Online Community of Zenith Builders and Flyers
We got one right on here. Let me see if I can sort it out. I made contact with him a while ago. Here's a video posted here of his airplane. Notice the very cool airshock suspension. https://www.youtube.com/watch?v=ydyWihN9NcQ
Here he is: Landon Goudreau
For what it's worth, I would consider this route as well http://www.recpower.com/3702%20-%203%20cylinder%20-%202%20cycle.htm
Did you end up going with a rotax 670 in 701? How is it performing?
I'm considering similar powerplant as well.
I did install and use a 670 for a period of time. The climb and performance were ok. I switched to a 912 ULS and the performance is better yet, and the 912 uses less fuel and the dependability is much better. At least I feel better! I mainly switched to the 912 for the dependability of the 4 stroke. Hope this helps. For me, if I can afford the difference in price, the 912 is much better overall.
Good luck in your Build!
Brad, thanks for the reply!
While you had the rotax 670, did you take your plane on long flights? Any "high altitude" operation?
What were the biggest problems you encountered with that engine? I'm planning on a Warp Drive 70" three blade + 3:1 reduction. What propeller and gear ratio did you use?
I've read threads with mixed opinions about 670, but not many that were specifically installed on a ch701.
I would love to get as many details as possible :)
I will try to give as many details as I can recall for you to make a good decision.
I should mention I have had a Geo with a raven redrive in a 701 as well. Really did not like it. Heavy and poor performance in my experience. My opinion is that the 670 will work fine for scooting around and having fun. If I was going any real distance on a regular basis I would put in a UL 582 if I wanted a 2 stroke or save up and buy a 912 ULS. I also just installed a 912 that had the Zipper big bore kits installed. That is really a fun motor. It is super smooth and had a large noticeable power increase over even the ULS I had. The 670 was fun to fly, but took more maintenance and messing with to keep going.
Hopefully my opinions don't step on anyone's toes. I dont' usually post to the forums as I don't want to get the feed back if I should create a fuss. I hope this helps you with your project. I don't want to discourage you if you want a 670. I did it and it just was not the right combination for me.
Good luck with your project!
Thanks for this -- I've always wondered about a 670 in a 701 (I have a few parts of one mothballed -- for another day) and wondered what performance might be like on a light, truly stripped, utilitarian 701...
Do you still have the engine mount for the 670 ? Would you like to sell ?
Please allow me to jump in here......Building a 701 an considering the 670 as my engine of choice.