Envelope chart. Takeoff 799 kg at 0.327 m.
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PEOPLE
BAGGAGE
FUEL
EMPTY MASS · F-GFXS
F-GFXS · empty 625 kg, arm 0.2918 m · weighed 2026-06-15. From Avialpes load sheet.
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Data source
Avialpes load sheet F-GFXS; Manuel de vol DR 400/180 Section 6; club load sheets F-GMXF, F-GEIH, F-GFXS · version avialpes-2026.07.2
- From Avialpes' load sheet for F-GFXS (Feuille de centrage Avialpes 07-2026.xlsx), weighing of 15 June 2026. Verify against the tail's current weighing report.
- The sheet shows the empty arm as 0.29 m beside a moment of 182.349 kg·m; the arm here is the moment over the mass (0.2918 m), as the sheet's own sums use it.
- The sheet's aircraft characteristics give the empty mass as 628 kg; its calculation uses 625 kg, which is used here.
- Forward limit 0.205 m up to 750 kg, then straight to 0.428 m at 1100 kg; aft limit 0.564 m.
- Maximum landing mass 1045 kg: at full mass, 55 kg of fuel must be used before landing.
- Club sheets use 0.71 kg/L for Avgas; the manual's 0.72 is used here.
The Robin DR 400/180 from its POH, for any tail: Robin DR 400/180 weight & balance
For reference only. The aircraft’s approved flight manual and weighing report are the final authority.
| Station | Load | Mass kg | Arm m | Moment kg·m |
|---|---|---|---|---|
| Empty aircraft | 625 | 0.292 | 182.38 | |
| Pilot | 80 | 0.410 | 32.80 | |
| Front passenger | 0 | 0.410 | 0.00 | |
| Rear passengers | 0 | 1.190 | 0.00 | |
| Baggage | 0 | 1.900 | 0.00 | |
| Front tank | 80 L | 58 | 0.100 | 5.76 |
| Centre tank | 50 L | 36 | 1.120 | 40.32 |
| Supplementary tank (if fitted) | 0 L | 0 | 1.610 | 0.00 |
| Zero fuel | 705 | 0.305 | 215.18 | |
| Takeoff | 799 | 0.327 | 261.25 |
Avialpes load sheet F-GFXS; Manuel de vol DR 400/180 Section 6; club load sheets F-GMXF, F-GEIH, F-GFXS. For reference only; the aircraft’s flight manual and weighing report are the final authority. https://zulucheck.com/wb/f-gfxs/
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