OS 1.60 Questions  
View related threads: (in this forum | in all forums)

Tower Hobbies
Enter up to 4 keywords or Tower stock numbers
Logged in as Guest



Users viewing this topic: none
  Printable Version
       


BCMA 62 Pro - RTR
Seller:  blackbaron
Details:   $395.00   |  8/16/2008   |  Classified Ad
We will rotate YOUR AD in this spot if you select "Forum Featured" when placing or editing your ad!

All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Gas Engines >> OS 1.60 Questions
Page: [1]

Login
Message << Older Topic   Newer Topic >>
OS 1.60 Questions - 12/24/2001 7:14:46 AM   
T28pilot



Posts: 721
Joined: 12/11/2001
From: Colfax, IL, USA
Status: offline 		would like any thought or querks of this motor.....

got one mounted on my lanier edge 540 and in the process of breaking it in......

what if anything should i look for.....

it has a pitts muffler on it.........

i 've heard mid-range can be sluggish and to plug one exhaust outlet?

was going to try it as is but any help would be much apperciated

Attachments
Click to see fullsize image.
Click for fullsize


< Message edited by T28pilot-RCU -- Dec 26 2001 9:12PM >
       Post #: 1

Re: OS 1.60 - 12/25/2001 9:37:15 PM   
T28pilot



Posts: 721
Joined: 12/11/2001
From: Colfax, IL, USA
Status: offline 		No one can offer any help on this?

(in reply to T28pilot)
       Post #: 2

OS 1.60 Questions - 12/26/2001 12:08:36 AM   
wgeffon



Posts: 6375
Joined: 12/2/2001
From: Bloomington, IL, USA
Status: offline 		Hey Mike,

I was at a club in Atlanta watching some guys fly their Ultrasticks with this engine.

Seemed like a typical OS. Good running, good power. They had the stock muffler on it. I think they were using 10% Nitro on it.


_____________________________

Wayne

(in reply to T28pilot)
       Post #: 3

OS 160 - 12/26/2001 12:46:00 AM   
Jim D



Posts: 324
Joined: 12/5/2001
From: Columbia, TN, USA
Status: offline 		Two of these now flying in my club. One on a DP Ultimate with Bisson Pitts (ends cut off) with a mejzlik 18x8 and a Perry Pump. The other is on a SIG X300XS with a Bisson Pitts, perry pump and APC 17x8.

To put it simply, I WANT ONE.

Both planes a completley unlimited in vertical and will climb straight up at a very healthy clip. The guy with the DP Ultimate had been running his for a while and has it well broken in and tuned. It runs like the proverbial swiss watch. Turns the 18x8 Mejzlik a little over 8k on the ground and pulls the DP Utimate with authority. He runs 15% in it, and yes it uses a goodly amount of fuel, but no more than a Saito 180, which likes to gobble 20-30% Nitro to really shine. He simply primes it, puts the ignitor on it and gives it one backflip, it cranks right up.

The one on the SIG Extra is pulling the plane well, but does not have much fuel through it yet and he still sorting it out. He just added the pump. Both the Extra and Ultimate force you to put the fuel tank at a lower lever than the carb creating an uphill draw. The one on the Ultimate is probablyt he finest running big glow engine I've ever seen. I'm sure once the owner of the other one gets his broken in and tuned, it will follow suit.

For the 1/4 scale aerobatic planes, it deserves a serious consideration.

Besides, It's a lot cheaper than a Saito 180 or Moki 180.

_____________________________

Jim Davenport

(in reply to T28pilot)
       Post #: 4

OS 1.60 Questions - 12/31/2001 7:00:56 AM   
rfk1381



Posts: 55
Joined: 12/31/2001
From: Crowley, TX, USA
Status: offline 		I have the OS FX 1.60 on a H9 CAP 232 (25%). It replaced a Super Tigre G2300 that was a living nightmare.

Configured with J-Tec Pitts muffler, OS #8 glow plug, and APC 17-8W prop. Runs well on 15% nitro (tried 10% to 20%, both fine). I will replace APC 17-8W prop with a Menz 18-8 due to Menz good reports.

A real stomper of an engine -- this is an outstanding product. Starts each and every time with two flips to prime, attach igniter to glowplug, and then ONE backflip - POW! Ticks over at 1800 rpm at idle and 8400 RPM top with the APC 17-8W. No transition hesitation or problems. I did adjust the factory low-speed idle to richen it a touch, but other than that, nothing.

I run with a 20 oz fuel tank, and mostly at 1/2 throttle. It is relatively frugal with fuel, compared to others in same class. I think this is due to its carb (same as OS FX .90).

Have not heard about plugging one of the exhaust ports -- that sounds like the ST2300 story.

You would have to pry this engine from my cold dead fingers.

< Message edited by Ron Kosar -- Dec 31 2001 2:04AM >

(in reply to T28pilot)
       Post #: 5

Great to hear!! - 12/31/2001 7:43:04 AM   
T28pilot



Posts: 721
Joined: 12/11/2001
From: Colfax, IL, USA
Status: offline 		Mine seems to be running great so far ......

got about 3/4 a gallon of fuel thru it running as rich as it will...

but i got a 20x8 prop on mine i have to get off.......seemed like a good idea at the time....NOT

when it gets nice out i should have enuff fuel thru it to trust its flying cabalities......

Thanks for the support posts .....Keep'm coming

KNOWLEDGE IS POWER!!!

(in reply to T28pilot)
       Post #: 6

OS 160 - 1/1/2002 8:58:56 PM   
jpflyer


 

Posts: 168
Joined: 12/11/2001
From: Corpus Christi, TX, USA
Status: offline 		I have one of these engines in a Yellow Sukhoi SU-31. This is a very powerful engine. It flies my 12 pound Sukhoi with authority. I am running a 18x8 Zinger Pro and it seems to really like this prop, I am still in the break in phase. It uses far less fuel than a Saito 180. A 16 ounce tank should give you a 15 minute flight plus you don't need high nitro fuels. I had a Saito 170 R3 in my Sukhoi and while it sounded great was really limiting performance. When I switched to the OS, I was just going to taxi a bit, but it took off at about 1/3 throttle. I think it is a good choice for any 12-13 pound plane.

(in reply to T28pilot)
       Post #: 7

How to prime? - 1/3/2002 2:24:15 AM   
RickP



Posts: 1679
Joined: 1/1/2002
From: Levittown, NY, USA
Status: offline 		Hi guys,
I'm curious about this one. I'm putting one in my G-202 and it will be fully cowled. How are you guys priming this motor? I won't be able to get my finger over the Venturi and flip the prop at the same time.
Also, why do you think the 20X8 prop is a no go?
Thanks
Rick

(in reply to T28pilot)
       Post #: 8

Re: OS 1.60 - 1/3/2002 3:44:55 AM   
T28pilot



Posts: 721
Joined: 12/11/2001
From: Colfax, IL, USA
Status: offline 		I know of a guy who runs the 20x8 pro zinger prop with good results.....on his sig 300L

but he doesn't do alot of 3d and i think the more rpms will be a advantage trying to pull out of manuvers....maybe not? hell i don't know

really going off shemps suggestions.......that sorta make sense......that big of prop you won't get but 7-8000 rpms....and also there would be a overheating problem i suppect...but i have no idea.....i am breaking it in with the 20x8 cause that is what i got....till now i got the 18x8 pro zinger going on it tonight for the last 2 tanks before flight....i think a full gallon thru it as rich as it will run should be enuff for a reliable first flight ...but who knows?

Hopefully Shemp will elaborate on this a little bit more and help us all out!

(in reply to T28pilot)
       Post #: 9

choking - 1/3/2002 4:36:05 AM   
jpflyer


 

Posts: 168
Joined: 12/11/2001
From: Corpus Christi, TX, USA
Status: offline 		I just put my two fingers over the exhaust outlets, go to full throttle, and flip it through two or three times. Reset the throttle, hook up the glow driver, then flip it backwards. It usually starts on the first flip. When you can do this consistently, it just amazes some of the other guys at the field who can never get their engines started.

(in reply to T28pilot)
       Post #: 10

OS 1.60 Questions - 1/3/2002 1:44:31 PM   
ShempHoward


 

Posts: 1147
Joined: 12/4/2001
From: San Francisco, CA, USA
Status: offline 		It appears that the Bisson Pitts for this engine seems to be the better design with visable proper internal baffling and smaller exhaust tubes to provide back pressure to the tank. Priming a fully cowled engine is just as JPFlyer said - plug both down tubes, open throttle to the max and turn the engine over a few times which is the same priming proceedure for many cowled engines - both 2 and 4 stroke. I think any prop larger than an 18X6 or 18X8 would be lugging the engine and a 20" prop in a cowled situation might be having cooling issues that may only be resolved by either chopping up the cowl for cooling and/or richening up the high end. In either case a 20" prop will not offer the performance you would want on any 120 size aerobatic plane.

(in reply to T28pilot)
       Post #: 11

Thanks - 1/3/2002 6:05:49 PM   
RickP



Posts: 1679
Joined: 1/1/2002
From: Levittown, NY, USA
Status: offline 		Hey Guys,
Thanks for the info, I know it seems like basic questions - but I appreciate the advice. I know priming my Cap is always a problem, so I hope the OS is all I hear it to be. I'll also pick up a 18-8 prop
Rick

(in reply to T28pilot)
       Post #: 12

OS 1.60 and Mejzlik 20X6 prop - 1/12/2002 4:29:53 AM   
Sky_pilot_one


 

Posts: 5
Joined: 1/10/2002
From: Connecticut
Status: offline 		This is a great combination if you don't want speed but the ultimate in thrust.
It pulls my 14# Yellow Aircraft Extra 300L straight up out of hover at about 2/3 throttle

_____________________________

Brian
KB1DTB

(in reply to T28pilot)
       Post #: 13

Page:   [1]
All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Gas Engines >> OS 1.60 Questions
Page: [1]





Jump to: