JollyPopper

My Feedback: (6)

The weather is too nasty to be outside. I have run out of propane for my shop heater, so it's too miserable to be out there fooling with planes and engines. So I was just sitting here thinking about which engine is my sweetest running glow engine. I am considering ease of starting, good power, reliable running (no dead sticks), little or no fooling with the needles at the field between flights, the engine I take to the field, flip once or twice, it starts, and I am confident that it will still be running when I land. It may or may not be my favorite, but it is my sweetest running. Below is a partial list of some engines that I own and where I would rate them on a scale of 1-10.

OS .60 FSR: 10
OS .70 Surpass: 9
K&B .65 Sportster: 6
CoMo .50: 8
Tower Hobbies .46: 9
K&B Sportster .45: 5
OS .46 SF: 7
Super Tigre .60 (Italian): 8
Magnum Pro .40: 3
HP .40: 8
OS .60 FP: Not totally broken in yet. If it ever stops trying to break my finger, I think it will run well.

What is the sweetest running engine you have?

Man, you gotta really be bored to do something like this.

summerwind

OS ft1.60 twin-10+
OS 91. fs surpassII- 9.5
Laser 200V- don't know yet
Laser 80- don't know yet

RVman

webra 50 - 10
ST 45 - 9
Irvine 53 - 8
Enya 61CX - 10
saito 82 - 7
ST 90 - 7

GaGeeBees

My Feedback: (23)

Saito 2.70 twin. I like 'em so much I have four, all flying. Smoothest running, easiest starting, most trouble free engine out there. I've got a Saito 1.70 radial that's a close second. Can't beat the sound of a radial engine.

KI8FR

OS 70 surpass. 9
ST 75. 10
ST 45. 9
Quadra 40 gas. 9
Quadra 35 gas. 9
Us 35 gas 9
Us 25 gas/glow 10+
Us 35 gas/glow 10+
3W 42 gas. 8
Homlite 25 gas conversion. 9
Homlite 25 gas/glow conversion 10+
Webra 61 gold head. 10+
ervin 40. 10
ervin 61. not know yet
OS 46 sf 10+

I think that is all I have. lol
Paul

Ed_Moorman

My Feedback: (1)

My 2 sweetest running engines are my my OS .55AX and my OS .70 Surpass. Both have started easily, broken in easily and start at the field in one flip or one tap of the starter. They just run-no hassle, no messing around, no stopping, they just run every time.

TCrafty

I've got a few.

OS 46LA
OS 91 4-stroke
two G2300 Supertigres

Scott McCrory

OS 1.08FSR (BX-1)
OS .91FX

Scott

Hughes500E

My Feedback: (16)

Sweetest running engine
Saito 170 3 cylinder on my 1/5 Waco
YS 110 on my Extra 300 (so much so I bought another one for my 1/7 Spitfire)
and another favorite, the old OS 48 Surpass on my wifes LT40

No more 2 strokes for me

jeffk464

OS 91 surpass definite = 10
OS 55AX = 9
gms 47 = 6
tower 75 = 5
supertiger 2300 = 0

hrrcflyer

Here's mine

Saito 125 - 9
Saito 180 - 9
YS 53 - 10
YS 91 - 9
YS 140 - Dont know. I haven't run it yet.
3W60 - Dont Know. I haven't run it yet either.

Happy Holidays everyone!

somegeek

My Feedback: (2)

OS .46 AX

somegeek

Teachu2

My Feedback: (133)

O.S. SF 25,40,46,61 - 10s
O.S. 120 Surpass II - 9.5 after you learn the trick to making it idle
O.S. 91 Surpass - 10
O.S. 26 Surpass - 9
O.S. 160FX - 11+
O.S. FP .10,15,25,40,60 - 10
O.S LA 40,46 - 7
T.T. GP 40 - 10
T.T 25 Pro - 9
T.T. 40Pro - 9.5
T.T 46 Pro- 10
T.T 61 Pro - 9
T.T 91 FS- 8.5

MDS 40- 7.5

Fox .15 - 10
Fox 40BB - 8
Fox 50Deluxe - 9

Saito 30,40,56,72,91,150,180 - 10s

YS 45, 61 two-strokes- 8.5
YS 63,120 four-strokes - 8.5


These are all engines that I have owned from new and flown regularly. Generally speaking, any O.S. or Thunder Tiger ball-bearing two-stroke without a remote needle valve is going to run well right out of the box. The O.S. FP series of bushing engines are still common on RCU and elsewhere and are dependable to a fault. Saitos are my favorite four-strokes, set 'em and fly 'em. YS engines give great power for their displacement, but require more of everything (cash, nitro, maintenance, setup) as is true with most high-performance engines. Fox motors need more attention during breakin, then last a long time. MDSs are a crapshoot, some run well, some don't.

I've been at this a lot of years - over 35 - and can remember some real junk motors. Testors/McCoy .35 that required parts after both flights (which were both dead-sticks, as well). When I started, the best sport motors on the market were the K&B .40 and Veco .61 - and the 61 was a BIG engine!

Many factors have made today's model engines so reliable. Advances in metalurgy, CNC machining, props and fuel have taken a lot of the tinkering out of sport motors. A good modern sport 46 pulls as well as the best 61s of the 1970s - and costs about the same!

It's rare to buy a name-brand engine today and have a problem getting good performance out of it. All the major players have developed user-friendly engines, produced them to very close tolerances, and kept the costs down relative to inflation. We have LOTS of sweet running engines to choose from. Between that, radios that work, and decent quality ARFs for less than you could build a kit for, you youngsters have it pretty easy! Man, I feel old - and I'm only 48!

loser

My Feedback: (37)

I'll only mention one......

My old YS 1.20 AC......idles sooo low and smooth and pulls an 11lb Ultra sport 1000 outa sight..... I'll score it a 9.9 It doesn't get a ten only because of the routine maintenance required.

redbluffwingnut

My Feedback: (2)

All of my OS engines run smooth with no trouble the 2 i like the best are my 90FSR and my 70 Surpass had zero trouble out of both i have a 12yo 61SF that runs great and i have had it on the same plane sence day 1 (Kadet Senior Kit) it was my 2nd plane and i will never quit flying it am just getting into gas i have a DA 50 and a BME 50 but haven't ran eather yet and my OS BX1 is still in the box but i have tryed other engine and keep going back to OS i do have a Tower 75 on my Miget Mustang with about 5 flights so the jury is still out on that one

WMB

My Feedback: (1)

Saito 65 for me. Smoothest, reliable, easy start and tune. Not the most powerful though.