This beautiful double arm Stirling engine emulates a butterfly's wing beat. The Deluxe Flyer combines simple elegance with power. The quality and care of design on this Boehm produced engine make it the perfect gift or classroom accessory. Fuel not included; please use methylated-spirits, i.e. denatured alcohol.
Specifications:
- Materials: Stainless steel screws, polished stainless steel guide components, polished massive brass wheels and cylinder.
- Combustion/operation time: approx. 15-20 min
- Rotational frequency range: 800—2000 rpm (depending on flame size and spacing)

