Chapter 1, Problem 1.12P

The German Zeppeins of World War I were dirigibles with the following typical characteristics: $\text{volume}=15,000{\text{m}}^{\text{3}}$ and maximum diameter = 14.0 m. Consider a Zeppelin flying at a velocity of 30 m/s at a standard altitude of 1000 m (look up the corresponding density in Appendix D). The Zeppelin is at a small angle of attack such that its lift coefficient is 0.05 (based on the maximum cross-sectional area). The Zeppelin is flying in straight-and-level flight with no acceleration. Calculate the total weight of the Zeppelin.