Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Suppose that the US military is considering a new lifetime regulation on their helicopter rotor blades. Instead of using them for 1000 hours (which leads to a likelihood of 5 failures per 10,000 blade sets), they are considering reducing the likelihood of a crash by replacing the blades after 500 hours, thus reducing the likelihood of a crash to 1 failure per 10,000 blade sets. Assuming a fleet of 10,000 helicopters, and assuming the helicopters are flow for 1000 hours/year, and a cost per set of blades of $5000.,
a) estimate the extra cost per year due to the increased use of blades
b) estimate the cost savings due to fewer crashes (assume a cost of $1million per helicopter, assume an average of two people in the helicopter, and remember that helicopter crashes are usually fatal).
c) Based on your calculations, what would you recommend?
A paperclip is made of wire 1.25mm in diameter. If the original material from which the wire is made was 15mm in diameter, calculate the longitudinal and diametrical engineering and true strains that the wire has undergone during processing.
standards for firewalls may be based on their thermal response to a prescribed radiant heat flux. consider a
refrigerant 134a at -10degc 1.4 bar and a mass flow rate of 280 kghr enters an insulated compressor operating at steady
air at t11300 0r p116 lbfin2 enters a counterflow heat exchanger operating at steady state and exits at p214.7 lbfin2.
two spaceships a and b are exploring a new planet. relative to this planet spaceship a has a speed of 0.60c while
the compression stages in the axial compressor of the industrial gas turbine are close coupled making intercooling very
Carbon fibre reinforced polymers (CFRP have been used extensively in aerospace applications due to their excellent strength to weight and stiffness to weight properties.
given that the relaxation time a is 177.46 days what is the activation energy of a rubber band if the pre-exponential
a pipe is made of a material the thermal conductivity of which is simultaneously dependent on radius and temperature
A 7/16 nut driver with a 1 1/2 inch diameter handle is used to install a 1/4 20 UNC bolt into a robotic arm. Determine the circumference where the effort is applied
strength of materials energy methodsa steel ring of mean diameter 250 mm has a square section 2.5 mm by 2.5 mm. it is
generate a script to draw the perpendicular bisector of any two points using ginput command. the length of the
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd