ENJOMOR Gamma Hot Air Stirling Engine Helicopter with Base DIY Model Kit Stem Brand_HY MODELS great gifts for boys

great gifts for boys

The hot cylinder is made of quartz glass

which makes the motor have an effective efficiency of up to 90%

Temperature:50~120℃

also you can use your existing parts to DIY other shapes to create your own unique model

ENJOMOR Gamma Hot Air Stirling Engine Helicopter with Base DIY Model Kit Stem Brand_HY MODELS great gifts for boysENJOMOR Gamma Hot Air Stirling Engine Helicopter with Base DIY Model Kit StemFeatures:. It is not only a beautiful helicopter,but also powered by Gamma Stirling Engine. It can not fly, but when lighting the alcohol lamp , the spinister will spin as if it is ready to take off.. Modeling by CAD and making by CNC elaborated craft. The body adopt aluminium and stainless steel. The stainless steel heating tube will not brust even in extremely thermal