Names and dates
| Market original model designation | 21 | | Market model designation (english translation or spelling) | 21 | | Original model name | Silver Beetle | | Model name (english translation or spelling) | Silver Beetle | | First flight date and time | | | Country of manufacture | USA |
Config info
| Rotorcraft type | Helicopter | | Config | Coaxial rotors |
Weights
| Maximum Takeoff Weight (MTOW) | | | Manufacturers empty weight (MEW) | |
Cabin and cockpit
| Maximum number of people onboard | 2 |
Main rotor
| Main rotor diameter | | | Main rotor angular speed | | | Number of blades | 2 |
Powerplant
| Engine model | Continental C125 | | Total maximum power | |
Performance
| Maximum horizontal flight speed (Vh) | | | Cruise speed (Vc) | | | Maximum service ceiling | | | Maximum range | |
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