Wayne, welcome, i second the 91 as being a great choice, it will not get you IN any trouble, it will only get you out of trouble if anythingand will be good on consumption also, i would start out flying only 7-8 min. at a session untill you get it leaned out and then you can go more after you see how much fuel you use.

the pinned hinges will be fine, i use dubro pinned hinges.

to tune that 91 you will need a tachometer(also to break it in so you can keep it down to 4000 rpm for the suggested time, then you can take her out and wind her up to full throttle and lean her down till you get max rpms,( a 15x4 or 14x6 will do great with the 91)then after you reach max rpms just richen her up till you drop down 300rpms and fly it there, should be some where between 8600-9000 rpm.

and above all, do not be nervous because when you lift off you gonna be doing nothing but smiling after 4 mos on that trainer

go here to learn more about saitos and if you have any hard Q's about them, there is more smarter guys there

http://www.rcuniverse.com/forum/m_33...64/key_/tm.htm

Thank you all! I really appreciate the replys and encouragement.

I have Thursday and Friday off this week, basically a four day weekend, so I hope to get the plane on it's maiden Sunday after I break in the engine on Saturday. I don't have a test stand and I live in a townhouse (close proximity to everyone), so I plan on running 4 or 5 tanks of fuel through the engine (on the plane) using one of the setup tables at the field. They prevent the plane from moving anywhere (steel rods with padding) in front of each LE of the wing, so should be fine.

I'll post any questions as they come up and report in after maiden!

- Wayne

sl1200mk2...
On your engine break in just run it in your kitchen for approximately 40 minutes. Use your exhaust fan on your stove and ear muffs. It's not all that bad.
Good luck on your maiden. You'll love this plane. I think.
Thanks
Barry

Interesting,searched this entire thread for the word "harrier" and nothing comes up??!! I know this plane will hover, but will it Harrier??? I'm putting my .46 back into the air,it wouldn't(I couldnt)harrier then but I'm going to use what I learned with the .60 to try one more time for full 3D with the .46. I posted the info on the .60 thread. I'm going to continue to use the Saito 1.00, I beveled the wing trailing edges for about 60 deg. throw and will set up my radio to use most of that throw for harriers only. It worked wonders on my 2d .60 Do, hoping to have more fun with the .46. If it works I will have figured out what the "fat" wings need to harrier without rocking at all. Anyone doing harriers with the .46??

I don't have much success with RCU's search engine either.
While I feel that the UCD 46 is a better 3D flier than the UCD 60, I have found that they are both lousy harrier machines. The UCD 46 will harrier within very a narrow band of angles of attack and throttle settings but can easily be blown out of a harrier by the slightest breeze. That's why I never attempt a harrier at low altitude. On the other hand I can harrier my Cap-X all around the field and land from a harrier and it's a heavier airplane with a higher wing loading. When it locks into a harrier it seems almost safe from a snap. Is it that heavier planes are easier to harrier?

Thats what I thought at first but now I know otherwise. Sure,some designs do harrier better and you get that locked in feeling. Caps are one of them. My second .60 UCD Harriers with the best of them,I get down and can touch the tail wheel if I want,can even turn it around and come back the whole length of the field. Wing loading is not the only thing,the wing must be stalled completely.Scale aerobats stall easier because of the thinner & sharper wings but the .60 size "Do" will harrier well if set up right. Both my first .60 and the .46 used to rock like crazy and I tried everything(I thought)to lock in but failed. When I got my 2d "Do"(.60), the only thing different was an inverted mount engine and I beveled the wing trailing edges to allow at least 50 deg. throw. Then I discovered I wasnt getting the maximum throws on spoilerons due to the radio. Since I solved that,I get at least 45 deg. up ailerons and have some travel left over for roll control. I almost gave up on the Do but now I love it,like I said-it Harriers with the best of them--now--locks in pretty good too.

Hi all! 50 & rainy, windy here in Ohio. Not much flying going on here. Picked up a new Saito 125 yesterday. Can't wait to fire it up. Temped to try it in UCD, but my 80 flies it pretty good though. What type glue works the best with carbon fiber rods or fiberglass for that matter. has anyone tried Gorrila glue on them?

Barry, gjeffers How are you figuring thrust for engines?


Doug

Doug, carbon fiber for control rods? If you're talking about control rods I use JB Weld. Takes a while to cure but works great. [8D] Beautiful sunny day here but only about 30 degrees. I'm home with a cold though.......[>:]

Thaks Rob I just checked and there is a faster set-up J B Weld now. Ditto on being sick with a
cold also. Still here at work.

Doug, Sorry you have a cold too. I was thinking that a couple of snorts of glow fuel exhaust would clear up my head but I didn't get that far. I may have to start up my 91, that I haven't flown yet, out in the driveway. I had hoped that I could get some flying in with the good weather and sunshine. Hopefully tomorrow. Last weekend was great. I got to fly many, many times on Sunday and it got up to about 60. Now some arctic blast is coming through and it's supposed to only get to about 40 during the day and in the teens at night...[X(] Ya never know what you're gunna get for weather around this goofy place. [>:]

Hi Doug, i just take a straight line piece of control rod wire and tape it to the bottom of the fuse, 4-40 will work and then use my triangle degree thingamajig and take a wild guesstament, and if its to much i reduce the thrust a little, nothing fancy here, remember i am a truckdriver, but a great pilot though

Rob, glad you had a little luck with the weather last weekend, summer will be here before long and then you can razz me(but for now i win

doug, you will love the 125 but i think its a little to much for the 46 but now the 60 is a different game!!

Guys,

I have a problem and need some advise. I'm in the process of mounting my Saito .91 using the standard mount included in the kit. I believe I saw posts of guys using this same mount with up to .100 sized Saitos, but I can't see a way to make it work without removing one of the bolts used to attach the carb to the engine body.

With it mouted as is, the engine front of the engine case (the mounts) are about 1mm from the tip of the engine mount - it's about as far forward as (I think) you can safely get while still being close to the suggested dimensions in the manual (5" from FW to back of spinner plate). The only alternatives I can see is removing material from the engine mount or removing the that part of the bracket all together, using a different mount (suggestions?) or doing what I have done.

While the carb is extremely important, I can't initially see how this piece undergoes enough strain where I can't safely remove one bolt. I did use blue locktite on the remaining bolt to keep it securely in place.

Is this a really bad idea? How did you guys with .91's or 100's get these mounted with the stock mount?

Please see the attached pictures and let me know any ideas. You can see where the one engine mount bolt (silver) is right up against the back of the motor where the other black carb bolt should be.

Thanks -

Wayne

sl1200mk2... I used the bigger GP mount when I installed the S100 and I had
somewhat of the same problem on that mounting bolt. But I only needed
alittle more clearance so I just filed it down some, being careful to keep the
working end working... It worked for me... I would guess you could find a
flatter bolt/screw and/or counter sink the mount also???? which I feel would
be better...

You may be right on the removal of the one carb. mounting bolt????? But
IMO... I wouldn't do it.... I would think there is a fair amount of vibration
while flying/3ding.... And it may cause problems... But that's just me....

Wayne, Sorry it's being a pain for you. I just recently mounted a 91 to a mount for a Funtana and it was a challenge too. It seems like I had to do some grinding of the mount material to get it to work but it did work out fine. But that is a Hangar 9 mount. I wouldn't remove the carb bolt. There must be some other mount that will work. One of the other guys on here must have come across that and will chime in on this. You might have to relocate a few of the T nuts on the firewall. If you have to move them it's a good idea to fill in the unused ones with a chunk of dowel rod and epoxy. Also if you do have to fill holes with dowel rod make sure it's flush on the inside of the firewall or it could interfere with the new T nut.

i used the 60 size gp mount for mine, it was easy(except having to plug the old holes and drill new ones to put in new blind nuts, but either way ypu go there is work, so take your pick
the four little dark spots on the firewall are the old holes.

Thanks guys... I really appreciate it.

Dumb question, I plead my ignorance here. This is my first 4 stroke and only my 2nd engine - first was 2 stroke .46 evolution. What's the nipple on the back of the crank case on the Saito .91 for? Is it part of the vent return line (using a T-cross with the other end on the muffler) or is it a line to expell half burned fuel? Does the line run out on it's own under the air frame?

Sorry.. the Saito manual doesn't go into any setup detail at all, nor are there any setup articles on the Horizon site. []

This is my second plane - the first being an RTF glow trainer, so this is a learning curve for me.

Thanks again!

Wayne

I used the stock mount with the 100. I just used a counter sunk screw in that spot and it works fine. The nipple is a breather, just put 3 to 4 inches of fuel tubing on it and let in stick out the bottom.

Beechtech is right on Wayne, the nipple is a crankcase breather, it allows the oil to "flow" through the crankcase , if it were to get pluged up you would not get any oil flow through the case and your bearings, cam and connecting rod would fry so just put a line at least 4in long, that is the volume of the stroke of the piston and any shorter it will suck in outside air and you dont want that

you are in the same position i was 2 years ago, i had a evo 46 in my alpha and i bought a saito 100 for my 60 size ucd and im on my 7th plane now.

if you like reading you can go to the saito thread "club saito" here on rcu and learn and ask all the questions there you want and not stump those guys

Uhhhhmmmm.....errrr..... Our thread has slipped to the second page.......[:-]
How is everybody out there? How are you doing Gary? Barry?

sl1200mk2
the stock mount for the 46 works great with my Saito 65 and the 65 has the exact same mounting dimensions as the 91 so I have to believe that it will work the same for you as it did for me.
All you have to do is reverse the carb so the needle is going out the other side of the cowl and then grind off the part of the mount that holds the nose wheel. This should offset the carb enough to the left side of the plane for the carb bolt to miss the mount bolt.
If your still having problems let me know and I'll pull my cowl off and take a picture.

doing great Rob!!! just sitting here working on my sons trainer, im rebuilding my first trainer for him
got it running great today, was running like[&:]
flew my edge today also and had to re-adjust to the speed after flying my 60 do, the 125 is great with it[8D]
we took a little of your rain away for a few days so maybe you got to fly alittle

catch you guys later!!!

oh, almost forgot, had the first Trona funfly (or anyfly) here this weekend, Tim C came down from Lone Pine and another guy named mike came from Ridgecrest and the three of us flew about 3 hours. had a great time

Cee Gee...

I'm still here, I just don't have much to report. The snow is getting deeper, not melting. I'm working on a Maxair Velox and I just got my Mayhem after a 13 month wait. So I'm building but also distracted because of the birth of a new grand daughter.

Anyways, I'm doing good and looking forward to the upcoming flying season.

gjeffers...nice looking pictures. Man, you're the envy of the RC world with your winter weather. And you really do have a nice field.

Hope everybody's doing well.
Thanks
Barry

Hey Gary. I wish I could come down to Trona. It looks great there. I think you did relieve us of some rain. Thanks. I saw Tim C's post of that picture on another thread and wondered if it was you he had flown with. How many other fliers could there be in Trona though? [8D] Sounds good about your UCD 60 and 125 I got to fly on Sunday but didn't get to fly the Do. [X(] I got to maiden my new Funtana / Saito 91. Well one of the really, really, good fliers maidened it and then I flew it around some to get used to it. It flies great, awesome! Totally different type of plane for me so it will teach me some new stuff. Maybe to even fly inverted, low over the runway.[X(] Gotta get some pictures of that.....[8D]

Hey Barry, Sorry to hear you are still so snowed in. Yikes! I didn't know it was like that just right next door to Washington. [X(] I need to get out more. [:-] I'm glad you're doing good.
Congratulations for you granddaughter. What's a Maxair Velox? Hmmmm...... I'll have to look that one up.
Here it is.........[link]http://www.maxairrc.com/prod_desc.php?itm=vel68[/link]
Looks like a good plane.....[8D]