Aero242 S99                              Quiz 3                             Name _________________
A light propeller-driven aircraft has the following ( Anderson CP1 ) characteristics:
Wing span            35.8 ft
Wing area             174 sq ft
Gross T/O Weight             2950 lb
Fuel Capacity             65 gal aviation fuel
              (1 gal fuel weighs 6.67 lb)
Power Plant             internal combustion engine
            230 bhp (@ MSL)
SFC             0.45 lb/bhp/hr
CDo             0.025
Oswald efficiency, e             0.8
Prop efficiency             0.8
I. Shortly after take-off from sea-level, after climbing out to a height of 2000 feet, the above a/c loses all engine power and turns back to the airfield. What is the maximum distance it can be from the field in order to land there safely? (assume sea-level density throughout the glide). _________ miles
II. For a flight at 10000 ft above MSL (assume it begins with a weight equal to its gross take-off weight), 
what should be its initial
a. speed for level flight at minimum power _________ ft/sec
b. speed for level flight at maximum L/D _________ ft/sec
III. What is its maximum (Breguet) range at 10,000 ft altitude? _________ miles
IV. What its flight speed at destination? _________ ft/sec
altitude     density, slugs/ft^3
sea level 0.002377 1 hp = 550 ft-lb/sec
10000 ft 0.001756