Dick.....RCS have a new engine review on their web site over your name.The headline says RV 80cc but is the review on the new 35cc?Also appears to be at least one typo on the prop sizes.
I have been considering a pair of these for my Ziroli Twin Beech I have under construction.,but have been awaiting availabiltiy and some market comment...
Thanks.....Kevin

the Roto 35 -
nice engine very sturdy design - easy to run very good power - best props - 20x8 or a wide blade shorter prop that loads it into 6000 rpm range
I have run it on Mas Scimitar 18x10 - over 8000- that is not enough prop.
the little muffler is also strong and light and works!
Included alum beam mount is nice -but I would opt for a good maple beam setup in the Ziroli

Hi Dick and Kevin,

Dick I have a question for you regarding this engine, I scratch built a Midwest Extra 300 and it weighs 8.5 lbs with everything minus engine. I put this together fairly quick and I plan on using it as a 3D practice plane. My projected weight with this engine would be 13lbs.

What I want is a fairly inexpensive gas engine like the Roto 35 to put in it. Do you have actual flying experience with this engine and does it pull like a ZDZ being a rotary valve.

It seems like a nice light little engine, Lighter than the ZDZ 40, but does it make any tork or does it just rev. I could also go with the ZDZ 40 or 50 but the weight goes up and so does the cost, do I really need it.

I had a Fuji BT 32 in this plane and it could turn a 18-8 zinger at 8300 but it had no poop! If I put a 20-8 on it I would only get 5000 rpm. It would hover with the 18-8 but could not pull out. So I sold it, I like the look of the Roto. What do you think.

Any one else have an opinion! Thanks.

Roto 35

Just to let you [potential customers] know that this engine is now in stock!


David Garrison

RC Showcase.com
www.rcshowcase.com

What is the weight of this 35?

Joe !~)

The Roto 35 weights 3.6lbs with ignition and muffler, however the ZDZ 40 weighs 3.15 lbs with ignition, minus muffler, so if you add a pits style muffler you probably come to about the same thing.

After considering all the facts I think I might go with the ZDZ 40 RE and a small light Bisson inverted muffler. Not the best setup for power, but cheaper and it will hall a 13 lbs plane with authority. Not just that but the total cost would not be all that much more really! And at 13lbs this plane flys very light.

Any way I guess I just made up my own mind.