small gas engine?
12-26-2002, 05:35 AM
#1
Thread Starter
Join Date: Dec 2002
Location: West Linn,
OR
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
small gas engine?
I'm building a 1/5th scale S.E.5a (Dynaflite). It calls for a .90 to 1.20 4-stroke. I want to use a gas engine, but the smallest and lightest I can find is a Zenoah G-26 at just over 3.5 pounds. Is there a reliable gas engine that is closer to .90 size in power and weight? I want scale performance - sound - look. I'm afraid the G-26 is too much power and weight.
12-26-2002, 06:10 AM
#2
Senior Member
My Feedback: (7)
Join Date: Jan 2002
Location: KS
Posts: 575
Likes: 0
Received 0 Likes
on
0 Posts
G26
The SE5 has more than enough wing for the weight, not a problem , The cowl looks to be big enough to apply what ever muffler that may help with sound, AS for power , Half throttle should fly it just fine, don't have to use full throttle if you don't want to. The one I seen fly used a 120 rcv engine and it flew great. I don't know of any .90 size production made Gas engines, there may be some that converted a glow to gas. But IMO the G23 or the G26 will work great and be reliable and cheap to run.
12-26-2002, 06:52 PM
#4
Senior Member
My Feedback: (2)
Join Date: Mar 2002
Location: CA
Posts: 391
Likes: 0
Received 0 Likes
on
0 Posts
Second on the RCS!!
I'll Second Jemo's recommendation on the RCS 1.40!
Perfect for your application....
Love mine....
www.rcshowcase.com
HighFlights!
CrazyHerb
Perfect for your application....
Love mine....
www.rcshowcase.com
HighFlights!
CrazyHerb
12-27-2002, 03:05 AM
#8
Senior Member
Join Date: Aug 2002
Location: Lewiston,
NY
Posts: 184
Likes: 0
Received 0 Likes
on
0 Posts
3W24
I have one and it's great.Yeah drilling out props is a pain,but the motor runs like a bear.I have it on my Creek Katana.Well worth the money and little extra work.
12-27-2002, 04:53 PM
#10
Thread Starter
Join Date: Dec 2002
Location: West Linn,
OR
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
Re: G26
Originally posted by Dave Bowles
The SE5 has more than enough wing for the weight, not a problem , The cowl looks to be big enough to apply what ever muffler that may help with sound, AS for power , Half throttle should fly it just fine, don't have to use full throttle if you don't want to. The one I seen fly used a 120 rcv engine and it flew great. I don't know of any .90 size production made Gas engines, there may be some that converted a glow to gas. But IMO the G23 or the G26 will work great and be reliable and cheap to run.
The SE5 has more than enough wing for the weight, not a problem , The cowl looks to be big enough to apply what ever muffler that may help with sound, AS for power , Half throttle should fly it just fine, don't have to use full throttle if you don't want to. The one I seen fly used a 120 rcv engine and it flew great. I don't know of any .90 size production made Gas engines, there may be some that converted a glow to gas. But IMO the G23 or the G26 will work great and be reliable and cheap to run.
12-27-2002, 05:53 PM
#11
My Feedback: (8)
Join Date: Dec 2001
Location: Colorado Springs,
CO
Posts: 1,359
Likes: 0
Received 2 Likes
on
2 Posts
3W-24 again
Don't overlook this engine. It weighs 42.4 ounces and the ignition advances the timing for better starts and more power at full throttle. I don't believe the FPE engines have ignition timing advance-a big disadvantage in my opinion.
The 3W-24 is equal in power to the Zenoah G38. It'll turn an 18x10 or 20x8 prop with no problem once broken in.
http://www.aircraftinternational.com/
The 3W-24 is equal in power to the Zenoah G38. It'll turn an 18x10 or 20x8 prop with no problem once broken in.
http://www.aircraftinternational.com/
12-27-2002, 05:56 PM
#12
small gas engine?
If weight distribution is a concern, plan a hatch into the bottom of the fuse just ahead of the tail and mount all your radio equipment there. Not only will it counter the heavy engine up front but it'll give you good physical isolation from the ignition source and short runs from the servos to the control surfaces and be completely hidden yet accessable.
I've done this with two planes that I powered with Maculloch 28cc engines.
One of them was a Balsa USA Phaeton 90 which has slightly more wing area at 1576 sq. inches....but still is close in size to the Dynaflite SE-5. At any rate, the Mac flew this plane very realistically for several years and it's a bit heavier and puts out less power than the G-23 or any other engine mentioned in this thread.
Gas engines are very reliable and easy to operate once you learn a few procedures for proper setup, starting, etc.
I've done this with two planes that I powered with Maculloch 28cc engines.
One of them was a Balsa USA Phaeton 90 which has slightly more wing area at 1576 sq. inches....but still is close in size to the Dynaflite SE-5. At any rate, the Mac flew this plane very realistically for several years and it's a bit heavier and puts out less power than the G-23 or any other engine mentioned in this thread.
Gas engines are very reliable and easy to operate once you learn a few procedures for proper setup, starting, etc.
12-27-2002, 07:16 PM
#13
Senior Member
My Feedback: (4)
Join Date: Jul 2002
Location: Somewhere,
DC
Posts: 9,825
Likes: 0
Received 0 Likes
on
0 Posts
small gas engine?
Ignition advance and retard for starting is vastly overrated on small engines like these...If an engine is correctly timed in the first for full power all the advance and retard in the world will not make it more powerful..If FPE chooses to time their engines at less than what is needed for full power, that's their problem..Makes more business for us ignition people to correct it. 
Guess I'll have to test my 40 oz G260 with an 18-8 and 20-08...
Guess I'll have to test my 40 oz G260 with an 18-8 and 20-08...
