Kmot

My Feedback: (24)

Somebody throw a polish job on one of their Seidels!

Cherokee Flyer

L.

radial1951

Cybertom

I couldn't agree more. It's the engine in the plane that matters, maybe just the fact that it's moving, rather than static, especially indoors. Your Robart does sound nice, and of course is beautifully made. It's been in the air for quite a few years now, have you looked inside for corrosion from fuel residue? What procedure do you follow at the end of a flying day?

BTW, nice job on the Stearman, a lot of work and your build video really tells the story. Worth watching... http://www.youtube.com/watch?v=AeN-s...eature=related

Regards, radial1951

Kmot

My Feedback: (24)

Cherokee Flyer: I purchased the Microsens glow driver for my FS-400 radial because virtually everyone with an FS-400 that I saw on either RCU or Youtube that was using a glow driver, was using the Microsens unit.

I am very impressed with it. It works extremely well, and has made my FS-400 much easier to start.

I have not yet used my engine in a flying application, but those who have are all over Youtube.

kivisto

Super P; is that a great planes stearman??? if so how did you resolve the exhaust issue? Much trouble fitting the motor?

Cherokee Flyer

Kmot;

Where did you get it and about how much in dollars?

Thanks

L.

Kmot

My Feedback: (24)

I purchased mine direct from Microsens. Their order page is available in English and they accept Paypal. IIRC it was about $60 or so delivered.

http://www.microsens.at/home1.htm

Click on "SHOP" on the left side.

S.L.engines

I wanted to ask a question you all have friends and customers:
We are designing the new SL will be 200 or 250.

We thought of building a 200cc with the power of a 300cc with 9 heads with the same aesthetic SL150 engine.

How many of you think it is better to make a 9-cylinder with perfect reproduction, since most of the engines were nine heads?

Or do you think is better a 7-cylinder?

expect from all of you an opinion ...........

Thanks

Luigi

S.L.engines

Cybertom

S.L. Engines,

I don't think anyone would complain about a 7 or a 9-cylinder engine...Please just don't make a 5! I think what's important is that the engine must fit the power range of the projected aircraft being built.

Many people who built the Balsa USA Stearman years ago used the Moki 250 engine. I think this was because Moki didn't make a 150 engine at the time so builders bought what they could get their hands on. You have a 150 so I think you're ahead of the game.

I would look at the projected size of popular aircraft customers are building. For example 30% and 40% biplanes...the Air World FW190 and other large scale aircraft. If you make engines that fit the requirements of popular aircraft you can't miss!

77chickenhawk

A small twin row radial[sm=thumbs_up.gif][sm=thumbs_up.gif]

Ram-bro

My Feedback: (101)

how small?

77chickenhawk

I think the perfect size would be a engine that would suite the 1/5th to 1/4 scale people (which would be a great deal of people). a twin row radial with the diameter of about 8 inches or 200 mm's. that could be in the 50cc area, per row. so a total of about 80 to 100 cc's . would fit in a lot of war birds. and the torque it would make, you could easily swing a huge scale 3 or 4 blade prop.. the Solo prop guys would love the extra buisness..lol I know one would be on my want list if it could be sold at a fair price in comparison to the new Sedel engines

aww heck I would want a twin row radial even if it was in the 70 to 80 cc range. actually this size could be a hotter ticket.. imagine a Sedel 35 times two?? 70cc's- Sweeeet! !

stevesak

My Feedback: (27)

I've always wanted the Seidel ST-14-26, and later the ST-14500, but It wrenches my stomach to see the 6,500 Euro price tag that's associated with it. A twin row 70cc would be nice, but a twin row with the traditional 10cc cast heads would be even better.

Of course, I say this as a collector, vs. someone trying to fit it into an airframe.

stevesak

My Feedback: (27)

On another note, how do you all feel about the $3500 price tag on the new OS 7 cyl?

Personally, I'm going to wait it out because of how the last OS release went (The IL300 Diastar). This one hit the market at $2500. I bought mine from another collector shortly after it was released and thought that I was getting a good deal at $2200. Apparently they weren't selling at Tower, because after a while, they lowered the price to $2300, then later to $1900. Eventually it went back up to what it is now.... $2300. Lastly, one just sold on eBay NIB for $1505, so this sort of tells us where the market is really at. It was supposed to be a limited production engine, but here we are a couple years later, and they are still in stock.

Does anybody else see the same thing happening with the FR7-420??? $3500 seems very steep when we consider that the FR5-300 was selling for just $1500 a year and a half ago. It was $2500 a few months ago, but now it is selling for a strangely calculated $1662.06. With the prices at tower changing so drastically and rapidly, It's hard to lend any credence to their business model for this type of purchase.

SJN

SL engines, please make a V-12, that fits the composite arf mustang and spitfire, and that size planes.

Ram-bro

My Feedback: (101)

but are guys buying them to fly or collect? I bought my ASP magnum for $400 and they are now selling for right around $900, but I bought mine to fly.

77chickenhawk

NO DOUBT

77chickenhawk

I would fly the snot out of it..

nilsreinert123

What makes the OS 7 better than the Seidel 770 ?

S.L.engines

Thanks for fast response Cybertom,


I agree with you, some customers are already mounting on the SL150 FW190 Airword so soon you will have wonderful video. I myself am about to mount a FW190 for a client with full tank of petrol and oil. Our SL 150 it will fly very realistically. Indeed, it has superior traction you maximum 21kg 23kg then perterà in vertical flight without any problems with the sound very nice.

Among the three months I've finished and tested for this customer and when you send personal videos.

Hello and thanks to all who are responding to me!

Thanks again ....

S.L.engines

Hi SJN

It would be very nice to do an engine so it would be my passion.
I love the Spitfire MK14 12 versions and I have made my dream and make an engine like that, but I think that it would not market because the cost would be too high.

Hello

SJN

ahhh.....it cant be more complicated than a radial engine :-)

Someone has to be the first to market a V-12 engine.......think of all the customers

S.L.engines

Since reality is more complicated ....

2 cam shafts on the head, liquid cooling, circulating water pumps and oil. Small compressor in 'aspiration.
No cost too much ... but for now I think maybe in 10 years ... maybe for an engine so now would not be enough for 8000 euros ... which does not contain any.

77chickenhawk

you wouldnt need to have a 4 cam engine.. you could modify the design to be a single over head 2 valve engine. but the cost as you said would still be threw the roof..


BUT,, what about a similar V8....? lol

check out this video. if you look at this engine . use the bellhousing side of the engine ( reversing the engine) to attach a under drive for a prop make a engine like that but just a tad bit smaller.. this engine is 6 inches wide. but to tall with the supercharger.. the non supercharged engine makes 12 hp this one is in the 15+ area.

http://www.youtube.com/watch?v=qqp99...layer_embedded

http://www.youtube.com/watch?v=aWIWx...eature=channel

http://www.youtube.com/watch?v=4FpWb...eature=channel

You could stuff that in a 1/4 scale mustang or P-40 or a Spit

Cybertom

S.L. Engines,

I think you have already differentiated your engines from your competitors because your engine has 7-cylinders and is very scale. I don't think anyone is selling a 9-cylinder GAS radial so that would be very unique and you are correct that many aircraft had 9-cylinder engines.

Don't forget about making exhaust rings for your engines. Most modelers find the task of creating a good quality exhaust ring to daunting a task to undertake themselves. They often feel that any ring they create won't match the quality of the engine they purchased. They are also afraid of damaging the engine in the process of making the ring. We expect the engine manufacturer to supply it for us. If you do this you will sell many more engines.