Problem $3\mathrm{.}3$

$3\mathrm{.}3.$ A $747$ with a gross $($total$)$ weight of $650,000lb$ is cruising at $35,000ft$ at a speed of $785f\frac{t}{s}$ The $747$ has a wing area of $5500f{t}^2.$ The density at $35,000ft$ is $0\mathrm{.}0007382$ slug$/f{t}^3.$ What is the value of the cruise lift coefficient, $C_L,$ and the wing loading? $($When using equations $3\mathrm{.}9,V$ must be in feet per second in the English system.$)$

Schematic Diagram

Prepared by: Ms$.$ Souzan Sarraj

$1$

EG$105$ Aircraft Systems Principles and Applications

aviation

unversty

Procedure

Connect the circuit according to the given schematic diagram in figure $1.$

Configure GPC $303$D in Series mode.

Connect $V_1$ and $V_2$using potentiometers.

Set the output of the potentiometers according to the values given in the table.

Calculate and measure the output of the summing amplifier based on the given input voltages and write down the observations in the given table.

Write down the steps involved in calculating the theoretical values of $V_o.$

Take pictures of the practical values of $V_o.$

Calculations & Measurements

$\backslash$table$[[V_1(V),V_2(V),V_0(V)$ Practical,$V_0(V)$ Theoretical$],[1,2,,],[2\mathrm{.}5,3\mathrm{.}5,,]]$

URGENT

Solve the table for calculations & measurements using the values given in the circuit$($schematic diagram$)$