Question

what is the aspect ratio of an aircrafts wing, if the span (length) is 20 feet and the average cord is 5 feet (width). (aspect ratio = s/c or s:c)
question 6
2 pts
at 65% power, an engine is producing 1800 hp. what would be the full rated power of this engine? (nearest whole number)

Explanation:

Step1: Identify values for Aspect - ratio formula

Let $S = 20$ (span) and $C = 5$ (average cord).

Step2: Calculate aspect - ratio

Aspect ratio $=\frac{S}{C}=\frac{20}{5}=4$.

Step3: Solve for full - rated power of engine

Let the full - rated power be $x$. We know that $65\%$ of $x$ is $1800$ hp. So, $0.65x = 1800$.

Step4: Isolate $x$

$x=\frac{1800}{0.65}\approx2769$ hp.

Answer:

Aspect ratio: 4
Full - rated power of engine: 2769 hp