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The Official Online Training Resource for the National Society of Surveyors (NSPS) Certified Survey Technician (CST) program.

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Now Accepting Q1 Exam Applications

Between January 8th and 29th, we encourage all “Fast Track” members interested in sitting for the CST exam (levels I, II or III) to apply. If you’ve completed training modules during the fall session and/or feel you’re ready to take the exam, the process is simple:

*Decide on a time and location OR make arrangements with an exam proctor
*Submit paperwork and payment to NSPS

While anyone can schedule an exam directly with NSPS at any time, Learn CST supports all Fast Track members with arranging their examination.

If you need more time, you can continue training or join our class. We’ll issue another invite in April.

If you’re ready to take the exam, visit our exam application page to get started. Good luck!

Written by Glen · Categorized: Uncategorized

Now Accepting Q4 Exam Applications

Between October 9th and November 6th, we encourage all “Fast Track” members interested in sitting for the CST exam (levels I, II or III) to apply. If you’ve completed training modules during the summer session and/or feel you’re ready to take the exam, the process is simple:

*Decide on a time and location OR make arrangements with an exam proctor
*Submit paperwork and payment to NSPS

While anyone can schedule an exam directly with NSPS at any time, Learn CST supports all Fast Track members with arranging their examination.

If you need more time, you can continue training or join our class. We’ll issue another invite in January.

If you’re ready to take the exam, visit our exam application page to get started. Good luck!

Written by Glen · Categorized: Uncategorized

How to Start a Design Level Drone Mapping Business

I get asked a lot what I recommend for a startup drone mapping business. Before answering the question we must consider the intent of the operation. After all, there are two types of drone mapping: generic 3D mapping and its much more intricate cousin, design level survey mapping.

3D mapping is done at various levels of accuracy and flying heights mostly with manned aircraft ranging from 1′ to 15′ contour levels. This type of mapping is generally not used by design engineers to create accurate man-made features. It is used for dirt quantities, layout and design of roads, highways, power lines, etc.

The lowest that manned aircraft can fly is at 1000′ AGL which equates to 2.5cm level mapping which is design level mapping but very expensive to acquire.

Design level survey mapping is also 3D mapping however the accuracy is within 0.07′ (2 cm) or better. Engineers and Architects can use this mapping to design man-made features such as buildings, parking lots, streets and so on that require a higher level of accuracy.

Drones can easily capture imagery for design level survey mapping if done right. One button solutions using automated flight software can achieve 3D mapping at various levels of accuracies depending upon the drone camera/sensor and software being used for processing.

Design level survey mapping is the next level which takes more than a one button solution.

Design level drone mapping - our work is our pleasure!
Design level survey mapping – our work is our pleasure!

More Than a One Button Solution

Having surveying knowledge is the key to getting professional design level survey mapping. You need to understand surveying datums such as State Plane Coordinate System, UTM Coordinate System, Ground vs Grid, Grid Adjustment Factors, Geographic Coordinate System, design constraints, grade breaks, planimetrics, contour generation and breaklines to mention a few.

Being a licensed Professional Land Surveyor is a huge benefit. Teaming up with a licensed professional will fill that gap as well.

A UAV (drone) is just a tool and in a surveyors hand is priceless when it comes to design level survey mapping.

Tradition surveying knowledge takes drone mapping to the next level
Taking drone mapping to the next level

Surveying Knowledge is Priceless

You need a drone with a camera/sensor that will meet sufficient accuracy requirements.

  • I use a DJI Mavic 2 Pro and Inspire 2 with a x5s camera/15mm lens.
  • I use the right number of GCPs set in strategic locations using a survey grade GPS to get a solid aerial triangulation solution.
  • I use Metashape Pro to process the imagery and measure the ASPRS RMSE values. Breaklines are created along grade breaks, man-made features and extracted as a DXF file. A rectified orthomosaic is also created.
  • The DXF is imported into Civil 3D to create a 3D surface. Planimetrics are added to create a design level survey map for engineers and architects to use for their design.
Design work overlaid on high quality drone mapping
Design work overlaid on high quality drone mapping

How to start a drone mapping business

I use both an iMac and Windows computer to process all of the data. So how to start a drone mapping business? In conclusion, here is my survey mapping equipment list:

  • Survey knowledge (priceless)
  • Survey grade GPS equipment ($20k+)
  • Mavic 2 Pro ($2k) or Inspire 2 with x5s camera & 15mm lens ($8k+)
  • Mini iPad with Litchi ($400+)
  • Metashape Pro for breaklines and orthomosaic ($3500)
  • Civil 3D to build a surface. ($2400 per year)
  • Computer ($3000+)

Total = $37,300+ to get started

This does not include training, office, vehicle, insurance and all of the other factors it takes to run a business.

As you can see it is not cheap to get into design level survey mapping. It has taken me years to build everything I have to provide this type of service. Working with a company such as Cooper Aerial provides the necessary tools and clients to bring it all together.

You don’t have to have 46+ years experience in surveying but you do need to work with someone that does have surveying experience. Most states in the US require that design level survey mapping be done by or under the direction of a licensed professional land surveyor.

Anyone can fly a drone. Not everyone can deliver design level survey mapping.

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LearnCST contributor Jim Crume created the Survey Mathematics Made Simple and Survey Mapping Made Simple book series to showcase the technical aspects needed to become a professional design level mapper. 

Written by Jim Crume · Categorized: Features

Now Accepting Q3 Exam Applications

Between July 3rd and 31st, we encourage all “Fast Track” members interested in sitting for the CST exam (levels I, II or III) to apply. If you’ve completed training modules during the winter session and/or feel you’re ready to take the exam, the process is simple:

*Decide on a time and location OR make arrangements with an exam proctor
*Submit paperwork and payment to NSPS

While anyone can schedule an exam directly with NSPS at any time, Learn CST supports all Fast Track members with arranging their examination.

If you need more time, you can continue training or join our class. We’ll issue another invite in July.

If you’re ready to take the exam, visit our exam application page to get started. Good luck!

Written by Glen · Categorized: Uncategorized

Now Accepting Q2 Exam Applications

Between April 3rd and 24th, we encourage all “Fast Track” members interested in sitting for the CST exam (levels I, II or III) to apply. If you’ve completed training modules during the winter session and/or feel you’re ready to take the exam, the process is simple:

*Decide on a time and location OR make arrangements with an exam proctor
*Submit paperwork and payment to NSPS

While anyone can schedule an exam directly with NSPS at any time, Learn CST supports all Fast Track members with arranging their examination.

If you need more time, you can continue training or join our class. We’ll issue another invite in July.

If you’re ready to take the exam, visit our exam application page to get started. Good luck!

Written by Glen · Categorized: News

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LearnCST News and Updates

  • Now Accepting Q1 Exam Applications January 9, 2021
  • Now Accepting Q4 Exam Applications October 9, 2020
  • How to Start a Design Level Drone Mapping Business July 22, 2020
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