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Search: Posts Made By: alpbak
Showing results 1 to 25 of 44
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Forum: Electric Pattern Aircraft
10-12-2012, 06:16 AM
Replies: 7
Views: 1,405
Posted By alpbak

Question about charger balance connectors

I got a new Thunder Power 1430C charger to charge 8 cells batterries for my Wind S Pro. I am a little confused about 2X4 cells balance charging. Normally I use I-Charger 1010B and have no problems...
Forum: Scratch Building, Aircraft Design, 3D/CAD
03-30-2009, 03:33 PM
Replies: 0
Views: 655
Posted By alpbak

1/2 Piper Cub Build Live Web Cam

We are building a 1/2 scale Piper Cub in our shop and broadcasting live 24 hours. There are 2 cameras broadcasting and the images are refreshed every 10 seconds. Naturally it is a slow progress but...
Forum: RC Pattern Flying
01-23-2009, 10:54 AM
Replies: 223
Views: 73,372
Posted By alpbak

RE: NEUTRINO - NEW F3A PROJECT FROM GREECE

Hi Elias,
We met in the European Championship last year. I'm following this thread, you are doing a great job. Keep going.
Forum: RC Pattern Flying
06-02-2008, 04:02 AM
Replies: 207
Views: 43,897
Posted By alpbak

RE: European Championship 2008 - Brescia Italy

Turkish national F3A contest was held yesterday. I became the 3rd and I'm in the team :D

The team members are:
1- Ahmet Eryildirim
2- Serdar Salta
3- Alpaslan Bak

All our planes are...
Forum: RC Pattern Flying
05-23-2008, 08:07 AM
Replies: 207
Views: 43,897
Posted By alpbak

RE: European Championship 2008 - Brescia Italy

The Turkish national F3A competition will be on the 1st of June and the first 3 will go to European Championship in August. I am practicing quite a lot for our nats and hope to be able to finish in...
Forum: RC Pattern Flying
05-22-2008, 04:18 AM
Replies: 46
Views: 7,039
Posted By alpbak

RE: Knife edge trimming question

I thanked Bryan earlier in this forum, but after seeing some negative posts I would like to thank him again for helping me out with his article. I had some other trimming charts, especially the...
Forum: RC Pattern Flying
05-21-2008, 07:10 AM
Replies: 46
Views: 7,039
Posted By alpbak

RE: Knife edge trimming question

In addition to my previous post, to my surprise, these changes affected the left rudder knife edge problem. Straight flight is still straight, inverted flight still needs a little down elevator,...
Forum: RC Pattern Flying
05-21-2008, 07:00 AM
Replies: 46
Views: 7,039
Posted By alpbak

RE: Knife edge trimming question

Here are the before and after values.

Wing incidence:
Before: +0.5
After: +0.98
I increased the incidence in very small increments (quarter turns at a time)

Stabilizer:
0 degrees...
Forum: RC Pattern Flying
05-21-2008, 02:40 AM
Replies: 46
Views: 7,039
Posted By alpbak

RE: Knife edge trimming question

I was at the flying field yesterday for some practicing and some more trimming.

After some more trimming, the plane is now perfect. I was able to take out the rudder to elevator mix. At the...
Forum: RC Pattern Flying
05-20-2008, 06:00 AM
Replies: 46
Views: 7,039
Posted By alpbak

RE: Knife edge trimming question

MattK,
What you suggest is interesting and worth trying. I will definitely try that and see what happens. I will write the result here.

Thanks
Alp
Forum: RC Pattern Flying
05-19-2008, 05:09 AM
Replies: 46
Views: 7,039
Posted By alpbak

RE: Knife edge trimming question

Do you mean to add negative stap incidence only to one half of the stab and leave the other one the same? I can try this but wouldn't that cause some other major problems?
Forum: RC Pattern Flying
05-15-2008, 03:39 AM
Replies: 46
Views: 7,039
Posted By alpbak

RE: Knife edge trimming question

I increased the wing incidence to 0.75 degrees and moved the CG a little forward and the problem is nearly solved. I only needed 2% rudder-elevator mix. I'm sure I can take out the mix by working...
Forum: RC Pattern Flying
05-10-2008, 02:57 AM
Replies: 46
Views: 7,039
Posted By alpbak

RE: Knife edge trimming question

Dean and Bryan,
Thank you for your explanations and suggestions. I have a clear view of everything now. Next time I go flying I'll do what you suggest and try to make it a perfectly trimmed...
Forum: RC Pattern Flying
05-09-2008, 06:56 AM
Replies: 46
Views: 7,039
Posted By alpbak

RE: Knife edge trimming question

That is a very helpful article. Thanks.
Forum: RC Pattern Flying
05-09-2008, 03:29 AM
Replies: 46
Views: 7,039
Posted By alpbak

Knife edge trimming question

I have finished my new Impulse and trying to trim it. I have started with +0.5 degrees of wing incidence and 0 degrees of stabilizer incidence. The engine is a 140RX and it has 2 degrees of right...
Forum: RC Pattern Flying
03-05-2008, 03:10 AM
Replies: 2
Views: 720
Posted By alpbak

RE: Contact wanted for Krill

Here is the information:

Mr. Ivo Kryl
[email protected]
Forum: ARF or RTF
09-05-2007, 04:20 PM
Replies: 2,926
Views: 399,840
Posted By alpbak

RE: New Great Planes Revolver

CC,
I haven't used any flaperon in the Revolver but found an easy way to land. There are a few trees in our flying field so we can not make long approaches easily. So what I do with Revolver is...
Forum: "1/2 A" & "1/8 A" airplanes
09-05-2007, 02:19 AM
Replies: 8
Views: 1,059
Posted By alpbak

RE: OS 15CVA - what racer plane?

CP,
I'm planning to make a foam wing covered with balsa and 2 carbon fiber strips thru the wing. So a 7 inch chord should not be a problem. What do you think? V-tail looks cool, right, I might do...
Forum: "1/2 A" & "1/8 A" airplanes
09-04-2007, 07:25 AM
Replies: 8
Views: 1,059
Posted By alpbak

RE: OS 15CVA - what racer plane?

CP
Thanks for the advise. I think I will do what you say. I found a plan on www.pylonworld.com, The Hurikane. It's a Q500 racer, I will scale it down to 36 inches. Hope everything goes well and it...
Forum: "1/2 A" & "1/8 A" airplanes
09-03-2007, 05:29 PM
Replies: 8
Views: 1,059
Posted By alpbak

OS 15CVA - what racer plane?

I have an OS 15CVA lying on the work bench. It was on a Herr Little Extra that has met its end due to a bad crystal. I am planning to build a pylon racer for this engine. I am planning to scratch...
Forum: ARF or RTF
08-26-2007, 04:50 PM
Replies: 2,926
Views: 399,840
Posted By alpbak

RE: New Great Planes Revolver

I forgot my camera, so there are no photos or videos this week. Probably next week I will take a video of it.
Forum: ARF or RTF
08-26-2007, 04:47 PM
Replies: 2,926
Views: 399,840
Posted By alpbak

RE: New Great Planes Revolver

I got a Revolver last week, built it in 1 day and went flying on Sunday. I used an OS 50-SX with a pitts muffler. At first I was planning to put a 70 Surpass but changed my mind and put the 50 SX....
Forum: RC Pattern Flying
08-26-2007, 03:52 PM
Replies: 41
Views: 4,982
Posted By alpbak

RE: The Dr. Jeckyll Resurrection??

Keith B is right, this plane glides very long and does not slow down easily, so you need to get used to it. But once you are familiar with the landings it is easier then a trainer.
Forum: RC Pattern Flying
08-24-2007, 02:15 AM
Replies: 41
Views: 4,982
Posted By alpbak

RE: The Dr. Jeckyll Resurrection??

Go ahead and finish that plane and send us another Jeckyll flight video. You won't be sorry :D
Forum: RC Pattern Flying
08-23-2007, 12:40 PM
Replies: 41
Views: 4,982
Posted By alpbak

RE: The Dr. Jeckyll Resurrection??

Here is a video of me flying Dr. Jeckyll at a local contest. Sorry about the video quality, a friend took it from a distance and my flying here is not the best [:'(]

Dr. Jeckyll Flying
Showing results 1 to 25 of 44
 
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