U Can Do .60 What engine?
12-18-2007 | 10:52 AM
#1
Thread Starter
My Feedback: (41)
U Can Do .60 What engine?
First of all I want a 2-stroke I seem to have bad luck with 4-strokes and cant really afford one right now. My choices are:
Super Tigre G-75 $109.99
O.S. 91FX $209.99
Tower .75 $94.99
The O.S. is a little high and the Super Tigre .90($119.99) is out of stock everywhere and Im impatient. I would like the plane to hover pretty good and be able to pull out but it doesn't have to be a rocket ship. Also I read a warning from great planes about overpowering these planes causing shutter because of the lightweight build. If you can give me a prop size with your recommendation. Please help Im in a hurry lol. My servo setup will be standard on elev. and ail. but HT MG on rudder. Oh yeah the Tower .75 is out of stock right now too but should be in pretty soon.
Super Tigre G-75 $109.99
O.S. 91FX $209.99
Tower .75 $94.99
The O.S. is a little high and the Super Tigre .90($119.99) is out of stock everywhere and Im impatient. I would like the plane to hover pretty good and be able to pull out but it doesn't have to be a rocket ship. Also I read a warning from great planes about overpowering these planes causing shutter because of the lightweight build. If you can give me a prop size with your recommendation. Please help Im in a hurry lol. My servo setup will be standard on elev. and ail. but HT MG on rudder. Oh yeah the Tower .75 is out of stock right now too but should be in pretty soon.
12-18-2007 | 12:19 PM
#2
Senior Member
My Feedback: (1)
Joined: Mar 2004
Posts: 2,690
Likes: 0
Received 0 Likes
on
0 Posts
From: Auburn,
WA
RE: U Can Do .60 What engine?
I don't know much about the Tower engines but I would steer clear of the Super Tigers. I've seen several guys down at the field try to get them to tune right and have lots of problems with them. The reason the OS 91 is $100.00 more is because it's clearly a much better engine.
Also the reason that GP warns about overpowering the Do's is that they aren't made for any kind of fast flight or dive bombing and pulling out real quick. You can put a Saito 100 on the 46 with no problems and have lots of fun with it as long as you don't overspeed it too much. Same with the 60. I've got a Saito 125 on my 60 and it flies great but you just don't want to fly them full blast.
One of the guys at our field had a 46 with an AX 55 and he was zipping around the field with it making it try to fly like a P51 Mustang. Well we warned him it was going too fast and sure enough it exploded. There were pieces scattered over 100 ft.
Also the reason that GP warns about overpowering the Do's is that they aren't made for any kind of fast flight or dive bombing and pulling out real quick. You can put a Saito 100 on the 46 with no problems and have lots of fun with it as long as you don't overspeed it too much. Same with the 60. I've got a Saito 125 on my 60 and it flies great but you just don't want to fly them full blast.
One of the guys at our field had a 46 with an AX 55 and he was zipping around the field with it making it try to fly like a P51 Mustang. Well we warned him it was going too fast and sure enough it exploded. There were pieces scattered over 100 ft.
12-18-2007 | 12:23 PM
#3
Senior Member
Joined: Mar 2005
Posts: 254
Likes: 0
Received 0 Likes
on
0 Posts
From: Tucson,
AZ
RE: U Can Do .60 What engine?
First, forget the 75s, if you want to hover at all they just won't do the trick. OS91 is really your best bet here.
I've owend 8 of these (but not one failure that I didn't cause), everyone had an OS 108 for YS110. Over powered? yes, but if your learning to hover you will want to be able to poor on the coals and get #$LL out of there. Just don't do any full throttle down lines and you'll be OK. It's not the amount of power, it's the speed, which results in flutter, which results misery. FYI, I mounted them all horizontally, the cowl will look a little hacked up, but less trouble keeping them running and that's VERY important for 3D down low.
Hope this helps a little.
I've owend 8 of these (but not one failure that I didn't cause), everyone had an OS 108 for YS110. Over powered? yes, but if your learning to hover you will want to be able to poor on the coals and get #$LL out of there. Just don't do any full throttle down lines and you'll be OK. It's not the amount of power, it's the speed, which results in flutter, which results misery. FYI, I mounted them all horizontally, the cowl will look a little hacked up, but less trouble keeping them running and that's VERY important for 3D down low.
Hope this helps a little.
12-18-2007 | 01:12 PM
#4
Senior Member
My Feedback: (13)
Joined: Jun 2004
Posts: 2,118
Likes: 0
Received 0 Likes
on
0 Posts
From: Merced, Ca.,
CA
RE: U Can Do .60 What engine?
Khaley45:
Its strange, some people can not get a Super Tiger to run well, others simply love them. The guys at our field thqt occasionally do have problems with the ST, also have problems with OS, TT or any other engine they simply have to adjust to death. They adjust on the needle every flight, just can not leave the engine alone until it just will not run. They end up having to pay one of the old timmers a few bucks to get them running well again. Usually its a carb cleaning job along with new "0" rings, and get the prop correct. Yes, the OS is a decent running engilne, but nothing exceptional and not $209>00 in value for cheep nacil cylender and worst bearnings in the business. But, to each their own. Nothing wrong with the St 75. It is important to follow fuel and breakin requirements. My $400 + Jett and Nelson engines also require very good breakin proceedures if you want them to run better than most. If you want them to run well, follow the manufactures instructions. ENJOY
Its strange, some people can not get a Super Tiger to run well, others simply love them. The guys at our field thqt occasionally do have problems with the ST, also have problems with OS, TT or any other engine they simply have to adjust to death. They adjust on the needle every flight, just can not leave the engine alone until it just will not run. They end up having to pay one of the old timmers a few bucks to get them running well again. Usually its a carb cleaning job along with new "0" rings, and get the prop correct. Yes, the OS is a decent running engilne, but nothing exceptional and not $209>00 in value for cheep nacil cylender and worst bearnings in the business. But, to each their own. Nothing wrong with the St 75. It is important to follow fuel and breakin requirements. My $400 + Jett and Nelson engines also require very good breakin proceedures if you want them to run better than most. If you want them to run well, follow the manufactures instructions. ENJOY
12-18-2007 | 04:16 PM
#5
Senior Member
RE: U Can Do .60 What engine?
I would suggest the Magnum 91 XLS, it is cheap, powerful and almost the same weight as the 75`s.
I do own the Tower 75, OS 91 FX AND the Magnum 91 XLS and the most bang for the buck is no doubt the Magnum.
Alot more power than the Tower 75, lighter than the 91 FX and half the price of the FX but still runs as good if not better than the FX.
Here`s a tip along the way, the Tower 75 MUFFLER fits both the Magnum and the OS with just a little enlarging of the bolt holes in the muffler. It will add some serious power AND save you about two oz in weight. My Magnum 91 with tower 75 muffler weighs only 687 grams ( 10 grams more than the Tower 75 engine)
I do own the Tower 75, OS 91 FX AND the Magnum 91 XLS and the most bang for the buck is no doubt the Magnum.
Alot more power than the Tower 75, lighter than the 91 FX and half the price of the FX but still runs as good if not better than the FX.
Here`s a tip along the way, the Tower 75 MUFFLER fits both the Magnum and the OS with just a little enlarging of the bolt holes in the muffler. It will add some serious power AND save you about two oz in weight. My Magnum 91 with tower 75 muffler weighs only 687 grams ( 10 grams more than the Tower 75 engine)
