F4 Phantom blue angles

Hey Guys, Im looking for a 4-stroke,nitro, .26 or .30. Every where I looked, I could only find .40 and up. I know they make them,but where can I get one.

airraptor

My Feedback: (66)

Why are you looking for a smaller one? The weight is pretty close to the same as the Saito 40 one as they are all around 9-10 ounces

Hobbsy

My Feedback: (102)

I hope I'm not breaking the rules too badly here, there are no .30's for sale in the MarketPlace, here is one else where.

https://www.rcgroups.com/forums/show...30-four-stroke

Hobbsy

My Feedback: (102)

Their respective weights, FA .30 first.

the pope

if your after smaller theres the HP 21 and 25. Physicaly bigger than the OS 30 though put cool non the less .

Mr Cox

They don't make them anymore, that is why they are hard to find...

earlwb

Except for the HP .21 and .25 engines from MECOA, they quit making the .26 and .30 size four stroke engines. SAITO still makes the FA-40a engine which is the .30 bored out to a .40 size. Now you may still see them show up on Ebay from time to time or in the classifieds here in the forum too.

overbuild

Just Engines in England has a ASP 30 on their website . It looks like a old style OS 4stroke.

F4 Phantom blue angles

I was just curious about how small of a 4-stroke is made. Thanks for the reply

706jim

OS FS20 and Hp 21. I've seen smaller four strokes but don't think they were ever marketed in quantity. Think there was one about 0.099 in displacement but can't recall where I saw it.

earlwb

There is a Japanese guy who makes limited production runs of small four stroke engines as small as .06 cubic inch. He even made some twins, triples and inline four cylinder engines all using the .06 parts too. But the information is all in Japanese and no one outside of Japan has obtained any of the engines. So I assume he has only sold them in Japan over the years. But the web articles about his engines sure do make one drool with lust though.

Now also there are some super engine collectors and RC flyers in Europe that have some tiny four stroke engines down in the .020 or so size too. But these engines may be very limited in the numbers made. Their micro Cirrus inline four cylinder engines are awesome as well. They even made tiny micro sized spark plugs for them too. I have some 8-32 size spark plugs and these are still much larger than the spark plugs that their engines use.

see the .020 engine here in post number 1396
https://www.rcgroups.com/forums/show...4#post26247364

Hobbsy

My Feedback: (102)

A gentle word here, when the FA .40a was released Horizon claimed that that the .40a would sit in same space as the little .30, that was not the case. The .40a's foot print is about one half of a hole larger and requires hole stretching in the mounts.

aspeed

That .020 is really cute. A 4mm thread is pretty close to an 8-32" size. Wonder where you can find those? I think I would just run my 2 strokes really rich, and call them 4 strokes. :-)

Gizmo-RCU

My Feedback: (27)

THE OS 20 was a really weak engine, the 26 is much stronger by a lot! Both the Magnum/ASP and the Saito 30's are decent but not real power houses. I and friends tried them on Sig LT 25's, The Thunder Tigre 36 2 stroke was excellent on that plane. Mine was built with a flat wing. Fun plane until I killed it.......
Most of the small 4 strokes are good on scale planes not demanding a lot of power.

Hobbsy

My Feedback: (102)

http://www.microfasteners.com/home.p...ction=0&page=2

Hobbsy

My Feedback: (102)

The LT 25 and one of my Saito .30's is a favorite combination.

wcmorrison

My Feedback: (2)

Look on eBay. ASP (and Magnum), OS and Saito market four stroke engines in less than 0.40 size. The most common was the 0.30. I have one new in the box but not ready to sell it yet. You would have to get a used one now days, as fewer and fewer glow engines are made. You might check Just Engines which is a UK engine dealer (www.justengines.uk). They give excellent service to the US.

F4 Phantom blue angles

Ha!Thats a good idea!

airraptor

My Feedback: (66)

The saito 40 will spin APC 10x7 around 11,000 or more

aspeed

The glow plug is 4mm, not just the bolt. I have never seen such a thing.

earlwb

There is a fellow in the USA who makes or used to make small 8-32 threaded spark plugs. Reginald makes his own 4mm threaded spark plugs. I think he even has a engine that uses smaller spark plugs than 4mm too. But actually, one could make their own spark plugs. Once one figures out how to do it, then it becomes fairly simple. It just takes some time of course.

Some of my 8-32 and 1/4x32 spark plugs.

aspeed

I could make them except for the ceramic. I would rather have glow plugs. Merlin, or Al used to redo elements on glow plugs at one time.

blw

My Feedback: (3)

I think Saito still makes the FA-30 but they aren't sold in the U.S.

buzzard bait

I think that was true till recently, but now when I go here... http://www.rcjapan.net/index.php?mai...21a78vej4bo305 ... no more 30. You can see that the 56 and 91 are gone now too. Also the exchange rate must have really improved for Japan because the prices seem pretty high.

blw

My Feedback: (3)

I think you are right. I looked at hobby shop sites in the UK and can't find any FA-30's listed anymore. Sad.