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Description
RCGF 31cc 3.7HP 7800rpm Fixed Wing Twin Air Cooled Double-cylinder 2-stroke Gasoline Engine for RC AircraftRCGF 31cc 3. 7HP 7800rpm Fixed Wing Twin Air Cooled Double cylinder 2 stroke Gasoline Engine for RC AircraftFeatures:. The engine is specially designed for large fixed wing aircraft models, with excellent quality and reasonable price.. With smooth operation and strong power, you can get a smoother flight experience, bringing low vibration stability and unique sound effects of horizontally opposed twins to your aircraft.. We provide you with the best
RCGF 31cc 3.7HP 7800rpm Fixed Wing Twin Air Cooled Double-cylinder 2-stroke Gasoline Engine for RC AircraftFeatures:
.The engine is specially designed for large fixed-wing aircraft models, with excellent quality and reasonable price.
.With smooth operation and strong power, you can get a smoother flight experience, bringing low-vibration stability and unique sound effects of horizontally opposed twins to your aircraft.
.We provide you with the best quality products and services, for the products have any questions, please consult us, we will provide you with the best quality after-sales service and protection.
.For Ages: 14+
Specifications:
.Color: As Shown
.Material: Metal
.Model Type: 2-stroke piston valve type gasoline engine for airplane
.Cooling System: Air cooling
.Performance: 3.7HP/7800rpm
.Idle Speed: 2000rpm
.Static Thrust: 17.2 lb (15kg) @328 ft (100m) height, 15.3 lb (13kg) @5900 ft (1800m) height
.Displacement: 31cc (1.89cu in)
.Bore Diameter x Stroke (mm): 1.26in(32mm) x 0.77in(19.6mm)
.Compression Ratio: 8:1
.Lubrication Ratio: 30:1
.Carburetor: Walbro
.Ignition Method: DC-CDI
.Power Supply: 6-14V
.Spark Plug: NGK-CM6
.Requirements: Gasoline, 2-stroke oil, ignition battery and propeller
.Gasoline: Pre-mixed fuel, 25-40 gasoline: 1 engine oil (recommended 30:1)
.Lubricant: 2-stroke oil
.Recommended Propeller: 18 x 8, 18 x 10, 19 x 8, 20 x 8
.Exhaust Pipe Weight: 2.7oz (76g) x 2
.Igniter Weight: 6.2oz (175g)
.Host Weight: 2.04 lb (927g)
.Product Weight: 927g
.Package Dimensions: 25 x 10 x 15cm
.Package Weight: 1300g
.Packing: Box
Package Content:
.1 x Engine
.1 x Exhaust Pipe
.1 x CDI Igniter
.1 x Spark Plug
.1Set x Screw
.1Set x Gasket
.1Set x Bracket
.1 x User Manual
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 5
The best pillow for side and back sleeping
Style: King - Medium
Bought this pillow for my husband, he loves it. He is back sleeping and has been the best pillow so far. Worth the money. With buy one for me and my daughter. It’s a little pricey but when it comes to sleeping it’s worth the money.highly recommend
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Reviewed in the United States on May 13, 2026
★★★★★ 5
Best pillow ever
Style: Standard – Low
I have to say, after decades of buying all sorts of pillows, trying to work for me and my short neck, this is THE one.
I bought the low profile ones and OMG it is just perfect for me. I'm finally getting a good nights sleep without fighting a pillow that is too firm or doubling a pillow that is too soft and thin. It's also not as heavy as other memory foam pillows I've tried. I hate a heavy pillow. Yet, it isn't so light weight that it gets pushed off the bed easily if you change positions a lot during the night.
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Reviewed in the United States on May 27, 2026
★★★★★ 5
Amazing. The Perfect Pillow for Side Sleepers with neck pain!
Size: Queen (High Loft), Number of Items: 1
I do have to update my experience. This still is a very comfortable pillow, it's just I can't sleep with it under my head (it's now my hug pillow). After using for 2 weeks, I developed severe neck spasms. Pillows are very individulized and as it turns out, I probably need a firmer pillow than this "highly" comfortable pillow can offer.
Will NOT change my rating.
Wow! I'm impressed with this pillow so far. I'm a side sleeper mostly but chose the medium-high loft 6.2" as recommended which was the perfect height. I didn't see any taller options but this has turned out just right. I did hours of research before chosing this product, which turned out to be advantageous.
It's not as cooling as my old memory foam pillow with the gel layer but it stays cool long enough that I don't have to move the pillow around to be comfortable before falling asleep. It's surprising lightweight. I like it much more than any memory foam I've ever had. The best news was that within a few days my headaches and neck pain have improved by 80%. I am really very impressed with the quality of this pillow. It is softer than I anticipated but still firm enough to keep my head elevated giving me perfect spine alignment and great support. It truly is the MOST COMFORTABLE supportive Pillow I have ever slept on!
The smell is only minor at It's worst and has nearly disappeared after just 4 days. It is a mild latex smell but definitely NOT petroleum. It's in the moderate price range at ~$100 and worth every cent. High value for the price.
I really really like this pillow and highly recommend it. Big fan! Might irder a 2nd as a backup if it doesn't last but it's so well made I feel that won't be a problem.
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Reviewed in the United States on January 22, 2026
★★★★★ 5
Almohada
Size: Standard (Mid Loft), Number of Items: 1, Size: Standard (Mid Loft), Number of Items: 1
The pillow is of very good quality—it is worth every penny spent. It is soft, and my daughter sleeps very comfortably.
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Reviewed in the United States on May 25, 2026
★★★★★ 5
Excellent comfort and support!
Size: Standard (Mid Loft), Number of Items: 1
The pillow feels premium from the first night and delivers soft and stable support. The pillow holds its shape and didn't have any chemical smell out of box. Worth the price and I would buy it again.
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Reviewed in the United States on December 30, 2025
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