BME 110 Extreme or DA-150??

[Hanapi]

I am stuck with this decision.
I have a 37% Ultimate that needs an Engine.
I can put either a DA-150 (which might be overkill) or a BME-110 Extreme.
The difference is the BME weighs 3.9Lbs produces 10.5Hp where the DA 150 weighs 7.96 Lbs and produces 16HP.
My problem is whether the loss of +/- 5.5 Hp is compensated with the weight being half.
Just don't know..Help please.

[WOODisGOOD]

One thing you need to figure out is wether or not you can use the lighter engine without haveing to add weight to get the cg right. Also keep in mind that biplanes will have alot more drag than a mono plane. What is the projected weight of the plane and what kit?

[Hanapi]

	Quote: Originally Posted by WOODisGOOD
	One thing you need to figure out is wether or not you can use the lighter engine without haveing to add weight to get the cg right. Also keep in mind that biplanes will have alot more drag than a mono plane. What is the projected weight of the plane and what kit?

It comes out to 26-27 Lbs with the BME 110.
It is the BME 37% Ultimate ARF.

[DKjens]

I don't really see how you can be in any doubt here. The manuel shows the 110, the video shows the 110, it appears to balance out with the 110, it's a small plane with a relative small weight. Stuffing a DA150 in it would only make sense if you're flying at +6000'.

[Hanapi]

	Quote: Originally Posted by DKjens
	I don't really see how you can be in any doubt here. The manuel shows the 110, the video shows the 110, it appears to balance out with the 110, it's a small plane with a relative small weight. Stuffing a DA150 in it would only make sense if you're flying at +6000'.

Because I heard that the BME 110 has good power more at the top end.
I already have a DA 150 and know the engine.
I don't know a BME 110.
Capich?

[DKjens]

Why get that plane then, if you already have a DA150? The plane you are enquiring about is a 100cc class plane, should perform fine with a 100cc class engine, unless flying at great altitude as mentioned. If you have the DA150 already and want to use that, get a 150cc class plane, is my advice.

[Hanapi]

	Quote: Originally Posted by DKjens
	Why get that plane then, if you already have a DA150? The plane you are enquiring about is a 100cc class plane, should perform fine with a 100cc class engine, unless flying at great altitude as mentioned. If you have the DA150 already and want to use that, get a 150cc class plane, is my advice.

Thank you so much for your help.
I have the DA 150 in a 40% Edge.
You just helped me decide. The DA 150 in that plane would be awesome.
Thank you.

[KrisW]

Hanapi, the BME Ultimate is designed around the BME110 and standard mufflers. They usualy come in at about 27 lbs. I built one recently for a local flyer, using standard stuff all through the plane, nothing fancy, nothing super lightweight. The BME110, with a 28-10 Mejzlik, literally flew the wings off the plane. The plane is set up to balance perfectly with the BME on the nose. Adding 5+ lbs up front is a NO NO!!!!!

With the batteries in the designated places, and a 32 ounce tank (dry), the plane balanced perfectly as set up in the building book from BME Aircraft. I can give you some ideas and hints on the build up if you like, but when the plane pulls ouf of a hover at 5/8 throttle, and cruises around at 1/4-1/3 power all day long, has stupid vertical and flies better withotu the added nose weight, the only LOGICAL choice is the BME110.

IMO. . with a DA150 on the nose, you will overstress the airframe, and inside 10 flights have a bundle of scraps to take home. Stick with the BME110. It's really the best choice for the plane.

As for the "RUMOR" that the BME110 only runs best at top end. . Utter B***SH*T! The midrange response is phenomenal with this engine, and I'll put it up against any other flat twin out there for mid-range smoothness and throttle response. I've been flying the BME twins (and every other make of engine out there) for a long time. Remember, you have to power the plane for it's size and keep it as light as possible. An airplane is a "Total Package", not a missile with a huge engine and prop on one end. Occasionally they have to turn, too.

BTW, prop clearance with anything over about 28" is pretty marginal. With a 28" prop you only have 3/4" of clarance. Another thing to consider.

[Hanapi]

	Quote: Originally Posted by KrisW
	Hanapi, the BME Ultimate is designed aroudn the BME110 and standard mufflers. They usualy dome in at about 27.5-28 lbs. I built one recently for a local flyer, using standard stuff all throught he plane, nothing fancy, nothing super lightweight. The BME110, with a 28-10 Mejzlik, literally flew the wings off the plane. The plane is set up to balance perfectly with the BME on the nose. Adding 5+ lbs up front is a NO NO!!!!! With the batteries in the designated places, and a 32 ounce tank (dry), the plane balanced perfectly as set up in the building book from BME aircreaft. I can give you some ideas and hints on the build up if you like, but whent he plane pulls ouf of a hover at 5/8 throttle, and cruises around at 1/4-1/3 power all day long, has stupid vertical and flies better withotu the added nose weight, the only LOGICAL choice is the BME110. IMO. . with a DA150 on the nose, you will overstress the airframe, and inside 10 flights have a bundle of scraps to take home. Stick with the BME110. It's really the best choice for the plane.

Thanks Kris,
This is a great reply to my post.
I had already been leaning not to install a DA 150 becuase of the weight.
Thanks again.
JR

[Spectre1]

Hanapi one more Vote here to install the BME 110. light and powerfull.
We have a guy that flys one up here in Fla.... and loves it!

TTL

Spectre1

[Hanapi]

	Quote: Originally Posted by Spectre1
	Hanapi one more Vote here to install the BME 110. light and powerfull. We have a guy that flys one up here in Fla.... and loves it! TTL Spectre1

Thanks Greg,
I did get the BME 110cc.
Have fun in Memphis.

[toddblose]

Hanapi,
I flew the prototype BME Ultimate with the 110 at 28lbs. so you made the right choice. after you get through break in, go with the Mejzlik 28 X 10 perfect combo

[Hanapi]

	Quote: Originally Posted by toddblose
	Hanapi, I flew the prototype BME Ultimate with the 110 at 28lbs. so you made the right choice. after you get through break in, go with the Mejzlik 28 X 10 perfect combo

Will do...thanks a bunch..