The 680FL was certified on May 24, 1963 per CAR 3. The 680FL is identical to the 680F except for a lengthened fuselage a 44-inch section was added forward of the front spar and 30 inches aft of the forward spar, the horizontal was extended and in 1964 the gross weight increased to 8500 pounds. The 680FL model is also known as the “Grand Commander” for its additional passenger space and improved engine sound dampening insulation in the fuselage structure. The 680FL was a prime choice for corporate flight.
Note: All Specifications & Performances Data provided below are for Reference Only. See Piston Commander 680FL TCDS, POH/AFM, & ICA's for Model & S/N specific Specification & Performance Data.
Specification Performance Kit Finder| Span | 49.04′ | 13.42m |
| Length | 41.31′ | 12.59m |
| Height | 14.5′ | 4.41m |
| Tread | 12.91′ | 3.93m |
| Cabin Entry Door | 3. 58’ x 2.33’ | 1.09 x 0.71m |
| Cabin Height (Inside Interior) | 4.41′ | 1.34m |
| Cabin Length | 10.62′ | 3.23m |
| Cabin Width (Inside Interior) | 4.33′ | 1.31m |
| Cabin Volume | 177 ft³ | 53.94m³ |
| Baggage compartment height | 3.41′ | 1.03m |
| Baggage compartment width | 3.91′ | 1.19m |
| Baggage compartment length | 2.58′ | 0.78m |
| Baggage compartment volume | 32 ft³ | 9.75 m³ |
| Baggage door height | 1.91′ | 0.58m |
| Baggage door width | 1.58′ | 0.48m |
| Baggage compartment load limit | 400 lbs | 181 kg |
| Extended Baggage compartment load limit | 600 lbs | 272 kg |
HC-B3Z-30-2B/9349-6.5 (3 blade)
Lycoming IGSO-540-B1A / -B1C
| Max Ramp Weight: | 8500 lbs / 3856 kg |
| Take-off Weight: | 8500 lbs / 3856 kg |
| Landing Weight: | 8500 lbs / 3856 kg |
| Standard Empty Weight: | 5449 lbs / 2471 kg |
| Useful Load: | 3051 lbs / 1383 kg |
| Baggage Compartment Weight | 400 lbs / 181 kg |
| Max Cruise Speed (@ MCP Best Alt) | 240 mph / 208 kts |
| Normal Cruise (75% NRP @10,000 Ft) | 225 mph / 195 kts |
| Normal Cruise (65% NRP @ 10,000 Ft) | 215 mph / 187 kts |
| Single Engine Best rate of Climb Speed (Vy) | 115 mph / 100 mph |
| Single Engine Minimum Control Speed (Vmc) | 90 mph / 78 kts |
| Stall Speed (Clean, Vs1) | 87 mph / 75.5 kts |
| Stall Speed (Dirty, Vso) | 82 mph / 71 kts |
| Stall Speed, Gear and Flaps Down (CAS): | 82 mph / 72 kts |
| Minimum Control Speed (CAS): | 90 mph / 78 kts |
| Max. Range (188 MPH (TAS) @ 45% NPR | 1300 SM / 1130 NM |
| Normal Range (220 MPH @ 70% NRP) | 1000 SM / 865 NM |