01OperationalGlasgow, Scotland

SIDRA

Autonomous aircraft for GPS-denied environments. Sensing, navigation and mission autonomy, built in Scotland.

Engineered in Scotland · UK
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02//Thesis

The hardest problems in climate and public safety are no longer bound by what human crews can reach.

SIDRA builds autonomous aircraft for public agencies, researchers and industry. They fly where GPS fails and are held to aviation-grade standards. The platform that watches a forest also inspects a turbine: one autonomy stack, many missions.

The aircraft flies on its own estimate through denied navigation, geolocates what matters, and returns. The work begins where certainty ends.

The boundary is the beginning.
06//Fleet

The fleet

One autonomy core, CUSTOS, flies every airframe, and every mission gets an airframe tuned to its envelope. A buildable quadcopter today, a hybrid VTOL in development, a long-endurance concept next.

IN DEVELOPMENT
UMBRAHYBRID VTOL
Drag to orbit · live flight cycle
NIGHTJAROPERATIONAL
7-INCH SURVEY QUADCOPTER
WILDFIRE EARLY WARNING

Buildable today: ~£610 bill of materials, 40-minute hover, flying the CUSTOS autonomy stack on commercial hardware.

WHEELBASE295 mm
HOVER40 min
RANGE20 km
AUW1.26 kg
UMBRAIN DEVELOPMENT
HYBRID VTOL
SEARCH & RESCUE

Bullet fuselage, blended wing, four lift rotors and a pusher: vertical launch anywhere, fixed-wing range once airborne. Carries the ASTRUM SPAD low-light array for after-dark sector sweeps.

SPAN2.8 m
LENGTH1.6 m
LIFT4 × rotor + pusher
ENDURANCE2.5 h target
BROCHCONCEPT
LONG-ENDURANCE FIXED-WING
ENVIRONMENTAL SURVEY · FLOOD

The watchtower of the fleet: an extended-range sensor platform for wide-area environmental survey, carbon verification and flood-corridor mapping.

SPAN4.2 m target
ENDURANCE8 h target
RANGE400 km target
PAYLOAD4 kg
CORVUSPLANNED
QUIET STANDOFF MULTIROTOR
WILDLIFE PROTECTION

Low-noise rotors and high-AGL optics for standoff orbits animals never notice.

ACOUSTICLow-noise props
OPTICSEO zoom + IR
ORBITHigh-AGL standoff
VENTUSPLANNED
CLOSE-QUARTERS INSPECTION MULTIROTOR
ENERGY ASSET INSPECTION

Precision station-keeping against turbine blades and solar rows, macro imaging in ground-effect turbulence.

HOLDBlade-relative
OPTICSEO macro + thermal
ENVELOPEConfined / turbulent
RAVNPLANNED
BVLOS MARITIME PLATFORM
OFFSHORE ASSETS

Salt-spray hardened BVLOS transit and structured survey where crewed flights stay grounded.

SEALINGIP-rated / marine
TRANSITBVLOS offshore
NAVGNSS-degraded capable
FALKEPLANNED
COASTAL SURVEY PLATFORM
COASTAL RESTORATION

Low-tide repeat survey over mangrove restoration plots, multispectral scoring that steers the next seeding season.

OPTICSMultispectral + EO
CADENCETidal repeat lines
OUTPUTSurvival plot maps
View the full fleet
05//Hardware

NIGHTJAR, from the CAD

The exact airframe from the engineering model, wheelbase to fastener. Drag to orbit.

DRAG TO ORBIT · SCROLL TO ZOOM
WHEELBASE295 MM
PROPULSION4 × 2806.5 · 7″ TRI-BLADE
ENERGY6S2P Li-ION · 99.9 WH
FLIGHT COREH743 · ARDUPILOT
ALL-UP MASS1 055 G
THRUST : WEIGHT6.5 : 1
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07//Civil operations

What the fleet is for

Every mission gets the aircraft it needs.

One autonomy core, CUSTOS, flies the whole fleet. Each mission is served by an airframe tuned to its envelope. The orbit that refines a wildfire fix also inspects a turbine blade. The platform differs. The discipline does not.

CIV-01NIGHTJAR
WILDFIRE EARLY WARNING
Scotland · Iberia · Gulf

Dawn and dusk patrol lines over high-risk forestry, reading the ground in thermal. A smouldering ignition is geolocated and reported minutes after it starts, while it is still one crew rather than a thousand hectares. 2025 gave the UK its largest recorded wildfire. 2026 gave Scotland a national action plan.

PLATFORMNIGHTJAR · survey quadcopter
OUTCOMETarget: under 90 s from ignition to alert on patrol
CIV-02UMBRA
SEARCH & RESCUE SUPPORT
Scotland · Alps · Norway

A thermal sweep of a corrie takes minutes rather than a rope team’s afternoon, and the sorties that matter most start after dark. Vertical launch from the rescue base, fixed-wing transit to the sector, and a navigation stack that holds its own estimate in the glens where GNSS gets marginal.

PLATFORMUMBRA · hybrid VTOL
OUTCOMEFaster area clearance · geolocated finds, day or night
CIV-03BROCH
ENVIRONMENTAL SURVEY & FLOOD MAPPING
Scottish Highlands · Nordics · Rhine basin

The watchtower of the fleet. Long-endurance repeat lines over restored blanket bog measure re-wetting and vegetation recovery for carbon verification; when the water rises, the same aircraft flies BVLOS river corridors and maps flood extents while responders still have hours to act.

PLATFORMBROCH · long-endurance fixed-wing
OUTCOMECarbon-verification evidence · same-day flood extent
CIV-04CORVUS
WILDLIFE PROTECTION
Highlands · European rewilding

High, quiet standoff orbits count herds, log movement corridors, and flag vehicles that should not be there, without a rotor note the animals ever notice.

PLATFORMCORVUS · quiet standoff multirotor
OUTCOMEPopulation surveys · anti-poaching alerts
CIV-05VENTUS
ENERGY ASSET INSPECTION
North Sea · Baltic · Gulf desert solar

The same orbit logic that refines a track flies a blade-following scan: leading-edge erosion and lightning strikes geotagged to the exact blade station. Over solar arrays, thermal passes find hot cells and failed strings before they show in the yield curve. No rope team, no wasted shutdown window.

PLATFORMVENTUS · close-quarters inspection multirotor
OUTCOMEDefects geotagged to blade station · per-panel fault map
CIV-06RAVN
OFFSHORE ASSETS
North Sea · Gulf offshore

BVLOS transit to platforms and substations, structured survey in salt spray that grounds crewed flights, on a navigation stack that holds its estimate when GNSS degrades.

PLATFORMRAVN · BVLOS maritime platform
OUTCOMECoverage without vessel days or rope access
CIV-07FALKE
COASTAL RESTORATION SURVEY
Gulf · Red Sea coasts

The Gulf is planting mangroves by the hundred million. Abu Dhabi alone targets 100M by 2030, seeded by drone, and someone has to measure what survives. Repeat low-tide surveys score germination and survival, feeding the next seeding pass.

PLATFORMFALKE · coastal survey platform
OUTCOMESurvival maps that steer the next season
SimulatedSix mission profiles, one autonomy core
08//Europe fire watch
Record · 2026 season · verified July 2026

The gap between ignition and alert

2026 was Scotland’s worst fire season on record. Eleven thousand hectares went at Carrbridge and Dava, the Cairngorms National Park was evacuated as fire spread north through forestry, and Arthur’s Seat burned in the heart of Edinburgh. Across the continent that July, Spain, Portugal, France, Greece, Italy and Türkiye burned through the third heatwave in six weeks. The scars on this board are that record, each one carrying its date. The thermal markers are whatever is open today. What sits between them has not moved: detection still depends on watchtowers, passers-by and satellites that revisit hours apart, and the gap between ignition and alert is where a one-crew fire becomes a thousand-hectare one. It is the gap NIGHTJAR patrols.

What the gap costs

A free-burning fire grows with the SQUARE of the time it is left alone. Answer in forty seconds and it is a square metre of ground. Answer when the next satellite pass has been processed and it is 72,900 times the fire.

7.63 ha15 ha23 ha31 ha10 s60 s10 min60 min6 hAlready on station40 s · 1.0 m²Next pass, processed3 h · 7.63 ha

NIGHTJARIgnition to alert in the engineering simulator, patrolling the ground it is over.

SATELLITENASA FIRMS publishes near-real-time detections about three hours after the satellite overpass that saw them.

Elliptical spread at 3 m/min, length-to-breadth 3:1. A model, not a measurement: real fires meet rivers, roads, rain and crews.

06 ACTIVE · REPORTED IGNITION AREAS · 02 SCOTTISH BURN SCARS · 2026 SEASON
11 000+ HABURNED AT CARRBRIDGE & DAVA · NORTHERN SCOTLAND · JUNE–JULY (BBC)
16 JULYCAIRNGORMS NATIONAL PARK EVACUATED AS FIRE SPREAD NORTH (BBC)
170 000 HABURNED IN THE EU · YEAR TO JULY 2026 · MORE THAN 2× THE SEASONAL AVERAGE
14+LIVES LOST · EUROPE · JULY 2026

NIGHTJAR’s target: ignition to geolocated alert in under 90 seconds, on autonomous dawn and dusk patrol.

Watch it find the fire ↓
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11//Team

Founder-led, from the airframe up.

Mohannad Najjar
Mohannad Najjar
Founder & CEO · Glasgow · Scotland

Building SIDRA's NIGHTJAR airframe and CUSTOS autonomy stack, validated in 6-DOF simulation in-house.

Background in UAV performance engineering at Baykar Technologies, followed by managing the Baykar–SAMI–Saudi Ministry of Defense partnership for localized Bayraktar Akıncı and TB2 production in Saudi Arabia, Turkiye's largest defense export partnership.

Research at Edinburgh's APRIL AI Hub (STMicroelectronics × Google DeepMind × Royal Academy of Engineering), Bristol Drone Soc., UCL's Department of Electronic and Electrical Engineering, and Airbus UK.

Member, Royal Aeronautical Society & IMechE. Trilingual (Arabic, English, Turkish), Scout leader, building in the UK.

Outside SIDRA: nature enthusiast and parrot owner, drawn to wildlife and conservation, part of why environmental applications matter to what SIDRA builds. The instinct started with a free-flying sun conure on the Red Sea that would maneuver over the water and return to hand: loiter, maneuver, return, before any of it was code.

Recruiting technical leads across the capability pillars.

12//For investors

Building the layer between ignition and response.

SIDRA is an early-stage venture out of Glasgow, taking one autonomy core, CUSTOS, from validated flight test toward operational deployment across wildfire early warning, inspection and environmental missions. We are in conversation with investors and partners who back frontier hardware and climate resilience.

Request the investor brief
13//Contact

Get in touch

LOCATIONGlasgow · Scotland
REGISTEREDScotland · Est. 2026