lanier edge 540 & da85

[Wild Thang]

You might not need to even put CF on the plane at all. I would just buy the airframe first and add up the total weight of all the parts. Then get the weight of every thing you are going to put inside the bird. Add er all up and find out what you get.

But HTS, would you rather pay $600 bucks for a DA-50, or $400 bucks for a motor just as good, the DL-50. I was the same way too, I thought it would be cheap. Boy since I seen them run and fly at the feild, I was amazed. A guy has a 87" yak at the feild with one. Unlimited vertical on it. He posted about the cg on this thread, and his name is FL Big Mac. Take a look at his avatar, that is the yak with the DL-50.

[Fl Big Mac]

	Quote: Originally Posted by BoneDoc
	I think I'm qualified to talk about LIGHT. Please refer to my 19.2 lbs Dalton Aviation 35% Extra 260 Dalton Aviation 35% Extra 260 at 19.2 lbs Having said that, the man has bought BOTH a DA85, and the Lanier Edge, so if you give him an advice, please tailor it to that condition. The plane will fly fine on a DA85. The extra one pound of nose weight (functional nose weight in this case) will make balancing the plane much much easier. This baby will rocket out of a hover, and as long as he exercise THROTTLE MANAGEMENT, the plane will be fine. This plane has a 1.5" Wing tube, and dual aileron setup. It'll handle the abuse just fine as long as he reinforces the firewall. To call this plane a 50cc is a misnomer. It's more like a 60cc-75cc size (just like the EF Yak). I've had my plane next to a SD Model Yak, and this plane dwarfs it. Wingloading in the teens are only for profiles and 60-120 size glow.

SP33s, I agree with you.

First of all he is open to a change. Even if he is not there are others that can benefit from this discussion. My main point is before anyone buys a plane engine combo there is some math to be done. What I said was do the math and see what you got. The extra one pound of nose weight will make balancing the plane easier, yes and it will make it a brick. This plane at 87" and 1400 square or so is just a 50CC: no misnomer as you put it. At 17 or 18 pounds the wing loading is about 30 oz per square foot. At this wing loading a weight savings of one pound is huge. When you have a plane with an over sized engine it is difficult to control. You are swinging a larger prop at lower rpm. This gives you less and slower air over your control surfaces making the plane harder to control in 3D. When you throttle up it will be harder to get smaller correction that is needed to maintain a smooth hover.

Skywalker, please forgive me if 3D is not your cup of tea. At 18 pounds this plane will fly. You will need to land it a little faster, but you will be able to handle it. If all you want to do is fly regular sport stuff, you will be fine, just don't expect it to be a floater.

As far as the DL 50: it is a great engine. I have had no problems with mine and it has as much power if not more than any of the DA's at the field. If all things are equal, why not buy on price?

[BoneDoc]

HTS,

Since you haven't gotten the DA85, then just stick with the 50, stock muffler, make your own pull pull, and move EVERYTHING to the front. My throttle servo was right next to the motor box for example.

[HTSkywalker]

BoneDoc, I am decided on the 50 and I believe a DA would be a better investment then a DL (SP & BigMac I know you may both disagree). Let us face it those engines have been in the market for less then 1 year, I surely agree on all the good reports all over about them but I think it is too short of a period to judge them especially for the build materials and electronic boards (how long will they last). Many colleagues have their DAs for years and with very high reliability in term of components.
Would a smoke system be out of the question with a 50cc mounted ?
SP do you think a tuned pipe or a can would compensate for the power on high attitude ? any recommendations (for the DA50) ?

[Black Bird]

For anyone esle that is reading this thread and have not decided on a engine. I just would like to pop n and add my two cents. I would be careful not to listen to youngsters when it comes to aerodynamic advise. The higher the wing loading the less wing rock you will have. Increasing the wing loading by two ounces per square feet have small affect on stall speed. At the altitude stated, exspect a 20 percent decrease in overall performance. You will need something bigger than a 50cc.

[skhalil]

HTS,

BRO I Strongly suggest the DA-85. No need to mention the altitude factor especially as you know that we are @ 4000 ft height in our AMAZ RC club www.amazrc.com
Better to reinforce the firewall with some triangles and carbon fiber.
Cheers,

[BoneDoc]

lol, I wasn't going to get into a shouting match with them so I was just going to ditch this thread altogether. I still firmly believe that this is a 60cc plane, like the EF Yak is. With that in mind, the DA85 is still a natural choice. Once you've learned and fully abuse this airframe, move up into something more expensive. Stay cheap on the airframe upgrades and use it for what it's worth: a gas engine trainer.

If what you have is the DA50 and you're looking for an airframe, then I'd highly consider the 3DHobbyShop 85" Katana. it is easily one of the best 50cc offering out there right now, coming in at less than 15 lbs with gas built STOCK. It also can withstand a lot of abuse as my 2nd video shows

3DHobbyshop.com 85" Katana VIDEO

But since you've already have that airframe (and I have HAD the airframe myself), my advice was tailored to that need. You can ignore anyone who told you to ditch the airframe for something else. It' s not a bad airframe at all. It's big and it flies quite light even at 17.5 lbs. You'll need something like a 20% rudder-aileron mix and around 10% rudder to elevator mix. Other than that, it harriers great and it has a ton of rudder surfaces. My only reinforcement advice remains, reinforce the firewall.

One more thing that will make assembly easier is to swap out those wing bolts with some thumb screws (like the one Hangar 9 makes for their ARFs-- an Extra 260 or Showtime 90 wing bolts will be a perfect fit).

HTH,
Josh

[HTSkywalker]

How about the Evolution 58 engine, anyone some experience ? it maybe a middle solution between the DA50 and 85.

[HTSkywalker]

By the way, was not able to find the Evolution website, no mention for the EVO58 GXII Horsepower on Chiefaircraft site.

[BoneDoc]

Go to Horizon Hobby for the info.

The problem wiht Evo is what's your next airplane once this one is toast? For that reason a DA85 will be a more versatile option. Not to mention, DAs in general have good resale value.

[HTSkywalker]

Horizon is mentioning 8.5 HP i believe they meant 5.8 and with minor extra weight compared to the 85, what is thr reputation for the EVO engines ?

[HTSkywalker]

BoneDoc, you had a good experience with DA50 installed. will do the same, will get the DA50 and no matter what it the DA50 would always be a good value (may get the 85" Katana). I f i go up, i go 100 or 150cc size machines, this Hybrid size caused me enough headache.

[skhalil]

Skywalker,
If time is not essential, just wait for two weeks, a friend of mine will be testing his new DA-85 on that same bird.

[skhalil]

HTS,
I asked Zulg a fellow pilot facing the same problem in the following link to join us. You may help him guys.

http://www.flyinggiants.com/forums/f...tml#post362546

[Black Bird]

From what I have read, I am particularly fond of the ZDZ 80. I dislike the carb configuration on the super. A friend at the club has a 3w80. He loves the performance, hates the vibration. Anything less than 75cc at your altitude with this aircraft will be a dissappointment.