SC Engines are back! .15 AP Hornet to 64cc 5 Cyl Radial.

[Paul Marsh]

SC Engines are making a come back. J Perkins.

 

4 Strokes

 

2 Strokes.

 

 

Edited October 8 by Paul Marsh

[dave windymiller]

Brill!

[payneib]

Now would be a great time for a long lost, incredibly rich relative to snuff it and leave me everything in the will.

 

One of these in a what, 3rd scale, WW1 project? Lovely........

Edited October 8 by payneib
Sausage fingers

[Dale Bradly]

I saw these on Aliexpress last night, and thought it was too good to be true.

Interesting JPerkins lists a .32, which i want, but Aliexpress doesn't. Hopefully soon!

[PDB]

Leeds Model Shop have some in stock.

 

Great to see some more choice in glow engines. 👍

[Martin Harris - Moderator]

Just Engines showing the return too!  Looks like ASP versions have been dropped - but the only difference was the crankcase casting and cardboard box printing as far as I'm aware.  Great news although prices seem to have jumped somewhat.

[Andy Stephenson]

I'm trying to see what the difference between the two versions of the .108 2 stroke would be as the SC108A-S at 733g and the SC180AR at 1530g that's more than twice the weight for the same capacity. There's not much in the descriptions to justify this, although I think someone had boobed because it says this equates to 0.04Oz.

[Dale Bradly]

Aliexpress lists them as ASP. Interesting that the manufacturer keeping the seperate brands. I wonder if Magnum will also return.

Aliexpress also has one of the Evolution styled models back.

[Martin Harris - Moderator]

12 minutes ago, Andy Stephenson said:

I'm trying to see what the difference between the two versions of the .108 2 stroke would be as the SC108A-S at 733g and the SC180AR at 1530g that's more than twice the weight for the same capacity. There's not much in the descriptions to justify this, although I think someone had boobed because it says this equates to 0.04Oz.

 

Isn't the 180 nearly twice the capacity of the 108?

[GrumpyGnome]

Brill.

 

I have an SC 91FS still going strong after decades..... been in quite a few models, all original, except the carb, which broke when I tried to see if a kit built W4 would fly through a copse.

 

Being a heathen in my younger days, I just bunged fuel in it, flew, put things away, repeat several hundred times....

 

And in every club I have belonged to, at least one person has told me "SC are rubbish". 

[Brian Cooper]

Yayyy, best news in a long time. 

I haven't checked the prices yet but it's good to have the engines back. 

[Brian Cooper]

Hmmm, I have just seen the prices. . They are all about 30% too expensive. 

[GrumpyGnome]

EVERYTHING is about 30% too expensive.........😏

[Engine Doctor]

8 hours ago, Andy Stephenson said:

I'm trying to see what the difference between the two versions of the .108 2 stroke would be as the SC108A-S at 733g and the SC180AR at 1530g that's more than twice the weight for the same capacity. 

Err 108 is approx 16 .5cc while the 180 is 30cc . This could possibly explain the extra weight 😉.

[Robin Colbourne]

1 hour ago, GrumpyGnome said:

EVERYTHING is about 30% too expensive.........😏

Having looked at J Perkins pricing, then Just Engines and Model Shop Leeds, there seems to be an element of 'wet finger in the air' when it comes to pricing.  In some cases it is pence difference, in others £20 or so.   There is always the possibility the price shown is a hangover from when they were last in, and when the stock actually arrives there will be a big jump in the displayed prices.
Hopefully other manufacturers such as Thunder Tiger will rejoin the fray and market forces will bring prices closer to what inflation only would have done to prices since they were last on sale.

What I would really like to know, is what factors have made Sanye, the SC, ASP & Magnum manufacturer, decide that there is sufficient demand to justify restarting production on this scale?

[Andy Stephenson]

10 hours ago, Martin Harris - Moderator said:

 

Isn't the 180 nearly twice the capacity of the 108?

Oops, must have misread that but it still doesn't explain why it only weighs 0.04Oz.

[John Wagg]

Good news and hopefully spares will be available again.

I have a few SC engines but the 2 strokes seem to be a bit finnicky on throttle set up.

The 4 strokes work well but I have a new 30FS ( new as in NOS.) that has had low compression from new.

 

Edited October 9 by John Wagg

[Engine Doctor]

6 minutes ago, John Wagg said:

 

The 4 strokes work well but I have a new 30FS ( new as in NOS.) that has had low compression from new.

 

Very doubtful if it will improve compression as the fault is usually due to the cyl head leaking through the valve seat inserts . You may now be able to buy a new head but no way to check if thats faulty as well . Low comp  equals lower power, poor idling and often difficult starting especially when warm. only benefit it they are unlikely to throw the prop.

Always check a new SC etc for comp when buying . Obviously comp wont be as good as when run but often they show no sign of compression whatsoever . 

[Martin Harris - Moderator]

My feeling is that it's usually poor quality and/or hardened O rings on the main needle that let these engines down.  I've tried to source alternatives but I'm yet to find a supplier that lists what appear to be square section rings in an appropriate size and circular section rings don't seem to work well.  Maybe the latest production might have addressed this shortcoming?

 

Does anyone have a genuine new O ring to check whether my square section ring theory is correct or this is just a consequence of rings taking up the shape in service?

 

One thing I haven't experimented with is slightly deepening/reshaping the needle's ring to accommodate a circular section ring - the correct width ones are too large to fit inside the bore and smaller ones don't seal well.

[John Wagg]

28 minutes ago, Engine Doctor said:

Very doubtful if it will improve compression as the fault is usually due to the cyl head leaking through the valve seat inserts . You may now be able to buy a new head but no way to check if thats faulty as well . Low comp  equals lower power, poor idling and often difficult starting especially when warm. only benefit it they are unlikely to throw the prop.

Always check a new SC etc for comp when buying . Obviously comp wont be as good as when run but often they show no sign of compression whatsoever . 

I would consider getting a replacement head for the FS30. I believe this is a known fault but not by me when buying it. Bought second hand but had never been used.

Actually it runs well but requires an electric starter to get it going. I have another used FS30 that has compression and doesn't feel that much different in power.

 

[Cuban8]

Good news indeed. OK the prices have gone up but at least the option is there to make a value judgement whether to buy or not. See on the Aliexpress site that a Magnum 120FS is available at a little over £200. Obviously, VAT and duty will need to be paid so not so much of a saving over a UK sourced item.

Whether the UK market is still up for engines like this considering how electric power has become mainstream now, only time will tell. They'll sell engines, but I guess nowhere in the numbers that were being shifted ten or twenty years ago.

[Don Fry]

Heavy lunch, whiskey, and impressing a PA with long legs. These things are not always a cold logic sort of thing. 

[Robin Colbourne]

The capacity of glow starters and r/c batteries is such that you can charge them relatively quickly, so you make a decision to go out flying on a marginal day in the small window the weather allows.  If you are charging big propulsion batteries for a large electric model it requires more planning and you then need to discharge the ones you don't use.

There is also the matter of the buzz one gets from starting and tuning an engine, or am I alone in that? 😊

[payneib]

15 minutes ago, Robin Colbourne said:

The capacity of glow starters and r/c batteries is such that you can charge them relatively quickly, so you make a decision to go out flying on a marginal day in the small window the weather allows.  If you are charging big propulsion batteries for a large electric model it requires more planning and you then need to discharge the ones you don't use.

There is also the matter of the buzz one gets from starting and tuning an engine, or am I alone in that? 😊

Both the exact reasons I prefer IC. 

 

Not only do I have to spend all Friday night after work charging batteries to fly on Saturday, if I don't fly that weekend, my flying sessions are so rare I have to spend the evenings of the whole next week discharging the things. My ignition and radio batteries (or glow driver, depending), are ready in 20 minutes, and I don't care if I have to bin a £7 2s lipo.

 

And I just enjoy engines. I like tuning them, I like the aeroplane noises, I like taking them apart and replacing bits of them, I like hand proping them. When/if toy aeroplane engines are entirely gone, I'll probably do project motorcycles or something with steam instead. 

[Paul De Tourtoulon]

1 hour ago, payneib said:

Both the exact reasons I prefer IC. 

I did my shoulder in 3 weeks ago in a fall, so no IC lately, 3 visits to the model field with my epp electrics these few days

and what a sad person it makes me, 🤢.

 

13h, what am I going to fly, 13h10 an IC in the car, with the nihm batteries hooked up to my Robbe Infinity 2

charger, 14h at the model field and all charged and ready to fly.

 

Even if it is a rubbish IC motor,( other club members rubbish engines ) it still puts a smile on my face twiddling with its settings.🥰