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Messages - mat2verre

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1
PSS / Mitsubishi J8M "Shusui" - Topp Rippin
« on: February 16, 2014, 20:03:50 PM »
Good evening,

Coming back from the slope, everything went right: she flies! :D

I had to set the elevator trim up and I had to pull slightly on the stick during all the flight, I think that the balance is forward, I'll have to remove carefully some lead to analyse the impact on the glider's behaviour.

It flies fast but can slow down gently. The silhouette of this PSS is very realistic especially in lowpasses, just missing the walter exhaust sound!!!

Unfortunaterly we didn't enough time to take picture, the rain was becoming stronger and stronger  :(  

A+

Mat

2
PSS / Mitsubishi J8M "Shusui" - Topp Rippin
« on: February 15, 2014, 22:19:23 PM »
Hi there!

Long time without connecting to the forum.
The Shusui is now ready for the maiden flight.
Weight is about 760 grams, with pushrods & balancing (I had to add 15grams of lead).

This leads to a wing loading of 48.8 g/sqdm, I targeted 50 g/sqdm: Yeeeah!

Tomorrow I hope I'll be able to make the maiden flight (y'a qui qui vient à la pente???).

See you soon!

Mat

3
The French Corner / Pilat cet été
« on: July 07, 2013, 21:07:24 PM »
Bon ben moi j'ai pas grand-chose en état, ou du moins il faut que je fasse quelques petites ou grandes visites pour que ça vole...

Et y'a plus beaucoup de place entre les 2 sièges auto à l'arrière de ma vouature! Va falloir envisager sérieusement le break!

Biz @+

Mat

4
Scale / 1/3 Scale Ka3 - Another one! With a difference :)
« on: November 19, 2012, 23:29:35 PM »
Fred,

Your daughter wants to ride her pink unicorn!!!

Unrig the Ka3, leave the living-room and go back to the workshop!!!

Good job.

A+

Mat

5
PSS / Mitsubishi J8M "Shusui" - Topp Rippin
« on: November 04, 2012, 16:00:02 PM »
Quote from: "erwan"
Ca fait quelle charge alaire??


Wing loading is approx. 46g/sqdm... not so bad!

But I still need to balance, she will take a few more grams to the end.

A+

Mat

6
PSS / Mitsubishi J8M "Shusui" - Topp Rippin
« on: November 02, 2012, 19:44:55 PM »
Model is covered, it weights 730g (not balanced, without pushrods for elevons):





A+

Mat

7
PSS / Mitsubishi J8M "Shusui" - Topp Rippin
« on: October 25, 2012, 09:07:06 AM »
Quote from: "johnfireball"
Lack of gloss is caused by painting in damp conditions. It's referred to as "Bloom". It can be improved with paint rubbing compound.

Thks for the analysis... I was worried to spray my paint outdoor, by 10°C... Next time I'll try to find another solution.

Quote from: "JohnPearson"
Very nice model, looks great. Post the video of the first flight please!


Thanks John.
In fact first flights will be done without rocket motor, to set up balancing & elevons travels. I also might have problems to get powder engines because I cannot buy it in France... :-(

And another couple of picture of the second color spraying:


And after masking tape removal:


Next step: covering!

A+

Mat

8
Scale / Top Rippen Scale Gliders
« on: October 24, 2012, 08:59:08 AM »
On my Me163, lot of delay for production (about 3 month), wings are OK (good global quality, sheeting is OK, leading edges are glued and sanded) but fuselage was medium quality (parting line with gap, bubbles on gelcoat, few lacks of resin on glassfiber).

But prices are nice enough to get a 4m glider for a reasonable budget, for people who enjoy spending time in the workshop.

Which model do you wish to buy? ASW19 1/4 scale seems to be a good work base to build a 4-meter ASW20 or a C101 Pégase.

A+

Mat

9
PSS / Mitsubishi J8M "Shusui" - Topp Rippin
« on: October 23, 2012, 11:19:09 AM »
Quote from: "Happy Days"
What marvellous work Mat, 8)  I admire your abilities! :clap:  (I wish I could build models like that. :!: )

Keith


The last picture is only here to show the scheme I wish to copy, but I didn't build this static scale model!

A+

Mat

10
The French Corner / M339
« on: October 23, 2012, 08:37:14 AM »
Ha ben encore un kit qui sort de chez Fred???

A+

Mat

11
The French Corner / mon pil
« on: October 23, 2012, 08:36:11 AM »
C'est jouli ça vient d'où???

A+

Mat

12
PSS / Mitsubishi J8M "Shusui" - Topp Rippin
« on: October 23, 2012, 08:15:47 AM »
Here are pictures showing the structure elevons and the wing fairing, after a hard work of sanding/filling (difficulty came from the different hardnesses of composite, epoxy bond, obechi sheeting, polyester filler & gelcoat) and spraying of two primer layers:

The leading edge fairing is now OK:


And yesterday evening I sprayed two layers of yellow paint:

And after removal of masking tape:

Good news: I managed to spray without making any paint drop! 8)
Sad news: paint is not as gloss as I wish, it looks satin, although the aspect is slick... I don't understand why!  :(

Uh, I just forgot to show you the paint sheme I choose:


(It is a semi-scale, that's why the canopy - from a Me163A - does not correspond to the model showed above... If I have a few time I'll try to mold a new one)

A+

Mat

13
PSS / Mitsubishi J8M "Shusui" - Topp Rippin
« on: October 22, 2012, 14:47:42 PM »
Quote from: "rogallo"
Salut Mat,

 the model looks well, Is it for the Macon next year perhaps?

Ralph


Yes I hope...

Will you be there?

Mat

14
PSS / Mitsubishi J8M "Shusui" - Topp Rippin
« on: October 22, 2012, 13:43:28 PM »
Well, here is another construction from a froggy.

You may not know the J8M Shusui, but many people interested in airplanes heard about the Me163 Komet. Shusui is indeed the Japenese version of this aircraft.

I started the building of the kit on december 2011, on a peaceful part of the web... Here is the picture of the kit (from topp-rippin):



Wingspan is 95cm, so small...

I wish to use it as a PSS, but I would like to keep the possibility to motorize it with a rocket-powder engine, like on this video:
[youtube]http://www.youtube.com/v/DMm-hZ7h-vE&feature=player_embedded[/youtube]

Construction began by fitting the canopy on the fuselage:


Then, I built a rudder in structure to make this glider more realistic:


I also opened wing root to insert the wing in the fuselage:


And after assembly, not a very good surprise:



Wing fairing is not acceptable in these conditions... I'll need to put some polyester to fill in this gulf!

On benoit (the pope) advices, and to lighten as much as possible the glider,  I decided to dig the lower surface of the wing (sheeting is made of Obechi) and the fin:


Now the wing fairing is done, elevons have been cutted off and re-built in balsa structure. Primer has been sprayed, I wish I'll be able to paint it this week. New pictures upcoming soon!

A+

Mat

15
The French Corner / grunau baby
« on: September 28, 2012, 15:10:09 PM »
T'as bien reçu mon mail fred???  :D

A+

Mat

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