I have (2) of the Low wing trainers at home. I have installed the parts to make them have dual aileron servos instead of the single servo in the center of the wing. I will be putting my trusty ASP .61 2 stroke in one of them. The other I am thinking of going E powered.

[link=http://www.nitroplanes.com/nilosuaetr60.html]Low wing trainer 60[/link]


Lets say I get this [link=http://www.hobbypartz.com/mo604brmo.html]MOTOR[/link]

Would that be enough for this plane? What prop would be good. I have a setup for (4) 2650 3S lipos right now. I was planning to use it in a high wing trainer. I am also looking at a 6s 5000 lipo pack.

I know I will need to replace the stock metal landing gear. They are to soft and I would need to make them longer for an E prop to get enough clearance from the ground. I am also thinking of putting retracts in it or E power or maybe both.


Thanks.

Dru.

Let's say that the plane comes out around 8lbs or so AUW when done using that motor.

That will give you a good 150 watts per pound ( and that motor WILL take well over 1200 watts in bursts ) so your continuous capacity will turn that plane into a balistic flyer... who needs wings? ( This is verified below... )

The web page says the motor is good for up to 7 LiPo cells so you should shoot for that to obtain the stated 1200+ watts that way, or you can use your 6S configuration with a larger higher pitch prop.

FYI: I find that the Monster Power motors will sustain far greater power than the advertising says.

For instance I run the Monster Power .25 which is listed for 3 cells, using 4S packs and I am quite happy with the performance.

However if you increase the voltage you must decrease the prop size to keep the draw down.

Anyway, assuming 6S...

3.7v x 6 = 22.2 volts

22.2 volts x 400kv = 8880 RPM

For an electric that is a low rotation rate, but still workable.

You'll want to prop the motor to get around 7600 RPM or so with the plane on the ground.

The prop will unload in the air to get the final RPM's.

So 1200 watts is about 1.7 HP continuous...

ThrustHP reports that at 7800 RPM a 15x10 APC prop produces around 1.7 HP and an airspeed of around 73 MPH with 9.24lbs of thrust!

That would make the plane fly at a decent speed and thrust.

You can play with the numbers in ThrustHP ( free download ), but you want to keep things around 1.7HP for your calculations.

Thanks.

I do not want a 3D plane but one that will do a short take off roll and a close to vertical climb out. I am looking at what my old ASP will do. When I had my first LWT I enjoyed doing VERY slow fly bye's. this plane just hangs on a 10 mph head wind and floats by.

Looking for a nice easy plane to cruise around.


Dru.

It will boil down to how you want to prop the plane.

Drop the diameter and pitch and you'll slow the plane down, while increasing flight times.

Looks like I will be ordering it after I recover from Christmas. I will be putting my dollars into savings to get it. I have priced it out with the stuff in a shopping cart. With (10) of the 5010 servo's, motor, 60 amp ESC, (2) 6s 5000 mah lipo's, 6s charger and a UBEC it comes to $350.00ish. That is about the cost of just the batteries a year ago.

I like my glow planes but an E powered plane is nice too. No tuning issues, no dead sticks, I just like the plug and go of it.


Dru.

What will be nice is that you can prop it down to fly the plane in a more relaxed manner, then prop it up later to make it more speedy.

It sounds like you'll have fun with it.

The electronics will also transfer to a whole range of different planes.

If you go with retracts, make sure you use the spring music wire type gear.

The loop spring absorbs the impacts that would pull out a normal retract.

I really enjoyed the first one. I spent many tanks doing touch and goes. This plane flies so slow it is amazing. A guy at the field called it a balloon. It will just hang on a breeze. I bought (2) of them for the discount and also so I could have 1 E powered and the other nitro powered.


Dru.