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Mar 05, 2012, 06:58 PM
ulpilotrmh
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Discussion

Stevens Aero S-POU! 2.4


This is not a build log, mainly because I'm ready for the maiden flight. I haven't flown RC since the mid 70's and wanted to get back in the hobby with something simple. The "Flying Flea" has always intriqued me and when I found the SA line of kits included two versions of it I was hooked. The kit just about fell together. Ya gotta love laser cut kits!

The only problem I ran into was with the RC system. I purchased all the recommended components and installed them as directed. Unfortunately the elevator/wing pitch control does not work. When I first hooked everything up, the "elevator" servo on the PC board went full aft and has stayed there since. Nothing I've tried has induced it to move. I have given up trying to use this function and have decided to fly the plane with rudder and throttle only.

The plane ballances where indicated on the plan and at the positions printed on the wing parts. it glides quite a ways in a straight line when hand launched and I'm confident I can fly it in my back yard or at a nearby soccer field.

The plane came out at 1.7oz. The advertised weight is 1.4oz. I covered the entire top surface of the wings instead of just the areas over the ribs as shown on the plans. I have lots of troubles handling this super lite film covering and gave up trying to do it as it needs to be done for the lower weight. I also added two 1/8" square balsa braces in the rear fuselage to support the sides. I was afraid of crushing the fuse since there would have been no support at the bottom of the fuse.

We're in for a couple of days of high winds. As soon as it clears I'll take the Flea out and see if I still know how to do this. I'll send pics befor and during the maiden.

This kit already impresses me so much that I've ordered the larger S-POU (300) version.

Russ
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Mar 06, 2012, 08:24 AM
Registered User
ulpilotrmh,

Have you solved the servo problem? You may have to send the brick back for replacement. If it's an AR6400, Horizon Hobby is pretty good on exchanges. Call them first.

Jim R.
Mar 06, 2012, 09:57 AM
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CorvetteC5's Avatar
FYI. Here is a thread that I and others have used to talk about the S-Pou! 2.4

https://www.rcgroups.com/forums/show...ighlight=s+pou
Mar 06, 2012, 06:14 PM
ulpilotrmh
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Quote:
Originally Posted by JRuggiero View Post
ulpilotrmh,

Have you solved the servo problem? You may have to send the brick back for replacement. If it's an AR6400, Horizon Hobby is pretty good on exchanges. Call them first.

Jim R.
Hey Jim,

I'm just gonna fly it throttle and rudder only. As I mentioned before, the plane glides well and straight. I had to glue the wing incedent in place and hope it works by adjusting the throttle. I don't think I'll have this problem with the larger S-POU! (300).

Much too windy today and tomorrow to test fly the plane.

Russ
Mar 07, 2012, 10:21 AM
Registered User
ulpilotrmh,

Good luck with rudder-only (and throttle).

I had the rudder servo on the brick in my Vapor jam hard over to the right, when I commanded full right at the transmitter (DX8). It stayed there, unless I rotated the spur gear with my fingers. And repeat. The solution was to dig into the menu and find throw adjustment. I reduced right rudder from 100% right to 80%. That cured the problem. You should try that on your elevator servo. Unstick the servo first, by rotating the gear, then apply limited throw adjustment.

Jim R.
Mar 07, 2012, 07:36 PM
Registered User
Steve Merrill's Avatar
Russ,

I just built the larger version (S-Pou 300). I'll post some pics later. 25-35mph winds right now, I don't think it can handle winds this high..

This was my first SA build. Very impressed with the kit.
Mar 07, 2012, 09:20 PM
Hi I am Mark & I am an addict
mthomas's Avatar
Hey there.. I agree with Jim. Please check your throws and see if that resolves the problem.

Keep us updated..

Mark
Mar 08, 2012, 04:37 PM
ulpilotrmh
ulpilotrmh's Avatar
Okay, to keep everyone up to date, nothing I tried would loosen the "Elevator" servo, so I removed the linkage and CA'd the wing tilt to what I hope is a flyable position. Altitude adjustment will be done with the throttle. Another cold front will pass thru this area overnight, so the winds will probably remain too strong for flying the plane. Will keep you posted.

The SPOU! (300) kit should be here tomorrow. If there's interest I'll start a build log.

Russ
Mar 08, 2012, 04:50 PM
Registered User
Steve Merrill's Avatar
Sure. Here's my 300 S-Pou completed. Not yet flown. AUW is about 7 oz. with a 3-cell 430mah lipo
Mar 09, 2012, 09:03 AM
Registered User
Steve Merrill,

That's a fine 300 S-POU. What's the motor and prop?

I have the UM S-POU, and I've flown it in an indoor basketball court. It took considerable time for me to get it trimmed out. It's also a bit too fast for my ancient reflexes.

Jim R...
...growing more ancient every day...
Mar 09, 2012, 11:16 AM
Registered User
Steve Merrill's Avatar
Thanks Jim,

The motor is the recommended, Suppo BL 1510-15. You can get it cheaper at:

www.rchotdeals.com.

The prop is a 6 x 4
Mar 09, 2012, 04:46 PM
ulpilotrmh
ulpilotrmh's Avatar
Well I have the fuselage and tail assembled and will start the wings tomorrow. I'll take some pics before I start covering.

For those who were looking for a comprehensive build log, I refer you to the following link that is of the build manual for this kit.

http://tinyurl.com/84msbbu

I am building the kit as shown in the manual with one exception (So Far).

I know the servo that tilts the wing protrudes to the outside of the fuse to simplify the control linkage and save a little weight. I intend to move the servo to the inside of the fuse. I have an idea of how I can do this and will document it when I get to it.

Russ
Mar 09, 2012, 04:48 PM
ulpilotrmh
ulpilotrmh's Avatar
Quote:
Originally Posted by Steve Merrill View Post
Sure. Here's my 300 S-Pou completed. Not yet flown. AUW is about 7 oz. with a 3-cell 430mah lipo
Nice covering job.

Russ
Mar 17, 2012, 04:03 AM
ulpilotrmh
ulpilotrmh's Avatar
Okay, the S-POU is finished! As soon as we have a nice calm evening I'll maiden it. It's almost always calm in the morning here, but there's always a very heavy dew.

The model came out at 1.59oz, almost .2 oz over weight! I don't see this as a problem, but I guess we'll see.

Russ
Mar 17, 2012, 02:37 PM
ulpilotrmh
ulpilotrmh's Avatar
In reading back thru the posts I noticed in #12 that I was wrighting of the S-POU (300) and not the smaller S-POU. I am building both at the same time and confused myself. Sorry.

Russ


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