Gas powered RC Helicopter

UNDERSTANDING GAS RC HELICOPTERS
May 29, 2015 – 07:20 am

Vario Benzin Gas RC HelicopterGas RC helicopters (also called "Gassers") are commonly confused with the much more popular . They are however completely different; or to be more precise, the engine is completely different.

RC gas helicopters themselves are more or less exactly the same as similar sized nitro, turbine, or large electric. Gas powered RC helicopters are fairly big with the smallest being roughly the same size as 90 size nitros or 600 to 700 size electrics.

Century RC's Radikal 20 Gasser seen below spins 600 to 660mm rotor blades, weighs in at about 4.5kg, and is powered by a 20cc two stroke gas/petrol engine.

These 2-stroke gas engines used in gas RC helicopters are very similar to all single cylinder two stroke gasoline engines, just like what you might find in your gas leaf blower or chain saw.

Century RC Radikal G20 Gas RC HelicopterAs far as fuel, they use regular gasoline/petrol mixed with a high quality racing two-cycle engine oil. The sizes of these two stroke engines are also similar to what you might find in a gas powered weed whacker or small chain saw. The most popular 2-stroke gasoline engines for model aircraft are usually in the 20cc-30cc range.

have some interesting differences over the garden tool variety. Click on that link to learn more about these engines and discover the advantages they have over nitro engines. When choosing your gas model engine, you will also be faced with what kind of to use.

Gas RC Helicopter Performance

Century RC Radikal G30 Gas RC Helicopter MechanicsBecause gas powered RC helicopters are fairly large, and powered by rather heavy two stroke petrol engines, the power to weight ratio of Gassers is fairly low compared to that of nitro or electric. You won't find a gas powered heli for example performing the hard core 3D smacking you see the new electric stuff doing these days. That certainly doesn't mean you can't still throw them around, and for sport or light 3D, they are very nice fliers.

The big advantage with gassers is the flight times can be fairly long (up to 30 minutes with some of them), fuel costs are easily half to 1/3 that of nitro, and unlike electric, you don't have to cart a bunch of big expensive LiPo packs around for back to back flights. With a gas RC helicopter, you just land, refuel, and go flying again.

Lastly, if

As seen below on Century RC's Radikal G30; gasser mechanics are not much different than nitro. Perhaps the biggest noticable difference is most gasser engines have side mounted carburetors allowing easier carb tuning access and the ability to fit an air filter if you wish.

A large gas RC helicopter is obviously not your best choice for your first RC heli because of the higher cost of the kit, complexities involved building it, and dangers involved when flying a large model. Gassers (due to the large reciprocating piston mass in the 2-stroke engines) are also vibration prone; so you have to understand how to deal with that on a model RC helicopter as well.

However, once you have mastered a nitro or larger electric helicopter, a gas powered RC helicopter makes a lot of sense for some folks.

Gas Powered Vario Benzin Scale Jet Ranger RC Helicopter Gasser Conversion Kit
Source: www.rchelicopterfun.com
You might also like
Large gas-powered RC model helicopter used as a camera
Large gas-powered RC model helicopter used as a camera ...
Bergen RC Helicopter - Test Flight *gas powered
Bergen RC Helicopter - Test Flight *gas powered
HRP Distribution Align T-Rex 500E Super Combo Kit with Motor, ESC, 4 Servos, Gyro, and Carbon Fiber Blades
Hobby (HRP Distribution)
  • Made using high end components and materials
  • Years of knowledge in the flying RC industry
  • Great for fun or commercial use
  • Simple and light weight design provides awesome flight performance and extreme 3D capability
  • Rigid carbon fiber frame design
  • Beautiful factory painted fiberglass canopy
  • Direct-to-swash CCPM linkage
  • Fully driven tail auto rotation system
GGI International Double Horse 26" 3.5 Channel Outdoor Metal Gyro Remote Control Helicopter
Toy (GGI International)
  • Full function 3.5 channel radio control (turn left, turn right, up, down, forward, backward, can also fly in high or low speed)
  • 3.5 channel digital proportional control.Built in Gyro for Extra Stability
  • Flies over 100m high. 2 powerful 180 main motors + N20 tail motor
  • Complete Kit, Ready to Fly (Everything is included and 100% assembled -- only required 8 AA batteries for the radio transmitter to start flying)
  • Suitable for 14+ ages. Frequencies & Colors vary.
Syma Toys Industrial, Co. Syma S111G 3.5 Channel RC Helicopter with Gyro
Hobby (Syma Toys Industrial, Co.)
  • Stabile Flight Characteristics
  • Easy to Fly
  • Great for Beginners
  • Stable Flight Characteristics
  • Easy to Fly
  • Great for Beginners
  • Battery Type: Lithium Polymer (LiPO Battery)
  • Motor Type: Brushed
Thailand PEAK SHOP Hisky HCP100S 6CH 2.4Ghz Dual Brushless Flybarless RC Helicopter BNF
Toy (Thailand)
  • Description: Lenghth: 293mm Height: 87.5mm Width: 45mm Main Rotor Dia.: 113mm Tail Rotor Dia.: 38.4mm Rotating propeller Dia.: 249mm Weight: 79g Battery: 7.4V 450mAh...
  • module Direct-drive tail rotor Steel main shaft 7.4V 450mAh 25C Lipo Battery 8KV brushless main outrunner motor 8200KV brushless tail outrunner motor Dual brushless...
Meijiaxin MJX F645 F45 4ch LCD 2.4GHZ Large Single Blade Rc Helicopter (Colors may vary)
Toy (Meijiaxin)
  • 4ch 2.4GHZ LCD
  • 70cm
  • MEMS Gyro
  • Metal Body
Related Posts