Bob Laine

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I realize that this will open up a can of worms that will cover everything except my question. I want to know which engine is better suited to fly a 30 lb plane swinging a 22/10 Prop. A G-62 or a DA 50. I have never compared the two, but I feel like the G-62 would have more power and torque with a 22/10 Prop, than would a DA 50. I would really like some input from those that have had actual experience between the two. Like I said, I realize that the DA is the new kid on the block, and the G-62 is an old workhorse but for those of you that can really toss aside your pride, and really be subjective, let's here from you.

TOPGUN130643

My Feedback: (38)

I don't know about the 30 pound plane but I did fly the Patty Wagstaff by great planes with the zenoah on it and the same plane with the DA 50 on it and the perfromance with the DA 50 was a whole lot better. Stronger vertical performance and pulled the plane with a whole lot more authority.

Bob Laine

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What prop were you using and was the Zenoah broken in yet? Is that the engine that Ronnie had to send back to Horizon?

RTK

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I have an RCIGN1 lightened g-62, it will weigh about the same as a DA50 with a can. The one thing to note is that the 62 likes to run at a higher rpm than the 50 to be at the top of the torque curve, that's the way it was designed. If you load it down it will be a turkey.

I feel they are very close in power. Oh by the way I do not own a 50 but have seen many perform.

TOPGUN130643

My Feedback: (38)

the prop was a 22/10 on both engines and neither engine was broken in it was ronnies but i don't know if he had to send it back to zenoah are not i do know he was going to put it on p51 but decided to go with a da 50r instead

Bob Laine

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Thanks for your input. I'm talkin one particular Prop size, and one weight.

RTK

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All prop are not created equal. Some 22x10's are great, others are just a POS.

Nogyro

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I've had both on a WH 28% Edge. The G62 was flown the previous 3 years on a 20lb Giant Stinger. Same Mejzlik 22 x 10 prop on both. G62 was around 7600, DA50 around 7400 give or take a bit. The Edge is a much better performer with the DA50. Lost about 1 1/2 lbs on the switch. I would guess that on a 30 lb. bird, you would need the nose weight of a G62.............I would have to dig out my records, but I believe the DA will be close to a pound lighter than the G62 when it's all said and done.

Bob Laine

My Feedback: (91)

OK I still think that the Zenoah G-62 will pull a 22/10 prop faster than a DA 50. Most of the guy's I know that are running DA 50's are using 22/8 or 21/10's. Just my thoughts. we'll see what everyone else thinks.

Bob Laine

My Feedback: (91)

All props are not created equal true......I'm talking same prop on two different engines.

TooLy

I have a few friends with the DA swinning 22x10 on DV and 23X8 on yak, both pull very good.

3D Joy

If the idea of returning the engine to the manufacturer makes you feel bad and the weight is of little concern, then the Zen is the way to go. Service from DA is GREAT but if you have to use it often, then it is not great at all. Zenoah engines are very reliable and dependable.

Bob Laine

My Feedback: (91)

I have no problem returning engines to the MFG for service. As with everything else in life, any mechanical device is subject to need attention once in a while. Heck... I, even need a tune up ocasionally, even if my wife thinks different. This poll is not to see which engine is the most popular, but only to compare one against the other given the same set of circumstances. Right now the DA is the most popular with the 50cc crowd. But then again, if you look at the "Warbird" crowd, it's a different story. My brother has a Zenoah G-62 that I sold him that has been converted to "Syncro Spark" ignition, with the excess weight shaved off and it's just as light as the DA 50. Not as bright and pretty as the Zenoah, but runs great just the same.

davewallace

My Feedback: (29)

Hi Bob,
I think everyone is talking about lightly loaded planes. When you talk about a thirty pound ship, there is no subsitute for cubic inches. For minimum aerobatics a thirty pound plane usually requires a 80cc motor or more. Under load I think that a work horse will out perform a race horse anyday. We are talking almost double the weight of the typical DA50 ship. Go with the proven performer in its element.

Dave

Bob Laine

My Feedback: (91)

I agree completely with your comments. My reason for the question was I had someone tell me that his DA 50 would out perform a G-62 under any set of circumstances. I dissagree. A good example is to compare circular saws. 1 saw may have more horsepower than another or the other may have more "amps" than the high horsepower saw.
I'll take the big amp saw and do much more cutting without getting it hot. Check the HP on a Nelson Glo engine, then try and put a large prop on it.

Antique

My Feedback: (4)

GREAT reply, been saying the same about HP for years...
FWIW...I tested a DA50 a few years ago when they first came out..Would not turn the same rpm on a 22-10 Zinger that a G62 would....I put a thread about it in the forum, probably gone by now....

TOPGUN130643

My Feedback: (38)

Now we are stretching it. I never said the DA50 would be better in any circumstances than a G62. I don't know about flying a 30 pound airplane with a G62 or A DA50. If I owned a 30 pound airplane I would spend a little more money and buy an appropriate engine for that airplane. Since I am not flying circular saws I will say once again that I did try the G62 and the DA50 on a great planes Patty Wagstaff and the DA50 flew the plane with a lot more authority than the G62 did.It is my belief that the DA 50 has more power than the G62.

cloudshaker

My Feedback: (32)

It happens everytime, The origional question of this post was which engine would be better suited to fly a 30lb plane with a particular prop. Both are great engines, However DA states most torque in its class and I believe them. I own both I have flown both on the same aircraft with the same prop. DA was superior to the Zenoah in vibration, transition and performance. When the aircraft pulled into steep verticle climb the DA definitly out performed the G-62. That said the G-62 is a workhorse and shines in its own arena. When pulling a heavy airframe with an engine that is undersized for the application, I would think that torque would definatly need to be a consideration. Anyway this post moved from the best for a 30 lb plane with a particular prop to which would out tach which, to which is better. As far as taching an engine everyone of you knows that you can have two of the same engines with the same prop, and you could get different tach readings. so to sum up ,my answer to the origional question is "neither" both engines are underpowered for a 30 lb airframe. anyway have fun trying to get everyone else to agree with your particular engine loyalty. Thats my story and I'm sticking to it. Oh Yea as far as the skill saws I know my Makita saw will fly a 2x4 twice as fast as yours

HighRoller

I just got to the thread, so here goes. When John and I flew the Wagstaff with the G-62 it was in perfect running order. Its true I sent the engine for service but that was required due to servo failure, not anything that had to do with the engines performance. That said, even with the limited experience I have with gas I can say that I believe the DA, was definitly more powerful than the G62 on same plane ,same prop. I am not taking any side just stating facts surrounding my particular engines, and airplane, as well as my opinion. Trust me when I say I am not a "DA ALL THE WAY PERSON" but I would chose a DA over Zenoah for most similar applications, for more reasons than just power to power. You both know that I am fixing to have my first 3W experience so maybe soon I'll say 3W is way better than both, at which point I am sure you may both say I don't know what I am talkin about.

JettPilot

My Feedback: (6)

Reeds are for musical instruments, not engines..

Get the Zenoah G-62. It is not quite as light as the DA but it will last a LOT longer. The Zenoah will live longer than you will, you can pass it down to your grandkids. If you even look at the DA wrong, it will break something. Unless you NEVER NEVER hit a prop, or have a tip over, do not get the DA. A Zenoah will handle mishaps that will put the DA in the hospital.

Lastly, the Zenoah has a built in ignition. LESS radio noise, and you never have to worry about batteries, etc. etc. You start the zenoah and it will run all day, every day if you like. You set up the Zenoah ONCE, and then basically forget its there, because it just WORKS

bpryor

My Feedback: (45)

That statement is definitely very debatable, but we would have to start a whole new thread to beat that one around again..and again...and again.

To the point. I've owned G-62's in years past, and state-of-the-art current 50cc motors, though not a DA50, but I'm still throwing in my two-cents. The G-62 with better torque should be a better performer in this application on a 22X10. And...a G-62 is plenty of engine for a 30 lb plane depending on its application. I'm sure it would fly it in a very "scale" manner. I had a 40% Aeronca Sedan(50+lbs) that had a Brison 5.8 in it and it flew very well. I don't think Bob is talking about doing 3D with it. I'd pick the G-62 in this very rare case, but it certainly wouldn't be my choice for a typical application.

BTW, I'm calling you on that one Bob. I'd be willing to bet there are no G-62's that weigh the same as a DA50...unless it has the crank out of it. :-) Stock G-62's weigh close to 1.75 lbs more than a DA-50, and switching to an electronic ignition is not going to save you that kind of weight unless you've found a way to break the laws of physics. :-) Ralph, what do your fully massaged G-62's weigh sans muffler?

Bob Laine

My Feedback: (91)

My question was directed to one particular set of circumstances. "The same Prop" 22/10, on a 30lb aircraft, using two different engines. Zenoah G-62 VS DA 50. I wasn't interested in a comparison between the two engines on a "Patti Wagstaff", which creates an entirely different scenairo all together. However, since that comparrison was mentioned on this thread, I'll give my humble opinion on it. If one were to take a "GP, 78" Patti Wagstaff ", and install the two different above named engines on the "Patti Wagstaff," the DA 50, would still lose the race to the Zenoah. Here's why I feel that way. Let's assume that the "Zenoah" had been converted to electronic ignition, and the excess weight removed from it's crankcase so that it was favorable in weight to the "DA 50", The G-62 then could be "Propped" for it's maxium power band, ( much larger prop ) The DA 50 would still lose out. Let's Prop both engines with a 24/10. In this case the "DA 50" even though it has more "Horse Power" it would be unable attain the nescessary RPM'S to reach it's "Maxium Horse Power". simply because it was "Over Propped" In this example The G-62, turning a 24/10 prop on a "Patti Wagstaff", would still out perform the DA 50. As someone else said above, " There is no substitute for cubic inches".

Antique

My Feedback: (4)

The one I just converted weighs 4 lbs 5 oz..Add 2 oz for a battery...
I could probably take off a few more oz by making the fins smaller like a ZDZ, making the hub smaller, and using syncro spark instead of my ball bearing spark advance...4 lbs is very possible, never really tried....

bpryor

My Feedback: (45)

Thanks Ralph, that sounds right about what I'd expect. Very good for a 60.

Bob Laine

My Feedback: (91)

I slipped, I meant to say almost as lite.