Artem Kovalev
Drone engineering
Designs the airframe, propeller guards and rotary brush.
CleanLine.app · autonomous micro-drones
Perfectly white clay court lines in under 3 minutes
A pair of autonomous micro-drones launches from its dock at the press of a button and sweeps 146 meters of lines while players change over.
146 m
of lines per court
4.8 min
two courts in cascade
2 cm
RTK-GPS accuracy
0.5 kg
drone weight
About us
Drone engineers who play on clay themselves
CleanLine started on court: we were tired of waiting for lines to be swept by hand between bookings. Over two seasons we built a lightweight drone with a rotary brush, taught it to hold a line within two centimeters, and packed it all into a dock that lives by the net all year.
Today the team combines aerodynamics, precise navigation and hands-on tennis club operations — we own both the hardware and the promise that your staff presses exactly one button.
Nika Reimer
RTK navigation & software
Owns line-following trajectories and positioning accuracy.
Mark Thiessen
Club operations
20 years managing clay courts and booking schedules.
Leah Ortiz
Business development
Works with academies, club chains and sponsorship programs.
Technology
Everything it takes to make a line white again
01
Micro-drone under 0.5 kg
A light airframe raises no extra dust and stays safe around people.
02
Rotary brush
Soft bristles lift clay off the line tape without shifting it.
03
RTK-GPS, 2 cm accuracy
The drone follows the line exactly, not roughly alongside it.
04
Propeller guards
Fully ducted rotors — safe for the surface, the net and the people.
05
Auto docking station
Charging, rain cover and a one-button launch.
06
30 cm flight height
The working altitude pushes dust away from the tape, not onto it.
Court math
146 meters of lines, broken down to the second
Throughput here is calculated, not promised. This is the full line survey of one court.
Line layout
- Baselines21.94 m
- Sidelines (singles & doubles)95.08 m
- Service lines29.26 m
- Total146 m
Split and speed
2
Drones per court
73 m
Per drone
0.5 m/s (30 m/min)
Sweeping speed
2.43 min
Net flight time
Cascade sweeping: 1 pair per 2 courts
We don't put hardware on every court. Changeovers last 5–10 minutes — one pair of drones sweeps two courts back to back.
2.3 min
Court A swept
Playing lines only
0.2 min
Flight to the next court
12 seconds
2.3 min
Court B swept
Same cycle
4.8 minutes
The system fits inside the 5-minute changeover window with room to spare.
Marketing
Your guests will film your club's advertising for you
Synchronised launch = content
Two drones lift off together and glide along the lines — phones come out, stories get posted.
Branded airframes
The drone shell and dock are ad surfaces for a club or tournament sponsor.
Premium club status
Automated line sweeping is a visible argument for a higher court fee.
A content plan out of the box
Slow-motion launch, red dust cloud, a perfect white line — a story that works with zero budget.
Gallery
Infographics you can reuse in your own marketing
Court math, cascade routing and hardware anatomy — four visuals prepared for club newsletters, decks and social posts.
Court line map
146 m of playing lines: baselines, singles and doubles sidelines, service lines.
Cascade routing
One pair of drones covers two adjacent courts in 4.8 minutes, including the 12-second hop.
Drone anatomy
0.5 kg airframe, rotary brush, RTK-GPS antenna and a swappable battery pack.
Dock and coverage
A dock lives courtside year-round; CapEx is roughly 5x below industrial drone docks.
Ready-to-post captions
Copy these under a clip of the launch — they work for club Instagram, Reels and TikTok.
Launch clip“Two drones. 146 meters of lines. Under three minutes — while you switch sides.”
Slow motion“Red dust up, white line back. This is what a court changeover looks like in 2026.”
Club positioning“Every booking on our courts starts on freshly swept lines. Automatically.”
Sponsor angle“Your logo flying twice an hour over the busiest court in the club.”
All visuals are available in print resolution on request — write to info@cleanline.app.
Costs
Custom build instead of industrial docks
Micro-drone + rotary brush + RTK module + auto dock costs roughly 5× less than industrial DJI Dock–class systems. A pair of drones with a base is about $2,400.
| Club size | Hardware | Time to sweep all courts | CapEx |
|---|---|---|---|
| 5 courts | 3 pairs (6 drones) | 4.8 min | $7,200 |
| 10 courts | 5 pairs (10 drones) | 4.8 min | $12,000 |
| 20 courts | 10 pairs (20 drones) | 4.8 min | $24,000 |
CapEx covers hardware with docking stations. Servicing and spare brushes come with the support package.
Commercial offer
For academies, clubs and court networks
Pilot
1 pair for 2 courts
$2,400
- 2 drones + docking station
- Trajectories mapped to your court
- Staff training (1 day)
- 3 months of support
Club
5 pairs for 10 courts
$12,000
- 10 drones + 5 docking stations
- Single launch console
- Season set of spare brushes
- 12 months of support
Academy network
20+ courts
on request
- Phased delivery per venue
- Branded airframes
- Operating protocol and SLA
- Sponsorship program
Let's size your club
Send us your court count and booking schedule — we'll come back with sweeping timings and an exact quote.