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Old Sep 14, 2014, 10:24 AM
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sturla's Avatar
Iceland, Capital Region, Reykjavik
Joined Oct 2012
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Build Log
PBY-5A Catalina 1/8 scale

I started my PBY build almost 20 years ago, I designed the plans along with the build.
At that time I had a RC model store and through my store I met an old PBY mechanic who was a big help with the design as well as an RC modeller who I could not have done this without. During the building process two PBYs came to Iceland and I was fortunate enough to get the chance to see them up close and measure them from top to bottom.



Finally in June of 2001 the Cat flew for the first time.
After 62 great flights, the PBY crashed this summer.

Being of the old school I make all my plans by hand, but I have had laser cut plans drawn for me that I am going to use for the rebuild.
I am looking forward to using laser cut parts for the build and I am also excited to put in the new landing gears that I have been perfecting.

PBY-5A Catalina Landing Gear and Flight (4 min 1 sec)



Here is a video of fligh 63

Crash of PBY-Catalina RC model in giant scale (5 min 43 sec)



Best regards,
Sturla

www.rcsturla.com
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Old Sep 14, 2014, 12:11 PM
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That is heart-breaking...what a beautiful aircraft. What was the cause of the crash?
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Old Sep 14, 2014, 01:17 PM
71% of the world is runway . .
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Nederland, ZH, Oostvoorne
Joined Jun 2009
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Hi Sturla ,

I have seen your website a few weeks ago , found it by chance. What an amazing design have you made ! so sad to see it chrash. . .

I wonder , do you have any video of it flying of the water ?

Kind Regards ,

Bart
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Old Sep 20, 2014, 04:16 PM
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Iceland, Capital Region, Reykjavik
Joined Oct 2012
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I have tried three times to take of off water. It is quite the mission attempting waterflight as you will need the perfect weather conditions and someone with a boat. Both things at a time was the first challenge.

Then I always ran into some troubles when trying fly the PBY off the water.

On the first attempt I was on a long narrow lake with crosswinds coming on the right side and every time I gave throttle the left wingboat pushed down and the plane spun around. So no takeoff there.

The second time I tried, the crosswinds came on the left side and everything was looking great. Then, seconds before takeoff, the nose wheel doors came loose on the front hinges and one of the doors cut through the bottom of the plane and took control of the plane causing it to flip.
That was such a disappointing day. It was a beautiful day and I had convinced one of the best photographer and videomaker to come with me to capture everything on film. What a letdown!

The third time the weather wasn't ideal, with rough turbulence coming from a nearby mountain. Water splashed the motor and killed it two times. So that was that.
Later talking to an ex PBY pilot he told me the only way to take off water was with crosswinds on the left wing, as the left wingboat would otherwise always push down and make the plane spin.
That was the exact same thing that happened to me.

So for the fourth attempt I was sure I would have success with what I had learned.
1. Crosswind coming on the left side.
2. Tightening the nose door really well.
3. Good weather and still waters.

Unfortunately the PBY crashed before I could make my fourth waterflight attempt.

Catalina Hafravatn take off bútur (2 min 24 sec)


Catalina 1/8 scale Model on Water (2 min 45 sec)
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Old Sep 21, 2014, 10:02 AM
71% of the world is runway . .
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Nederland, ZH, Oostvoorne
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Hi Sturla ,

Thanks for that post. So sad that you did not get a chance to give it a third try. Do you plan to rebuid it ? And will you also use gas engines then ?

Cheers,

Bart
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Old Sep 22, 2014, 12:32 AM
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Australia, QLD, Oxenford
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Quote:
Originally Posted by Bart83 View Post
Hi Sturla ,

Thanks for that post. So sad that you did not get a chance to give it a third try. Do you plan to rebuid it ? And will you also use gas engines then ?

Cheers,

Bart
Probably help if you read the opening post!!

Quote:
Originally Posted by sturla View Post
Being of the old school I make all my plans by hand, but I have had laser cut plans drawn for me that I am going to use for the rebuild.
I am looking forward to using laser cut parts for the build and I am also excited to put in the new landing gears that I have been perfecting.

Best regards,
Sturla

www.rcsturla.com
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Old Sep 22, 2014, 07:35 AM
71% of the world is runway . .
Bart83's Avatar
Nederland, ZH, Oostvoorne
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Quote:
Originally Posted by taz101 View Post
Probably help if you read the opening post!!
Yup your right

Cheers,

Bart
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Old Sep 22, 2014, 10:12 AM
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Iceland, Capital Region, Reykjavik
Joined Oct 2012
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Of course she will be rebuilt, I want a new gas engines RCG 26cc same type as in my DC-3
http://www.rcgroups.com/forums/showthread.php?t=2015293
Did you notice that I have control of the water. Rudder to the right gives the left motor extra power and rudder to the left gives the right motor extra power.

You who are making a PBY may see this albums
https://picasaweb.google.com/1078264...18PBYCatalina#
and
https://www.flickr.com/photos/sturla/sets/

Helpful links for your scale construction
http://www.seawings.co.uk/Catalina-FactoryConstgal.htm
http://www.seawings.co.uk/
http://www.seawings.co.uk/pencatwrgal.htm
http://www.seawings.co.uk/Catalina%2...20-%20SVSM.htm
http://www.williammaloney.com/Aviati...BYCatalina.htm
http://scalemodels.ru/modules/photo/...t_cid_536.html
http://www.pbyrescue.com/
1:32 PBY-5A Catalina
http://forum.largescalemodeller.com/...mited-edition/
http://militarymodels.co.nz/2013/02/...ina-resin-kit/
RC Scale Builder- Catalina 1/8 scale
http://www.rcscalebuilder.com/forum/...TID=14093&PN=2
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Last edited by sturla; Nov 30, 2014 at 08:18 AM.
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Old Sep 22, 2014, 10:22 AM
71% of the world is runway . .
Bart83's Avatar
Nederland, ZH, Oostvoorne
Joined Jun 2009
1,970 Posts
Hi Stula ,

Differentail throttle ,yet i noticed. I use it on my Empire flyingboat also.

ppfff one more airplane to my ''to build'' list

Cheers,

Bart

PS : did you get my private message ?
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Old Sep 22, 2014, 04:49 PM
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sturla's Avatar
Iceland, Capital Region, Reykjavik
Joined Oct 2012
74 Posts
Cat in the making in California

Last year I sent Mel from California and his friend Gary two sets of Catalina parts. This weekend Mel sent me pictures of his building progress and the Cat is all coming together. He is obviously no beginner in modeling, it is looking fantastic.
Mel kindly allowed me to post the pictures he sent.

Best regards,
Sturla

www.rcsturla.com
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Old Dec 02, 2014, 05:58 PM
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Over the weekend I started to re-build my Cat.
The center wing is all coming together.
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Old Dec 04, 2014, 04:21 PM
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Iceland, Capital Region, Reykjavik
Joined Oct 2012
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Yesterday, I received from the printer 5 sets of PBY Cat and 5 sets of DC-3 plans.

Today, I am considering to paste broken pieces from the middle of the plane together.

Sturla

www.rcsturla.com
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Last edited by sturla; Dec 10, 2014 at 01:27 PM.
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Old Dec 04, 2014, 04:46 PM
71% of the world is runway . .
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Nederland, ZH, Oostvoorne
Joined Jun 2009
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ah , it hurst seeing those broken pieces. Hope you build this one as nice as the first was.

Cheers,

Bart
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Old Dec 06, 2014, 04:17 PM
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Iceland, Capital Region, Reykjavik
Joined Oct 2012
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Wheels housed things glued together and fit right to the tail.
I found the parts 1-2-3-4 of nose,
after an hour of work, I had a nose for the most part.

It was probably a good idea to take all the parts home.
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Old Dec 08, 2014, 05:27 PM
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Iceland, Capital Region, Reykjavik
Joined Oct 2012
74 Posts
My PBY-5A Catalina standing on the wheels again, it was amazing what many of whole parts come of this crash.

Sturla

www.rcsturla.com
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