atmycabin

My Feedback: (10)

Just finished my new WM Super Stunts. Converted it to a taildrager. This is a BIG and nice looking 40 size plane (for a stick), which is on of the reasons I purchased it. I had to add some light ply to support the rudder servo I moved to the rear. I wanted to move the elevator servo back also, but that would have required close to 6 ounces of lead in the nose to balance. Ready to fly (empty tank) the plane is at 6 pounds. The engine recommendations for most planes in tis weight range are in the 60s (2-stroke) or 90s (4-stroke). The manufacturer recommends a 40-size engine. Will my OS46fx with Tower muffler provide sufficient power for this 6 pounder? Please don't get me wrong, I purchased this stick to gradually ease into fun flying and have no intention to strap a Saito 100 to the firewall. I just don't want to crash on the maiden flight because I have insufficient power.

Thanks for your input in advance

Tony

jucava

Good engine, will do a lot of thing but don't expect hovering.

flying_frog

What kind of prop you thinking about using. I am using a 12x7 on my Hobbico 60 trainer (w/ an OS 61FX) and an 11x7 in my float plane (w/ OS 46FX). Don't know what length prop you can get away with but I would go with the max. length and pitch to get the extra power you may need adding that extra weight.

Its a great engine with a lot of power.

waagbuck

My Feedback: (1)

I have an os 46 fx on my world models super stunts 40, which I also converted to a taildragger. With all the servos in their stock location and using the stock pull-pull rudder, I put the battery at the front of the compartment and the plane balanced just fine. With a 12x4 apc prop, the thing will go vertical just about out of sight. It flies good with an 11x6 or 11x7 prop as well.

atmycabin

My Feedback: (10)

Thanks everybody for taking the time to respond.

I have been using a 11x6 APC prop with this engine. This combination worked well on my LT-40 trainer, which came in at close to 6 pounds as well. Prop clearance would allow me to experiment with a 12x4 eventually.

vicman

My Feedback: (10)

I did it with a 46LA and loved it! A 46FX will rock.
Do it and have fun!

jcflysrc

My Feedback: (50)

I had this plane too. I had a TT 42 on it and it flew trainer like. Not enough engine in my opinion. A 70 would do it right.