Price:
$
Model:
X4-1900H high-load envelope
Wheelbase:
Archived: 1900mm X8 frame
Flight Control:
Propulsion and fuel-cell controller revision — confirm
Empty Weight:
Archived: 18m/s — define test profile
Power Battery:
Archived: two 6S 5300mAh auxiliary packs
Wingspan(without propellers):
Archived unfolded: 1500 × 1500 × 650 mm
Folded Size(without propellers):
Archived folded: 900 × 800 × 650 mm
Empty Weight:
Conflict: 14.5kg vs 16kg empty
Satellite Navigation System:
Multi-GNSS and RTK — identify equipment
Endurance Time:
Two hours without payload
Maximum Horizontal Speed:
Archived: 18m/s — define test profile
Image Transmission:
Archived link claim needs equipment and conditions
Electronic Speed Controller:
Archived fuel-cell output: 48V, 3kW
A hydrogen aircraft needs a procurement and service dossier. Fuel cell, cylinder, auxiliary batteries, transport rules, configured mass and payload-specific tests must share one revision-controlled file. Source material for the high-load X4-1900H identifies a 1900mm folding frame with X8 propulsion. Its energy list places two 6S 5300mAh auxiliary batteries beside a 12L, 350-bar cylinder and a fuel cell rated at 48V and 3kW. The body says 14.5kg empty and 29kg maximum take-off at a stated throttle point, while an older field says 16kg empty. The two-hour duration is explicitly without payload, so current weighing, manufacturer limits and an installed-equipment test are mandatory.
| Input | Archived entry | Current requirement |
|---|---|---|
| Empty mass | 14.5kg body; 16kg old field | Calibrated value with included equipment defined |
| Maximum take-off | 29kg at stated throttle point | Revision-specific manufacturer basis |
| Energy system | 48V 3kW; 12L 350 bar; dual batteries | Models, certificates, filled state and service file |
| Duration | Two hours without payload | Installed lawful equipment, weather and reserve test |
Resolve the 14.5kg/16kg empty-weight conflict.
Obtain airframe and propulsion revision identifiers.
Verify cylinder certificate and fuel-cell service documentation.
Weigh the complete installed civil system.
Retain a configured acceptance result with reserve.
Record cylinder identity and fill condition, fuel-cell revision, batteries, wiring and any mounts. Comparing trials without the same energy-system state can create a false equipment allowance.
For lawful inspection or survey equipment, document mass, mounting drawing, fasteners, power, data connection and centre of gravity. The acceptance result should identify the exact installation and conservative reserve.
Provide lawful equipment mass and interfaces for a revision-specific technical review.
Keep airframe, energy system and logistics under one revision-controlled file.
Configure the X4-7 for freestyle practice or close inspection with separate firmware, camera, mass, acceptance and change-control records....
Audit the document-led X4-1900H X9 page against conflicting X8, 14.5/16kg and 29/52kg records before publication....
Resolve the X4-900H SLAMTEC/Suilan S2 naming conflict and verify LiDAR identity, timing, alignment, processing and sample output....
Plan X4-900H mapping and inspection sensor changeovers with package-specific mounting, calibration, mass, output checks and endurance evidence....
Prepare an X4-7 Betaflight handover with controller identity, firmware, tune backup, receiver mapping, failsafe, propulsion parts and revision control....
Evaluate the X4-1900H equipment envelope by resolving its 14.5/16kg empty-weight conflict and documenting mount, balance and test evidence....
Tel: +86-13959965075
Email: info@fpvdroneskit.com
MP/WhatsApp: +86-13959965075
Manufacturer Address:Quanzhou Valley Nanan Science and Technology Innovation Center, No. 89 Shijing Avenue, Shijing Town, Nanan City, Fujian Province
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