Whaleflyer

My Feedback: (6)

If this wasen't close enough we better call weights and measures!! LOL

mpascual

My Feedback: (1)

Time will say the true.
I think you're writing your thinking or what you hope or wishes. But the reallity doesn't lies.
See the picture above:
If you think the picture is false, you don't know me, i'm in honour and very well know in my country.
Engine with front washer and nuts (two nuts), spark plug, ignition complete, muffler with bolts and gasket, two security connectors holders, the inside spring for spark plug cap, and two small plastic bags, and one glassfiber lever for throttle lever with nut.
NOT ONLY less than 32oz , LESS THAN 30oz ( read my post). I've NEVER SAID 23 oz

According to Tower Hobbies, OS manual , and one OS120AX new from the box, on the same scale, with muffler :
Weight of engine: 22.82oz (647g) without muffler,extension or adaptor (the OS user manual says 20.88, but doesn't matter)
Weight of muffler: 7.074oz (219.2g) with 90° adapter installed
Weight of muffler: 7.907oz (245g) with extension installed
A simple calculation gives 22.82 + 7.074 = 29.89 MORE THAN 29.50 seen on the scale, and withouth the muffler extension OS supplies with the engine.
I don't kwnow why you use the word FOUL against my post. Maybe you're acting as a juzge , but without evidences.

About performance with supplied mufflers , tomorrow i will test and show some videos with rpm numbers .....

Once more thing :
bearings are not plastic made...

mpascual

My Feedback: (1)

sorry,,,

captinjohn

<hr />No need to say sorry, you do very well in getting the right data for people. Most people do not realize that you have been a engine man from a young man & still are. I myself really enjoy the videos of many engines you placed on YouTube. Thanks for doing this. Best Regards to another motor head!!! Capt,n

mpascual

My Feedback: (1)

Thanks for your words captinjohn.
English is not my language, and maybe my sentences are not well wrotten. I try to explain my best my experience with engines, but i'm not seller and i don't have stocks of DLE.
But some people talk and write about new engines ONLY from a picture. At least i write after having one unit and some test ... and after having repaired hundreds of RC model engines.
I'm not guilty for obtain some engines from manufacturers before they are on sale. Maybe manufacturers are confident with my work.

Regards

SPAIN: FIFA 2010 world championship WINNER .................[8D]

kmeyers

Whoa there partner, what are you talking about. The saving in fuel weight more than makes these engines work.

My experience with over 350 hours on my Zenoah 20ccei (I consider it a brick at 38ozs) in a .60 size plane, but, it is not.

In an 7-8 pound airplane the flying weight is bumped up only 5 ozs when you carry the same full throttle gas supply (12-15 minutes). Plus you can carry that fuel on the CG. My Zenoah has a steel muffler that weighs 6 ozs, and an ignition module that is filled with some sort of epoxy. Yet it flies better than any 60 or 90 FS glow I've flown.

Knock off 3 ozs for the aluminum muffler and and 2 ozs for a nice ignition and these really start to look good. The Zenoah is piston port, this thing has reeds (more power). A couple of blocks of wood and a little glue for reinforcements only add grams of weight. In exchange you get torque, sound, fuel economy and way cool factor.

If this engine meets its claims (which I have no doubt) it is going to come and smack you in the mouth. You could not be more misinformed.

albsurfer

You have a valid point about the difference in fuel weight. A 4S won't be much of a difference compared to gas in that respect. I have a few flying buddies who've traded 4S for gas in recent times. One only buys 20cc Zenoah for his .60 size planes for reliability, but does say that the smaller engines are bricks and I have flown one of his planes, so I can agree with his comment. His favourite Zenoah is the 38CC, flown in larger planes than .60. It does fly very well. I have corresponded with a couple of manufacturers who make light-weight .46-.90 class Extras & Edges. They emphatically said NOT to use any of the presently available 20CC -28CC gas engines. Why? Because A. the airframes will break because they are built light. B. The present gas engines will not perform as well as a good nitro engine in the smaller planes. C. The added weight into the aerobatic frames will take away from the airframe's design performance. D. The present warbirds in those classes are going to be NOSE HEAVY and will tend to tip over on landing (I have personally seen this). Now, that said, two of my flying buddies told me not to use Zenoahs in anything except an easy-flier that I basically want to fly standard field patterns with and no IMAC or 3D aerobatics with. I don't fly 3D, they were just warning me. Their advice at that point was to buy a 4S. Both of them have at least 25 years in the hobby apiece. So... I'm pretty sure that I can trust their advice, along with the others who've given up nitro and gone to gas. Smaller Zenoah engine weight vs lack of power in smaller planes is well documented in other forums on RCU, and a few other forums. I do hope that this DLE 20 CC performs as advertised. I will probably buy one and use it in a STANDARD airframe, or one that I have BEEFED up, UNLESS a GAS engine is SPECIFICALLY listed as an option on that kit (meaning it was DESIGNED for gas, also).

skillet92

Well I can say that I have a G-20 in a Seagull Yak and yes she is heavier than the glow setup that was in it, but it flys great! I do 3D and while this is not the best 3D plane because of the weight the engine has the power to do it. Just requires more concentration. Now take this DLE 20cc that is at least 10ozs lighter than the G-20 and looks to be stronger WOW!! I will have to try one just to see how it will perform. I have a few planes, warbirds as well, that I would love to have gas in...and this just may be the ticket!

Whistling Death

I have a G-20 in my GP RV-4. It is heavier than when the .90 OS 4s was in it but the wing loading is so light that still flies as light as it did before. I would love to have the DLE 20 in it to lighten it up and have amazing power.
I will be purchasing one as soon as they are available.

SkyPilot101

hen are they going to be a vailable???

w8ye

My Feedback: (16)

They will be in good circulation by the time your flying season is over.

They are talking Octoberish

littlera

What is the dimension from the center line to the top of the spark plug boot?

littlera

skillet92

Yeah that is a good question! What are the dimensions front to back and top to bottom????

albsurfer

skillet92, what's your AUW w/the G20 & what prop are you using to 3D? I am looking into the Seagull Edge 540 60 and put a 20CC in it. Thanks.

flyin two low

My Feedback: (44)

I am looking at the seagull yak 90 for this engine. does anyone have any comments on this. is this too much plane for the 20 cc engine? thanks DON

skillet92

I am at 10lbs and 10ozs. I have a pitts muffler and the original ignition. I also have the heavy original landing gear. I use a 16x6 for flying and that works great with that engine! Never had an issue. I could save some weight and get her closer to 10lbs if I made some changes but at the moment she flys and lands nicely! BTW I have the 90 size Seagull yak.

skillet92

But I can say that when this DLE 20 comes out it is lighter and stronger than the G-20. I will have to get one and put it in the Yak to see the difference!!!

mpascual

My Feedback: (1)

When i tested the Zenoah ZG20 EI for a spanish magazine, i got 7.700 rpm with a 17x8N APC nylon propeller. Also when i translated the user manual from Tony Clark to spanish language, the rpm data , says 7.700 rpm with APC 17x8N, when engine was finished the break-in.
Today with a SY 17x8N, a chinese propeller with same load than APC17x8N (narrow) , THIS BEAST gives 7.800 after warm-up and no needles adjust (on his first min. of running time) , AND 8.200 rpm , same result as Jody got , after 1 hour of break-in.
No tilt & dead issues

http://www.youtube.com/watch?v=bBwqL9AIJ1U

and the engine response after 1 hour :

http://www.youtube.com/watch?v=kkwr_jc9HVA

I LOVE THIS ENGINE .....

Regards ...

captinjohn

That DLE20 looks like a winner to me! Thanks for the Video. Capt,n

mfuess

I have about 250 flights on my Seagull YAK powered with a Zenoah G20. It flies great. About a month ago, I put a DLE-30 in my YAK. I have about 40 flights on it and it's awesome...

victorzamora

Has anyone noticed that Jody claims 8500RPM an an SY 16x8, and Zenoah claims 8900RPM on an APC 16x8.  According to Pe's chart, that means it's got 87% the power of the G26 (assuming that the SY and the APC have the same prop load).  That's pretty good.  I'm excited to get a DLE20....and a plane that requires one .

kochj

The engine looks like it does quite well for it's class.
300-400 RPMS Less, However is quite-a-bit difference when comparing props and 2-stroke glow/ to 2-stroke gasoline.
A 4-stroke shouldn't be compared to a 2-stoke in RPM figures.. quite different power.

Yep...32oz and NOT including the Muffler... It is a very doable weight.
The SAP 180 weighs in at 32oz INCLUDING THE muffler, but not the ignition and is a 30cc.
Igniton weigh around 200gr??

The issue is the NOise....for me....I like to be able to fly smaller planes with glow power
at the local soccer field..
THat stock muffler would get me thrown out of there soo quick.
That is a simple fix though
.

Do you have a Os 1.20 AX to weigh with the muffler?
What does the ignition weigh on the DLE 20???

It looks like a nice engine..But it isn't going to rewrite the book of Internal combustion Engines...

That is for the Americans to do....and the Chineese to copy, Later..
(Just kidding!)
Yet it will very popular for many.....and sell lots of them...be very successfull.

kochj

I was incorrect in my rpms.. on the 1.20 Ax...
IT is 9,800 RPM's APC 17x8 with a muffled pipe.

captinjohn

On page #6....post #130...I added a photo of how to mount a little bigger engine on a profile. Just more options for gas engines!!! Capt,n

karolh

I have a G20 from Ralph that weighs 34 ozs which includes a lightweight muffler and RC exl igniton that is an absolute blast in a 60 size Big Stick at approx. 9.0 lbs. I can't wait to get one of the DLE 20's which I really think is going to make some nitro engine manufacturers start shaking in their boots as from all indications it's going to be a gas bomb in a very small package.

Karol