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Old 11-17-2002 | 02:48 PM
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From: quincy, IL
Default Su-do-khoi .60 What engine do you use?

Hello all,
I'm building a Morris Sudokhoi .60. I'm wanting to know what engine you put it the plane. I want to do the usual, 3 D, hover etc. Also, did you have ot add any nose weight to make your engine work. I have an OS .91 and a Webra 1.2 available but I would buy what ever works best. Thanks, Pete
Old 11-17-2002 | 02:49 PM
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Default Su-do-khoi .60 What engine do you use?

Saito 1.20 in mine.

Flies it really well.
Old 11-19-2002 | 04:08 PM
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Default Su-do-khoi .60 What engine do you use?

I just bought a Su-Do-Khoi 60 (pre built by Morris Hobbies) and intend to use a YS 91 FZ. If I were to build one, I'd put the tail servos all the way to the rear and fly a Webra 120. You will also want to put the throttle servo in the rear most tray location and pray that no lead is needed. Wayne has the (28 ounce) Saito 120 and used 3 ounces of lead in the tail with the servos in the stock locations. I expect my YS will require the same. If I don't get a "better feeling" about this YS, I'll sell it and buy a Webra for mine. I've used them before and like them.
Old 11-19-2002 | 11:06 PM
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Default Su-do-khoi .60 What engine do you use?

WHAT????!!!!!!!!!! A Sudo .60 is available in ARF form??? And I'm building this piece of junk box of parts they call a kit?! This is the worst "kit" I have ever had my hands on and I have been in R/C for almost 30 years. Sorry, I had to vent, a .60 ARF, I got to know how much they are.

I have been setting the engine mount up for a Webra 1.2. I have three of them and they are the best running engine I have found. So, if I continue with this "scratch build" kit I'm going with the Webra. Thanks,for your help, Pete
Old 11-20-2002 | 03:09 AM
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Default Su-do-khoi .60 What engine do you use?

Originally posted by fxstbi
WHAT????!!!!!!!!!! A Sudo .60 is available in ARF form??? And I'm building this piece of junk box of parts they call a kit?! This is the worst "kit" I have ever had my hands on and I have been in R/C for almost 30 years.


HEEHEEHEE HAAHAAAAHAAAAA HHOOOOOHOOOOOO........COULDNT HAVE SAID IT BETTER MYSELF!!!!!!
Old 11-20-2002 | 05:46 AM
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Default Su-do-khoi .60 What engine do you use?

No, there is as of yet no Su-Do-Khoi 60 ARF. I bought a kit and paid for Alberto (an employee at Morris) to build it. Based on some very good advice I made no attempt to build this "kit". This is what I refer to as an "engineer it yourself" kit. If I had not had them build it I would have bought a U-Can-Do 3D. For the Webra, see if you can work the servos into the tail.
Old 11-20-2002 | 11:23 PM
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Default Su-do-khoi .60 What engine do you use?

Thanks for the info Tailtwister. I am just about finished with the fuse destrct... OOPS I mean CONstruction. I intend to leave some of the sheeting off of the fuse and continue with the wings and tail feathers. I am going to be assembling and checking the CG all the time and plan my radio installation accordingly. I am going to use my Webra 1.2 and probably use two elevator servos in the rear of the plane. I'm keeping the sheeting open in all the areas that need to be accessed to make this as easy as possible. I think that if you would build a couple of these it wouldn't be too bad. Trying to figure out the manual and the plans makes it a struggle. I think the pay off will be in the flying. Pete
Old 11-20-2002 | 11:52 PM
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Default Su-do-khoi .60 What engine do you use?

I too hope for an airborne pay off! I just can't imagine how it will fly. It is said to be super easy to hover and 3D. It should retain some of the Morris "whip crack" fun fly abilities as well. At a minimum it isn't a plane you see everyday! Have you planned a finish yet? I'm going to try a look similar to the Hanger 9 SU-31. I'll substitute "TailTwister AEROBATICS" where they have "Hangar 9 AEROBATICS" on the wing. I'll probably use Monokote Cub Yellow and True Red. Good luck with the "kit". The fuselage is said to be the worst as far as the instructions go. The wing's only problem is getting it flat. The tail is the same. Keep it light. Did you notice the huge discrepency between the plans stated wing area and the advertized area? That kinda' got to me, but I was over it pretty quick. You'd figure they would know the planes specs by now.
Old 11-21-2002 | 02:59 AM
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Default Su-do-khoi .60 What engine do you use?

I just finished the rudder and fin assembly and am starting the stab and elevators next. I weigh all my wood and use the lightest in the rear of the plane. I do watch for high stress areas and use the right weight wood there. I talked with a friend of mine today and we are considering cutting a set of foam wings for mine. I still in the "think" stage on that one. I have found that I can build with wood a little lighter. I not sure yet. Finish? I go with pink and white on all my planes. So I will follow the scheme on the original Sukhoi. All I can say is this thing (and yours too) is going to be a MONSTER with a Webra 1.2! I weighed my engine and muffler and it's right at 29 ounces. I have one of the old cast aluminum mufflers that are about 2" square and 1" thick, not much muffler but light weight. Looking at a review on the Webra engine with a 16 - 5 prop, it puts out 227 ounces of thrust! Ballistic vertical! Keep in touch with your progress. Pete
Old 11-21-2002 | 02:01 PM
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Default Thanks!

I just wanted to say that I sure have enjoyed reading this thread. The entertainment factor has been GREAT!!!
Thanks for all of the laughs!
Kevin
Old 11-21-2002 | 02:22 PM
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Default Su-do-khoi .60 What engine do you use?

I get about 9500 on an APC 16x6 and it's got plenty of pull for up to a 12 pound plane. It may not pull it straight out of a hover, but it will hold it. The 8 pound Su-Do 60 should be a riot with that motor. Just be ready for the vibration. It shakes a plane pretty hard when the displacement gets up there. The Su-Do isn't really all that tough. Maybe I should find someone to trade my YS for a Webra 120?
Old 11-21-2002 | 08:34 PM
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Default 1.20

1.20 4 stroke. Tried OS .91 Just not enough. Ready to fly with out engine 7.25 lbs.
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Old 11-21-2002 | 11:50 PM
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Default Su-do-khoi .60 What engine do you use?

Hi Kevin and welcome to the party. If you are going to read this thread you have to bring something to the party! At least you can lie to us and tell us you built a Sudo .60 and loved the kit or you have one that hovers with a K&B .65 wobble shaft.
The kit process has been a picnic, like one with ants! At least the tail feathers went together easily. Ailerons next, then the wings next week. I have three Webra 1.2's and haven't noticed too much vibration. I wonder if the heaver airframes dampen the vibes and I never noticed it? I hope it isn't a problem on a lighter plane. I'll keep posting as I go, please do the same. Pete
Old 11-22-2002 | 08:11 AM
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Default Su-do-khoi .60 What engine do you use?

i am running a OS-91 on mine, i need about 3 oz to the rear to make the CG!
Old 11-22-2002 | 02:09 PM
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Default Bringing Something to the Party

Ah do I have to? This has been so much fun just reading all of the headaches and hardaches. As a designer, manufacturer, & retailer of Fun-Flys, it is hard for me to comment. All I can say is - Been There - Done That! There are viable reasons why I started to design and kit my own Fun-Flys.

All right, I'll try and contribute something. I too have been running the Webras so years, including the Webra 120s. If you don't all ready have the Webra 120, consider the new Bully. There is a company that modifies the Webra 120 that puts the Moki 1.2 to shame (according to a review in RC Report). This article tested the 120s and rated them for perfromance as follows:
1. Bully (modified Webra 120)
(big difference between these two)
2. Moki
3. TT120
4. Webra 120
This new Bully version has an anodized purple head, 2 glow plugs, new sleeve (to change the timing) and they modify the carb. You can purchase the new Bully direct for about $249, or you can send them your Webra 120 and get it modified for about $120 (on top of the $220 that you paid for the Webra 120). Bottom line, even if you already have a Webra 120, buy the Bully direct!
Kevin
Old 11-22-2002 | 02:29 PM
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Default Su-do-khoi .60 What engine do you use?

No increase in weight then????

Where do we find a Bully????
Old 11-22-2002 | 04:49 PM
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Default Bully

I've seen them advertised in the AMA magazines. I try and take a look tonight and post it for you.
Kevin
Old 11-22-2002 | 04:56 PM
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Default Su-do-khoi .60 What engine do you use?

Originally posted by TailTwister
Wayne has the (28 ounce) Saito 120 and used 3 ounces of lead in the tail with the servos in the stock locations. I expect my YS will require the same.
Build a bigger tail! That way the weight is not "dead"...
Old 11-22-2002 | 05:07 PM
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Default Su-do-khoi .60 What engine do you use?

I'd rather move the servos. The tail is pretty big as it is. I'd hate to tempt flutter any more than necessary. I don't know the math, but the two tail servos could be moved 8 to 9 inches aft. That would place them just behind F5 and the elevator servo could be high enough to keep the pull-pull set up. That would take some of the lead away. I do not think it would eliminate it all together, so it's probably not worth the hastle. The stock servo locations are fairly aft of the CG to start with. If someone was to do it, be sure you cut servo wire holes into F5 before sheeting that area, as that former is solid. All the others have some hole that a set of wires could go through. Also, I think you could double the size of this tail and probably wouldn't add more than an ounce. The stick framework is very light.
Old 11-23-2002 | 12:11 AM
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Default UAV Bully 120s

I did a search, and wouldn't you know it, there was a thread on RCU regarding this engine. Here is its link to the discussion.
http://www.rcuniverse.com/showthread...hreadid=250086
Check it out for yourself.
Hope that this helps.
Kevin D
Old 11-23-2002 | 01:49 AM
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Default Su-do-khoi .60 What engine do you use?

Thanks for the info Kevin. One of my existing Webras is a little tired, I wonder if they could help it and turn it into a Bully? I'll have to look into this. You say you'r a manufacturer of fun fly planes, do you market a .60 size? Also, with all the talent we have on this site, could you run two servos on the elevator in a pull pull set up, with the servos on the same side, one pulling on top of the elevator and one pushing on the bottom? I've never seen this arrangement, but it could be an interesting thing to try. More food for thought. Time to build! Pete
Old 11-23-2002 | 05:34 AM
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Default Su-do-khoi .60 What engine do you use?

I sent an E-mail, I'll let you know the result.
Old 11-23-2002 | 10:57 PM
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Default 60-size Fun-Fly

No I do not offer a 60-size Fun-Fly, though the Ecstasy will fly with a 60, though not to my standards. I [osted several questions regarding what Fun-Fliers were looking for, and the most wanted was a real 90 - 120 size Fun-Fly that was easy to build. Thence the Ecstasy.

Regarding you question of two servos on a Pull-Pull - Why would you want to? You could provided that you put them in line, mechanically connect the arms, run a synchronizer, and run the cables off of one servo arm. If you want to run one cable to each servo, then no.
Kevin
Old 11-24-2002 | 04:54 PM
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Default Su-do-khoi .60 What engine do you use?

Hi Frank,

This is the response to my e-mail looking for a Bully.

Yes we still sell the Bully 1.20. Our current version comes with a single plug head. They are in stock and the price is $298.00 ea. plus shipping. We also stock headers, mufflers and muffled tuned pipes for the 120.

Best regards,
Lynn Osborn
U.A.V. Inc

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