AVADRONE — Active Marking Layer for avalanche rescue
Active Marking Layer

Saving time saves lives.

A wearer-initiated aerial marker that follows the casualty through the avalanche. It launches from the user’s equipment, tracks movement through the slide and marks the final burial position – turning a search area into a visible target.

A new lightweight, wearer-initiated safety device · Now raising £250K
HOW AVADRONE WORKS: RUNOUT PERSON SKIING OR SNOWBOARDING IN THE BACKCOUNTRY DRONE TRACKING MARKING FINAL LOCATION FOR A FASTER FIND STANDBY DESCENT · SUBJECT TRACKED ⚠ AVALANCHE DETECTED DEPLOY · TRACKING SLIDE SIGNAL LOST · LOCATING SCANNING RUNOUT ● BURIAL MARKED
Scroll
01Survival Window

The window is measured in minutes.

Eurac / WSL research analysing 1,643 critically buried avalanche victims in Switzerland (1981–2020) shows survival probability collapsing as search time increases. The signal and coarse-search phases consume the most valuable minutes — precisely the minutes AVADRONE returns.

SURVIVAL PROBABILITY · % vs. TIME-TO-EXTRACTIONSRC // JAMA NETWORK OPEN 2024
100 75 50 25 0 0 10 MIN 15 MIN 20 MIN 30 MIN CRITICAL WINDOW SURVIVAL COLLAPSE 76% → 31% IN 15 MINUTES 91% SURVIVED ≤ 10 MIN 76% SURVIVED ≤ 15 MIN 31% SURVIVED 15–30 MIN

EURAC / WSL RESEARCH (CONDUCTED BY RAUCH ET AL.) — “AVALANCHE SURVIVAL RATES IN SWITZERLAND, 1981–2020” · N=1,643 · JAMA NETWORK OPEN, 2024

02The Rescue Process

Where the minutes actually go.

Existing equipment is VITAL – but it still leaves search time in the chain. Every phase below has to happen before a casualty can be reached, and the clock starts the moment the snow moves.

Elapsed time from triggerOrtovox · Eurac / WSL research (Rauch et al.), 2024
● Professional team recovery● Real-world average recovery · Eurac / WSL
00:00

Avalanche triggers

00:3000:30

Slide stops, debris settles +0:30

Survivors orient, mark the last-seen point and switch transceivers to search.

Designed to bypass these two phases
01:0001:30

Signal search +0:30 – 1:00

Sweep the deposit until a transceiver signal is acquired.

02:0003:00

Coarse search +1:00 – 1:30

Follow the flux line in to roughly three metres.

02:3003:45

Fine search +0:30 – 0:45

Cross-pattern at the snow surface to the lowest reading.

03:0004:30

Probe strike +0:30 – 0:45

Confirm position and depth. Average burial is 1–1.3m.

07:0010:00

Casualty reached +4:00 – 5:30

Shovelling — over half the rescue, and the phase no search tool shortens.

A companion rescue averages 10 minutes because someone is already on the surface. When the rest of the party is buried, injured or the skier was alone, the clock belongs to professional rescue – which averages 90 minutes. The Eurac / WSL research found the risk of dying from suffocation between 10 and 30 minutes of burial has not improved in four decades.

What AVADRONE is designed to change

AVADRONE is designed to bypass the signal and coarse search altogether. Instead of searching for a signal, whoever reaches the slope – companion or professional – arrives at an already-marked position and starts digging. On the figures above that is a fifth to a quarter of the entire rescue, and it is the part that degrades worst in poor visibility, complex terrain and multiple burials. Survival falls steeply after ten minutes, so every minute handed back to the dig is a minute on the right side of the curve.

03Avalanche Safety Equipment Evolution

No new tool has entered this process in 40 years.

Every piece of equipment a rescuer reaches for today was introduced between 1968 and 1986. The kit has been refined – the process has not changed.

1968
Transceiver
58 years in service
1974
Aluminium Probe
52 years in service
1980
Avalanche Airbag
46 years in service
1981
Collapsible Shovel
45 years in service
1986
RECCO
40 years in service
Until now. AVADRONE adds an active marking layer, accelerating the recovery of buried victims — it does not replace any of the above equipment already involved in the process.
04The Exposure
Skier descending unpatrolled off-piste terrain

More people. Congested terrain. Rising fatalities.

These numbers are not a list – they are all important issues that are changing the shape of backcountry adventure. Closing lifts and ski areas and shorter seasons, both through climate change, push a growing number of skiers onto less terrain, and the overflow goes where nobody is patrolling.

+30%
Backcountry growth worldwide
Over the past five years
+
27–62
Fewer ski days
Projected by 2050
+
273
Closing ski facilities
Disused ski lifts in Italy alone · from 131 in 2020
=
A compressed season, busier pistes, and more skiers escaping into uncontrolled terrain.
↓
+22%
Avalanche incidents
Over the same five years
149
Deaths in Europe alone
25/26 season · up from 87 and 70
$1.1B→$2.3B
Avalanche safety-gear market · 2024 → 2033 · 6.9% CAGR

Buyers already pay for avalanche safety. AVADRONE is a premium layer alongside transceivers, airbags and RECCO — not a new category to create.

SOURCES // EAWS FATALITIES 2025/26 · INTEL MARKET RESEARCH, ALPINE TOURING SKIS MARKET 2026 · SIA PARTICIPATION STUDY 2023–24 · EESI 2026 · LEGAMBIENTE NEVEDIVERSA 2026 · BUSINESS RESEARCH INSIGHTS

05The System

An active marking layer.

AVADRONE launches from the user’s equipment the instant an avalanche triggers. It tracks movement through the slide, marks the final burial position on the surface, then powers down to minimise interference with transceiver searches.

It works alongside transceivers, airbags, probes and RECCO – removing the search delay no existing tool can.

  • Shoulder-strap trigger module for fast activation, attachable to existing airbag releases
  • Multiple sensors
  • Inertial sensing and 457 kHz beacon, designed to work with transceivers, processing to estimate final burial position
  • Deployable marking system to indicate position
  • Sub-1kg all-up weight, integrated into the pack

WHY NOW // MICRO-DRONE MINIATURISATION, IMPROVED IMU SENSORS AND 457 kHz SIGNAL PROCESSING HAVE ONLY RECENTLY MADE THIS TECHNICALLY FEASIBLE AT WEARABLE SCALE. THE CHALLENGE IS INTEGRATION, NOT INVENTION.

01
Release

Deploys the instant a slide triggers

The moment the snow moves, the device releases from the pack and launches — no input required beyond the trigger.

02
Track

Follows the casualty through the slide

The system tracks the person as they are carried down the mountain within the moving snowpack.

03
Mark

Marks the exact burial position

It pinpoints and marks the precise surface location where the casualty comes to rest.

04
Indicate

Lands, indicates, then stands down

It lands above the burial site, marks the position, then powers down its electronics to avoid interfering with rescuers’ transceivers.

Concept sequence: an avalanche triggers and the skier releases the device; it tracks the casualty during the slide; it marks the final burial position; it lands above the burial site and releases a final indicator before shutting down its electronics
CONCEPT SEQUENCE // 1. AVALANCHE TRIGGERED, SKIER RELEASES DEVICE  ·  2. TRACKS CASUALTY DURING AVALANCHE  ·  3. MARKS FINAL BURIAL POSITION  ·  4. LANDS ABOVE BURIAL SITE, RELEASES FINAL INDICATOR BEFORE ELECTRONICS SHUT DOWN
06Deployment Domains

One concept, many theatres.

The active marking layer is domain-agnostic. Anywhere a person must be located and reached fast under adverse conditions – snow, rubble, terrain, or low visibility – the same release–track–mark loop applies. Avalanche rescue is the beachhead, not the ceiling.

Alpine & Backcountry

Individual touring skiers and splitboarders in unpatrolled, high-consequence terrain.

Ski Patrol & Resorts

Professional operators standardising rapid burial-marking across their patrolled boundaries.

Search & Rescue

Mountain rescue and SAR teams cutting the coarse-search phase in complex, multi-burial scenes.

Disaster Response

Rapid localisation of buried or trapped people in avalanche, landslide and collapse events.

Remote Industry & Expedition

Lone and small-team safety for expeditions, remote sites and cold-region operations.

07Interoperability

A layer over the kit you already trust.

AVADRONE does not replace proven avalanche equipment. It compliments it – removing the search delay that limits every other tool in the chain.

Transceivers+ Airbags+ Probes+ RECCO+ AVADRONE
08Product Development

Founder-led concept. IP filed. Technical scoping underway.

A defined concept with protected IP, an engaged technical partner ready to produce the prototype. The Form 9A search report is expected within three to six months of filing; the PCT application follows before the twelve-month priority deadline.

UK Patent ApplicationFILED · 2026.04.28
Form 9A SearchREQUESTED
Technical PartnerENGAGED
MVP DevelopmentNEXT STEP
Concept & Product VisualsCOMPLETE
PCT ApplicationBEFORE APR 2027
Connor Maxwell ski touring in the Alps, with snow-covered peaks behind Portrait of Connor Maxwell

Connor Maxwell

Founder & Inventor

Inventor of AVADRONE. BASI-qualified ski instructor and former British Infantry Officer decorated for bravery, with years of alpine and mountain-safety experience – now building a mission-led safety drone for avalanche rescue.

09Roadmap

Twelve months to a flying MVP.

Four milestones down, five to go, across a 12-month MVP year. The same release–track–mark discipline behind the product applies to how the company is being built — sequential, de-risked, and gated on evidence at every step.

JOURNEY TO MVP · 9 MILESTONESCURRENT STAGE // TECHNICAL SCOPING UNDERWAY
1 2 3 4 5 6 7 8 9
Completed
Company RegisteredDONE
UK Patent Filed · Search RequestedDONE
Concept & Product VisualsDONE
Technical Partner EngagedACTIVE
Ahead
Commission MVP DevelopmentNEXT
CTO / Technical Lead HiredQ1
PCT Application FiledQ2
Sub-1kg Payload ValidatedQ3
MVP Proven End-to-EndQ4
10The Raise

What this round buys:

A £250K raise funding a 12-month runway to a working, tested MVP. This round proves the rescue process – it does not build a production-ready product.

£250K
Raise
12-month runway
Intention to apply for SEIS
MVP milestone-driven
This round

Prove the rescue process end to end

Release, launch, deployment, flight, tracking, mark, land and shut down – demonstrated as one working sequence, with orientation recovery and a sub-1kg payload validated.

Next round

Certification, manufacturing and launch

Consumer certification, avalanche-condition field validation and production tooling follow in a seed round raised on proven MVP evidence – not on this one.

From patent-filed concept, to a working tested MVP, to a seed round raised on hard evidence.

11Contact
Stay in the loop

Be first as AVADRONE takes flight.

Whether you ski the backcountry, run a patrol or rescue team, or want to support the mission – register your interest for development and early-access updates. If you’re interested in investing, please email directly.

Any enquiries
info@avadrone.co.uk

Privacy Policy