Friday

February 27, 2015

February 27, 2015

Posted by **mary** on Wednesday, September 26, 2012 at 10:46pm.

An airspeed indicator on aircraft is affected by changes in atmospheric pressure at different altitudes. A pilot can estimate the true airspeed by observing the indicated airspeed and adding it about 2% for every 1,000 feet of altitude.

(a) If pilot maintains a constant reading of 200 miles per hour on the airspeed indicator as the aircraft climbs from sea level to an altitude of 10, 000 feat, write linear equation that expresses true airspeed T (miles per hour) in terms of altitude A (thousands of feet)

(b) what would be the true airspeed of the aircraft at 6,500 feet?

- algebra -
**keith**, Thursday, September 27, 2012 at 12:29am(1)

T in terms of A is alike to Y in terms of X for linear graphs, so set it up the same way.

T = (something)A + constant

The constant reading is 200 miles per hour so that is your constant.

T = (something)A + 200

The true airspeed is increasing by 2% or .02 of the indicated reading (constant) for every 1000ft (A). This means you must multiply the percent (.02) by the constant to get the increase per 1000ft (A). [multiply 'A' by this constant for every 1000ft]

T = 200*(.02)*A + 200

Reduced: T = 4*A + 200(mph)

(2)to find the true airspeed at 6500ft simply divide it by 1000 then plug it into the equation.

T = 4*(6.5) + 200

T = 226(mph)

- algebra -
**mary**, Thursday, September 27, 2012 at 9:08pmThank you so much

**Answer this Question**

**Related Questions**

pre-cal - a pilot wants to fly on a bearing of 66.4 degrees. by flying due east...

physics - You are a pilot on an aircraft carrier. You must fly to another ...

MATH - Aircraft are landing and taking off on parallel runways at a busy airport...

physics - A 75 kg pilot flies a plane in a vertical loop. At the top of the loop...

Physics - A plane flies horizontally at constant ground speed v=720km/h. The ...

trig - An airplane pilot wishes to maintain a true course in the direction 250° ...

algebra - making linear equation from word problem At low altitudes, the ...

physics - An airplane pilot wishes to fly due west. A wind of 82.0m/s is blowing...

Science - Why are there variations in atmospheric pressure how was this proven...

Chemistry - A basketball is inflated in a garage at 25 degrees C to a gauge ...