tele1974

Go ahead and post your prop data and I will organize them into a chart.

JUST POST YOUR PROP DATA...NO DISCUSSION JUST THE NUMBERS.

ol_seabee

I'm looking forward to real performance data on this engine

rmathews

My Feedback: (1)

Vess 18-6 8400 static Penz aircooled at 40 to 1 55 min. run time on engine.

ol_seabee

This is a thread about the Syssa 30cc

I'm guessing it will turn a 17/8

The DLE 30, since you brought it up, will turn a 19/8 with ease

I thought Vess props were rated with an obscure letter rating,, that is,, being possibly a 4 pitch or 5 pitch as easily as a 6 pitch for the A rated prop

get real

Some manufacturers give a "benchmark prop" size and "vess 18A" isn't very meaningful to me

All this time and nobody has run a Xoar wood prop on stock muffler???

rmathews

My Feedback: (1)

ol seabee,please read my post,I gave you prop size I'm running,no "A" or "B" the rpm and fuel and I did post Syssa info.As you object to some of my post I wish to ask why you posted DLE info. on the Syssa forum. Very sorry for being off topic. Rich

ol_seabee

I've never even seen a Vess prop but I did browse their website and all I saw was a, b or c rated props

So if the Syssa turns an 18/4 @ 8400 rpms with a pipe that is not very good and about all I get from your posting

I've stated plainly

Please, put a standard wood aerobatic prop i.e menz, xoar, jxf or hawk with the standard pitch for this size aerobatic gas engine which is 8 pitch or 10 pitch

Give rpm data with normal wood prop on stock muffler and a video with plane weight would be helpful imo

It will come out eventually

rmathews

My Feedback: (1)

olseabee,like I said in my post,I'm running a Vess <18-6>on my SAP180,it is listed as 18-6 under "sport props" on site.Check them out,great props.again slightly off topic. Rich

w8ye

My Feedback: (16)

Right now, the Vess is one of the more popular prop brands.


http://www.vesspropellers.com/servle.../25/Categories

18x6 wood propeller
18-inch diameter, 6 inch pitch wood propeller

The Vess A, B, & C starts with the 19" props

http://www.vesspropellers.com/servle...ops/Categories

Truckracer

My Feedback: (19)

read the Syssa thread. There have been quite a few engine runs in those pages. I'd like to point out that the DLE 30 came out a short time before the Syssa so more people got to run and fly them last fall before the worst of the winter set in. Due to cost and other factors, I'd guess there are many more DLE 30 engines out there period. You get the picture I hope.

Go back and read my posts # 1154, 1158 and 1167 starting on page 47 of the Syssa thread.

During my first day out with my Syssa engine back in November, I reported 8600 RPM using a 18-6 Xoar standard wood prop. Fuel was 40-1 Penz and my needles were set as described in my posts. Muffler was stock without inserts. I only got to run and fly the engine over two weekends and the only time I tached it was the first day out. It performed as it was advertised to perform and I was satisfied with the way it pulled my airplane.

For the record, the tach used was a old but recenlty calibrated, analog, expandabel range Royal Pro-Tach. Readings were confirmed by several other typical cheap Chinese digital tachs.

In those thread posts and a few others, I described things I both liked and disliked about the engine. Overall, it was a very nice, well behaved engine and I liked it. Then the bad weather set in and it has only graced my basement since. Kinda hard to fly with several feet of snow outside. So no more reports from me for a few more months.

ol_seabee

Not sure what you are saying

Are the letter ratings "left overs from times past" or the "Vess 18/6" ?

Why can't anybody post significant prop data,, this is not good imo

I've read the vess props are "special" props with a variable pitch for lesser powered engines

w8ye

My Feedback: (16)

SeaBee

I appologize for shooting over your head

Read it however you want.

ol_seabee

This seems to be the first CLOSE to appropriate data by Truckracer

** 8600 RPM using a 18-6 Xoar **

Still not sure why anybody would run a 6 pitch on a gas engine

I guess w8ye meant the "sport prop" rmathews is using as being " left overs from times past" since his statement followed that post

Sorry for the confusion

rmathews

My Feedback: (1)

My last word on subject till it warms here in CT.Vess 18-6 prop Penz aircooled 40/1 stock engine and muffler w/incerts mounted on Funtana 125 8400 w/Globee tach.Same day Todd Syssa's SAP180 turned Vess 18-6 8700 on my tach,don't know what fuel or oil. Rich

Truckracer

My Feedback: (19)

Not sure how to take your comments but ........

OK, 6" pitch ..... well maybe I want my lightly loaded plane to be able to land without floating down the runway at idle ....... or I don't need excessive speed but want pull instead ... or anyone one of a dozen different reasons.

Or just maybe that is the only prop I had on hand that was even close to the correct size when I ran the engine.

Gheeeeeze ........

Edit: On a larger engine turning slower speeds, certainly 8" or more pitch would be in order. But this is a 30 thread where engines are turning well over 8000 RPM so 6" pitch is not out of line at all. I can't remember but in my earlier posts in the Syssa thread, I think I may have commented that I thought the 18-6 was too small of a prop and planned to try larger ones. But weather had a say in that event and it will all have to wait until spring now. Of course, different types of airframes would also determine prop size. A regualr CUB is very different than one that is flown in a 3D or aerobatic manner just as a warbird is very different than a thick airfoiled aerobatic model.

Truckracer

My Feedback: (19)

Dang there rmathews, you should be out there collecting prop data so that everybody can be happy on this thread. Shouldn't matter whether it is winter or not ..... be hardy!

craigteffe

My Feedback: (24)

I have a Syssa on a 12 pound profile and Vess 18 X 6 at 1000ASL getting 8400 to 8500 RPM. Pulls that plane around very good, I do alot of hovering and so far so good I only have about 10 flights on it so far.

PacificNWSkyPilot

My Feedback: (19)

The way this thread is going, the info gleaned from it won't be any clearer than what comes from the Syssa Thread. You can't control the flow of info into the thread, and it may be labeled clearly that it is for prop data for the SAP180, but pretty obviously the DLE guys and others are not going to refrain....in fact already are not...from coming in and posting. That can't help but create a contentious atmosphere. Unless maybe a Mod agreed to constantly trim out unrelated (and therefore unwelcome) postings.

Or you COULD play Beach Boys songs while everybody brags about whose engine is faster, stronger, etc.

LOL ....sorry, I was just remembering my high school days. We all had wrecks, and just ask any one of us, we'd tell you every one of them went over 140mph....(in our dreams)! In truth, we were lucky to keep them running most of the time....

Anyway, best of luck with this. I know a lot of guys would like to start seeing some more independent data gathered.

Truckracer

My Feedback: (19)

[sm=47_47.gif]

captinjohn

A 18x6 prop really is not enough load for a DLE30...what does that tell you? The DLE will swing a 20x6 with ease...............

ol_seabee

18/6 = 17/8

So it probly turns a 17/8 normal prop with a stock muffler with a weak midrange and that is why everybody is using a "special" prop
lol... It's like I've stated about "all the others" .. i.e nothing special[8D]

Still look forward to real data using normal props just out of curiosity

I pretty much already knew though

what are the chances?

ol_seabee

I don't know why the DLE 30cc has soo much power either,, like Tired Old Man said,,,, but it does[8D]

Truckracer

My Feedback: (19)

I don't want a 8" pitch prop on my CUB in any diameter. I think a 19-6 or 20-6 might be in order though.

From all reports, the DLE is more powerful than the Syssa .... but I really don't care. They are completely different engines with different physical layouts. I could certainly see myself owning a DLE down the road but not quite yet. And it won't be mounted on the same type of plane the Syssa is on.

w8ye

My Feedback: (16)

There's been a lot of spoiler posts removed from this thread and likely some more?

mrbigg

My Feedback: (21)

I don't get why some people act like boobs. I would like to see some more useful info here instead of hostility. I dropped of the original Syssa thread a while back because of idle talk. Keep the numbers coming guys.

ol_seabee

According to MsgtRob on other Syssa thread,, quote:

I started with 7000 RPM's on the 18 X6 last measured at 7250. Temps on head were 120-150F during break in