New plane for os 70 surpass
#1
Thread Starter
Junior Member
Joined: Jul 2002
Posts: 8
Likes: 0
Received 0 Likes
on
0 Posts
From:
I've got a spare os 70 4-stroke and am looking for a new plane to put it in....any ideas?
I was thinking something along the lines of a zen 50 (ok with a 70?), cap, extra, edge etc...
Thanks..
I was thinking something along the lines of a zen 50 (ok with a 70?), cap, extra, edge etc...
Thanks..
#3
Member
My Feedback: (3)
Joined: Mar 2002
Posts: 97
Likes: 0
Received 0 Likes
on
0 Posts
From: Cranston,
RI
Check out http://www.nextcraft.com/rcpp_extase01.html . I use an OS 70 on mine. Hovers at %50 throttle. 5 lbs. dry.
#7

My Feedback: (4)
No pics on file at the moment, sorry. There's several threads here on this plane you might search for. Mine is very straight forward though. What I did change out was some of the hardware though, for DuBro stuff. It's much nicer, like the pull-pull system. DuBro makes a slick system that works excellent on this plane. DuBro also makes a real nice set of servo arms, I've made a habit of installing on all newly built planes.
The flight of the plane is very stable. Go with the minimum throws to start with, as this plane can be made to roll and pitch so fast you can't count them. Being as small and decently light I'm sure has alot to do with it, as well as having some very generous control surfaces. The CA hinges are good, I just installed those as I would any others.
The landing gear is very decent as well for pavement. I can't tell you about grass though. I've heard it's not as well suited for grass. Go with the 180degree retract servo though, as this is the only one that works. Unlike the WM Mustangs, that you can use a standard servo for retracts, this one demands a retract servo.
I mounted my 70 inverted, and used DuBro(yes DB again, what can I day, the stuff is decent when used correctly) remote glow, and have the glow connection on the side of the plane. I used stock exhaust though, instead of a header and pipe. The upgraded exhaust just was to much dough$$$ for me to justify here on a $200 plane. Heck the upgraded exhaust was going to cost more then half the plane. So,,,I opted for stock and it works great, and cost nothing. If you havent seen the upgrade, you wouldn't know the diff anyways.
I run an APC 12x7 or 12x8 prop and that gives unlimited vert with this plane, it's not extreme fast, but still moves out good, and I know will leave a 2-stroke in the dust on the vertical uplines, it just keeps going like a tractor pulling a plow. The engine tachs just a tad over 10k with these props. Remember, the plane was only specced for a 53 4-stroke, why I don't know(other then liabilities), but it's a great match for the 70 or so size 4-strokes.
Go with an aluminum spinner though. I went through about 5 of the plastics, as the OS 4-stroke didn't seem to like the plastic spinners, and just kept spitting them off.
I used standard servos here, although they were very fresh, and only slightly used. A 1400mah pack provides the juice to the electronics. When installing receiver, I went direct with everything to receiver(NO Y-harness's), so I would have options of mixing/set-up. I've tried flaperons and airbrakes, and found the best set-up is nothing at all. The flaperons are nice, but you just don't seem as hooked up, the air-brakes, definately bust the lift to the point that you better be ready and practiced for the plane to come down. I was fortunate I didn't have any problems, or ever have a hard landing, but I see the potential is there, and don't need the risk. Much better just letting the plane settle in, nice and gentle like. It does slow down very nicely, provided you give it a chance to bleed off the speed. I'm going to end this here, as this is longer then I planned already...just do searches, and you'll find stuff on it here. I've had mine since they came out, a bit over a year ago(spring 2001 I think), and my Zen is doing very well, still looking like new. You'll really like it, just have a bit of respect, as this little package has some big things inside.
The flight of the plane is very stable. Go with the minimum throws to start with, as this plane can be made to roll and pitch so fast you can't count them. Being as small and decently light I'm sure has alot to do with it, as well as having some very generous control surfaces. The CA hinges are good, I just installed those as I would any others.
The landing gear is very decent as well for pavement. I can't tell you about grass though. I've heard it's not as well suited for grass. Go with the 180degree retract servo though, as this is the only one that works. Unlike the WM Mustangs, that you can use a standard servo for retracts, this one demands a retract servo.
I mounted my 70 inverted, and used DuBro(yes DB again, what can I day, the stuff is decent when used correctly) remote glow, and have the glow connection on the side of the plane. I used stock exhaust though, instead of a header and pipe. The upgraded exhaust just was to much dough$$$ for me to justify here on a $200 plane. Heck the upgraded exhaust was going to cost more then half the plane. So,,,I opted for stock and it works great, and cost nothing. If you havent seen the upgrade, you wouldn't know the diff anyways.
I run an APC 12x7 or 12x8 prop and that gives unlimited vert with this plane, it's not extreme fast, but still moves out good, and I know will leave a 2-stroke in the dust on the vertical uplines, it just keeps going like a tractor pulling a plow. The engine tachs just a tad over 10k with these props. Remember, the plane was only specced for a 53 4-stroke, why I don't know(other then liabilities), but it's a great match for the 70 or so size 4-strokes.
Go with an aluminum spinner though. I went through about 5 of the plastics, as the OS 4-stroke didn't seem to like the plastic spinners, and just kept spitting them off.
I used standard servos here, although they were very fresh, and only slightly used. A 1400mah pack provides the juice to the electronics. When installing receiver, I went direct with everything to receiver(NO Y-harness's), so I would have options of mixing/set-up. I've tried flaperons and airbrakes, and found the best set-up is nothing at all. The flaperons are nice, but you just don't seem as hooked up, the air-brakes, definately bust the lift to the point that you better be ready and practiced for the plane to come down. I was fortunate I didn't have any problems, or ever have a hard landing, but I see the potential is there, and don't need the risk. Much better just letting the plane settle in, nice and gentle like. It does slow down very nicely, provided you give it a chance to bleed off the speed. I'm going to end this here, as this is longer then I planned already...just do searches, and you'll find stuff on it here. I've had mine since they came out, a bit over a year ago(spring 2001 I think), and my Zen is doing very well, still looking like new. You'll really like it, just have a bit of respect, as this little package has some big things inside.
#9

My Feedback: (4)
You might keep the cowling off of it for initial adjustment. I did notice mine needed adjusting to get it running/transitioning smoothly. The low-end adjustment seems more sensitive, but once set, I havent' touched it.(over a year now I think).
The cowling will have to be cut out to clear the valve cover. Just a small square is all I did though. You'll see what I mean when matching the cowling to the plane. Hope this helps.
The cowling will have to be cut out to clear the valve cover. Just a small square is all I did though. You'll see what I mean when matching the cowling to the plane. Hope this helps.




