RE: The twist is here!
 

Too much engine. I have a .46 fx with 12.25x3.75 and it climbs out of sight. I have no shortage of power, and @ WOT, it's still, in my opinion, too fast for the plane. I think the saito .72 or .82 will probably end up being the perfect power plant for the twist, but if I was going to stay with a two stoke, a .46 is more than enough if propped right.

my .02

k

RE: The twist is here!
 

Can you hover with a .46 and then actually climb staight up out of hover... in other words.. be pointing vertical at a stop or even a little tail slide down.. then.. go straight up from there? If so.. Does it pull out of hover fast.. slow? I have a friend that has a .46ax and he is thinking about getting one too. Looking for a home for his engine. I got the ys63S for it myself.

RE: The twist is here!
 

The .46fx ( I forgot to mention that I have a tower muffler, which is to me the equivilant to taking the baffle out of the original one) with a 12.25x3.75 will pull it out of anything, assuming you hit the throttle fast enough :) The downfall with the 2 stoke is that it does take a little longer to wind up to it's powerband. Mine has plenty of pull out from a hover, and I don't get scared when I get in an awkward situation b/c I know I have the power to drag myself out of it.

If it's fast or slow is a tricky one. It doesn't jerk it out of a hover like the ys 63 or a saito .82 probably will, but when it winds up, I would consider it fast going straight up.

When it comes down to it, it's all about how the power is delivered. You will probably get more actual thrust out of a .46 with the 12.25x3.75 than say a saito .72, but the 4 strokes thrust is easier to use.

RE: The twist is here!
 

Cool.. just making sure it had unlimited verticle. Thanks. Very good points on the 2 vs 4.

RE: The twist is here!
 

I finished up mine yesterday with a Saito 100 in the stock motor mounts. Weight is around 5.5 lbs. Haven't flown it yet- it replaces my ucd .46 so I have high expectations
Oh by the way if you have crashed ucd parts around, the ucd gear will bolt right on this plane if you enlarge the holes a little bit. Taller and wider ;)

RE: The twist is here!
 

OK, the maiden flight is out of the way. Carb problems on the 100 kept it short and high up. It seems like the surfaces have less authority than on the ucd, but 5 minutes probably isn't enough time to judge that.

I noticed something odd though- the wing fit on the fuse seems really loose. The rear bolt tightens down fine, and the rear of the wing snaps into place on the fuse. But the front rocks around quite a bit, enough that in flight the Saito's vibration was making some really unpleasant noises. Anybody dealt with/ fixed this? Or is it just part of the Twist 'experience'?

RE: The twist is here!
 

How did the plane balance with the 100? Do you think it's going to be enough engine? :D

Can you post some pics of the motor mounted...I was considering a .91, but didn't think I could squeeze it in there.

kevin

RE: The twist is here!
 

I heard that an OS46FX was enough.....your putting in a 100? dang. my maiden is tomorrow morning. Only 2 hrs of work a night for one week and its done (i got it on the 7th). Hope my 46AX is enough with a Tower muffler spinnin' an APC 12.25x3.75 :D

NICE!

RE: The twist is here!
 

Well I flew the Twist for 2 days and am over it. It was just not a good flier for me. Now, this may be because the big Saito cranked the wing loading up too high, I don't know. But it weighed in at 5.5 lbs without fuel. My Ucando 46 was 6 lbs 2 oz, and the size difference was dramatic.
Let's see. Blenders were awful, knifeedge showed some promise. Hovers were rock solid, until the slightest breeze showed up. This plane does not like wind. It rocked the wings a lot and I had a very experienced flier attempting to harrier it around. In fact he had a Twist almost finished but is now selling it after flying mine.

Oh did I mention I broke it in half? I had a deadstick (rare w/ Saito) and on landing a wing rubbed a prairie dog hole. It kicked the fuse sideways and snapped it in half, right at the rear wing mount. There is absolutely nothing in there for strength, it is an extremely weak area. I reglued it with carbon strands and put in an angled balsa gusset before flying it today. So watch that, weak!!

As for fitting the Saito. Not much to it. I used the stock mounts and ground on the top/ inside to put a bevel to clear the engine so it would fit without spreading the beams out. Turned the carb over so the needle comes out the left side. Ground a notch in the cheek for the needle. With this setup I put the battery as far back as possible, balanced perfect at 5".

Don't know if the engine was the problem or not, but this plane just did not do it for me. I bet it would be better with something smaller, but the Saito was what I had ready to go. It does pull the plane vertical about 30 mph :D

Think I'm getting a Flip this week- is that still the good stuff these days?

RE: The twist is here!
 

Kevin

Counter Balances on a a full sized plane or a giant scale (if its actually balanced) are to lower the chances of flutter by equalizing the fore and aft weight of the control surface. On a plane like a Twist, it’s simply more control surface to deflect more air to increase the planes 3D performance.

Regardless of what Hangar 9 says, I agree with you. Counter balances on a .40 sized plane at high speeds are sure to cause a falure sooner or later. Happened to me on my UCD 46, It was NOT pretty. Just keep it slow and have a blast.

Rick

Twist with an OS 46 AX? Opinions are Welcome
 

Getting ready to buy the H9 Twist and was thinking of putting an OS .46 AX on it. think it will be a good combo? I am not one of these guys that likes to exceed the recommended engine size. I will agree there is no such thing as too much power ... however there IS such a thing as too much motor.

Awaiting your opinions and suggestions.


Rick

RE: Twist with an OS 46 AX? Opinions are Welcome
 

.46 ax is plenty of motor...mine has a .46 fx and it's a blast. If you don't just have the motor laying around, I'd save my money for a used .72 saito. This plane is such a slow flier, I bet the low end of the 4 stroke will make it even more fun to fly.

my .02

k

RE: Twist with an OS 46 AX? Opinions are Welcome
 

Hey Twisters,

I have an OS .70 4 stroke on my twist and she is the best plane in my hanger, she does everything and more then you could ask for, the 70 is a little heavy for it, but it can fly at a crawl and does any 3D thing imaginable, Harriers are the easiest thing, knife edge is awesome and Hovers for me are getting much better, but the unlimited vertical from Idle on the runway to Orbit is lightning fast and incredible with the 70. She rolls about 1 foot and then I shoot her straight to the stars. [X(]:D:D

There is a whole 150 pages of twist info and combos from a bunch of us twistoholics on another thread,,,:D you should check it out!!! these guys have put the Twist through all kinds of combos and and they are very helpful too, I have been flying for 35 years and the Twist for $99.00 is a great deal, I hear allot about the Os 61 being the perfect motor for her, and that the .46 AX works great too I had a little trouble learning the hover with the 70 planted on her, but I wouldn't have it any other way, this plane rocks and is quite impressive at the field, you just have to give it a chance, everyone talks about the break right behind the wing saddle, so when you put her together just throw in some ply braces behind the former and epoxy it in, its just a real lightweight plane for ultimate performance.

Just go here for all your answers and join us in the Twistoholics club, its a blast....

http://www.rcuniverse.com/forum/fb.asp?m=4228707

RE: The twist is here!
 

What prop are you using? I have a 13x5 MS K series on mine w/magnum 70, but I think the APC 14x4w worked better even though it didn't spool as fast.

RE: The twist is here!
 

I think the 14x4 apc worked the best for the hover, and most of the 3D, but I busted mine a couple of weeks ago, and won't be getting another one until late this week, I'm using a 12x8 at the moment and this thing rocks for speed, but a little tougher in the hover but still handles well, I've also been using a 13x6 and that works well also, I think the 12x8 is my favorite, but the 14 x 4 is going back on soon, and mine spools up Okay, but it does feel a little slower over all, I like to keep changing things around to really get the best combo, I'll probably split the difference and go with the 13X6. :eek::D