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Old 10-18-2011, 09:16 AM   #1
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Old 10-18-2011, 09:44 AM   #2
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Thumbs up Re: Chinese gas engines

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Old 10-18-2011, 09:50 AM   #3
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Gas Re: Chinese gas engines

I have a DL 100 in my 35% Katana - I see no difference comapred to a DA 100 - strong runner easy starting

I also have a DL30 in a Sukhoi - it is a bitch to start if it hasn't run in a while, but once started, subsequent starts are easy.

Mufflers are a bit loud
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Old 10-18-2011, 10:43 AM   #4
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Re: Chinese gas engines

I have been using a DL100 for about 3-4 years, I have flown that engine A LOT and pretty hard and still holding up.

My old DL still pulls like hell and I haven't had any kind of issues with it. I had only one dead stick about 2 years ago and it was because I ran out of fuel.

There are only a couple of things that I don't like. The original mufflers are junk. The DA mufflers fit perfectly and I have been using them for years now and the original spark plugs that come with the engine are useless. The plugs can be replaced in 10 seconds and it is an upgrade that it's going to cost you about $12. Not a biggy.

Other than that I have no complains. Although I am thinking about replacing my old DL.... the DA120 will look pretty good in my 35%


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Old 10-18-2011, 05:29 PM   #5
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Re: Chinese gas engines

Just be careful and pay attention to what you are ordering and getting. For example, a DLE 30 is only $201.99. BUT if you go down the page you will see...... This product is no longer available and has been replaced by a newer product. CLICK HERE TO VIEW THE NEW PRODUCT which is a RGC engine that is $ 219.00
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Old 10-18-2011, 06:17 PM   #6
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Re: Chinese gas engines

The way I see it you can get lucky and unlucky with all motors. I fly DL at the end of the day I personally think the more costly brands probably have a better QA process and machined tolerances so you stand less chance of getting a lemon and if you do they fix it. Now if price meant reliability (which I am not convinced it does having seen expensive motors have issues) and you pay extra for it, your motor only has to fail you once when you flying low and slow and you will have wished you had the more reliable motor at the higher price !! But this can happen with any power plant. DLE motors are decent at the price and parts are inexpensive and locally available. I say buy from someone that can support you if you have any issues, HK shipping kills the deal and if you have to get support Good Luck sending it back to HK. If you want some other less expensive but supported gas options try Raymond @ www.prcmodel.com he has some options. Let us know what you choose and how you make out.
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Old 10-18-2011, 07:01 PM   #7
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Re: Chinese gas engines

Well said Nev......
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Old 10-23-2011, 09:32 PM   #8
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Re: Chinese gas engines

Originally Posted by northernflyer View Post
Are they in the least bit reliable as my dead stick landing skills need a lot of improvement. Bill
If I may, I would like to de-rail this thread for a moment & please don't take this personally Northern Flyer, my comments here are intended to be general.

I find it hard to believe that guys would advance this far in the hobby and still not be competent & comfortable with landing a model with the engine dead!

Where were your instructors when this part of learning to fly should have been taught!

I haven't checked the MAAC wings program but is it not covered there? Part of the competancy test?

Do you not understand that an aircraft does not require a running engine to be controlled in the air?

Get youself a glider ( not electric ) and get out there & learn! Every landing is dead stick! It will teach you how to fly the wing, plan your menouvours while still leaving enough altitude to bring it to where you want it! It will teach you about aerodynamics like never before & will make you a far better powered pilot!

There is no good reason to fear silent flight!

I know a chap who at a fun fly, will take his plane up 300 ft, shut off the engine, calls "dead stick" then does an aerobatic routine on the way down with rolls, loops, hammerheads etc, ending with the model stopped at his feet!

I have seen him do it many times with several different models including some of mine!

I learned on a glider too & have never had to deal with that fear - quite liberating as engine "outs" are just part of flying!

Thanks for letting my vent on a subject that is like a burr in my sock!

May your landings be smooth as silk, with or without an engine!
Hang time does not apply to ceiling fans, light fixtures, overhead door tracks or basketball nets!
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Old 10-23-2011, 10:51 PM   #9
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Re: Chinese gas engines

I'll tell you what, in my experience (flying R/C for somewhere around 16 years, control line around 20 or so) I have found that most engine troubles come not from the engine, but from the fuel system. Whether it be just plain run out, a hole in a line, or improper setup or tuning, I bet fuel system problems are at least 90% of all engines failures/problems. In the world of modern gassers, dead or low ignition battery packs probably factor in pretty high as well. The number of engine failures caused by the engine itself are pretty low. Buy what you want, save a buck or two if you want, and just make sure you have a good setup, and are prepared.

Now, on another subject, Old Prairie raises a good point. Get a pure glider and learn how to judge a gliding approach. Then, get ahold of a cheap trainer (Eagle 2, LT-40, whatever) and PRACTICE intentional deadsticks on purpose from a bit of an altitude. Once you are comfortable, try it with other airplanes too. I have only ever had one airplane that I did not intentionally deadstick just to learn how the airplane would glide. That one airplane did it on its own one day.....because I didn't have a tight enough clamp on the fuel line from the tank to the carb, and the line pulled off the tank end during some manuevering. It was no sweat, just circle around, line up, and land.

I had another one with an LT-40 one day when I had a student on the buddy box. I took over too land, and as I was setting up the approach, I flew through a nice little thermal, so I circle in it, gained 200-300ft, and then gave control back to him and said "here, now you can practice a deadstick from a safe altitude"

Just for interest sake, the guy Old Prairie mentioned would do that deadstick aerobatic routine with a Kadet Seniorita, Sig Liberty Sport biplane, Eagle 2, and even a Great Planes Rapture once, among many others. That was pretty neat to see.
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Old 10-24-2011, 11:08 AM   #10
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Re: Chinese gas engines

If you are just puttering around the sky then I agree practice your landing approach from all over the sky so that when a dead stick happens you have a chance at gently planting your wheels on the ground .

But practicing for a dead stick landing from a low slow gravity defying manoeuvre ! I have been caught a few times with low slow inverted flight into a hover and bang ! No out, itís called bad luck it happens and can happen with any motor. Practicing high up the motor runs fine no matter what you throw at it, do the same thing low and slow and flyer beware - LOL, it should not happen but does, motor brand aside. I LOVE MY ELECTRIC
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