GliderIreland - Ireland RC Forum - Flying Model forum in Ireland

Gliders => Scale => Topic started by: Fred on February 21, 2006, 13:56:26 PM

Title: Grunau Baby IIb - 1/5.5 building pictures
Post by: Fred on February 21, 2006, 13:56:26 PM

Hi there,

Follow the building of my latest ship here (http://gliderireland.modelisme.com/grunaubaby.htm)

More info will come to the forum soon.

Fred

Title: Grunau Baby IIb - 1/5.5 building pictures
Post by: Fred on March 13, 2006, 08:37:18 AM

Ok, nearly there... Ready for the first flight !

(http://www.retroplane.net/forum/images/uploads/loopingfred/13032006090621_planeur%20fini7.jpg)
(http://www.retroplane.net/forum/images/uploads/loopingfred/13032006090630_planeur%20fini9.jpg)
(http://www.retroplane.net/forum/images/uploads/loopingfred/13032006090401_planeur%20fini1.jpg)

Hope the weather for Paddy's day will be ok for the first flight...

Fred

Title: Grunau Baby IIb - 1/5.5 building pictures
Post by: Alan_Perse on March 13, 2006, 14:24:49 PM

Hi fred,

If the weather is OK on Paddies day where do you plan to fly it. I love to have a closer look. I think the wind will be coming from the east on paddies day, there might be snow also, according to the weather forcast today. But they have been wrong before  :roll:  :D .

Title: Grunau Baby IIb - 1/5.5 building pictures
Post by: Fred on March 13, 2006, 14:49:58 PM

Hi Alan,

If the weather is ok, i'll plan to fly over Keelakee... But I'll do the first flight only if there is a good Westerly wind... That's safer for a first flight / crash   :oops:

Will see, and I'll post something here on thursday.

Fred

Title: Grunau Baby IIb - 1/5.5 building pictures
Post by: joe on March 13, 2006, 22:03:32 PM

Looks really really good Fred.excellent work :D can't wait to see it fly! colour scheme is very nice as is the finish.can't wait to start building after seeing the Grunau.

Hi Alan are you from Naas? I'm originally from Allenwood,not too far from naas.any slope sites in kildare?

Title: Grunau Baby IIb - 1/5.5 building pictures
Post by: Alan_Perse on March 14, 2006, 15:48:16 PM

No Slope site that I know of Joe. The only places I fly from are Lacken and Kilakee. I hope to fly from mount Lenister some day. I actualy when't up there one day, unfortnaly with out a glider, to have a look. It looks great.

Title: Grunau Baby IIb - 1/5.5 building pictures
Post by: joe on March 14, 2006, 17:18:35 PM

Lacken? don't know it.Must be something up around Blessington?

Title: Grunau Baby IIb - 1/5.5 building pictures
Post by: Alan_Perse on March 14, 2006, 19:39:53 PM

Yes thats right. It's an OK slope. I would'nt fly big gliders there as its quit rought in places. You also have to land crosswinded.

Title: First flight...
Post by: Fred on March 16, 2006, 13:24:34 PM

Yep, it's snowing here...
So, no first flight for the Grunau this Week End... :(

Hopefully next week end !

Fred

Title: Grunau Baby IIb - 1/5.5 building pictures
Post by: joe on March 17, 2006, 14:36:51 PM

Ah good old Ireland.
you can alway depend on the weather!!  :lol:

Title: Grunau Baby IIb - 1/5.5 building pictures
Post by: Alan_Perse on March 31, 2006, 13:50:11 PM

Hi Fred,
Do you think you will be flying your grunau baby this weekend.

Title: Grunau Baby IIb - 1/5.5 building pictures
Post by: Fred on March 31, 2006, 16:02:34 PM

Hi Alan,

Maybe on Sunday, but not sure... Weather, weather weather ! :(  
So, I keep concentrated on the B25 now..  :D

Fred

Title: Grunau Baby IIb - 1/5.5 building pictures
Post by: Fred on April 10, 2006, 13:52:38 PM

Great news !
I've done the maiden flight yesterday evening... Between the rain / snow...
The place was the crappy North slope in Keelake.
I've launch the Destiny first, just to see where the lift are... Not great as usual for this slope. And very bumpy !
So, I've made 3 flights... First one last for 10 secs... Very bad launch !Nearly crash the glider on the road behind me.
 :oops:

Second launch.. A bit better, and last 3 mins, but really like a truck. Ailerons were slow, rudder not efficient at all, and this bloody machine did not want to grab some altitude ! Land quickly ( :roll: )... Sad...

So, I've checked the video at the slope to analyse the flight (too tense and concentrate to keep it flying..)... That was clear on the video... Centre of gravity too much forward... The theorical  CG was Ok, but I've forgotten to compute the cg with the wing Incidence.. (I'll talk to you about that some day..)..
Remove everything I can from the noze... Not much, maybe 50 / 60 Grs.. Big battery... and go for the 3rd launch...
Very bumpy at the start, but now, I have a glider that I can control !
As usual with the vintage glider, you must use rudder to be able to turn... Very gentle glider / flight in those flying conditions !
Really happy !! You can see the relief on my face after the landing ! The glider have nothing !
So now, I've just to wait for better flying condition to finish the setup, but overall, this is a great machine... And the sound !!   :D  Really happy !

So, here is the video of this 3rd flight, and the bumpy ride ! :

http://acmangouleme.free.fr/GrunauBabyweb.wmv

Enjoy !!

Fred

Title: Grunau Baby IIb - 1/5.5 building pictures
Post by: joe on April 10, 2006, 14:24:04 PM

WAYHAAAAAYY!! :D  :D  :D
Congratulations Fred.Thats brilliant.Well done.
Looks great,can't wait to see it crusing around in some nice lift.
You must be a very happy man  :D

Title: Grunau Baby IIb - 1/5.5 building pictures
Post by: Fred on April 10, 2006, 14:37:49 PM

Hey Joe,

Yeeessss ! Happy ! And relieved that all the calculations were right ! Damn, I'm good !   :lol:

And so beautiful in the air !

So, Start to design the next one now... A bit bigger...And hopefully as good as the Grunau !

Have you seen the PSS video ?

Fred

Title: Grunau Baby IIb - 1/5.5 building pictures
Post by: joe on April 10, 2006, 14:57:37 PM

Yeah just watched it.looks cool to see a spitfire flying by at Killakee.i'll be saving the Spit for days with good lift though i think.was struggling just to stay up at points in that video.a few tweeks to do.mainly center of gavity and things should be better.it's fun to fly  :D

Title: Grunau Baby IIb - 1/5.5 building pictures
Post by: Fred on April 10, 2006, 15:13:47 PM

Yep, I agree, definitively a CG issue !

And we want more pictures !!  :D

Fred

Title: Grunau Baby IIb - 1/5.5 building pictures
Post by: Alan_Perse on April 10, 2006, 16:51:57 PM

Hi Fred,

I think there is something wrong with the Grunau video. When I try to play it, it says the file is corrupt  :cry: .
But anyway, congratulations on the first flight. I hope to give my Pilatus it's first flight soon. Maybe this weekend since we have Friday and Monday off  :D .

Title: Grunau Baby IIb - 1/5.5 building pictures
Post by: Fred on April 10, 2006, 20:12:48 PM

Hi Alan,

The Pb come from your ISP.
Do a right click and save as...That will be fine

For the B4, where have you planned to fly it ?

Enjoy !

Fred

Title: Grunau Baby IIb - 1/5.5 building pictures
Post by: Alan_Perse on April 10, 2006, 21:14:02 PM

Great Video Fred  :D . You look releaved to have landed it safely. The conditions must have been tricky.
For the B4 I may fly it for the first time from lacken. The reason being is that I can keep far away from people when flying there, just in case things go pear shaped  :D .

Title: Grunau Baby IIb - 1/5.5 building pictures
Post by: Fred on April 18, 2006, 13:12:18 PM

Hop, the latest video from the Grunau is online !
Thanks Joe for the launch, and David for filming !

Video is here (http://gliderireland.modelisme.com/images/videos/grunaubaby2web.wmv)
R click and save as... 4.40 mins and 7.4 Mb.

Enjoy !   :D

Fred

Title: Grunau Baby IIb - 1/5.5 building pictures
Post by: Fred on June 02, 2006, 13:13:08 PM

A wonderfull picture of the Grunau Baby in Mt Leinster taken by Joe. That was yesterday :

(http://www.retroplane.net/forum/images/uploads/loopingfred/grunauMtleinster_150.jpg)

Rrraaaahhhhhhhhhhhh Lovely !

Joe is now certified "Vintage"  :D

Fred - Happy

Title: Grunau Baby IIb - 1/5.5 building pictures
Post by: Alan_Perse on June 02, 2006, 13:46:21 PM

Looks Great  :D . Where did you get the time to go to Mt Lensiter during mid week.

Title: Grunau Baby IIb - 1/5.5 building pictures
Post by: Fred on June 02, 2006, 13:53:18 PM

Joe did !
Lucky bast***d !!   :D

Fred

Title: Grunau Baby IIb - 1/5.5 building pictures
Post by: Fred on June 13, 2006, 07:54:09 AM

More photos of the Grunau.
That was last week end in Mount Leinster.
Young Padawan Joe was the pilot  :D  Ready for Retroplane !

(http://www.retroplane.net/forum/images/uploads/loopingfred/grunau1_170.jpg)

(http://www.retroplane.net/forum/images/uploads/loopingfred/grunau2_157.jpg)

(http://www.retroplane.net/forum/images/uploads/loopingfred/grunau3_160.jpg)

(http://www.retroplane.net/forum/images/uploads/loopingfred/grunau4_140.jpg)


Enjoy !

Fred