1: 3.25 scale MG19a Steinadler

[cw]

Time for a new project...!

This is a proper glider with bent wings, the MG19a...

I must first of all than Vincent for letting me use his CAD drawings for reference: this has made life a lot easier. The construction will be extensively modified of course: 1: to suit my style of construction and 2: because the model will be nearly twice the size. I started cutting wood yesterday morning and,[img]

as you can see, progress has been good...

1st, a dry fit to see how it will look





Now the fuselage side is pinned to the board






Cutting the slot for the joining reinforcer between the front and rear ply sheeting




This is the joining piece, left over from the planking...




The planking contiues...

[Orionis]

This is another high-speed building thread!

[de Schaetzen Harold]

Dear Chris,

Please reduce your building speed.
I need first to upgrade the speed of my PC!

Harold

[Paul ELLIS]

I should have invested in masking tape and balsa when I had the chance.

[loopingfred]

[cw]

It is always good to remove the fuselage half-shell from the board...



Even better to make up the other side...

[Paul ELLIS]

Chris

Will you be flying it at the week-end?

Vas-tu le voler ce week-end?

Paul

[cw]

Paul, je ne c'est pas...peut etre il pleut...

(That's it...my only schoolboy French!)

[Paul ELLIS]

Félicitations Chris, tu parles bien français.

(Trois fautes)

[plu ronan]

tu deviens un vrai francais paul

[cw]

The planking continues...



Now the hard bit is over...!



Steaming the 1.5mm plywood for the top of the rear fuselage...



Starting to look like a proper fuselage now...

[loopingfred]

Hi Chris,

Quick question for you... You are using a kettle to steam the plywood.. Is it efficient with that lenght and thickness ? Very good idea! One to keep for the next project ! (and handy for tea in the garage )

(Question pour Chris. Tu utilises une bouilloire pour former les planches a la vapeur. Est ce que c'est efficace ?)

Fred

[cw]

Fred, tea is no problem...my workshop is next to the kitchen

Steaming plywood is not very efficient, I get perhaps 25% of the shape I need, but it's enough to make trimming and glueing the ply much easier. The 6mm x 6mm Ramin longerons in the fuselage steam much better: you can get nearly all of the required shape...


La vapeur de la bouilloire avec le ctp n'est pas tres efficace, j'obtiens peut etre 25% de la forme que je veux lui faire, mais c'est assez pour le collage/découpe. les baguettes de ramin en 6x6mm se forment beaucoup plus facilement a la vapeur de la bouilloire, et il est possible de leur faire prendre toutes les formes que l'on veut...

[loopingfred]

Yeah, kitchen close to the garage too The builders must have been modelers !

Thanks for the tip Chris !

To shape the ramin, how do you proceed ? You have a few seconds to work it out or you have a bit of time ?

[cw]

Here's a photo I took earlier...

This was taken after the steaming process. Ramin is very bendy when hot and wet, so yoiu have plenty of time to get in, do the business. and then let it cool down. Gloves are a very good idea

[cw]

Whilst the planking of the fuselage is being completed, it's time to make a start on the stab...




Drawing centre lines on everything helps to see if it is all straight



Masking tape and pins are essential for the sheeting process (1.5mm balsa)

[Laurent Beldame]

Hello Chris

An other perfect building made with frenetic rythm..The tradidional teapot is not forgotten, ramin or not ramin

L

[cw]

Laurent, have you had any success with your flycam...?

Tonight is a big night...the the temporary formers have been removed before adding the GRP

Using the power file to clean up the inside of the fuselage...



Ready now for the fibreglass

[Paul ELLIS]

Salut Chris

I would like a Power File like that

Je voudrais un Power File comme ça

In the UK on offer at Axminster Tools for £39.95... (€47)

En Angleterre un offre spéciale de Axminster Tools c'est €47

In France €99.99 at Mr Bricolage!!!!! (£84.69)

En France €99.99 à Mr. Bricolage!!!!

Unfortunately the postage from the UK takes it up to £55

Malheureusement avec le courier de UK c'est €65

Is there anyone here who has seen a Power File cheaper in France?

Est-ce qu'il y a quelq'un ici qui a vu un Power File moin cher en France?

[cw]

Paul, I've just noticed that Machine Mart, where I bought the powerfile, have an export service...

http://www.machinemart.co.uk

+44 115 956 5555

[Paul ELLIS]

Thanks Chris, I'll check them out.

I was just surprised that they were so much more expensive in France (not usually the case)

Paul

P.S. I checked with Machine Mart and they're asking £52.86 (€62.47) plus postage

Looks like it's going to be Axminster tools

http://www.axminster.co.uk/product.asp?pf_id=720128&filter_cat=&am.....le=1&jump=0

[cw]

Before we can complete the rear of the fuselage the stab must be built.
Now it's time for the elevator...




The elevator is made over-size to be sanded back to shape later




The hinges must be supported in the stab with wooden dowel. The dowel is wrapped with masking tape first to preven splitting whilst being drilled...



Now the dowels are glued into the stab...



Once hinged up, the elevator can be sanded back flush with the stab...


Final shaping of the tips is left until the end...




Et voila, ready for the finishing touches...

[Paul ELLIS]

Excellent progress as usual Chris

How deep have you made the elevator shroud?

I think I made mine too deep on the Minimoa (about 12mm) hence the problems I had trying to recess the elevator deep enough.

Paul

[cw]

A difficult thing to measure afterwards Paul, but I guess around 10mm

Meanwhile, the rain it rains, the wind it blows, the cold goes up your trouser legs...perfect building weather!

Time to beef up the cockpit aperture...




Now to apply the polyester filler...



As usual the nose block is made up from filler, but with some lead built in to get the ballast as far forward as possible



Now the skid has been attached...



And the cockpit aperture is now very strong...!

[de Schaetzen Harold]

Dear Chris,

I notice good building activiy this WE.
Now it is time to call the house keeper and specially to activate your vacuum cleaner.
Or you need to put a new breathing mask.
Best regards.

Harold

[cw]

Harold, if I use our new vacuum cleaner to remove the dust, my wife will have something to say

[cw]

It is the weekend again, hooray...

The tailplane will be set up to rig and connect up very quickly and easily.
The 2 square brass tubes will be set in the fuselage, but first we must experiment to find the optimum set up...




Now to check it out in the fuselage...

[cw]

The elevator pushrod is made up from 12 x 6mm Spruce, reinforced with 6 x 10mm balsa




Two servos operate the pushrod with an aluminium connecting plate. There is a slot over one servo arm so that if one servo dies, the other can give 50% of the movement...




Another view of the pushrod in the fuselage

[cw]

Time now to continue sheeting the fuselage: thin card is used for a template. Pressing down with a thumb causes the edges to show up on the card to give the correct shape...


Now the shape can be transferred to the ply (CTP?)


And now the ply on to the fuselage...

[cw]

Work continues at the rear...meanwhile, the fuselage is now fully sheeted in CTP