View Full Version : Converting a Hanger 9 Funtana .40

Jeff Boyd 2
10-05-2005, 04:22 PM
Hi all . . I have just taken delivery of an ESM Katana 40 (YT International in UK). I think its the same model as the Hangar 9 version . . just in a different scheme? See attached pic. I wasn't able to get a Hangar 9 version in Australia, but this one popped up !

I already have a Castle Phoenix 45A, and I am hoping to run a AXI 4120/14 on 4S2P 4400mAh (maybe 5S . .). I realize this will be pushing the ESC (especially the 4S / bigger prop), but will this combination be effective? The Katana is about 2.3kg / 5lb in glow form, so I guess maybe 2.5kg / 5 1/2 lb in electric ?

Any help appreciated.

10-05-2005, 08:47 PM
I just finished building mine


AXI 4120/18, CC Phönix 60, 5s1p Kokam 3200HD, APC-E 16x8. 2,5kg AUW. 3,7kg static thrust. I pull about 55amps.

I shaved weight off anywhere I could (digital microservos, carbon landing gear...) to get to 2,5kg

Jeff Boyd 2
10-08-2005, 02:38 PM
Thanks fdix. Looks good . . and very helpful. I'll post some pics of mine when finished. I haven't got the time until late December, but I will definitely be flying it by mid January.

Matt Kirsch
10-11-2005, 02:00 PM
Say fdix, how does it fly, and how does the motor handle being pushed hard like that?

10-11-2005, 03:10 PM
If flies ok. Knife edge is disappointing. Have a look at the other thread for details


The motor feels fine, barley warm after a flight. I rarely use full power, and only for very short bursts. The plane is definitely well motorized like this. ;)

Jeff Boyd 2
11-16-2005, 02:53 PM
Well, I've finally selected a motor, a Hyperion HP-Z4025-12, and it's on its way (check link) http://aircraft-world.com/prod_datasheets/hp/z40/z40all.htm

This motor seems impressive and offers a good spread of voltage and amperage use, so can go up in cells and/or prop if I need more performance without over taxing the motor.

It also has a pretty neat bell support bearing arrangement. I'll keep you posted with tests.

Jeff Boyd 2
11-16-2005, 11:25 PM
PS. I have also noticed that the earlier versions had a built up flat sectioned stab, and used carbon braces for reinforcement (apparantly, the flat stabs had a habit of breaking at the fuse joint aided by over zealous cutting of the covering and scoring the balsa with the knife at the attachement point).
The new versions have a built up symetrical sectioned stab with balsa sheeted leading edge and cap strips on the ribs. Same as the wing . . NICE.
For interest, does anyone know if the Hangar 9 version has this mod now ?

Jeff Boyd 2
12-30-2005, 12:54 PM
Hi Guys, I thought I'd start the build thread on a "fresh slate". http://www.wattflyer.com/forums/showthread.php?t=3361

Hope this is OK, Mike?

Cheers, Jeff