Price:
$
Model:
X4-1900H hydrogen industrial platform
Wheelbase:
Evidence file lists a 1900 mm X8 wheelbase; confirm the aircraft revision.
Flight Control:
Controller and propulsion revisions are unnamed; add both to the compliance schedule.
Empty Weight:
The archived 18 m/s entry needs a lawful, conditioned project limit.
Power Battery:
Archive lists two auxiliary 6S 5300mAh batteries; reconcile the physical labels.
Wingspan(without propellers):
Source drawing states 1500 × 1500 × 650 mm unfolded; remeasure the delivered frame.
Folded Size(without propellers):
Packing source states 900 × 800 × 650 mm folded; confirm the shipping configuration.
Empty Weight:
The 14.5 kg empty value is archival; define installed equipment for current mass.
Satellite Navigation System:
GPS, Galileo, BeiDou and an RTK option appear in source; identify the receiver.
Endurance Time:
An unloaded two-hour claim needs current payload-specific test evidence.
Maximum Horizontal Speed:
The archived 18 m/s entry needs a lawful, conditioned project limit.
Image Transmission:
Treat 20 km as archival until radio equipment, approval and test conditions are documented.
Electronic Speed Controller:
Verify the model certificate behind the archived 48 V, 3 kW fuel-cell output.
The X4-1900H archive describes a 1900 mm X8 platform, 48V 3kW fuel-cell reference, 12-litre cylinder at 350 bar, two 6S 5300mAh batteries, 14.5 kg empty mass and 29 kg maximum take-off weight. These are supplier-listed design entries, not a ready operating approval. A buyer needs the fuel-system manual, cylinder documentation, transport rules, trained service path and payload-specific test record.
Airframe, fuel-cell and cylinder model numbers.
Cylinder certification and next inspection date.
Fuel, battery and electrical isolation procedures.
Payload interface drawing and configured centre of gravity.
Payload-specific endurance record and maintenance schedule.
| Document | Archived reference | What to verify |
|---|---|---|
| Airframe sheet | 1900 mm X8; 14.5 kg empty; 29 kg MTOW | Revision, configured mass and payload interface |
| Fuel-cell file | 48V, 3kW reference | Model, output limits, startup/shutdown and service intervals |
| Cylinder file | 12 L, 350 bar; 4.3 kg full reference | Certification, valve, inspection date, filling and transport rules |
| Acceptance test | Two-hour unloaded statement | Payload, weather, route, reserve and recorded energy data |
Clarify what the two 6S packs power, how transition or backup behaviour works and which charger is supplied. The wiring diagram and emergency isolation procedure should match the delivered revision.
Cylinder filling, storage, vehicle transport and local permissions can determine whether the platform is practical. Confirm who is qualified to inspect the fuel system and where replacement parts can be serviced.
Bring the payload, logistics and service requirements into the first technical review.
Use these archived entries only to assemble a current hydrogen-platform compliance file.
Audit the X4-10 S7mini page by resolving controller and 4S/6S battery conflicts and verifying GNSS hardware, firmware and supported functions....
Audit the document-led X4-1900H X9 page against conflicting X8, 14.5/16kg and 29/52kg records before publication....
Assess the X4-1900H through its conflicting empty-weight records, fuel-cell manual, cylinder certification, auxiliary power, logistics and service plan....
Plan X4-1900H environmental monitoring around sensor calibration, mounting, time and position tags, data custody and payload-specific useful time....
Plan an X4-900 RTK and LiDAR mapping package around correction logs, sensor calibration, dataset outputs, checkpoints and payload-specific endurance....
Verify X4-10 portability through a case-to-ready workflow while resolving S7mini, 4S/6S battery, 20/30m/s and packed-size conflicts....
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