SKU: 9023733543

Stirling Engine Model Military Helicopter Design Science Metal Toy Collection Children Kids Educational Experiment

Sale price$75.59 Regular price$83.99
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Description

Stirling Engine Model Military Helicopter Design Science Metal Toy Collection Children Kids Educational ExperimentArmed Version Helicopter Horizontal Single Cylinder Vacuum Stirling Model Toy Silver Features: Working Theory: burning alcohol lamp provides heat power to make the expansion of gas inside, then the gas molecular internal power increasing and working strongly to the flywheel. With the help of the rotating wing, heat energy will convert into mechanical work. Great educational toy, classroom or laboratory experimental teaching aids, cultivate children's

Armed Version Helicopter Horizontal Single Cylinder Vacuum Stirling Model Toy - Silver

Features:

Working Theory: burning alcohol lamp provides heat power to make the expansion of gas inside, then the gas molecular internal power increasing and working strongly to the flywheel.
With the help of the rotating wing, heat energy will convert into mechanical work.
Great educational toy, classroom or laboratory experimental teaching aids, cultivate children's interest in physics.
Perfect gift for your friends or families; also the helicopter design is a super addition for home decor.
The stirling engine model produced with quality material and fine workmanship to avoid rusting and prolong life.

Usage:
Placed the Stirling engine in a horizontal position, use your hand to toggle the flywheel to see if it is smooth.
Check if every sliding parts is clean.
Light the alcohol burner, toggle the flywheel after 2 minutes.

Note:
After using it please let the engine natural cool.
Do not touch the alcohol burner burned tube or the metal to avoid burns.
Rods at both ends of the moving joint parts need to regularly add oil lubrication.
Please be careful of the angular parts while the engine working.


Specifications:

.Color: As Shown
.Material: Aluminum Alloy + Copper + Stainless Steel
.Product Weight: 700g
.Package Dimensions: 19*11*14cm
.Package Weight: 750g
.Packing: Box

Package Content:

.1Set x Stirling Model Toy

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Exchange/Return Notes
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SKU: 9023733543

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johanna
Port Orchard, US
★★★★★ 5
Tonico
Me gustó mucho, promete lo que dice y tiene buenos ingredientes y es grande
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Reviewed in the United States on April 27, 2026
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Whiting, US
★★★★★ 5
Effective
I normally do not have oily skin, however lately my forehead and nose have been super oily and it's driving me crazy! Maybe I overdid it with tons of new skincare I've been trying out. I recently got the Thayer's milky toner and I love it so so much, but I thought I should try this one instead because my face gets greasy halfway through the work day lately. I've been using this after washing my face before bed and when I wake up and I think it is working so well to reduce the oily skin. It's also this really unique jelly texture and feels cool and smooth on my skin
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Reviewed in the United States on January 14, 2026
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CGrizzy
Boise, US
★★★★★ 5
Clean product
This is a great value for the price you pay for the product. It’s easy to use. It does have a gel type consistency, That’s very easy to put on your face. It does not have any lingering smell or odor. And it does a nice job of helping to absorb extra oil on my face.
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Reviewed in the United States on January 19, 2026
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ruby
Massapequa, US
★★★★★ 4
Good for oily skin/not overly drying!
Love this!! My skin actually feels a lot less oily during the day and it doesn’t dry my skin out either. The smell is a tiny bit weird but it doesn’t really bother me and it dissipates quickly after applying.
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Reviewed in the United States on December 17, 2025
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sydney ellis
Dallas, US
★★★★★ 5
Uhhhh it works?!
i’m 25 yr old girl and i’ve always had very very oily skin, to the point where i have charcoal oil absorbing pads that i use on a daily to help with oil control, i seen this product and i’ve been using it for less than a week at morning and at night and my skin is WAY less oily than it was a week ago, im actually so surprised this worked for me a lot of products let me down
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Reviewed in the United States on May 4, 2026

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