lanier edge 540 & da85

[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.

[Wild Thang]

	Quote: Originally Posted by HTSkywalker
	Thanks SP, If I go 50cc I go DA but the problem is that our flying field is 4500 feet high and I am planning to put a smoke system as well. With the 85 I know the wingloading will go up but If I let go on hovering do you think the DA50 would be fine ? not much reviews and field feedbacks on the Hobbico CS-150, would it be a risk to try ? do they use same electronics as Hitec you think ? Can't someone tell the DA guys to bridge the gap between the 50/85/100/150 size !! Let back the slow Windows based 14MZ guys, 12Z 72Mhz all the way

Well what plane are you wanting to put a 50cc size? Like I said though, a DL-50 has a tiny bit more horsepower.

Hobbico CS-150's are exactly the same as he HS-5955s but with no program card. Exact same servo, one with no programing card. I dont use programable servos anyways. When you are in 100cc or more you mightbut i still think it's not a must to have.

Consider the DL-50, go on Youtube and watch some clips on them. I have not seen one unsatisfied coustmer. I'm going to order mine this weekend for my Richmodel (PAU) Extra 330L 30%.

[Wild Thang]

	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.

Bone Doc, I'm sorry dude, but I disagree. He is going from nitro to gas, and this plane is not going to fly like it was intended too. He needs to save that DA-85 for his next plane. Nothing wrong with it siting for a year or so. Not trying to doubt you, but it's way to big of an engine. Going to be like a P-51, way to nose heavy. Even if he did get the CG right, it will wing rock terribaly. It's going to be about 21 lbs or so. And with 1400 sq inches, give or take, thats going to be insane. I just think he should save that engine for another application.

[HTSkywalker]

Guys thanks all for your replies, maybe I was misunderstood. I have the plane but not decided on the engine yet, sounds it is too big for a 50 and too small for an 85. I have a tendency for the DA though and every other colleague have his negative comments about other engines (ZDZ 60, MVVS, 3W). I know that a 60 to 65 engine can be a perfect match but no DAs dudes for this size !!! beside if i get the DA50 it would always be a good investment for future models and please correct me if I am wrong but the 85 size range is not as popular in term of available models like the 50, 100 and 150 CC.
Again the moment I press "press here to finalize your order" I would feel released.

[Wild Thang]

It is the perfect size for a 50cc engine. DL-50s will hover a 17 lb airplane with extra pullout power. Take a look for yourself.

YouTube - DL 50 23x8 TBM 6800 17lb Yak 50cc

DL-50 is the perfect choice. DA-50 would be good too, but it's too expencive. Keep you DA-85 until you get a 33% plane.

A 30% plane is made for 50cc size engine. You see some 25%s with 50cc engines but they are waaay over powerd and fly like a rocket. Since you are at 4000 ft, I would reccoment a tuned pipe or a can. PM me if you need any help with that.

[HTSkywalker]

OK OK DA50 is the way to go for me, will work on some CF for the LG and the wing Tube to keep the weight low as well as moving some stuff to the front. Weight should be around the 16lbs barrier which should be within the DA50 envelop (14 to 18lbs as posted on chiefaircraft site).
YFZ what is your current situation ? are you flying with the 85 mounted ? any reports ?
SP I would be using the 5114 Futaba 14 Channels receiver so I won't need neither a matchbox nor a programmable servo

[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,