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Electric Ducted Fan Jets Discuss electric ducted fan jets here including setup tips, power systems, flying techniques, etc.

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Old 03-12-2014, 02:53 PM   #1
WingingIt74
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Default Parkzone Habu-1, what to do...

I bought a used Habu-1 last year, flew it once and the second time, I crashed while hand launching. It busted up the nose and broke the wing. What are my options? Habu-1 fuse and wings are scarce (I do have a new fuse in the box). Should I convert it to the Habu-2? Is there another EDF that I can install the guts in?

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Old 03-13-2014, 06:28 AM   #2
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http://www.horizonhobby.com/products...bnf-PKZ7080#t3

Habu - Great intro to EDF PostedNovember 3, 2010
The Habu is my first EDF and I've been flying it all season. Very pleased with the performance and handling. With appropriate control setups it's very smooth flying. Landings are easy, once you get used to the flat approach.
I flew off a runway for the first part of the season but later removed the gear and flew at a grass field (takeoffs are impossible from grass). Hand launching proved to be easy, once I got the hang of it and I do it routinely now, but along the way had two crashes. The secret is to launch level and hard, as the model has to settle a bit before it accelerates away. Once flying, it's very nice to see no gear dangling and the speed is noticeably faster. I hold the model just ahead of the air intakes for launch.
I have used both 4s 3700 mAh batteries (slightly nose heavy) and 3s 3000 mAh (good balance but less power). I plan to use 4s 3300 next season.
I have been flying with JR X9303 transmitter and Spektrum AR6200 receiver, but will switch to an AR600 when they become available as it will fit better. The JR transmitter allows me to set up flight modes. FM0 is for hand launch and includes quite a bit of up trim. I immediately switch to FM1 for smooth flying or FM2 for more aggressive flying. I set up a throttle hold switch so I can move the stick to full throttle and just flip the switch when ready to launch.
The model is quite tough and easy to repair. I managed to break it in hand launching crashes but was able to put it back together just about as good as new.
Terrific fun model. I plan to try the Sabre in the coming season.

Or inverted launch


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Old 03-13-2014, 06:35 AM   #3
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You may be able to Straighten out any crunched foam with hot water almost boiling, careful, dont get burned, you can use Virtually any glue on these, except maybe Reg. CA, use 5 min epoxy, use a thin coat as epoxy tends to get heavy with multiple repairs, if you have any holes in the foam, mix lite weight spackle and epoxy together 50/50 to fill in the holes with, Hope that helps, Chellie


Foam Repair How To
http://www.wattflyer.com/forums/showthread.php?t=65933

Post some Pictures of the Carnage, that will help us to give you better advice on The Repairs

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Old 03-13-2014, 06:45 AM   #4
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No matter how bad it looks, someone has successfully rebuilt one that looked worse.

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Old 03-13-2014, 02:28 PM   #5
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Repair a wing??? That makes me nervous... I'd rather buy one.

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Old 03-14-2014, 02:42 AM   #6
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Originally Posted by WingingIt74 View Post
Repair a wing??? That makes me nervous... I'd rather buy one.
Sure foam wings are easy to repair, just take your time and get everything nice and straight. Its easier than you think I know you can do it its only Foam, the wing will be stronger at the epoxied repaired section than the rest of the wing,

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Old 03-19-2014, 04:17 PM   #7
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True!
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