leroifort

with a .25 in the front....;

my "original wonder" is fit with a .15
I made a thread on rcuniverse when building it to ask opinions of other members about overpowering mine. I have been discouraged to do it more than I have been encouraged. Plenty of members tell me that the .15 version is the more "versatile". After several flights with it, my opinion is that a .25 with low pitch prop will sublimate the performances of that funy bird.
I won't destroy the nose of mine to change the engine, because the perfos with .15 are suficient for a small adrenalyn shot, but if one day I rebuild a normal wonder, the .25 will be in the nose

Johng I think you are the owner of a very sympathic little rocket

leroifort

curently I am sheeting the central section and instaling caps ribs on the top of the wing

leroifort

wing is unpin from the building board, tonight, i'll route ailerons wiring and glue the dowels suport, next sheeting...

leroifort

near my original wonder wing

leroifort

bottom wing leading edge sheeting instaled, wing resting weighted for 24 hrs. Tomorrow, I shuld have the engines, so I can start to think for the fuselages

leroifort

bottom sheeting completed and servos wires instaled

Unstable

lookin' good

I was looking at the sig site and thinking of doing onw myself (after the 10 billion other projects that I want to do)

leroifort

maybe wait my maiden flight report

Johng

My Feedback: (4)

I was the owner....

After the wonder sat in the corner for somewhere like 2 years, it just so happens that a young fella we fly with sometimes was looking for one. Sold it to him last weekend with OS25 FP, servos and Nicads for $50. Surprising thing was they just flowed some fuel thru it to break up the gummy oil, and cycled the pack a couple of times and flew it 4 times the first day he had it. Good to see it flying again.

It would be interesting to take 2 wonder kits and build a single 2x wing, with one fuselage and just enough e-power( maybe a zagi setup) for climb and see what kind of aerobatic sailplane it would be.

leroifort

started with the fuselages, I am gluing fuse doublers on the 4 sides and making the firewall.

I encouter a small unexpected problem


My right firewall will be glued 3 degrees right angle, but if y decenter the engine to have te propeler in the center of the fuse, I can't build the engine cowl around anymore, the clarance betwwen cowl sides and engine mount is too small.
so I will keep the engine in the center of the firewall, and the wole think will go 3degrees right

Maybe you don't understand me because of my poor english, but I understand myself and that's the most important for my mental integrity I think

Johng

My Feedback: (4)

As long as you don't listen to what your bottle of glue is saying, you'll be fine. :stupid:

Your english is pretty good. Most of the time I can tell exactly what you are saying.

leroifort

it's when the guy from the LHS said : "$350 man !!" that I completly realised that this will be a twin

leroifort

It would be interesting to take 2 wonder kits and build a single 2x wing, with one fuselage and just enough e-power( maybe a zagi setup) for climb and see what kind of aerobatic sailplane it would be


MMMMMM sound a good idea, but I prefer it as a pure glider, reaching altitude on the top of a senior ARF

Johng

My Feedback: (4)

I'm sure it would be an excellent slope soarer.

leroifort

yes, slope.......

Slopes are unexistant in belgium, belgium is flatter than a pizza box, th only oportunity I have to go in the slope with a glider is during too shorts hollidays in france, unfortunatly....

leroifort

I had to post this one before going to sleep

I should clean a little bit under my building board, it doesn't look very serious

leroifort

I am at work now, thinking of what will be the next with my wonder twin.
the nacelle spacing is done to clear 10 inches prop, that's big for .15
the .15 give the best perfos with 7 inches prop or less. I made those nacelles for an eventual upgrade to.25. Because of the clearance I have, I could make a central fuselage in the style of minflyer's drawing (see previous post).
Before doing that i'll go ahead in the building sequence to see what's hapening with the CG. My estimations shown that the plane should balance correctly with a 600 MAh battery pack instaled in one of the fuselage aft section.
I can always fly the plane without central fuselage and add it later for cosmetic improvement.
My choices to put the engines upright involve that I have not be able to shorten the engine nacelles to the minimum (because of the exhaust who have to clear the wing), a 45° or 90° engine positioning was more judicious.
The main reason for why I puted the engines upright is that I will handle that plane alone, I fly I fleet of small hand launched birds above a corn field next to my home when I don't have the time to go to the club to fly big toys.
So I want to keep the handling as simple as possible, For me the most easy position of a engine to put a glowplug igniter on it is upright.....
I am also thinking about the prehention device i'll put on the center of the wing, will be a kind of ergonomic stuff with sandpaper glued on it to avoid my hand to slip.

leroifort

tonight, I builded a wonderfull stab elevator assembly, including a plastic profile to route radio cabling from one fuselage to the other. I builded particulary light and strong and was very proud.

Unfortunatly when dry fit it on the plane, I realised that I made a small mistake (forgot to count the depht of one fuselage in the dimensions)

one evening lost.....

leroifort

Tonight, I am making some fuselage inside amenagement, and I make the 2 fins rudders assemblies (yes johng there will be 2 rudders).

It's incredible how the wood is from diferent quality from one kit to the other. In one the wood is perfect in the other it's awfull.
When I say awfull, this mean that I rejected more than 50 procent of it.
for example from one "standards fins" diecut sheets to the other there is a 50% weight diference

seems that since Hazel and Maxey aren't at the head of SIG anymore, quality of the wood is seriously decreasing, I am a old sig customer and to me diference is clearly visible

leroifort

here are the fin/rudder assemblies

they are made on the shape of the "standard" version, but they are slightly bigger

leroifort

here is the stab, it included a plastic profile to route wiring between booms, and is reinforced on the front with a small spruce spar, total lenght 34cm=13.4inch

leroifort

tonight I will drill engines mounts and build the two nose cowls and make the wingtips

after that it will be time to start ironing... Any color scheme suggestion welcome

leroifort

this morning, I weighted the plane. I can give you a good estimation of the weight of the plane without covering.

1350 Gr........

the plane will balance without extra lead

final weight will be around 1400 Gr, this mean 200Gr under my first prevision

needless to say I am happy

leroifort

that's how it was looking tonight before I went to sleep

Unstable

lookin' sweet