GliderIreland - Ireland RC Forum - Flying Model forum in Ireland

Gliders => Scale => Topic started by: Fred on August 03, 2012, 15:52:43 PM

Title: Pilatus B4
Post by: Fred on August 03, 2012, 15:52:43 PM
Alright, time to build something!  :D

Got a fuselage for the B4 a little while ago from Frederic (fully paid in Guinness and various other beverages that make you happy after a few...) and if you know Frederic, it is not really a bargain!  :mrgreen:

Anyway, time to get some projects moving forward!
WS is about 4.3m, and plan is to have it finished by the end of the month...

Starting with the wings... I could not get some foam cut for the wings, so I took an executive decision, and draw a plan quickly to have it done in wood instead...
Easy wing to draw, took me about an hour of work. Then Laser, and 20 minutes later, got a nice kit for the wings  :D

(http://www.gliderireland.net/forum/images/uploads/Fred/IMG_1412.jpg)

(http://www.gliderireland.net/forum/images/uploads/Fred/IMG_1413.jpg)

(http://www.gliderireland.net/forum/images/uploads/Fred/IMG_1414.jpg)

(http://www.gliderireland.net/forum/images/uploads/Fred/IMG_1415.jpg)

(http://www.gliderireland.net/forum/images/uploads/Fred/IMG_1454.jpg)

Materials are a mix of 3mm plywood and 3mm balsa.
Assembly is straight forward and really easy.
Spar is 8x8, false LE in 5x5 pine.
Sheeting will be done in plywood (0.4mm).

Started Wednesday, and 1/2 wing is ready to be sheeted, just waiting for the wood to arrive. Second half should be done next week and hope to have them fully sheeted next week end!
Well, that's the plan anyway!

(http://www.gliderireland.net/forum/images/uploads/Fred/IMG_1477.jpg)

(http://www.gliderireland.net/forum/images/uploads/Fred/IMG_1478.jpg)

Nothing special, have more photos of the build, I'llpost them later  :D
Title: Pilatus B4
Post by: mario on August 03, 2012, 17:40:08 PM
cool, ça vole pour falaise :wink:  :mrgreen:
Title: Pilatus B4
Post by: Fred on August 03, 2012, 18:25:47 PM
C'est l'objectif :)
Title: Pilatus B4
Post by: mario on August 03, 2012, 18:31:49 PM
cool :lol:
Title: Pilatus B4
Post by: erwan on August 03, 2012, 21:36:27 PM
wonderful ^^
Title: Pilatus B4
Post by: alibodin on August 07, 2012, 21:39:52 PM
Look forward to  seeing how this goes. Will there be a short kit for the complete model, please? Need a builder for prototype kit?

Alistair
Title: Pilatus B4
Post by: Fred on August 08, 2012, 11:32:48 AM
Thanks Alistair  :D
No kit planned, but don't tempt me! I have enough projects for the next 20 years or so!  :P
I can put the plan for the wings to download anyway, if someone is planning to build a B4 this size using the full size wing profile...

Anyway, did a bit more work, mainly cosmetic, all ready for sheeting now.

Airbrakes slots are now filled with... airbrakes  :P

(http://www.gliderireland.net/forum/images/uploads/Fred/IMG_1516.jpg)

Fuselage is prepared to get the wings

(http://www.gliderireland.net/forum/images/uploads/Fred/IMG_1517.jpg)

And all put together to have an overall look at the beast :

(http://www.gliderireland.net/forum/images/uploads/Fred/IMG_1518.jpg)

Not bad for a few hours of work (about 4hrs of build so far...)

So, next step is to glue the wing joiner's tubes in the wings, and start the sheeting.
Plan is to have the wings fully sheeted, ready for the servos this week end  :D
Title: Pilatus B4
Post by: mario on August 08, 2012, 11:35:51 AM
:clap:  :clap:
bon je retourne bosser
Title: Pilatus B4
Post by: Alan_Perse on August 08, 2012, 12:04:37 PM
Looks great :D :D . Will it be ready for the September Fly-in?
Title: Pilatus B4
Post by: Fred on August 08, 2012, 14:23:57 PM
Thanks Alan  :D

Plan is to have it finished for the Falaise Aerotow Meeting, the 15th of September.
If still alive, will of course bring it at Mt L  :D
Title: Pilatus B4
Post by: mario on August 08, 2012, 17:22:51 PM
et au fait c est le meme fuseau :?:  :mrgreen:
Title: Pilatus B4
Post by: Fred on August 08, 2012, 17:55:03 PM
Nan, celui la, c'est un Made in Brive La Gaillarde  :D

L'autre, c'est un Rosenthal ou un Gewalt. Faut que je le descende  :D

Sorry, French talks about origins of the fuselage. The one I have is made by Frederic and his brother.
I also have another one, but from Gewalt or Rosenthal, can't remember,  in my garage  :D
Title: Pilatus B4
Post by: mario on August 08, 2012, 18:16:15 PM
c est pas grave :wink:
Title: Pilatus B4
Post by: Frederic on August 08, 2012, 19:45:01 PM
Hello,
Salut,

It's wonderfull !
Jolies les nervures en bois d'arbre !

Think you have strong wings with wood construction? I still think it takes much rigidity.
Tu pense avoir des ailes bétons avec la construction en bois ?
Je pense quand même qu'il faille beaucoup de rigidité.

Sympa le fuselage de chez Holland Models !
Title: Pilatus B4
Post by: Fred on August 08, 2012, 20:12:03 PM
Na, should be fine.
D box in 0.8mm plywood, fibreglass / carbone on the TE etc, should be more than OK  :D

Ca devrait le faire sans probleme normalement  :wink: . Coffrage en CTP de 0.8mm, du carbone sur le BF. Y'a pas grand en alongement, ca donne generalement de bon resultats sur des planeurs anciens. Je le fait juste pour faire de la petite voltige.

Et puis, pas le choix, impossible d'avoir des noyaux ici  :!:
Title: Pilatus B4
Post by: Fred on August 13, 2012, 10:14:33 AM
Ok, no photos, but a quick update.

Sheeting started on the wings. Almost all done!
Wings are looking good and light. Could not resist, and put the glider together. Looking good  :D

So, this week's plan is to finish the wings and make a rudder.
If enough time, do the stab mounting. So still on time for having this thing finished by the end of the month  :D
Title: Pilatus B4
Post by: Fred on August 20, 2012, 12:36:44 PM
Ok, so pretty much the last week for this build!
So far, all in time to have it done by the end of the month.
Winge sheeting is done.
Started the elevator mounting.
So, this week jobs are:

Servos in wings
Covering

Start the ailerons
Make the rudder
Finish the elevator mounting.

Plenty of time as they are all quick jobs to do  :D

Oh, and canopy should be with me soon hopefully  :D

I have to weight it at this stage, as the fuselage feels very heavy  :?: But I am really happy with the wings!

A few photos to give you an idea of the size (4.3m)

(http://www.gliderireland.net/forum/images/uploads/Fred/IMG_1578.JPG)

Not too small, not too big, perfect to bring everywhere with you  :D

(http://www.gliderireland.net/forum/images/uploads/Fred/IMG_1572.JPG)

Stay tuned for more  :D
Title: Pilatus B4
Post by: andrew wallace on August 20, 2012, 14:56:06 PM
nice bit of work Fred and that's a nice size of model  :clap:  :clap:  :clap:
Title: Pilatus B4
Post by: Alan_Perse on August 20, 2012, 20:46:19 PM
Great work Fred :D :D . Looks like a nice size. But are you not going to sheet the entire wing all the way back to the trailing edge  :?:  :?:  ?
Title: Pilatus B4
Post by: rogallo on August 20, 2012, 21:35:21 PM
Tres cool.... 8)
Title: Pilatus B4
Post by: Fred on August 21, 2012, 08:01:50 AM
Thank you all :)

Alan, sheeting will stop at the spars (D box), more than enough.
Title: Pilatus B4
Post by: Frederic on August 21, 2012, 15:49:06 PM
Hello Fred !

Geat job and very nice shirt !
 :clap:  :clap:  :clap:
Kiss my lord

Frédéric :wink:
Title: Pilatus B4
Post by: Fred on August 21, 2012, 16:23:35 PM
:lol:  :lol: Don't forget the nice smile too!!  :mrgreen:
Title: Pilatus B4
Post by: JohnPearson on August 21, 2012, 22:36:13 PM
Nice work fred, always liked the look of this glider :clap:  :clap:
Title: Pilatus B4
Post by: Fred on August 22, 2012, 09:16:21 AM
Cheers John  :D

No work done on it so far this week! Have the monster in law at home  :(
Title: Pilatus B4
Post by: Fred on August 28, 2012, 21:23:32 PM
Alright, small progress!
But that thing start to look like a glider! That need a bit of room to setup!

(http://www.gliderireland.net/forum/images/uploads/Fred/pilatus%20post%20entoilage.jpg)

For the wings, just the ailerons to be done and hook them up (airbrakes are in and setup)
Fuselage.. Rudder, servo tray, and still waiting for my canopy  :!:
So, lot of work still left, but not too bad at this stage for only 2 weeks worth of work  :D

Oh, and I am gutted!
Built a Fuselage jig to setup wing joiners etc etc... Drilled holes and so on.. Put the wings on the fuselage.. And not straight!(viewed from the top, other axis are fine) By 5mm  :!:  :!:  :twisted:  :twisted:
Checked the Jig, and looks like one of the side slided while the glue was drying, certainly because of the weight of the clamps  :!:  :!: Did not pay attention  :!:  
Jig now destroyed, and will be burnt at the next BBQ!!  :x

I use a floating key, so too much work to rectify it, I leave it like that for now, nothing that some white tape cannot hide!  :P  :D
Title: Pilatus B4
Post by: Happy Days on September 01, 2012, 00:25:39 AM
Quote from: "Fred"


Oh, and I am gutted!
Built a Fuselage jig to setup wing joiners etc etc... Drilled holes and so on.. Put the wings on the fuselage.. And not straight!(viewed from the top, other axis are fine) By 5mm  :!:  :!:  :twisted:  :twisted:
Checked the Jig, and looks like one of the side slided while the glue was drying, certainly because of the weight of the clamps  :!:  :!: Did not pay attention  :!:  
Jig now destroyed, and will be burnt at the next BBQ!!  :x



Oh Fred, do you mean you made a boo-boo :shock: . And I’d been thinking you were perfect :roll: . I feel better about some of my many mishaps now! :)

More haste and less speed is needed perhaps? :wink:

Keith
Title: Pilatus B4
Post by: Fred on September 01, 2012, 08:12:49 AM
:lol:  :lol: Me? Lots of mistakes! All the time (that's how we learn  :wink: )
But you don't usually hear them. That one was so stupid, that I had to share (and my doctor said that would "help" too  :P )

This is the stupid result of having a workshop filled up to the roof with gliders! No more space to build stuff, and everything is done on the corner of a table  :!:
Serious cleaning on the way, before the building season start!
Title: Pilatus B4
Post by: Happy Days on September 01, 2012, 08:47:35 AM
Okay :lol:

If you’re going to have a clearout :?:  I’m wondering if you might find a ‘novice’ type sloper you would want to get rid of.

It’s for my friend Keith who has just joined the forum. He lives locally to me and has had 3hours flight time on my powered Cessna. He wants to try his hand at sloping on the Big L. :clap:
I’m wondering that if you had anything you wanted to sell, that was suitable, he could see it and possibly buy it at the Glide -In at the end of this month. It would give you a bit more room in your grossly over stocked garage :roll: and by the sound of it, you need all the space you can get :wink:

Keith
Title: Pilatus B4
Post by: Fred on September 05, 2012, 09:40:32 AM
HELP!  :!:

Ok, I have a problem!
I can't find any blind nuts in my workshop! I know I have hundreds, any sizes, somewhere!
Looked for them for almost 2 hours last night, but could not find any!  :!:  :!:

Does anyone have a pair of nuts ( :mrgreen: ) I can borrow (well, long term borrowing really :P ).
I would need 5 or 6mm ones.
I have ordered some, but I'm affraid they might not get to me befor ethe week end  :!:

Your price will be mine  :D

On the B4 front, rudder is done, need to be attached. Ailerons are done.
So pretty much in a RTF state now, with only the servos to install for the elevator / rudder / ailerons, and of course, mount the stabilisator.
Photos to follow.
Title: Pilatus B4
Post by: Happy Days on September 05, 2012, 10:24:02 AM
I have some, :)  ….(Keithy comes galloping to the rescue!)

Are these what you want, (M5)…..if so pm me your address I’ll have them off to you by the midday post.

(http://www.gliderireland.net/forum/images/uploads/Happy%20Days/M5%20screws.jpg)
Title: Pilatus B4
Post by: Fred on September 05, 2012, 10:40:28 AM
Perfect  :D
Thanks Keith  :clap:  :clap:
Let me know how much I owe you!
Title: Pilatus B4
Post by: Fred on September 10, 2012, 11:13:14 AM
And a big thank you (and a kiss.. and a hug  :D  ) goes to Keith  :clap:
Received the Blind nuts and screws this morning  :clap:

I'll try to fit them tonight, I owe you one!  :D
Title: Pilatus B4
Post by: Happy Days on September 10, 2012, 15:10:09 PM
Quote from: "Fred"
And a big thank you (and a kiss.. and a hug  :D  ) goes to Keith  :clap:


Ssshhhhh! Don't tell everyone,........they might get jealous :oops:  :oops: