{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

MEM425pdfF08_4.RangeEndurance

MEM425pdfF08_4.RangeEndurance - MEM 425 Aircraft Design...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
MEM 425: Aircraft Design & Performance ** Range & Endurance Dr. Ajmal Yousuff Dept. MEM Drexel University
Background image of page 1

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

View Full Document Right Arrow Icon
Yousuff MEM 425 aircraft 2 Range & Endurance Range : total distance traversed on a given amount of fuel (in cruise) Endurance : total time in air on a given amount of fuel (in cruise) Depends on specific fuel consumption (sfc)
Background image of page 2
Yousuff MEM 425 aircraft 3 Specific fuel consumption For piston engines: sfc is in terms of power For jet engines: sfc is in terms of thrust The units for sfc will differ. We will handle these separately.
Background image of page 3

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

View Full Document Right Arrow Icon
Yousuff MEM 425 aircraft 4 sfc for prop sfc : weight of fuel consumed per unit time per unit power . of fuel ; . ( )( .) ( )( ) lb wt sfc ie hp hr power time
Background image of page 4
max min of fuel wt. mini: distance distance ( )( )( ) ( )( ) mini: ( )( ) distance lb sfc power time sfc power sfc thrust velocity R T For max endurance (E) : For max range (R) : max min of fuel wt. mini: ( )( ) time time lb sfc power E P Yousuff MEM 425 aircraft 5 Qualitative analysis for prop
Background image of page 5

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

View Full Document Right Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}