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Speed,Combat,Scale,Racing => Scale Models => Topic started by: John Rist on February 08, 2014, 01:42:27 PM
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Well I have all of the wood to build a new wing for my LA-5. So the rebuild process has begun. The first step was to get rid of the heavy insulated lines required for the throttle control. I bought a Hobby King car radio and removed the electronics and placed it in a project box. The project box was then mounted on my LA-5 control handel. I played with the car radio with it's trigger throttle and I did not like it. An airplane throttle should not be spring loaded. All of my setups in the past have been insulated flight lines with a control module on the handle. Much the same set up that Clancy Arnold sells.
Anyway this was the first step of many to get the LA-5 ready for this summer.
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Hi John,
I missed the reason you are having to rebuild the La-5. ??? I hate to hear it, the La-5 looked really good!
Bill
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Show us the innards of that project box? I take it that there's not much radio in that radio!
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Show us the innards of that project box? I take it that there's not much radio in that radio!
Correct - Not much. It is all on one PC board. Pots and case came from Mouser. Batery is a 3 cell 1500 mAh.
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Hi John,
I missed the reason you are having to rebuild the La-5. ??? I hate to hear it, the La-5 looked really good!
Bill
As Ty said - I did a loop that was 3" low. Cleaned off the landing gear. Unfortunately both wings were cut in half. Was trying to add a loop to the flight pattern. Made it once. On the second try I let up too soon and the bottom fell out. On a heavy ship you need to fly it all the way around and exit the loop high. Or maybe forget the loop.
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Well with step one completed, (new control handle range checked OK), it was time to move onto step two: the actual building of the wing. As you can see in the picture the Brodak LA-5 wing is not built on a wing jig. Instead each wing rib has a pair of tabs that does two things, they keep the wing straight and they set the diheadrial. Its a little tricky but if you follow the instructions in the instruction book it works well.
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Well It's starting to look like a LA-5 wing. y1
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Right now I am using a 4 cell 3.0 Ah battery in my LA-5. The 3.0 Ah gives me two flights. To get more HP I am planning to try a 5 cell 2.2 Ah battery. I found one that that fits the battery compartment. Is there a down side to this idea?
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Wing is ready to install. Photo attached is dry fit of new wing. Hope to glue it in permanently today. Beings this is an electric I plan to test fly it with only clear dope on the wing. As an electric it won't get slimed. If all is OK I will spend the hours it takes to paint and detail.
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John - when I test flew the B-29 with electric power it was in primer with no details and did not even have a rudder, the fin was there. It's nice to be able to test fly them before the final work is done to make them look pretty.
Fred