The Energy-State Approach to Airplane Performance CD Total L CL D Co = (a) Cruise distance...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
The Energy-State Approach to Airplane Performance CD Total L CL D Co = (a) Cruise distance T= D Cop + CD + ACDC 0.3337 0.02616 = (b) T = D = CD TOT S or L/D (c) Fuel flow (lb/h): Fuel flow (gal/h) Popes P = Mach of no. sound (0.78) (686.9) 0.82 c D (8350) (0.168) 1403 statute miles Tc 12.76 log 89,500 12.76 = WI WF - - = 0.0202 +0.00496 +0.0010 (0.02616) (268.18) (1000) = 7015.6 lb (d) Seat-miles/gal 858.4 (e) Auto has 5 seats x 20 miles/gal 7014.1 lb 7014.1(0.82) 5752 6.7 × 0.78(686.9) Speed 858.4 gal/h 12.76 loge 97,000 82,000 (the difference is in the rounding of numbers) 5752 lb/h 62.42 seat-miles/gal 100 seat-miles/gal 1.6 0.02616 auto 100 DC-9 62.42 That is, the auto provides 60% more seat-miles/gal when all seats in both vehicles are filled. A DC-9-30 with a capacity of 100 passengers is cruising at a Mach number of 0.78 at a pressure altitude of 30,000 ft. Outside air temperature is -38°F. The initial cruise weight was 97,000 lb. According to the pilot's flight plan, he will start his descent at a weight of 82,000 lb. The DC-9-30 has a CDp of 0.0202, an e of 0.816, a wing area of 1000 ft², a wing span of 93.6 ft, and three lavatories. The compressibility drag coefficient ACDC is 0.0010. The JT8D-15 turbofan engines have an installed specific fuel consumption at cruise of 0.82 lb/lb-h. Determine: (a) Distance covered at cruise altitude (assume that conditions at average weight can be considered as the average for the flight). (b) Required engine thrust (total for two engines) at the average cruise weight. (c) Fuel flow in gallons per hour (kerosene weighs 6.7 lb/gal). (d) Seat-miles produced per gallon. (e) Compare the DC-9 seat-miles/gallon with a five-passenger automobile having a fuel consumption of 20 mi/gal. The Energy-State Approach to Airplane Performance CD Total L CL D Co = (a) Cruise distance T= D Cop + CD + ACDC 0.3337 0.02616 = (b) T = D = CD TOT S or L/D (c) Fuel flow (lb/h): Fuel flow (gal/h) Popes P = Mach of no. sound (0.78) (686.9) 0.82 c D (8350) (0.168) 1403 statute miles Tc 12.76 log 89,500 12.76 = WI WF - - = 0.0202 +0.00496 +0.0010 (0.02616) (268.18) (1000) = 7015.6 lb (d) Seat-miles/gal 858.4 (e) Auto has 5 seats x 20 miles/gal 7014.1 lb 7014.1(0.82) 5752 6.7 × 0.78(686.9) Speed 858.4 gal/h 12.76 loge 97,000 82,000 (the difference is in the rounding of numbers) 5752 lb/h 62.42 seat-miles/gal 100 seat-miles/gal 1.6 0.02616 auto 100 DC-9 62.42 That is, the auto provides 60% more seat-miles/gal when all seats in both vehicles are filled. A DC-9-30 with a capacity of 100 passengers is cruising at a Mach number of 0.78 at a pressure altitude of 30,000 ft. Outside air temperature is -38°F. The initial cruise weight was 97,000 lb. According to the pilot's flight plan, he will start his descent at a weight of 82,000 lb. The DC-9-30 has a CDp of 0.0202, an e of 0.816, a wing area of 1000 ft², a wing span of 93.6 ft, and three lavatories. The compressibility drag coefficient ACDC is 0.0010. The JT8D-15 turbofan engines have an installed specific fuel consumption at cruise of 0.82 lb/lb-h. Determine: (a) Distance covered at cruise altitude (assume that conditions at average weight can be considered as the average for the flight). (b) Required engine thrust (total for two engines) at the average cruise weight. (c) Fuel flow in gallons per hour (kerosene weighs 6.7 lb/gal). (d) Seat-miles produced per gallon. (e) Compare the DC-9 seat-miles/gallon with a five-passenger automobile having a fuel consumption of 20 mi/gal.
Expert Answer:
Answer rating: 100% (QA)
To determine the values requested well follow the given formulas and calculations provided in the text Given data Mach number M 078 Pressure altitude 30000 ft Outside air temperature OAT 38F Initial c... View the full answer
Related Book For
Income Tax Fundamentals 2013
ISBN: 9781285586618
31st Edition
Authors: Gerald E. Whittenburg, Martha Altus Buller, Steven L Gill
Posted Date:
Students also viewed these accounting questions
-
The following additional information is available for the Dr. Ivan and Irene Incisor family from Chapters 1-5. Ivan's grandfather died and left a portfolio of municipal bonds. In 2012, they pay Ivan...
-
Write the Comparison for Legal Factors of China and South Africa
-
Meticulous Drill & Reamer (MD&R) specializes in drilling and boring precise holes in hard metals (e.g., steel alloys, tungsten carbide, and titanium). The company recently contracted to drill holes...
-
Calculate E cell for each balanced redox reaction and determine if the reaction is spontaneous as written. a. O(g) + 2 HO(1) + 4 Ag(s) b. Br(1) 21 (aq) c. PbO (s) + 4H+ (aq) + Sn(s) 4 OH(aq) + 4 Ag+...
-
Referring to Example 3 concerning nanopillars, calculate the correlation coefficient between height and width. Data From Example 3 EXAMPLE 3 One scatter plot but two different fitted lines Engineers...
-
Use the following GSS data on fear, race, and home ownership for this exercise. Variables measure respondents race, whether the respondent fears walking alone at night, and his or her home ownership....
-
A 1.3 kg book is lying on a 0.75 m -high table. You pick it up and place it on a bookshelf 2.3 m above the floor. During this process, how much work does gravity do on the book? During this process,...
-
The following information is available for Park Valley Spa for July Year 1: The following is a list of checks and deposits recorded on the books of the Park Valley Spa for July Year 1: Other...
-
Problem on the evaluation of real definite integral by contour integration: o log x T log b dx b2+ x2 26
-
IBM in Raleigh, NC as a Business Analyst Process improvements, automating reports Technical Skills: advanced Excel, Tableau Soft Skills: Time management, problem solving Salary: $50,000 - $60,000...
-
A process manufacturer that uses the weighted-average method reports the following. Compute the total equivalent units of production for conversion. Conversion Units Percent Complete Beginning work...
-
What was a result of passing Bill 88, the Electronic Commerce Act, in Ontario? 1. It allowed the outsourcing of payroll 2. It limited the ability of employers to take deductions of employees 3. It...
-
Do you support CMS's decision to adopt the "stand-in-the-shoes" amendments to the Stark Law
-
A corporation commenced operations on January 1, 2019. It has the following account balances at December 31, 2019: Accounts Payable $35,000 Accounts 45,000 Receivable Bank Loan 65,000 Building 67,000...
-
Matt Simpson owns and operates Quality Craft Rentals, which offers canoe rentals and shuttle service on the Nantahala River. Customers can rent canoes at one station, enter the river there, and exit...
-
Match the following. Answers may be used more than once: Measurement Method A. Amortized cost B. Equity method C. Acquisition method and consolidation D. Fair value method Reporting Method 1. Less...
-
Jenny earns $34,500 in 2012. Calculate the FICA tax that must be paid by: Jenny: ..............................Soc,Sec. ..................$______________...
-
Diego, age 28, married Dolores, age 27, in 2012. Their salaries for the year amounted to $46,479 and they had interest income of $3,500. Diego and Dolores' deductions for adjusted gross income...
-
Bill and Guilda each own 50 percent of the stock of Radiata Corporation, an S corporation. Guilda's basis in her stock is $25,000. On July 31, 2012, Bill sells his stock, with a basis of $40,000, to...
-
With reference to Exercise 4.5, find an expression for the distribution function \(F(x)\) of the random variable. Data From Exercise 4.5 k 4.5 Given that f(x): = is a probability distribution for 2x...
-
Given that \(f(x)=\frac{k}{2^{x}}\) is a probability distribution for a random variable that can take on the values \(x=\) \(0,1,2,3\), and 4 , find \(k\).
-
Check whether the following can define probability distributions and explain your answers. (a) \(f(x)=\frac{1}{4}\) for \(x=10,11,12,13\) (b) \(f(x)=\frac{2 x}{5}\) for \(x=0,1,2,3,4,5\) (c)...
Study smarter with the SolutionInn App