
RadarPlot Pro Trainer
Education
Only for iPhone
Free · In-App Purchases · Designed for iPhone
iPhone
Train the 6-minute radar plotting method. Track radar targets, calculate CPA quickly, and improve collision avoidance skills with professional accuracy.
Radar Plotting Trainer is the essential iOS app for maritime officers, cadets, and navigators learning radar transfer plotting—the manual ARPA-style technique used globally on modern ships. Practice the standard 6-minute plotting method on an accurate 12 nautical mile scale radar display with real-time calculations, instant feedback, and collision avoidance maneuvers.
CORE FEATURES
Plotting & Observations
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Record successive radar observations (time, range, bearing)
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Track multiple targets simultaneously with color-coded plots
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North-Up stabilized display matching academy standards
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Configurable plot interval (default 6 minutes) and range scale
Automatic Calculations
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Relative Motion Line (RML) drawn automatically through target positions
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Closest Point of Approach (CPA) with distance, bearing, and time to CPA
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Relative Motion Speed (RMS) calculated using the 10th rule
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Target true course and speed derived from collision avoidance geometry
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E-point (vector origin) constructed from own ship motion
Maneuver Planning
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Set desired minimum passing distance (required CPA circle)
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Select maneuver execution point (MX) on the RML
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Visualize new course-only and speed-only solutions
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Advanced relative motion line (ARML) for precision planning
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Instant calculations show new course/speed needed to achieve target CPA
Training Tools
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Built-in training scenarios with step-by-step handouts
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Answer key reveal mode to check your work
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Hide answers mode for independent practice
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Hints toggle to display/hide guidance
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Save and load sessions locally
Interactive Visualization
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Pinch-to-zoom up to 5x magnification for detailed inspection
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Pan across the display when zoomed
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Double-tap to reset zoom instantly
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Visual zoom with scale unchanged (calculations unaffected)
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Color-coded vectors showing own ship motion, target motion, and maneuver geometry
PERFECT FOR
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Maritime academy students preparing for licensing exams
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Watch officers refreshing collision avoidance skills
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Training officers instructing the next generation of navigators
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Anyone mastering the 6-minute radar plotting method
TECHNICAL ACCURACY
Built to match international maritime training standards with precise geometric calculations, proper handling of true motion vectors, and accurate CPA computation. Supports all maneuver scenarios including edge cases (stopped own ship, parallel targets, and more).
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Ratings & Reviews
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The developer, Paulina Praciak, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Paulina Praciak
- Size
- 48.6 MB
- Category
- Education
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Lifetime Access S$ 19.98
- Copyright
- © 2026 Paulina Praciak