arrow Icon
NEXTOR/Virginia Tech - Air Transportation Systems Lab 1 Dr. Antonio A. Trani Associate Professor of Civil Engineering Virginia Polytechnic Institute and State University February 10, 2009 Blacksburg, Virginia
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
NEXTOR/Virginia Tech - Air Transportation Systems Lab 2
Background image of page 2
NEXTOR/Virginia Tech - Air Transportation Systems Lab Problem # 1 a) Estimate the percentage of aircraft below 12,500 lb. that can be operated from Virginia Tech airport (BCB) on a routine basis. b) BCB wants to expand its current runway to serve 75% of the aircraft with weights below 60,000 lb. using the 90% useful load curves. Find the runway extension needed. c) What is the main drawback of the curves shown in FAA AC 5325-4b for aircraft below 60,000 lb.? Comment. 3
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
NEXTOR/Virginia Tech - Air Transportation Systems Lab Solution to Part (a) 4 Airport: BCB (Blacksburg) – Airport elevation = 2,132 feet – Mean daily maximum temperature of the hottest month of the year = 83 o F – 0.4% grade up – Existing runway = 4539 feet 4,400 feet
Background image of page 4
NEXTOR/Virginia Tech - Air Transportation Systems Lab Solution to Part (a) To serve 100% of the population below 12,500 lb the airport needs ~4,400 feet of runway (uncorrected) Correct for grade at 10 feet for every foot of difference in runway elevation Delta Elevation = 4539 *0.4%/100% = 18.2 feet Correction = 182 feet Total runway length needed = 4,400 + 182 = 4,582 feet Therefore BCB is prepared (within 50 feet) to serve 100% of the aircraft population whose MTOW < 12,500 lb. 5
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
NEXTOR/Virginia Tech - Air Transportation Systems Lab Solution to Part (a) Small Aircraft with 10 or More Passenger Seats 6 Airport: BCB (Blacksburg) – Airport elevation = 2,132 feet – Mean daily maximum temperature of the hottest month of the year = 83 o F – 0.4% grade up – Existing runway = 4539 feet 4,400 feet
Background image of page 6
NEXTOR/Virginia Tech - Air Transportation Systems Lab Solution to Part (a) Aircraft with 10 Passenger Seats or More To serve 100% of the population below 12,500 lb the airport needs ~4,400 feet of runway (uncorrected) Correct for grade at 10 feet for every foot of difference in runway elevation Delta Elevation = 4539 *0.4%/100% = 18.2 feet Correction = 182 feet Total runway length needed = 4,400 + 182 = 4,582 feet Therefore BCB is prepared (within 50 feet) to serve 100% of small aircraft with 10 seats or more. 7
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
NEXTOR/Virginia Tech - Air Transportation Systems Lab Use Figure 3-1 and 75% of fleet with 90% useful load Runway length = 6,700 feet (without correction) 8 Part (b) Runway Length Calculation Mean daily maximum temperature o F
Background image of page 8
NEXTOR/Virginia Tech - Air Transportation Systems Lab 9 Runway Length Estimation (BCB) Corrections Effective gradient correction ( takeoff case ) – Increase runway length by 10 feet (3.05 meters) for every foot (0.305 meters) of runway elevation difference (low-high) – 0.4% grade implies a delta elevation of around 18 feet Increase Runway Length by 180 feet (or 6880 feet)
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 10
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 46

a2_sol_cee4674_09 - Dr. Antonio A. Trani Associate...

This preview shows document pages 1 - 10. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online