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kiwilama's blog
Posted by kiwilama | Aug 21, 2010 @ 06:33 AM | 4,914 Views
Here is the latest config for my EP100

Motor 4500kv 28g outrunner
Turnigy 10amp ESC
Blue Bird 306bb servos on cyclic
Futaba S3154 digital tail servo
Skookum SK-720 3 axis gyro
JR 2.4ghz remote Rx
Align Trex 250 42mm tail blades

AUW with hyperion G3 450mAh 2cell battery is 201g

Still playing around with throttle and pitch curves
Posted by kiwilama | Aug 15, 2010 @ 04:35 AM | 4,950 Views
Here's my Gaui EP100 with H300C body and 3 blade head

I've been flying this for about a year with a Skookum SK-360, AR6100 Rx and Quark gyro on the tail - but I decided to clean it up a bit and fit the SK-720.

Flies well - the head speed is a bit low at 2500 rrpm but I get a comfortable 5 mins with a 450mAh 2 cell hyperion battery. I'm using 3400kv Trex 250 motor on 2 cell. The tail rotor could do with higher rpm as I loose tail rotor authority now and ago - just have to lower the colective to get the rrpm back (just like the real thing)

AUW 221g
Posted by kiwilama | Jun 17, 2010 @ 01:21 AM | 7,730 Views
I was a bit worried about the amount of watts I was taking from the Turnigy C3530-1100 motor, so I swapped in a Turnigy C3536-1100

I also replaced the Turnigy 30amp ESC for a 40amp

Motor weight went from 71g to 103g and the prop size went from APC 11x5.5E to APC 10x5E.
Way more power than I need. With this power increase and the STOL kit I have a winning machine
Posted by kiwilama | Jun 04, 2010 @ 04:21 PM | 6,973 Views
Mixed aileron droop with flap on my 185 and flew it at the park yesterday

Had the ailerons come down 7 deg with full flap - takeoff was noticeable shorter
Landings where interesting - very little aileron authority - had to use lots of rudder to pick up a dropping wing.
This will be good when I fit floats

Its raining today so I'll make some wing fences to finish the robertson stol look R/STOL

I programed the rudder to mix 110% with ailerons when the flaps were lowered - to help pick up a wing
I also have the drooped ailerons assigned to a switch so I can turn this feature off as when I fly at home it is almost always crosswind and I need aileron authority as well as the drag of flaps for the steep approach over the trees

Got to love the JR DSX9

Well I was playing around with mixes and realized that I could have the ailerons reduce the amount of droop on the last notch of flap - cool - this fixes my crosswind problem -
Posted by kiwilama | May 26, 2010 @ 10:31 PM | 7,508 Views
Some of the output from this mornings flying

Turnigy C3530-1100 turning a APC 11x5.5E prop
Turnigy 30amp ESC and a 2200 40C battery
I think 390 watts is a bit much for a 71g motor
Posted by kiwilama | May 21, 2010 @ 08:36 PM | 5,924 Views
Very easy to assemble - just stick the tailplane on, connect the elevator up and slide the wing on.

The supplied electronics are ok.
It will climb at about a 60 deg angle with a hyperion 450 G3 battery. The servos have very low resolution but centre well. The ESC is a turnigy 6amp which I have lots of and never have had a problem - 2 of mine are hooked to motors pulling 8amps.

So I put 2 batteries through it stock and then took the servos out and put 4 3.8g bluearrow servos in and a 6.7g 3900kv outrunner in.

Stock it had one 8g servo operating the ailerons - so I put 2 3.8g servos in for flaperons.

Now the machine will climb vertical, but its not fast (need to find a higher pitched folding prop)

I've set my radio up with the throttle stick operating the variable camber wings - and my throttle on the left shoulder lever

Over all I nice little plane which takes up very little space in your car and doesnt mind wind - got 36 minutes out of a 450mAh battery this morning - combination of power and slope in the light winds

Bonus it comes with a complete spare plane
Posted by kiwilama | May 17, 2010 @ 05:25 AM | 5,891 Views
Put 6 batteries through the 185 and 2 through the Super Cub this morning.

Magic morning, had to stop flying for 20mins while a fog bank rolled through
Posted by kiwilama | May 10, 2010 @ 04:32 AM | 6,240 Views
Just got my CTC up to speed for the indoor season

Little mod I did was to get rid of those little plastic pushrod keepers - I kept losing them when I put my CTC together.
What I've done is used a bit of carbon rod and heat shrink - which slides up and down
Posted by kiwilama | May 10, 2010 @ 02:55 AM | 7,538 Views
here's some pictures of the flap setup on my cub

I'm using a HXT500 (so far so good)- but I might change this to a HXT900
Posted by kiwilama | May 09, 2010 @ 07:01 PM | 6,081 Views
After seeing the Multiplex Fun Cub - I had to fit a bigger wheel on the back of my cub

and a few more pics of the 185
Posted by kiwilama | May 09, 2010 @ 05:34 AM | 6,527 Views
I didn't like the weak tailgear (the full scale one is known to break tail spikes too), so I fitted the Dubro scale tail gear.
I also did'nt like the top hinged flaps - as I was only getting 25 deg and the full scale one will do 40 deg with it's fowlers.


Had to reduce the travel of the flap servo down to 60% to get 40 deg flap - and a bonus less friction
Posted by kiwilama | May 06, 2010 @ 10:51 PM | 6,348 Views
Here's it with my cub

Slightly bigger 1.4m vs 1.2m and heavier 910g vs 1130g
Posted by kiwilama | May 06, 2010 @ 07:04 AM | 8,237 Views
Well I've now flown my 185

Flies great - but had to fit 3000mAh 3 cell to balance the model with an AUW 1130g
With this big battery the wing loading low enough for small park flying (38.3 gm/dm2)

In the end I used -
2 x blue bird 380 max metal gear servos for the rudder and elevator.
2 x Hitec HS-65HB servos for ailerons
2 x blue bird 306BB servos for flaps
turnigy 30amp ESC
turnigy C3530-1100 77g BL motor
turnigy UBEC
JR 921 2.4ghz 9 Rx

The build was straight forward - with clear and simple instructions with lots of photos
With all models I build I give them a good going over - the ply servo tray and the ply wing mount pulled out with very little pressure - an easy fix with some epoxy - all the other ply mounts held up to some hard yanking

I put bigger 3" tyres on as the stock ones were to small and narrow for my liking

Overall the model flies very well and slows down with the flaps more than my super cub. The turnigy 3530-1100 turning a APC 11x5.5E has more than enough power for short takeoff and steep climb outs

I will post more pictures after the weekend
Posted by kiwilama | Apr 30, 2010 @ 03:40 PM | 6,530 Views
Well I picked up my 185 yesterday
I'm very impressed with the quality. Great panel lines and the ply crutch and motor mount is nice and thick (not thin like World Models aircraft)

Now just deciding on gear -
2 x Blue Bird BMS-380MAX servos for rudder and elevator
4 x Blue Bird BMS-306BB for flaps and ailerons
30amp turnigy ESC
Thrust 20 motor - (really want to use this motor - but the diameter is a little too big) - I have a turnigy 3530-1100 coming just in case

Will start building this evening
Posted by kiwilama | Apr 25, 2010 @ 11:29 PM | 6,294 Views
Pictures from Sunday - thanks RCFlyingKiwi
Posted by kiwilama | Apr 23, 2010 @ 03:42 AM | 6,301 Views
Well I was happy with the APC 10x5 E prop that I was running - off in about 1 meter on grass and 4 on the water. But I thought I'd try the APC 11x5.5 E.
Same pitch speed just more thrust and amps.

According to Drive Calculator -
10x5 E = 984g 49km/h 14.4A 159.3W
11x5.5 E = 1160g 50km/h 19.2A 213.1W

+176g +1km/h +4.8A +53.8W

First flight off the grass - it nosed over and I was to slow on the throttle - no damage.
Next flight she was off and climbing vertical. Made me very nervous - being a full scale heli and fixed wing pilot, I'm always aware of engine failure. What if the motor coughed at 3m in a vertical climb

Anyway - it was an interesting test - will try the big prop on floats this weekend
Posted by kiwilama | Apr 19, 2010 @ 03:51 AM | 6,462 Views
On hyperion 160mAh battery it need less than 1/2 to hover - only problem I'm running out of right pedal
Posted by kiwilama | Apr 19, 2010 @ 03:04 AM | 6,449 Views
Well just stretched the tailboom a bit and sanded down the root of the rotors so they would fit the mSR grips.
And guess what? - It works - hovers at 1/2 throttle when before you needed 3/4 throttle, I'm very pleased

The fix for poorly performing mSR's with scale bodies

I have only done one flight so far but looks good.
Posted by kiwilama | Apr 18, 2010 @ 07:44 PM | 6,950 Views
more pics

Has got the Cusker RC blades grips and swashplate fitted
Posted by kiwilama | Apr 18, 2010 @ 06:51 PM | 6,614 Views
Here's some pics of my MD500E

The mSR notices the weight but its a lot more stable.
I think I need to give the 500 a hot section as its flying like its at MAUW

Saw pictures and read on a German web page where someone had fitted the longer blades off a Esky Chinook and lengthened the tail boom by 5mm -
Creating a MD530F - and that solved the lift problems

So picked up some Chinook blades and I'm going to make myself a MD530F

Safely flying 6 mins with the hyperion G3 160mAh batteries