|Sep 22, 2006, 06:33 AM|
Mi-24 Hind on (4stroke O.S.) Hirobo Shuttle
I plan to build Russian Mi-24 Hind on a Shuttle.
I plan to using 4 stroke on it to create more realistic sound..?
Yes, It is very chalanging 4 stroke? 5 main blades? 3 rotor blades?
But first.. Is there someone ever convert Shuttle to 4 stroke?
Yes,, it is only modified engine mount, how is the performance of torque and RPM? etc??
Anyone had experiece of it??
Please tell me...
|Sep 22, 2006, 08:13 AM|
Joined Apr 2003
To the best of my knowledge, no Hind ever had a 4 stroke engine in it, so its going to sound wrong anyway.
If you are going to convert the mechanics to use a different power source, why dont you convert it to electric? At least it will sound like a turbine then.
I have converted several models from glow or gas to electric always with very satisfactory results, although I have never tried it with something as small as a Shuttle, so the only real advise I can offer you is to use a clutch in the transmission to take the load off when trying to spool up a 5 blade head.
|Sep 22, 2006, 09:48 PM|
Look here for my electric Shuttle conversion- video at the end. http://www.rcgroups.com/forums/showthread.php?t=555469 you can't get much more realistic sounding either. I think you're barking up the wrong tree with the 4-stroke idea.
|Sep 23, 2006, 05:49 AM|
Well, thanks for the info..
but I already buy the 4 stroke O.S. 70s engine, i was plan to use it on my UC3D Planes.
but I change my mind to use it in my Hirobo Shuttle.
What are the reasons NOT to use 4 stroke engine on a heli??
Please answer, I just wanna know..
I think there are some heli that sound more like 4 stroke? Jet Ranger?, Bell UH-1B?, R-22? anyone know?? If there is a heli sound like 4 stroke than I plan to build it. Thanks guys..
|Sep 23, 2006, 08:30 AM|
Tokyo Setagaya-Ku, Japan
Joined Jun 2004
Here is an original 90-class Hind (1/9.5 scale) due to a german guy;
So you should make an original fuselage of 70 size by using
Trumpeter 1/35 model:
|Sep 23, 2006, 09:25 AM|
Smelly and slimy residue (not welcome inside most houses)
Carby tuning hassles, especially in hot weather
Fuel storage and transport
Heat build-up inside a scale duselage (especially in your climate)
4-strokes are heavy for their power output, brushless motors outperform even 2 strokes
I would suggest that you use the 4 stroke in a plane and fit brushless electrics in your scale heli.
|Sep 25, 2006, 12:30 AM|
Thank for the link..
I think it is really rare that people use 4 stroke for rc heli, and now electric (bl) get better and better and cheaper and so the battery.. mmm need more money ha ha..
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