50cc gas engine

[rcign]

There are about 10,000 of those "substantial design shortcomings" flying around as DA 50s...
Wow, just imagine how good they COULD be if they let you in on the design process...

[KrisW]

	Quote: Originally Posted by rcign
	There are about 10,000 of those "substantial design shortcomings" flying around as DA 50s... Wow, just imagine how good they COULD be if they let you in on the design process...

Yeah. . they would have worked out all the problems BEFORE they released the engine. Glad to see that DL is at least copying the upgraded version that does not stumble and die when taxiing. The power output is still kind of mediocre, though. . just look at the weedie conversion Taurus 52. Actually out powers the DL/DA design, and it's "only" a weedie. Amazing what you can do with a weedie conversion, isn't it?

[Wild Thang]

Why does every one dump on a DL-50 lol...

[KrisW]

	Quote: Originally Posted by Sp33d
	Why does every one dump on a DL-50 lol...

I wouldn't call it dumping, so much as people making sure the DL owners know where it's origins are. There is nothing wrong witht he DL-50, per se, but there are sensitivities people have when the mighty DA brand gets copied in some way.

This thread started out looking for advice for building ones own "weedie conversion". to that I say. . GO FOR IT!!!! You can do no worse than many "Name Brand (DA, 3W, BME, Brison, ZDZ, DL, XYZ, RV, Taurus, etc.) engine companies who have had WAY too many of their engines develop problems after release to the public, or never be thoroughly thought out and fixed prior to sales. Notice I am not calling out one particular company . .they are ALL guilty. . yet people swear up and down about how great their (pick one) is, and how lousy the other brands are.

There are not too many people with the stones, or talent, to design and build their own 2-stroke aircraft engines, much less market them successfully. But, from my own personal experience, and following my own preferences, this is what I want to see in an engine (and what I am designing into MINE. . ):

1) Double end supported crankshafts. . NO cantilever designs. Cantilever designs vibrate more, no matter what you do, and the crankshafts flex more under load.

2) Dependable and well thought out intake systems. Even a piston ported Weedie has a well thought out, and extremely reliable, intake system. . not so for many of the upper end custom built engines that suffer from poor reed sizing and designs.

3) Light weight. . lighter is better. Most of the "Name Brand" engiens are a good 10-20% heavier than they should be. There's really no excuse for it, either.

4) Dead Nuts dependable ignition systems. It's hard to beat a magneto for dependability, but current Chinese offerings (Such as the ignition from RCCDI) are extremely reliable, well proven, and 1/4 the cost of those high end "Name Brand" engine companies ignitions.

5) Decent power per CC. . to this end the High End Mega$$$$$$ engines prove no better than piston ported weedies in the smaller (under 70cc) sizes, in most cases. There's only so much power per CC an engine will make, and the Weedies and Chainsaw engines are made to do that, and do it utterly dependably, for 2000 hours of operation under extreme conditions. If you can;t match top end numbers with a name brand (for bragging rights) make it BIGGER and nearly the same weight. more power for the same weight is the name of the game, and cubic inches will always rule over mega-rpm blasts.

You can plunk down your money for a high dollar 3W, DA, ZDZ, or whatever. . buy a clone from China, get a weedie conversion, or build your own. When it's inside the cowl, if the power is the same, the dependably good, and it starts easily, no matter what engine brand you are using, the plane certainly does not care.

I say, build your own. . . who needs decals on their cowls??

[mandtra]

To the DL hater. East rc is slightly higher in price than DLUSA , and as far as being able to get one shipped to my door for $ 300 I would like to know where????????
Import products help keep prices down, It's called free enterprise..

Any yes I have a DA also , There's more than one point to consider ,the best quality and the best value for your money

Some people have an unlimited supply of money, for those of you buy what you want. . I get tired of people wineing about others using cheaper rc stuff. but the people with sponsors rarely pay for the`stuff,they use, heck , if they give it to me for free i would use it and swear by it too.

[KrisW]

	Quote: Originally Posted by mandtra
	To the DL hater. East rc is slightly higher in price than DLUSA , and as far as being able to get one shipped to my door for $ 300 I would like to know where???????? Import products help keep prices down, It's called free enterprise.. Any yes I have a DA also , There's more than one point to consider ,the best quality and the best value for your money Some people have an unlimited supply of money, for those of you buy what you want. . I get tired of people wineing about others using cheaper rc stuff. but the people with sponsors rarely pay for the`stuff,they use, heck , if they give it to me for free i would use it and swear by it too.

Nice troll shot. . no signature. . first post on the forums. . .very nice. . but I'll respond anyway. . I can order the DL-50. . to my door, for less than $275, plus shipping .. not that I would. . but I can.

It's amazing how if someone cold bloodedly examines the pros, cons, advantages and shortcomings of what is available on the market. . when one product comes up short and is questionable, they are called a hater of that product.

Absolutely amazing. . .may as well say people are SV, XY, 3MM, Thunder Tiger, and GR Pro haters as well. . they are all the same basic engines anyway. Let's label everyone who is against a certain product, for extremely logical and well thought out reasons. . as a hater.

That would solve all the problems, right?

As for keeping prices lower. . .the American products have not raised their prices in about 5 years or so. They have their margin, and that is what they sell on. Basic business 101. . . take away the profit, and you take away all the genius that provided the product in the first place, the product goes away, and what takes it's place is usually much poorer quality product. All for the least amount of money the consumer wants to pay, to whomever they will pay it, because they are too cheap to buy the best products on the market.

I'd really hate to see what would happen to our engines if DA and 3W closed shop. No one to copy. . no one to lead the way. . no one to provide the best products available, so that people would know when they are getting questionable merchandise. We are seeing the first glimmering of this problem with BME shutting down. Who is next?

[KIM]

enjoyed the read on your site.from go karting to rc, still like 2 cycles lol

[KrisW]

	Quote: Originally Posted by KIM
	enjoyed the read on your site.from go karting to rc, still like 2 cycles lol

Thanks, Kim. There's always more coming, and room for improvement.