Hello...wondered if anyone out there has tried the Zen 90 with an old OS 61 RF-P? I know it'll be less power than the YS 91, but I thought I could fly it with the OS until I get the YS 91 later in December. Any thoughts, experiences, advice?

Thanks

To enjoy the Zen90 to its fullest extent, install a YS120. I have a YS120 in mine though I have read about others using a YS140.

The Zen90 will weigh between 8-8.5lbs depending on your harware installation. a 61 will fly it, but with lesser authority.

I use YS91s on planes weighing around 6-7lbs max.

Hi there. Thanks for your advice. I shall consider the 140 idea (120 no longer available). However, I was only planning on using the 61 until I got the YS (travel issue - lhs doesn't stock and ordering may be a problem). Now I wonder if there'll be a lot of work involved in refitting it for the YS when I do get it. May be best to just get the YS first.
Thanks

Hi Ken,

This is KC [Sg Buloh flying field]. Welcome to RCU!

I had a Zen 50 with a Saito 72 on it and it was only marginal in the power department. I seriously doubt the OS 61 will be sufficient for anything beyond flying circles. Since you are into pattern, I would think a 120 size four stroke is more suitable.

Flying this weekend?

Hey KC! Fancy seeing you here! Missed you at the field last Sunday. But yeah, I just ordered the YS 91 FZ from Singapore Hobby Supplies. Oh well, in for a dime in for a dollar. Yep, weather permitting I'm there this Sunday morning. Aiming to progress to the Intermediate schedule next year. I think I'm on schedule as I'm feeling pretty comfortable with the Sportsman one. See you then.

Cheers,
Ken

I have YS90 in it, EXCELLENT choice in my opinion.

Yep, thanks! Can't wait for it to arrive. Gonna be all digital servo (except retract and throttle). Finally a decent plane to practice pattern with...dang. If only I were back in NSRCA District One! I could clear some space for trophies... Now I just gotta find a store that sells 14x10 APC prop. Actually, this will be my first four-stroke experience. I don't know anything about setting valves after the first hour/50 flights, maintenance, etc. and I'm kinda worried about that.

Ken

Ken
Call performance specialty and ask them any questions you may have. They are very nice people.
Isaac