The 680W is identical to the previous Models 680T and 680V in weight, C.G. range, aerodynamic certification and engine performance. The basic difference between the 680W and 680V is the change to the TPE 33l-43BL engine. The 680W certification was obtained on February 5, 1968.
Note: All Specifications & Performances Data provided below are for Reference Only. See Piston Commander 680W TCDS, POH/AFM, & ICA's for Model & S/N specific Specification & Performance Data.
Specification Performance Kit Finder| Span | 44′ | 13.41m |
| Length (680T:680V) | 41.57′ | 12.67m |
| Length (680W) | 42.11' | 12.83m |
| Height | 14.60′ | 4.45m |
| Tread | 12.11′ | 3.69m |
| Cabin Entry Door | 3. 91’ x 2.18’ | 1.19 x 0.66m |
| Cabin Height (Inside Interior) | 4.′62 | 1.40m |
| Cabin Length | 14.22′ | 4.33m |
| Cabin Width (Inside Interior) | 4.33′ | 1.31m |
| Cabin Volume (incl cockpit) | 224 ft³ | 68.27m³ |
| Baggage compartment height | 3′ | 0.91m |
| Baggage compartment width | 3.81′ | 1.16m |
| Baggage compartment length | 4.83′ | 1.47m |
| Baggage compartment volume | 41.8 ft³ | 12.74 m³ |
| Baggage door height | 2.54′ | 0.77m |
| Baggage door width | 1.58′ | 0.48m |
| Baggage compartment load limit | 500 lbs | 226 kg |
Hamilton Standard Hub 33LF-325 / 90” Dia. Blades (3) I033A-0
Honeywell (Garrett) TPE331-43/-43-A
| Max Ramp Weight: (680T) | 9000 lbs / 4082 kg |
| Max Ramp Weight: (680V, 680W) | 9450 lbs./ 4286 kg |
| Take-off Weight: (680T) | 8950 lbs / 4060 kg |
| Take-off Weight: (680V, 680W) | 9400 lbs / 4263 kg |
| Landing Weight: (680T) | 8500 lbs / 3856 kg |
| Landing Weight: (680V, 680W) | 9000 lbs / 4082 kg |
| Standard Empty Weight: (680T, 680V) | 5100 lbs / 2313 kg |
| Standard Empty Weight: (680W) | 5783 lbs / 2623 kg |
| Useful Load: (680T) | 3850 lbs / 1746 kg |
| Useful Load: (680V) | 4300 lbs / 1950 kg |
| Useful Load: (680W) | 3617 lbs / 1640 kg |
| Zero Fuel Weight: | 8000 lbs / 3628.5 kg |
| Normal Cruise Speed (@ 98% RPM @ 16,000 Ft) | 250 mph / 217 kts |
| Best rate of Climb Speed | 110 mph / 95 kts |
| Minimum Control Speed (CAS): | 102 mph / 89 kts |
| Stall Speed, Clean (CAS): | 101 mph / 88 kts |
| Stall Speed, Gear and Flaps Down (CAS): | 93 mph / 81 kts |
| Max Range | 1100 SM / 955.5 NM |