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Engine Cost Calculation

The document presents a cost analysis for aircraft development, including input parameters, constants, and detailed cost breakdowns for research, development, test and evaluation (RDT&E) as well as acquisition costs based on data from 1970 and 1986. It outlines various cost categories such as airframe engineering, manufacturing labor, materials, tooling, quality control, and engine costs, along with profit calculations. The total costs and unit costs for production aircraft are summarized, showing significant differences between the two years analyzed.

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Kbrom Amsalu
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77 views4 pages

Engine Cost Calculation

The document presents a cost analysis for aircraft development, including input parameters, constants, and detailed cost breakdowns for research, development, test and evaluation (RDT&E) as well as acquisition costs based on data from 1970 and 1986. It outlines various cost categories such as airframe engineering, manufacturing labor, materials, tooling, quality control, and engine costs, along with profit calculations. The total costs and unit costs for production aircraft are summarized, showing significant differences between the two years analyzed.

Uploaded by

Kbrom Amsalu
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as XLS, PDF, TXT or read online on Scribd
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Sheet1

Cost Analysis

Input Parameters: Constants:

W_s 45,261 lbs CPI (70-98) 3.95


V_max 1926 f/s CPI (86-98) 1.49
N_D 2 aircraft CPI (98-00) 1.056
N_P 250 aircraft
R_D 0.083 aircraft/mo.
R_P 1 aircraft/mo
Year 2000

V_max 1140.3653 knots

CR_E 94 $/hr
CR_T 100 $/hr
CR_ML 80 $/hr
CR_QC 88 $/hr

Research, Development, Test and Evaluation


Based on 1970 Based on 1986

Airframe Engineering:
H_E (hrs) 15,188,522.88 19,484,287.81
C_E ($) $1,427,721,150 $1,831,523,054

Development Support:
C_D ($) $545,051,187 $1,140,923,947

Manufacturing Labor:
H_ML (hrs) 4,955,251.20 2,936,940.55
C_ML ($) $396,420,096 $234,955,244

Manufacturing Materials:
C_MM $24,130,322 $64,041,180

Tooling:
H_T (hrs) 8,664,149.58 5,757,264.00
C_T ($) $866,414,958 $575,726,400

Quality Control:
(C or O) O Cargo or Other Aircraft
H_QC 644,182.66 381,802.27
C_QC $56,688,074 $33,598,600

Flight Test:
C_FT $58,007,269 $73,905,354

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Sheet1

Engine:
T_max (lbs) 10,200
(TJ or TF) TJ turbofan or turbojet
N_eng 4
C_EN ($) $8,165,208 $8,165,208

Subtotal (RDT&E): $3,382,598,265 $3,962,838,987

Profit:
Percent 10 10
C_P $338,259,827 $396,283,899

Total (RDT&E): $3,720,858,092 $4,359,122,886

Acquisition:
Based on 1970 Based on 1986

Airframe Engineering:
H_E (hrs) 36,749,384.70 42,803,656.30
C_E ($) $3,454,442,162 $4,023,543,693

Manufacturing Labor:
H_ML (hrs) 62,208,040.61 64,865,605.02
C_ML ($) $4,976,643,249 $5,189,248,402

Manufacturing Materials:
C_MM $1,104,881,883 $3,033,125,833

Tooling:
H_T (hrs) 20,463,311.91 20,497,621.92
C_T ($) $2,046,331,191 $2,049,762,192

Quality Control:
(C or O) O Cargo or Other Aircraft
H_QC 8,087,045.28 8,432,528.65
C_QC $711,659,985 $742,062,521

Engine:
T_max (lbs) 10,200
(TJ or TF) TJ turbofan or turbojet
N_eng 4
C_EN ($) $1,020,650,976 $1,020,650,976

Subtotal (A): $13,314,609,445 $16,058,393,617

Profit:
Percent 10 10
C_P $1,331,460,945 $1,605,839,362

Page 2
Sheet1

Total (A): $14,646,070,390 $17,664,232,978

Total Profit: $1,669,720,771 $2,002,123,260

Aircraft Unit Cost:

RDT&E amortized
unit no.: 200 200
Cost / Prod. Aircraft $18,604,290 $21,795,614

Unit cost:
1 200 $77,188,572 $92,452,546
201 250 $58,584,282 $70,656,932

Summary Totals: Based on 1970 Based on 1986

C_E ($) $4,882,163,312 $5,855,066,747


C_D ($) $545,051,187 $1,140,923,947
C_ML ($) $5,373,063,345 $5,424,203,645
C_MM ($) $1,129,012,206 $3,097,167,013
C_T ($) $2,912,746,149 $2,625,488,592
C_QC ($) $768,348,058 $775,661,121
C_EN ($) $1,028,816,184 $1,028,816,184
C_P ($) $1,669,720,771 $2,002,123,260

1970 CERs Cost Estimate in 1999 Dollars

C_P ($)
9%
C_EN ($)
6%
C_QC ($)
4% C_E ($)
27%

C_T ($)
16%
C_D ($)
3%
C_ML ($)
29%
C_MM ($)
6%

Page 3
Sheet1

1986 CERs Cost Estimate in 1999 Dollars

C_P ($)
9%
C_EN ($)
5%
C_QC ($)
4% C_E ($)
27%

C_T ($)
12%

C_MM ($) C_D ($)


14% 5%
C_ML ($)
25%

Page 4

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