blhollo2

My Feedback: (278)

So i have a 29% great planes christan eagle, and it weighs in at 19lbs with the zenoah g62 its heavy, I'm looking to lighten things up a bit while keeping great power in mind, would there be a drastic change of power? or would this be a bad choice?

SPECS on DL50:
General Specs:
- Bore: 1.693 (in.)
- Stroke: 1.378 (in.)
- Shaft: Single + 4 bolt
- Low RPM: 1350
- High RPM: 9000
- HP: 5.200 bhp@7500 RPM
- Weight: 47.62 oz.

SPECS on Zenoah G62
General Specs:
- Bore: 1.900 (in.)
- Stroke: 1.400 (in.)
- Shaft: 10 x 1.25mm thread
- Low RPM: 2000
- High RPM: 10000
- HP: 4.750 bhp
- Weight: 73.00 oz.

Tired Old Man

My Feedback: (1)

You want the lightest engine you can get on the nose of the 1/3 Eagle and 1/3 Pitts. Realistically, an old BME 50 or ZDZ 40 would be better choices. The current BME 58 is pretty light as well. Even a DA 50 weighs more than you want up there. Any weights above 14 pounds make these plane beasts to land and require pretty high flight speeds.

flygilmore

Word!!! I had a Skyshark Eagle and though slightly smaller in its size, it had a Brillelli 46 on it which is lighter than many of the 50cc'ers out there. It was around 15lbs and I hated it's landing qualities! I am very experienced with performance aircraft but as TOM mentioned, the wing loading was just so high that certain aspects of flight were just not fun. Good luck!

frieshoo

My Feedback: (20)

I second the ZDZ 40 or BME 50 suggestion. If you can find a good used BME 44, that would work well.

I had the Pitts with a Fugi 43. It had lots of power in flight but it was a PITA to land. I traded it to a buddy, and he put a Saito 180 on it. It flew a lot better and was easier to land.

hanko

G-62 vs DL50. Thats like comparing Opra to Michele williams. When you drop the boat anchor, is it going to be easy to re adjust the CG? If its no problem Id go with the DL 50 or 55.

Whistling Death

Never heard of an RC Ignitions G-62 have you? Anyway guys that know what they are talking about already told him a DL-DA50 is too heavy.

larry@coyotenet

My Feedback: (21)

Shh! Quiet! Let them think that a DA 50 or a DL-50 is better than a G-62. That way when I blow them away with my p-47 with a G-62 and they think I've got a ZDZ-80 the look in their eyes when I tell them it's a G-62 makes it so worthwhile. More comments about that old, heavy, underpowered G-62 come from people who have never had one or never propped them correctly are printed here than you can shake a stick at. One more time! G-62's like to rev up! Prop the thing for at least 7,000 on the ground and more like 7200 to 7500 and Katie bar the door! We fly at 5,000 feet and prop our G-62's with something like a 20X10 or 12 for best performance. Granted this is for warbird fliers not 3d. No DA-50 Ive ever seen can fly a warbird like a G-62.

Larry

kmtranmd

My Feedback: (71)

I agree, there's no replacement for displacement.
G62 though is too heavy for 3d planes.

blhollo2

My Feedback: (278)

well, its going on a giant ulgy stick...not a war bird, besides i went with the DL-50 and it has out performed the g62 in every realm for me!

Whistling Death

It looks like you answered your own question if the DL - 50 has out performed the G62 in every realm.
I bet it won't out perform my RGIGN G-62. As a matter of fact I have one on a Giant Aeromaster and there are DA and DL 50's that can't hang with it. I am about to send Ralph another G-62 before he gives it up.

But it will be a great match for your Christian Eagle.

RACJ

Let me understand this. You buy a new DL50 for $300 and go fly,And engine itself weighs 47oz from factory. You buy a G-62 for $450 and pay shipping($$) to whoever and get electronic ign.($$$) it should have came with at that price,paylabor($$$) for install and then machine hub and lightening work($$$) and then get a decent muffler($$$) that isn't inefficient anchor, pay to ship back to you($$$) and yes 62cc will outrun 50cc on same plane but the engine itself STILL won't weigh 47oz. I'm really lost here.

Whistling Death

If you are talking to me, I got both of my G-62s off Ebay NIB for $265.00 each. I sent one of them to Ralph and he converted it for me for $75.00(that includes return shipping) and I put a B&B muffler on it for 39.00.
That is a total of $379.00 for a brand new converted and lightened G62 that will last for 10-20 years.

BTerry

My Feedback: (8)

Dl-55 weighs closer to 65 oz rtf after you add all the hardware, mount, muffler, etc (at least mine did).

Ralph's G62 lite weighs 72 oz rtf.

There is less of a weight difference than people think.

kmtranmd

My Feedback: (71)

Are you guys referring to Ralph Cunningham doing the G62 conversion for less than $100? If so, please provide his so I can lighten up my G62 too.

RACJ

No DLE55 involved here.Title says DL50 vs G-62.The man starting the thread has both and a decision to make. No standoff,mufflers,mounts,etc.etc.(varies too much with each plane) Just the engineL-50=47.5oz. no mods. Modify your G-62 till your in your grave and you aint gonna get 47.5oz. I'm not against G-62's,I have 3 of them including mag ign, 1 on RCexcell ign.+ tons of machine work and lightening, Yes one Cunningham g-62 and they ain't close in weight. Great engines all,but nowhere close to 47.5 Anybody got one at 50oz. and it still runs,I want to buy it. Man's trying to match one of 2 engines he already has to an airframe he already has. That's the Subject of the thread.

pauldo

I have had 2 Great Planes Pitts. The first one had a Super Tigre 4500 in it. This weighs about 2.5 Kg's with the engine mount, and will just manage a 20x8 prop. The plane was heavy and not pleasant to fly. In my Second Pitts, I installed a 3mm / TOC 53. This is the ideal motor for this plane. The motor is about 300 rpm down on the DL and JC 50's, but is is smoother, with its 3 bearing crank, and best of all, it fits completely in the cowl, without having the cylinder hanging out the bottom - Essencial for a plane like this. I just needed to take a couple of Milimeters off the front top edge of the head cooling fins. I understand, in the States, a hop up kit is available for this engine, which replaces the flat reed block, with a Pyrimid reed block, and this up's the power and throttle response on the motor. Without this mine will happily do vertical rolls, and is much lighter than the ST 4500 setup. It is a great combination. I know of 2 people at our club, who have now ordered these motors to fit into theirs. Landings are no problem. It floats in. Bouces like the real one unless you drag her in, nose high, with some power on

I have attached a pic of 2 x Pitts. Mine with the 3M 53, and the other with a Moki 210 (Not enough Power) Pity about my exhaust. A "Pitts" Muffler would have been better.

blhollo2

My Feedback: (278)

that is definatly what I'm asking! well put

Iflyglow

My Feedback: (79)

I second a Electronic ignition conversion by RC Ignitions, and use what you have all ready. Also, the G62 will be running years after the China junk has died.

pauldo

If the decision is just between the DL 50 and G62, there is no contest. It will have to be the DL 50. I have flown a Pitts with a heavy engine, and it was not nice. In fact I sold it. After flying one with a lighter setup, I was pleasantly suprised, and put together another one with the 3M 53. The airframe is not big enough for a G 62. The DL is the right weight, and has more than enough power. It will, however, hang out of the bottom of the cowl - Pity on a plane like this, especially when they don't make them anymore.

Eagleburger

My dl-50 on stock mufflers turns a vess23A @ 7450 and a mejzlik 23x8 @6900. How does the g62 compare?

1bruno

Well I have the DL 50 in a triplane and its a fantastic engine. I also have a Z 62 with a reduction gear and its even better. (planes 38 to 40+ LBs...) No substitiue when throwing a 33 or 34" prop. Now this is on a WWI bird but its still a far superior engine in my opinion, Plus sound like the rear thing, idol ar 500 rpm max at 2700 to 3000 very cool but heavy.

http://www.vogelsang-aeroscale.com/egpp.html
or
http://www.vogelsang-aeroscale.com/gearboxes.html
or
http://www.vogelsang-aeroscale.com/propellers.html

flygilmore

Mine (62) will do the Vess 23A @ 7800+ with under 2gal. through it

DL50 of mine will do the same prop @ 7250