Flight Computer CRP-1 and CRP-5 For UK EASA PPL and LAPL

How to use the CRP1 or CRP5 Flight Computer in the Navigation and Planning Ground Exams in the UK EASA PPL and LAPL.
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Instructed by Robert McPhee Test Prep / Other
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  • Lectures 20
  • Length 1.5 hours
  • Skill Level All Levels
  • Languages English
  • Includes Lifetime access
    30 day money back guarantee!
    Available on iOS and Android
    Certificate of Completion
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About This Course

Published 7/2014 English

Course Description

Training for the UK EASA Private Pilot Licence exams on how to use the CRP1 or CRP5 flight computer (sometimes described as the Whizzy Wheel).

The course includes use of the Wind side of the computer, and several function on the calculator side. The calculations taught are:

1. Indicated Airspeed to True Airspeed calculations

2. Speed time distance calculations

3. Fuel specific gravity calculations

4. Fuel burn calculations

The course includes a trench of each type of calculation, showing the recommended method, then worked examples and some multiple choice practice questions.

This course is recommended prior to attending a ground school session for either the Navigation exam or the Flight Performance and Planning exam.

What are the requirements?

  • Pooleys CRP1 or CRP5 Flight Computer or equivalent

What am I going to get from this course?

  • By the end of the course you will be able to perform conversions between many different units such as feet to meters, knots to miles per hour or kilometres per hour, gallons (both imperial and US) to litres and kilograms to pounds.
  • By the end of the course you will be able to work out a drift corrected heading from required track, true airspeed and wind velocity and work out wind velocity from a known track, heading, ground speed and true airspeed.
  • By the end of the course you will be able to quickly calculate speed time and distance calculations, more specifically how many minutes it will take to fly a known distance at a given speed.
  • By the end of the course you will be able to calculate the mass of a given quantity of fuel from its volume and specific gravity.
  • By the end of the course you will be able to calculate a fuel burn quantity in a given number of minutes having established a burn rate.

Who is the target audience?

  • Trainee pilots studying for the Navigation or Flight Performance and Planning exams for the UK EASA PPL or UK EASA LAPL.

What you get with this course?

Not for you? No problem.
30 day money back guarantee.

Forever yours.
Lifetime access.

Learn on the go.
Desktop, iOS and Android.

Get rewarded.
Certificate of completion.


Section 1: Conversion of Temperature (Calculator Side)
Introduction to the CRP Flight Computer
Conversion of Temperatures Between Fahrenheit and Celcius
Section 2: Speed, Distance and Time Problems (Calculator Side)
Calculate Time Taken, knowing Speed and Distance
6 questions

How to use the calculator side of the CRP flight computer to calculate speeds, times and distances.

Working out Fuel Consumption, Required and Endurance
3 questions

Using the calculator side solve fuel use problems.

Section 3: Calculation of True Airspeed (Calculator Side)
The difference between the terms IAS, RAS and CAS.
2 pages
Meaning of IAS, CAS and RAS
4 questions

Understanding the terminology of airspeed.

Calculation of True Airspeed from Altitude, temperature and Indicated Airspeed
6 questions

Calculate true airspeed from indicated airspeed, altitude and temperature.

Section 4: The Wind Side of the Computer
Setting the Wind Velocity on the Computer
Finding Heading and Ground Speed, Knowing the Track, TAS and Wind Velocity
4 questions

Practice using the wind side of the flight computer to solve the following questions.

Finding the Wind Velocity from Heading, TAS, Track and Ground Speed
2 questions

Using the wind side of the flight computer calculate wind velocity from heading, track made good, TAS and ground speed.

Finding Headwind and Crosswind Components on a Runway
Finding the Direction of a Crosswind Limit.
2 questions

Runway crosswind calculations using the wind side of the CRP Flight Computer.

Section 5: Conversion of Units (Calculator Side)
Conversion Between Meters, Yards and Ft
Conversion between Nautical Miles, Statue Miles and Kilometers
Conversion between Knots, MPH and KPH
Conversion Between Imperial Gallons, US Gallons and Litres
Conversion between Kilograms and Pounds
Conversion between Volumes and Weights
3 questions

using the calculator side of the flight computer convert given volumes to weights and visa versa.

Section 6: Typical Planning Use
Where the Information Comes From
Obtain Magnetic Heading and Ground Speed for a plan
Section 7: Check of understanding
6 questions

Confirm understanding of the use of the CAS/RAS to TAS conversion feature.

Speed, Time and Distance Calculations
4 questions
Fuel Burn Rate
3 questions
Converting Volumes to Weights and Converting Distances
5 questions
Crosswind Calculations
4 questions
Calculating True Heading and Groundspeed
4 questions
Finding Wind Velocity From Track, Groundspeed, TAS and Heading.
2 questions
Section 8: Final Exam
24 questions

A final check of understanding to ensure you are ready to use the CRP Flight Computer in UK CAA PPL exams.

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Instructor Biography

Robert McPhee, Professional Pilot and PPL Instructor

Robert started flying in 1990 after leaving school, following a 5 year gap while at university and working as an engineer, Robert returned to aviation and was trained by the Royal Air Force. He then went on to operate C130J Hercules transport aircraft in many places in the world. Robert became a civilian flight instructor in 2006 and has taught many students toward the award of their PPL. Robert now mostly flies Boeing 747-400 aircraft but also Piper Warrior PA28s and American Champion Citabria teaching new pilots.

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