Jaguár of Paco Modell

[OliverPrinz]

Hallo Beat,

If you will prefer reading in German ... have a look here: rc-network.de

Much success with your Sperber,
Oliver.

[AlainB]

Beau méccano
Alain A+

[Beat]

Hallo Oliver

Danke für den deutschen Link ins RC-Network.
(Ich spreche einige Sprachen, doch deutsch ist am einfachsten )

Viel Spass beim Bau des schönen Modells.
Meine Aufmerksamkeit ist dir gewiss.

Gruss,
Beat

[OliverPrinz]

As posted earlier the arm or the mechanics of the elevator should be made out of wood. But I want to have parts made out of fiber. A friend of mine (Thanks to Alex) milled these parts for me.




And another change: the iron axis will be fiber too. Look why: the 96mm steel axis weighs 2,4g, but a fiber axis 1m long (!) only 4,9g.






To align all (still loose) parts right, I've put them together, aligned well and applied just a single drop of cyanacrylate glue. Only for a brief fixation.




All parts unmounted again and sealed in with resin, ready to find there final place in "the mechanical box".






Good result which makes me happy

[OliverPrinz]

The end of the wing is pretty easy to do. Leading and trailing edges are pre-cut which makes it easy to glue the rips in right.
The lower spar can be prepared as well.




To align the end rip (the next one to the middle part of the wing) I used a meter. The right angle to the spar is predetermined of the spar webbing (right word? I'm not sure).




Different to the middle part of the wing, I've glued in all rips first and afterwards added the fillings. Good to do so because the spaces of the rips are predetermined by the leading and trailing edge parts.




The upper spar needs to be glue in well too.




Now endurance is needed: all spaces between rips I've filled with balsa blocks and sanded them down to be in the same shape as the rips. A lot of work but still worth it. Have a look:








Same thing for the middle wing.




The little stands ("feet") of the rips I've cut away.
Good idea of the constructor: just cut them off roughly, then sand them down to the "level" of the spar.




Let's celebrate the "roofing ceremony" of the wing the left wing is pretty much ready for cover!




Please be patient and stay with me, but now my next part of report will take a while. I will build the right wing without reporting.
So long, Oliver.

[Orionis]

Nice and quick building, Oliver!

[OliverPrinz]

Hi,
Time passes by so quickly, but at least the two wing parts are ready.





To glue the outer wing parts to the main wings I used a PUR-glue.
This sort expands while "drying" and fills out all gaps.
Nice to handle (but use gloves) and not so much rush as I expected.

[OliverPrinz]

It's quite easy to establish the rack for the fuselage cone
(if one keep everything straight and rectangular)






There is even a little stand for the end of the fuselage. Very good idea.
This way cone and end can be aligned really well (you will see later on).







Another nice idea is using tooth picks to plug the former onto the rack.

[OliverPrinz]

Using a few (12) pine strips the fuselage is coming up






the weight so far for the fuselage

[Beat]

Hallo Oliver

Wow! Das ging aber schnell!!
Ist bei Dir Material für die Rumpfnase im Baukasten dabei?
(Bei mir ist nix im vorahnden)

Beste Grüsse,
Beat

[OliverPrinz]

Hi Beat,

Please don't mind if I stay to English (for all international readers/followers).

Your're right, there is no balsa for fillings like for leading/trailing edges and nothing for the "nose" in the kit.
But this kit I would recommend for experienced builders only. And "they" have balsa pieces "on stock" (like me ).

Oliver.

[Beat]

Hi Oliver

Thanks for the advice. Sure I have some wooden blocks in stock
I just was not sure, if there is no wood included because my Jaguar box was opened and examinated more then once at the Retroplane event.
I will go with some pine block instead of balsa. Actually I didnt start (I have to finish my Rhonsperber first)
Thanks a lot for all your building advice, it will be of great use at the time.

Best regards and greetings to your stewardes
Beat

[OliverPrinz]

Gluing in the rips starting off the fuselage.
And again filling up the gaps with balsa.

[Anonyme]

The Jaguar will be surely an impressive beast in the air, quite a clean, neat and delicate work !

[OliverPrinz]

Having only pine strips will be not enough for a bit rougher landing. So there is the need of fill-ins between the ribs




Some hours later, all parts fit in with right angles to each strip ... good feeling




In the kit there is a mechanic for the tow-hook. It's a very nice thing, but it needs a servo too.






I'm going to save this weight in install a common hook.
Therefor I use a normal inbus tool and glue it in using resin.

[OliverPrinz]

To get good results for the cover it necessary to place some balsa strips onto the fuselage:




Unbelievable how much time this work needed:






... but it's done and the passage is very smooth. Ufff

[Orionis]

Still perfect building!

[OliverPrinz]

Next step: the nose, it should be made out of balsa.





But I did a mistake: I've tried to save balsa (which is totally nonsense!) and saved to much.
Result: during sanding a hole !!! This nose is useless

Ok. My fault. New nose.
Honestly, the curve of this kit-nose I do not like too much. Lets find a new shape:




Meanwhile my friend Emil convinced me to put much more effort into this part, I should build "somthing special".
Due to the laser-cut all parts have brown-black edges. Wouldn't it be nice having a nose again in brown-black and white? My investigation of internet brought up these kind of wood: wenge (millettia laurentii) + maple. Both available in 5mm (x100x1000).






Ohlala, this nose weighs 107g for this kind of glider having 800-900g lift-off-weight, no chance.
But still I kept on going, finding out how this sandwich-material can be handled. Many hours later, using just this rasp/file the weight dropped to 68g. Not bad, but still not good enough.




Using a little mill I stripped down "the interior space". What a noise and dust
Now the nose weighs 47g. Good enough? Let's give it a try.
To preserve the wood I varnished it with water-based sealing. 3 layers including sanding "in-between" the layers).
I'm pleased about this result

[Anonyme]

Lovely bicolor nose... and for all the work also..

[VincentB]

I like too your black and white nose
What is the model of your japanese saw? when I will be rich I will buy one

[OliverPrinz]

Salut Vincent,

These japanese saws aren't that expensive. Years ago I've bought a whole set of them.
I would recommmend at least this one: it's only 0,3mm thick Dozuki Universal Compact

A bientôt,
Oliver.

[OliverPrinz]

The tail unit was fix to the fuselage.
Wings and fuselage nicely positioned and aligned to it precisely.




Today is the day: work on wood is done

[Miguel Gil]

Great job, I really like the nose bicolor
A question for you or any other fellow who had done
  Is it possible to dye the balsa to get a similar effect?
Regards,
Miguel.

[Roger_Vettorel]

Superbe Oliver !
Très beau kit et parfaite réalisation
Moi aussi j'aime beaucoup le "black and white nose ".

Un peu d'entoilage et ça vole bientôt....

Viele Grüße
Roger

[OliverPrinz]

Salut Miguel,

[Clifton]

Very nice work and beautiful model. I like very much that such of antic models.

So good this idea for the nose. It looks very nice.

Philippe

[OliverPrinz]

Salut à tous,

Sorry for this delay in reporting. The next couple of weeks will be better.

The constructor has designed the nose to be removable for entering the fuselage. There could be some magnets holding the entire nose. But for me (and my fingers) this is not big enough. I decided to make an opening from the top (as usual).

First I had to double some parts of formers to be able to cut the strings for the opening.






Comment for those who want to do the same:
It would have been better to water all the strings, because if glued in without them being watered, they hold a lot of tension. As soon as you use your saw, they "jump back" into a straighter position which makes it difficult to keep them in a bend position.
I had to glue in a lot of additional braces to keep the strings in round shape




Using a rest of fiber and a bit of Paulownia wood I've created a "look for this opening.




At the end, there's a bigger opening to make it possible to see and manipulate everything in the fuselage.
Hope you like it

[Orionis]

[OliverPrinz]

Unfortunately there is nearly 100g of weight needed in the nose to set up the right point of gravity
This way the glider weighs (still without varnish) nearly 700g.

Here are some impressions of "my remote"




One of my favorites are pipes for the receiver antennas to keep them in a 90° angle and (of course) for protection and easy removability






Now it's time for the gas mask and lots of dope...

[Christian]

Magnifique

Christian