RunRyder RC
WATCH
 1 page 674 views POST REPLY
HomeAircraftHelicopterCentury Radikal G20-30 N640 Hawk Predator › Hawk Sport 4 stroke?
04-01-2005 03:46 AM  13 years agoPost 1
Hovergirl

rrNovice

Milwaukee, WI

My Posts: All  Forum  Topic

I've noticed in the instructions to the Hawk Sport I've purchased that a clutch gear is offered for a 4 stroke engine. But I've found no other information on this. Can anyone shed some light on this for me?

Thank you,
Hovergirl

PM  EMAIL  HOMEPAGE  Attn:RR  Quote
04-01-2005 03:56 AM  13 years agoPost 2
A.J.

rrVeteran

Bethlehem, GA

My Posts: All  Forum  Topic

Hovergirl
There was a mod for a century Falcon to make it into a four stroke ship which is then called a Phoenix. Actually i am currently working on an old Falcon converted to a 4 stroke in a scale Bell 222. I think since the gears are so similar, thats where its coming form. There might be a way to put a 4 stroke in a hawk but i have never heard of it.

A.J.

Stratus 90, Synergy E6, Trex 450 Pro

PM  EMAIL  GALLERY  Attn:RR  Quote
04-01-2005 08:37 AM  13 years agoPost 3
Gearhead

rrMaster

Vt

My Posts: All  Forum  Topic

Hi Kandace, nice to see you here on the Century page,,,

OS make's two 52 size 4-strokers, 1 is a plane motor and the other is a heli motor (the heli motor has a longer crank shaft),,,

if you want to use the OS 52 4-stroker heli motor you need to use the Falcon/Raven 50 motor mount, the OS 52 4-stroker has the same mounting patten and the same overall dimensions as the OS 50 2-stroke,,, but as it has been said if you use the 4-stroker you wont have much more power than to fly around and maybe loop,,,

I have been told the Magnum 61 4-stroker has a long crankshaft and has the same mounting patten and the same overall dimensions as the OS 50 2-stroke, all my research has shown me it's all true, but I have not had the 2 motors in my hand to prove so..


Jim

PM  EMAIL  GALLERY  Attn:RR  Quote
04-02-2005 02:10 AM  13 years agoPost 4
Hovergirl

rrNovice

Milwaukee, WI

My Posts: All  Forum  Topic

Thanks for the information, I really appreciate it. I'm thinking of building a Century S300C later in the year and am considering a 4 stroke, The power would probably be fine for the type of flying I would do with it.

What do you think?

Kandace

PM  EMAIL  HOMEPAGE  Attn:RR  Quote
04-02-2005 04:58 AM  13 years agoPost 5
tree_top_chop

rrNovice

California

My Posts: All  Forum  Topic

I've flown a 4 stroke (Legato). Flew for 18 minutes on a tank of fuel. Motor ran hot as you-know-what, but that's normal for that engine.

For general flying around it's fine. I ended up ditching the fancy muffler with the flexible header, it was always breaking and make the motor run really really hot with less power. I used the stock airplane muffler. Louder, but better IMHO.

Nose in I couldn't even hear the motor, only the blades. Tail in was a different story, hehe. Was more of a pain than a 2 stroke.

If you're planning on keeping it right side up, it'll be fine. Be good for scale. With the stock airplane muffler it didn't make harldly any smoke. With the other pipe it made tons and tons of smoke. That's all I've got experience with. The bigger 4 stroke heli's are supposed to do well. The O.S. 52 surpass just didn't have enough power to really perform well. But it was neat while it lasted. Eventually, I got tired of screwing with it and just wanted to fly instead of work on the helicopter all the damn time.

If you're really interested in something different, look at a Davis Diesel Head for a 2 stroke I'd say an O.S. 50 SX-H with a DDH would be interesting!

PM  EMAIL  GALLERY  Attn:RR  Quote
04-02-2005 06:30 AM  13 years agoPost 6
Gearhead

rrMaster

Vt

My Posts: All  Forum  Topic

there is a guy that post here once in a while that is flying a Century S300C with the OS 52 4-stroker in it, he said he loves the sound, I believe his nick name is "Oldtimer" but I can't be sure,,, I suggest if you really want to do this for-sure use the Century aluminum Turbo Fan, and go to a shop and check-out the Magnum 61 against the OS 50 or OS 52 and see if the Magnum will really fit (the 61 would be the way to go), and then PM "Me" to tell me if the Magnum does fit so I can build one LOL


Jim

PM  EMAIL  GALLERY  Attn:RR  Quote
04-02-2005 05:10 PM  13 years agoPost 7
JayLowe

rrNovice

Mason Lake (Grapeview), Washington

My Posts: All  Forum  Topic

Hovergirl,
I built and flew a Phoenix for several years with an OS 52. Loved it. Didn't have much power but it was great for casual flying with a loop or roll. The sound (or lack of) was great - especially during the early morning flights (6am) at the fun flys. I didn't get quite as many 'comments' from the other guys. If anyone else was flying, you couldn't hear it and I had to look at the exhaust smoke to ensure it was still running.

PM  EMAIL  GALLERY  Attn:RR  Quote
04-02-2005 11:51 PM  13 years agoPost 8
Jeff H

rrKey Veteran

Cincinnati, OH

My Posts: All  Forum  Topic

Now if anyone has a YS63 just laying around... That could be interesting.


PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 1 page 674 views POST REPLY
HomeAircraftHelicopterCentury Radikal G20-30 N640 Hawk Predator › Hawk Sport 4 stroke?
 Print TOPIC  Make Suggestion 

 3  Topic Subscribe

Monday, July 23 - 4:58 pm - Copyright © 2000-2018 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online