Camera mass affects both handling and useful time
A light action camera can still alter centre of gravity, vibration and landing load. Identify the mount and ready-to-fly mass, then verify image quality and reserve under the chosen role.
Price:
$
Model:
X4-7 role-based configuration
Wheelbase:
Archived: seven-inch X4-7 frame
Flight Control:
INAV or Betaflight — lock one role baseline
Empty Weight:
Archived speed requires controlled conditions
Power Battery:
Archived: 4S 5100mAh — verify selected pack
Wingspan(without propellers):
Archived: 25 × 31 cm
Folded Size(without propellers):
Archived transport reference: 37 × 11 cm
Empty Weight:
Archived: 1.35kg — confirm role-specific mass
Satellite Navigation System:
Multi-GNSS optional — identify sensors
Endurance Time:
Archived duration requires role-specific test
Maximum Horizontal Speed:
Archived speed requires controlled conditions
Image Transmission:
Digital video option — identify ecosystem
Electronic Speed Controller:
Archived: 45A four-in-one ESC
Preserved fields for this X4-7 identify the seven-inch airframe, a 45A four-in-one ESC assembly, a 5100mAh 4S pack and an archived mass of 1.35kg. The title combines freestyle and inspection, yet those uses call for different rates, navigation sensors, camera mounting and acceptance checks. A disciplined buyer should define a baseline build and keep changes under revision control.
| Use profile | Build emphasis | Handover evidence |
|---|---|---|
| Supervised freestyle practice | Betaflight target, rates, durable camera mount | Configuration backup and controlled test log |
| Close visual inspection | Navigation sensors if selected, stable imaging mount | Sensor list and sample imagery |
| Shared propulsion | 45A ESC, 4S battery, seven-inch props | Motor, propeller, connector and mass |
| Change control | Any camera, battery or firmware swap | Revision note and repeat check |
A light action camera can still alter centre of gravity, vibration and landing load. Identify the mount and ready-to-fly mass, then verify image quality and reserve under the chosen role.
The quotation should name the installed controller board and one firmware target. Save the configuration before field use and repeat the appropriate acceptance checks after material changes.


No. Select and document the controller target that fits the approved baseline.
Recheck mass, balance, vibration, useful time and reserve after the installation.
Keep the firmware target, configuration backup, date and hardware revision together.
Describe the primary role and installed camera so the configuration can be reviewed as one traceable build.
Record one supervised freestyle or close-inspection build instead of blending both roles.

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