RVator

My Feedback: (1)

Looking down the road for a fourth plane I was wondering how a YS 63 would power a Funtana. Would it be better than a 72 Saito?
I would like to try a YS and Cental Hobbies has them on sale for 219.00. How will the YS run on 15% nitro fuel? I see lots of folks that talk about 20 - 30 % nitro on YS engines. Is it needed?

Spaceclam

ys engines are great engines. first of all, i assume you are looking at a funtana 40. a 63 four stroke would be a bit underpowered with 15% nitro on a 40 size plane. ys engines are competition engines and designed to compete with the modern four strokes of the day in power to weight ratios. if i put a 63 in there i would use 30% nitro. however, you may not get straight vertical performance. even if you do have unlimited vertical, you will notice it will be sluggish to pull out of a hover. for a 40 size 3d plane, a two stroke may be a better choice because the added weight makes a much bigger difference in smaller planes. for instance, the 68 inch yak coming out from extreme flight has superb performance with a ys 110 A(the engine i have waiting for one of those babys) and you would not really notice any increase in performance by going to a two stroke. however, going between a two and four stroke motor for that plane would really make a lot more difference. just to be sure, it is the funtana 40, right?

RVator

My Feedback: (1)

Yeah, Hangar 9 funtana 40 size.

Richard L.

My Feedback: (24)

A YS 63 would be great in the 40 size Funtana. Yes, it's better than a Saito 72, but you will want to use at least 20% nitro fuel. The 40 size UCD does better on the YS 63 than on the Saito 72, so I would expect to get similar results on the Funtana.

wildnloose

I remember the Funtana being around 5.5lbs(AUW). The 63 should pull it around nice(I saw a guy hover one with a 46). I see a lot of people putting 91's in this plane, really don't understand why you would need this much power...but then again, I have never flown one with that much power. Maybe you need to use a bigger prop because of that fat nose.

You need at least 20% with the ys, but be careful....if you go 30% you will never use anything else

Hellcat716

My Feedback: (2)

YS 63 with 20% fuel is perfect for this plane.

Dauntae

I downloaded a video a while ago with the funtana and it had a YS 63fz and he was doing rolling hariers torque rolls and prop hanging and all of it was about 5-10 feet up and it had no trouble pulling that plane out of anything. Not sure what fuel he used but I had a YS 63FZ on a 5 1/2 pound plane and it had gobs of power and had unlimeted verticle with 20% but I started out using 15% and still had great power just didn't run as smooth as with the 20% but still ran well, I am also considering the Funtana for my 63 so just do it because it will power it just great.

Dauntae

dean320

My Feedback: (5)

I have this exact combination waiting to be put together. The owner of the shop I bought this from has the exact combination and says the YS63 is perfect for this plane.

m.gramling

My Feedback: (8)

I had my YS63 on a 5lb 4oz. KNIFE ARf profile, and pullout of of a hover was not problem.
there are a few things differant from the profile, then the funtana. the funtana has a tapered wing, so there should be less drag then the knife, fat constant cord wing, and the the fuselage was less than a 1/2" thick. but the funtana is gonna have that big cowl up there so that would great some drag to.

I just don't know how it would do with a 5.5lb plane.

Of friend of mine it putting one together, he is using a Saito 91. He said his wing loading was still gonna come out at 17oz/ft. So his airplane should still fly OK because his wing loading is in the acceptable range. He said he is going to run a Li-poly battery so that would make up for the weight differant of the Saito91.

ben flyn

Here at 5000 ft. elevation, It take full throttle to hover it with a YS63. A Saito 91 will hover it at 1/2 throttle.

wildnloose

Well that settles it then, may as well go with a Saito 100 (tad lighter than 91)...heck, put a ys 110 on front and take off like the space shuttle

Spaceclam

not ony would it take off like the space shuttle, you would never get it to sti in one spot at idle it would have so much thrust.

TT2

My Feedback: (13)

I originally built mine with a Saito .91 and standard-sized HS605 servos...HS81 for throttle. Kept it light with a 720mah Nimh pack and CF gear (of course!). Vertical performance was astounding to say the least...more power than necessary (did I just say that?). I've found the plane to have some 'quirks' that I just couldn't seem to get ironed out...wanted to snap unpredictably at low airspeeds. This made any low-altitude stalled maneuver quite scary...and not much fun.

I have found on many other planes that by reducing the wingloading even slightly the snapping tendancies will begin to disappear. Also found that with the Saito .91 that I couldn't get the CG as far back as needed without either relocating the battery pack aft of the bulkhead near the rear of the canopy OR adding lead at the tail (which I refuse to do).

I plan on replacing the aileron servos with HS225s, using an HS225 for rudder, and either one HS225 or (preferably) two HS81 micros for the elevators. Power will come from either a YS63 or Saito 72. These changes will lighten the plane by at least 5 oz and should make it much more enjoyable to fly. Don't get me wrong...it doesn't fly BAD now, but it doesn't do 3D as well as I had hoped.

-Tom

dirtdr

has anyone heard of or seen a funtana with the new OS 70 ultimate??? It is supposed to be lighter than the Saito 72 and pumped...

deputydog

Well, lets put the myth to rest! Yes, the 63 is perfect for the funtana. I was running a 14x4W apc with 30% nitro. Should have zigged when it zagged at low level though[&o].

Oh and I had a YS 53 on a Extreme 330(5lb) and it would shoot out of a hover too!

joeb102072

My Feedback: (9)

If spooling is an issue try the 13 x 4w on the YS .63 I have mine on a Morris knife kit not ARF and its a demon. At 5.5 lbs it hovers just under 1/2 throttle. My brother has a Funtana 40 with a OS 70 absolute dog with this engine. If power is your thing try the .63 YS (IMO More powerful than the OS 70) or the new saito .82 lighter than the OS 70 and saito 72 25% more power I heard its a beast.



OOPS Didnt notice how old this thrad was.