Hey gang,
My Edge seems just a little underpowered with the OS 1.6FX. I ran a few gallons through it, but it still seems like it could use a little more umph. I was considering the 3W-24i but at 500 bucks it seems like too much money. (I'd rather work on another 1/3 scale).
Does anyone have any suggestions on a good replacement? I did have to add quite a bit of lead to the nose to get it to balance so I'm not all that worried about balancing. I just thought this plane was too small for gas.
RickP

What edge is it? A good 50 would work. IMO. BME, DA ect.

HTH

Joe

Hi! I have a 3W24 and need much hours of run maybe10 to 12 for broke and this is not a choice! i suggest some like FPE2.4 with ch ig.,ZDZ40,DA50,zdz 50 choose the more lite. up to you.
how much rpm you get in the 3W24 and what prop?

Hi All,
I think a 50 may be too large. This is a 1/4 scale Lanier Edge. I guess the only other choice might be Moki 1.8?
RickP

The 1.6 FX and Moki 1.8 is very similar in power better Moki 2.1.

The Moki 180 will cost you almost as much as the gasser--and it will suck down the glow fuel really fast.

Maybe try an MDS 2.18?? I don't know how they run- but it's a whole lot cheaper than the Moki. As long as you don't mind feeding the big glow engines.

I've had a few MDS 1.48 engines. Still got one. Put a Perry carb on them and they will pull a house down. If the 2.18 is comparitively powerful-- it should be plenty of engine for your plane.

Stay with the 1.60 FX. It has plenty of power to do any of the 3D tricks. Use a good 18x6 prop and if using the brison muffler cut the rolled tips off. I have a 1.60 on my H9 edge and it have unlimited vertical. I use the 18x6W APC which pulls like a tractor out of a hover. Most of all keep this plane light. Do not exceed 13 pounds in weight.

sounds like a good home for a super tigre 3000.

Humm,
Maybe I need to lean it out some more, It's just that it kind of hovers around 3/4 and the pull out seems marginal and sometimes falls out to the side without climbing at all and I exit into a really cool knife edge pass. If it just had a little more it might be really good. The plane could also be heavy, I'll put it on the scale to check.
Thanks
RickP

If you are using a 18x6 what kind of rpms are you acheving? I usually get around 9000 to 9200 richened for flight on the APC 18x6W. My plane is 12.25 pounds and hovers around half throttle. Pull out is not a rocket using a 6 pitch but it is steady and positive plenty for good 3D. I find I have to usually pay good attention to the throttle because it will easily start climbing in a torque roll even at half throttle.

Rick that 3w 24 will really be a disappointment, I would go with the moki 1.8 or a saito 1.8 for 3d

Any gasser will be to heavy for that wing. My H9 edge is like on the border line with the ZDZ 40. Plenty of pure brute power but i have a larger wing than the lanier edge.

You also might try using a smaller prop like a wood menz 17" prop
I believe that 18x6 Keeps that engine a little bit off its power-band in a hover.

I guess the only other choice would be to get your giant scale in the air.

Hey Sal and Sport10,
Thanks for the info. Sal, I know the 1/3 scale is on the way, just this little thing called work keeps annoying me... I suppose I should get a tach because I don't know what it's turning with the 18-6. Smaller prop is a no brainer to try - so I'll try to get one for this weekend. I suppose I'll stay focused on building and leave the Edge alone. I'll keep fooling with the 1.6. I'll see you on Sunday
RickP

I agree with the above post, 160 and Moki 180 are about the same. A 2.4 will have possibly more power (maybe) and be much heavier. I run the 160 on a Perry Pump and a Mezjlik 18x8 and it has pulled a 14lb World Extra up unlimited. A 19x6 should be the prop with the best thrust and should turn at about 8400 rpm. 18x6 is slightly under propped for 3D. Not saying the 18x6 is bad but when I ran one it seemed to make a lot of noise and not go anywhere. 9000+ rpm is more fitting for pattern type flying imho.
Also, the Moki and OS I have both run on 16 oz tanks and get 10-12 min on both, very efficient.

Rick P,

I have an FPE 2.4 in the same model and I still had to add nose weight with the servos in the tail, a guy in my club has a Fox 2.4 in his. My FPE with CH ignition is swinging a Zinger 20x8 at 7300 rpm and the model weighs 13 lbs dry. If you still end up adding nose weight with a gasser, I guess the weight gain of the gasser is a "Non-Issue". What does your's weigh with the 1.6?


BTW, Mine's still noseheavy as I'm still getting used to the plane. It could be closer to 12.5lbs when I move CG aft.


JJ

I know its expensive, but I have a YS 1.40 DZ, and that thing pulls like noneother!!! Spins props at my altitude (6000 Ft) faster than moki 1.80s at sea level! THe only downside is the fuel cost.

Adam

The rpm's are higher at 6000 than at sea level, the air is thinner and there is less load on the prop. I live at 1400' and my engines will run faster at home than at the field at 400'. But yeah, the YS kicks @$$.
JJ, I wouldn't think of adding weight without it first being a last resort like, my servos were all next to the firewall. Get 'em out of the tail if your CG is too aft! Engine weight is always an issue unless you absolutely cannot balance without lead. A G62 is going in my Lanier Cap which usually balances with this engine fine. However, mine is modified and will be about 13 lbs with an OS 160. I might try it just to see what fun-fly wing loading is like on this bird!

Yeah, but we usually turn slower rpms up here because there isnt as much air for our engines. We run a lot leaner because of that up here, and cars lose about 15-20% of power, same as model airplane engines. A lot of full scale airplanes are turbo charged to make up for that. But you are right, there is less air for the prop to load, but there is also less power in our engines. We lose out in two ways but i do get around 18 lbs of thrust with a pro zinger 20x6.

Adam

JJ,
I'm not sure what it weighs - still have to do that. It does seem heavier then my Giles wich is the same size though. It took quite a bit of lead in the nose, I'm almost embarrased to admit. I could probably put another engine up there
I left mine tail heavy cause I couldn't stand to add any more nose weight, but I love the way it flys that way. Try it - I'm sure you'll like it too. Sequences are fine, but 3D seems underpowered. I did really lean it out and got some more power out of it. I guess I'll try the 19-6 and see how that does.
RickP