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RCGF Stinger 40cc TWIN
Smooth operation — Smaller size
NEW ENGINE，NEW DESIGN ！
New Engines, Small Size ,angled plug with 1/4-32 plugs.
It’s your very good choice for small size twin cylinder engine
Parameter
| Type | 2 cycle piston valve type gasoline engine for airplane |
|---|---|
| Displacement (cc) | 40cc(2.44 cu.in) |
| Bore x Stroke (mm) | 1.26 in(32mm) x 1.02 in (26mm) |
| Recommended props | 19×8, 19×10, 20×8 & 20×10 |
| Maximum Output | 4.6HP/8600rmp |
| Power supply | 7.4V-14V |
- Carburetor : Walbro
- Ignition : Stinger DC-CDI (Computer Controlled auto advance, electronic ignition system)
- SPARK PLUG: M8(1/4-32)
- Requires: Gasoline, 2-cycle oil, ignition battery & propeller
- speed rang : 1500-8600rpm
- Gasoline-Version : Pre-mixed Fuel, 25-40 (Gasoline):1 (recommended : 32:1 for real oil, or 40:1 for synthetic oil)
- Lubrication Oil : High quality fully synthetic 2 cylinder oil such as Motul 800 2T 100% synthetic racing motro oil , Red line two-stroke racing motor oil , Stihl Ultra high performance 2 cycle fully synthetic engine oil etc .
- Break in Propeller : 19X8 (Standard Two leafs prop)
- Cooling System : Air Cooled
- RCGF Stinger Engine package Includes: electronic CDI ignition, muffler, spark plug, gaskets, bolts, throttle arm extension & manual.
- Engine: 2.32 lb (1052g)
- 2XMuffler: 4.45 oz (126 g)
- Ignition Module: 5.1 oz (145 g)
- Total: Weight: 2.92 lb (1323 g)
- Ignition Battery: 7.4V-14VNiCd or NiMH, 7.4V LiFe or 2S LiPo pack ( DO NOT use BEC, iBEC or uBEC)
- Gasoline/Oil Mix: (recommended : 32:1 for real oil, or 40:1 for synthetic oil)
- Replacement Spark Plug: M8 1/4-32 or equivalent
- Idle Speed: 1500 rpm/min
| Weight | 7.5 kg |
|---|---|
| color |
Latest reviews
| 5 star | 80% | |
| 4 star | 4% | |
| 3 star | 4% | |
| 2 star | 4% | |
| 1 star | 4% |
1-5 of 21 reviews
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Q & A
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Will a 6V NiMH battery not be sufficient for this ignition? States it requires 7-14V. I’ve run the engine…with ignition on 6V and seems to run finr.
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What is default needle settings for the 40 Twin?
The 40cc Twin Stinger default needle settings are, 1.7 turns on the low needle and 1.75 turns on the high needle..
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What is default settings for low&highspeed needles?
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What is the static thrust of the 40 twin?
I measured 9.0 kg static thrust with a Biela 20x8 twofold Propeller and original mufflers. A little less when adding additional silencers
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What size gas tank do guys use for the RCGF 40cc Twin on the Ultra Stick 30cc plane?
30 oz
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It has the wrong spark plugs. I ordered this engine for the small 1/4 x32 spark plugs and have been in touch with Ryan at legend hobby and have heard any more about a remedy. Still Waiting
Received engine with missing parts.
Missing muffler bolts and gaskets, engine standoffs, spark plugs.
Nice engine, excellent service
I purchased my first Stinger, a 40 twin, and installed it inside the cowl on my Goldberg Yak 54 which is 77″ wingspan and quite a pig by todays standards. At 14 lbs, this is a heavy plane compared to most. This engine pulls it with authority and sounds great! Always hand starts and I broke it in while flying. I have one DLE 20 and it runs good, but lost all compression after 12 flights. I installed a Bowman ring and the compression has come back. But why should I have to do that with any engine? I’m now a Stinger fan, and will buy my next gasser here.
Super Fast Shipping and got exactly what I ordered!