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3W 75, 85 B2, or BME 102/105 for the H9 Sukhoi??

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3W 75, 85 B2, or BME 102/105 for the H9 Sukhoi??

Old 07-07-2003, 10:13 PM
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3Dn fool
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Default 3W 75, 85 B2, or BME 102/105 for the H9 Sukhoi??

Which of these 3 engines are the best for the H9 1/3 Sukhoi, the 3W 75, 85 B2, or the BME 102/105?
Old 07-07-2003, 10:39 PM
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Diablo-RCU
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Default 3W 75, 85 B2, or BME 102/105 for the H9 Sukhoi??

If you are thinking about twins, then you should also consider the DA-100 or 3W-106, which cost the same as the BME and will have more power. The downside is that they weigh more.

If you are thinking about singles, then you should consider the ZDZ-80, which costs about the same as the 3W-75 but has more power and weighs less.

Any of these motors will fly the plane well, but some will be more ballistic than others.
Old 07-08-2003, 12:06 AM
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TerryPhillips
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Default 3W 75, 85 B2, or BME 102/105 for the H9 Sukhoi??

5 months and 11 post , and you still haven't made up your mind? Is there something specific you want to know? It really boils down to:

Hard Facts:
Price: how much you're willing to pay.
Weight: how much you willing to put up with.
Availability: can you get it.

Relatively Subjective:
Power: how much you want. There are plenty of post 'round here on tach numbers.
Customer Service: Everyone has an opinion, but that's all based of someone's level of expectations in the first place...

Myself, I purchased a used BME102 for my H9 Sukhoi. It's my first GS and I wanted a twin for the cool factor and tend to root for the underdog. I would have been just as happy flying it with the ZDZ80 I'm sure and I think the DA is a great piece of work too. You cant go wrong with any of the choices. As Nike once said Just Do It

TGP
Old 07-08-2003, 02:52 AM
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Turbobruce
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Default DA!!!!!!!!

DA

Excellent power and looks. The motor is a thing of beauty just sitting on the bench and even performs better. The best customer service( I know I have dealt with 3W,BME and ZDZ) in the business in my opinion anyways. You really can't go wrong with any of the choices you have suggested but I would not do the single though. I had the ZDZ 80 and just did not like the powerband.
Old 07-08-2003, 01:26 PM
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3Dn fool
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Default 3W 75, 85 B2, or BME 102/105 for the H9 Sukhoi??

Terryphillips,

For the past few months I have been saving up for my engine and I almost have enough to buy it. I am leaning heavily tward the BME 105. By the way, I noticed that you are from the dallas area. What club are you a member of? I am a member of the North Dallas R/C Club.
Old 07-08-2003, 05:51 PM
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Default 3W 75, 85 B2, or BME 102/105 for the H9 Sukhoi??

I actually live in Las Colinas and fly my electric stuff at 635 and Luna (sw corner). If it has landing gear, I fly at Renner & 190 (NE corner). The NDRC field just isn't real convenient for me. Sure wish the Northlake site was still open, it's 3 miles away

Good luck with your motor selection!

TGP
Old 07-09-2003, 10:50 AM
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Default 3W 75, 85 B2, or BME 102/105 for the H9 Sukhoi??

3Dn. . the BME 110 will be out in a few weeks. . forget the competition. . they are 2 lbs heavier and make no more power, and a ZDZ80 can't even think of getting close.

If you get a 105 right now, btw, you will be able to upgrade to a 110 by merely changing out the cylinders and pistons, and getting new mufflers. Kind of makes it a simple choice, doesn't it?
Old 07-09-2003, 12:37 PM
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rmh
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Default 3W 75, 85 B2, or BME 102/105 for the H9 Sukhoi??

we will certainly look forward to seeing how these new engines perform - seriously.
The choices are not all that simple tho -
I don't think all of the engine choices were in the same price range -for one .
comparing 100+cc with a 75cc? - hmmm-
Of the choices ASKED about - the 75 --on a good tuned system , would be a lees expensive -andwith some attention to weight - a pretty good choice.
HOWEVER---
ANY engine weighing 4 lbs -in the Sukhoi -- will need ballast up front , unless the servos are all relocated and or/ the belly of the model is lightened .
I have built these -with singles/ twins (DA ) and helped a friend figure how to redohis with a BME twin -to get it to balance -without ballast.
So far the easiest power setup I have seen -on this model - is a 100 cc twin weighing over 5 lbs -simply because of balancerequirements.
note: I did not mention relative power of these or other engines
Old 07-09-2003, 03:26 PM
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Default 3W 75, 85 B2, or BME 102/105 for the H9 Sukhoi??

You will not have unlimited performance with an 80 or less. I just flew a buddies we test hopped this past weekend with the BME 102. It ran great and had good vertical. Highly recommend the BME 102/105 or the DA-100. Oh! with the BME-102 it weighed 26#. All standard stuff and no smoke.
Old 07-09-2003, 04:06 PM
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Default 3W 75, 85 B2, or BME 102/105 for the H9 Sukhoi??

Your opinion is understood - however -you can get unlimited performance with an 80 -
been there -
choosing a mismatched in cowl muffler may kill the 80 selected - but with a decent exhaust setup -an 80 OR the 75 asked about - will do nicely .
Budget is important to some and the 75 and a good exhaust may better fit the customers wallet .
Also -- easier on the ears !
Old 07-09-2003, 04:39 PM
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Default 3W 75, 85 B2, or BME 102/105 for the H9 Sukhoi??

Do you know of a good exhaust system for the 3W-75?
Old 07-09-2003, 05:41 PM
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Default 3W 75, 85 B2, or BME 102/105 for the H9 Sukhoi??

You can certainly get unlimited performance with a ZDZ80 on this bird; a buddy's has awesome vertical with a standard muffler and a Menz 26x10 - vertical is similar to another one I saw fly with a BME 102 (not sure which prop on that one). I imagine with a tuned system the ZDZ80 would do even better.

I know it wasn't one of the choices mentioned but it still is a great combo for this plane.
Old 07-09-2003, 06:44 PM
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Default 3W 75, 85 B2, or BME 102/105 for the H9 Sukhoi??

Hi. Starfighter here. I have this acft. flying w/3W-75. As Dick Hansen said, this combo WORKS. The plane has more vertical perf. than I can handle(it will climb OOS @1/2 throttle). I did have to add ballast to the nose, approx. 25oz, and the acft. still came in @ approx 25.6lbs. I really like the perf. of the 3W-have no experience w/ZDZ. By the way, check the warranty disclaimer on this acft. I believe it indicates the Warranty is VOID if U install any engine larger than 80cc.
Old 07-09-2003, 07:28 PM
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Default 3W 75, 85 B2, or BME 102/105 for the H9 Sukhoi??

I have a buddy that got an aircraft replaced and he had a BME102 on it, so the warranty is a non issue.

I have the zdz80 on mine, its under 25lbs, and performance is very good. I would like to see that 75 powered one go, Being heavier with a smaller motor its probably less performance than mine. Have any video? It may have more vertical than you can handle, but wait until you want to do 3D.

Here is a video of mine with the zdz80 on a pro zinger 26x10, I have since replaced the prop with a Menz S26x10 and performance is WAY up.

BUT, IMO, I am still putting a DA100 on it for more power.

Super sukhoi vid
Old 07-09-2003, 08:26 PM
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Default 3W 75, 85 B2, or BME 102/105 for the H9 Sukhoi??

We fly-and oberve the piped 80ZDZ and the DA100's side by side -there are a few of them here -
There is more poop on DA100 -and the model really works!
as for a direct power comparison - that is tough - I can tell the DA setup is stronger -but IF you don't know the engine setup -and are watching as simply an observer --you can't really see any noticable difference.
Old 07-09-2003, 11:49 PM
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Default 3W 75, 85 B2, or BME 102/105 for the H9 Sukhoi??

You guys concerned about balancing the H9 Sukoi with a 4lb engine should look at our web sight www.bmeengine.com under the gallery section. Bob Knudson did it without adding ballast weight at 24lbs with a BME105. Engine fits completely inside the cowl to. Its the best looking Sukoi I have seen.



Keith
BME
Old 07-10-2003, 01:44 AM
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Default 3W 75, 85 B2, or BME 102/105 for the H9 Sukhoi??

di he move the wing tube? I know some guys did that.
we simply relocated servos and took of all the "fat" from the belly -
Most guys just filler er up -then --hope -
Old 07-10-2003, 01:49 AM
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Default 3W 75, 85 B2, or BME 102/105 for the H9 Sukhoi??

should have looked first - he did all of the good stuff -
some folks actually shifted the wing tube - aft
Old 07-10-2003, 01:50 AM
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Default Too light??? no such thing!!!

I just shifted the entire battery/servo tray in my 2.6m Fiberclassics Extra BACK 15". .from the wing spar area to the back of the cockpit. . and the plane is STILL about 3 ounces too light on the tailpost. That's a weight shift of about 26-28 ounces a distance of 15" .. nothing in front of the wing spars except for the engine, canisters, aluminum spinner and CF prop and the 32 ounce gas tank is on the belly right beneath CG. Kind of takes that theory of BME engines being "too light" and shoots it right between the eyes, since I can't move anything farther aft.

Guess I'll have to install that CF spinner now, take a few ounces off the nose.
Old 07-10-2003, 02:06 AM
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Default 3W 75, 85 B2, or BME 102/105 for the H9 Sukhoi??

check the cowl - I think you left a beer in there---
Old 07-10-2003, 02:10 AM
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Default 3W 75, 85 B2, or BME 102/105 for the H9 Sukhoi??

Nope, sorry, just a couple of pieces of 1/16th balsa ducting from the cowl inlets to the cylinders. . you know how much extra weight that adds. . . . its a wonder ALL my planes aren't nose heavy. . .
Old 07-18-2003, 12:58 AM
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Default 3W 75, 85 B2, or BME 102/105 for the H9 Sukhoi??

maby they are and u just dont know it.............
Old 07-18-2003, 02:12 AM
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Kris^
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Default 3W 75, 85 B2, or BME 102/105 for the H9 Sukhoi??

hmmm. . Lemme check on that. . I'll get back to you when the 40% gets finished.
Old 08-07-2003, 05:37 PM
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Default hanger9 sukhoi

i just got mine and im thinking about the zenoah 80 or the first place 5.8 what do you think,,, is anyone runing these???
Old 08-07-2003, 05:46 PM
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Default 3W 75, 85 B2, or BME 102/105 for the H9 Sukhoi??

Those are not enough power for the H9 Sukhoi IMO

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