Jilles Smits 1/3 scale SG38

Let us all watch your new project progress.
Post Reply
User avatar
Peter Balcombe
Posts: 891
Joined: 18 Mar 2015, 10:13
Location: Clevedon, North Somerset, U.K.

Re: Jilles Smits 1/3 scale SG38

Post by Peter Balcombe » 22 Jan 2019, 21:47

Stephen,
I will let you know once I have found someone to do it for me ;)
(Probably gas though)

User avatar
Peter Balcombe
Posts: 891
Joined: 18 Mar 2015, 10:13
Location: Clevedon, North Somerset, U.K.

Re: Jilles Smits 1/3 scale SG38

Post by Peter Balcombe » 27 Jan 2019, 16:26

Rudder pedal assembly now painted & assembled onto the forward fuselage assembly (bottom box assembly) although a touch-up of paint is needed to complete.
View of securing nuts & tow release pushrod also included.-
Note that the pre-bent tow release rod can be removed whilst the rudder assembly nuts are fitted if required.
The missing section of side skin also needs to be put in place before the two side fixings are put in place.

The 3mm ply rudder pedals and heel support strips are still to be fitted.
Attachments
Rudder Assembly fixing.jpeg
Rudder assembly fixing
SG38 Rudder Assmbly.JPG
Overall rudder assembly

User avatar
Peter Balcombe
Posts: 891
Joined: 18 Mar 2015, 10:13
Location: Clevedon, North Somerset, U.K.

Re: Jilles Smits 1/3 scale SG38

Post by Peter Balcombe » 27 Jan 2019, 21:22

Stephen,
The results of the silver soldering are shown in the previous post with the assembled rudder pedal assembly.
A gas set with soft flame was expertly used by WMSA clubmate Steve Vincent (many thanks Steve) and it all went very well until the last joint.
I was pleasantly surprised that the soft flame didn’t disturb the work whilst being heated & the liberal coat of borax around the joint kept everything clean until the solder flowed.

Murphy’s umpteenth law decreed that the small brass pieces for the last joint deformed when heated, so had to be remade ;)

StephenB
Posts: 71
Joined: 26 Dec 2018, 08:45
Location: Hungary

Re: Jilles Smits 1/3 scale SG38

Post by StephenB » 27 Jan 2019, 21:30

Thanks for the update Peter, I must say it looks an exemplary job - in keeping with the rest of the build.

I think I will need to do some research on methodology prior to training myself up on the "blow torch".

User avatar
Peter Balcombe
Posts: 891
Joined: 18 Mar 2015, 10:13
Location: Clevedon, North Somerset, U.K.

Re: Jilles Smits 1/3 scale SG38

Post by Peter Balcombe » 31 Jan 2019, 11:43

Fuselage parts now all joined to make a 6ft long item!
The seat has also been made and the Wilson pilot tried for size.
(Still need to fit rudder pedal plates & heel rests)

Control surface cable sheaves can now be fitted on the fuselage sides, together with battery box, switch and BEC within the wing root area.
Attachments
SG38 Fuselage assembled.jpg
Fuselage assembled
SG38 Pilot in seat.jpg
Pilot tried for size

User avatar
RobbieB
Posts: 512
Joined: 07 Mar 2015, 22:22
Location: North West
Contact:

Re: Jilles Smits 1/3 scale SG38

Post by RobbieB » 31 Jan 2019, 12:43

Looking well Peter, no hiding place or room for error with all that 'air conditioning' :lol:

StephenB
Posts: 71
Joined: 26 Dec 2018, 08:45
Location: Hungary

Re: Jilles Smits 1/3 scale SG38

Post by StephenB » 31 Jan 2019, 15:21

Very impressive, the pilot looks fantastic!

User avatar
Peter Balcombe
Posts: 891
Joined: 18 Mar 2015, 10:13
Location: Clevedon, North Somerset, U.K.

Re: Jilles Smits 1/3 scale SG38

Post by Peter Balcombe » 14 Feb 2019, 14:43

Work has continued over the last couple of weeks to skin the tail feathers and make a start on the wing skinning.
The pics below show first wing assembly to check that they will plug together, and also to check that the root ribs are parallel.
Also shown are a couple of first overall assembly shots.
Rudder pedals now fitted & only bits left to initially fit are the control wire sheaves below pilot seat and on top tail boom rail.
Attachments
SG38 Wings bare_small.jpg
Initial wing join check
SG38 First assembly1.JPG
First assembly1
SG38 First assembly2_small.jpg
First assembly2

SOTIRIS
Posts: 23
Joined: 09 Dec 2018, 13:24
Location: ATHENS

Re: Jilles Smits 1/3 scale SG38

Post by SOTIRIS » 17 Feb 2019, 13:58

Good,job!!!!!!!!!

User avatar
Peter Balcombe
Posts: 891
Joined: 18 Mar 2015, 10:13
Location: Clevedon, North Somerset, U.K.

Re: Jilles Smits 1/3 scale SG38

Post by Peter Balcombe » 06 Apr 2019, 16:42

Over the past few weeks I have finished the wing skinning and stained all of the skins and exposed wooden parts.
(Note use Wood stain, rather than Wood Dye as this gives a more uniform colour on both ply & balsa, even when the balsa has been sealed to prevent it fluffing up when wetted with stain).

I decided to apply the Ceconite covering using dope (rather than the manufacturer's recommended adhesive) as I needed to get a uniform print-through of the underlying skinning & cap strips.
Therefore, i first applied a base coat of dope to the parts & then laid down a line of masking tape to define the boundary between the covering and exposed wooden finish.
The Ceconite covering is then laid in position and dope applied to attach it to all skinning/cap strips, rubbing the dope into the weave as necessary with a fingertip to ensure that the stained skins show through everywhere.
(I managed to recover lighter patches on the very first side by gently rubbing these areas with a cloth dipped in cellulose thinners to reflow the dried dope).
The Ceconite is doped over the edge of the masking tape. When dry the covering is trimmed around the edges and then along the masking tape line using a sharp blade. The covering can then be removed from the masking tape and this then carefully removed to leave a clean edge between the covering and stained wood. See photos below.
Attachments
Rudder covered_small.jpg
Rudder
Elevator stained_small.jpg
Elevator ready to cover
Elevator covering_small.jpg
Elevator covering in position
Elevator covered_small.jpg
Elevator covered

Post Reply