Eleven minutes a blade.

Kestrel K-1 flies each blade on its own, finds cracks and leading-edge erosion down to 0.2 mm, and files the report the same day.

Book a field demo See a sample report

001 · Downtime

A parked turbine earns nothing, and a rope team needs most of a day per tower. K-1 flies all three blades in thirty-three minutes, and the rotor is turning again before the crew has packed the van.

Flight per blade1
11min
Leading edge, trailing edge, and both shells in four passes.
Smallest defect found2
0.2mm
Crack width, measured at a 6 m standoff on a 61 MP sensor.
Flight to report3
Same day
Every finding located, sized, photographed, and ranked.
  1. Median across 412 blades flown in 2026 field trials, 45–79 m blades.
  2. Verified against rope-access measurements on 38 trailing-edge cracks.
  3. Report filed before 18:00 local for flights completed by 15:00.

How a flight works. Two pilots, one van, no rope team.

01 · Park

Lock the rotor with one blade level. The pilots launch from the van; nobody climbs.

02 · Fly

Four passes, root to tip. LiDAR holds K-1 six meters off the surface in gusts up to 12 m/s.

03 · Find

Defects are boxed while it flies. Cracks, erosion, and lightning damage, down to 0.2 mm, checked by an engineer before release.

04 · File

The report is filed by evening. Ranked by what to fix first, ready for your repair contractor.

The report lands the same day. Every finding located to the meter, sized to the tenth of a millimeter, and ranked by what to fix first.

  • FormatPDF + CSV, and an API for your CMMS
  • SeverityCat 1–5, the scale your insurer already uses
  • Sign-offEach finding reviewed by a blade engineer

One airframe, one job. A 61‑megapixel camera and a LiDAR that holds six meters from the blade, on a frame two people can lift.

Field demos booking · EU + UK

Mass
7.2 kg
Diagonal
1.12 m
Endurance
38 min
Wind limit
12 m/s
Blade length
40–115 m
Detection floor
0.2 mm
Ingress
IP55
Revision
K-1 rev C · 2026

Plan the campaign. Enter your fleet and how many turbines you can park in a day.

Flight time only: three blades × 11 minutes per turbine. Rotor parking and moving between towers are not included; your site lead knows those better than we do.

Blade flight time 46 h 12 min Field days11 Reports84, each filed the day it flies

Pick a turbine. We'll fly it.

Crew
Two pilots and one van. No climbers, no crane.
On site
Half a day, including the safety briefing.
You keep
The full report on that turbine, filed the same evening.
Season
Through November, then from March 2027. Wind under 12 m/s.

A pilot lead replies within one working day to pick a date.