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Ultra RC Katana 50 engine question...

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Ultra RC Katana 50 engine question...

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Old 05-04-2005 | 12:25 AM
  #1  
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From: Sunny, CA
Default Ultra RC Katana 50 engine question...

I just got one the the Katana 50's and I'm at the motor. I have a .46 or a .61 2 stroke. Has anyone flown this plane on a .46? How did it fly? I have tried the "more power" theme before and didn't care for the result. Love the power but the plane - a twist 3D - just didn't handle the same. I don't want to make that mistake again. I would like to keep the weight down to a min. but have plenty of power to sport fly. I don't 3D.........yet! I may try that in the years to come but right now I like the regular flying with a few snaps and such. Any suggestions would be appreciated.

RB
Old 05-04-2005 | 05:55 AM
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From: GympieQld, AUSTRALIA
Default RE: Ultra RC Katana 50 engine question...

RB

Go with the 46. My uncle recently bought this plane and put a gms 61 in it. The plane came out rather nose heavy resulting in quite abit of extra lead having to be put in the back. He had a few problems with the engine and encounted a few dead stick landings. Well the glide distance for this thing was not much at all. I really came to understand the term flying brick after watching this thing with no power.

Change the motor to a Mag 52 and did a bit of lightening. No pilot, cut out the wells in the canopy,slimline pitts, aluminium backed plastic spinner, wood prop, 1100mah 4.8V battery,no wheel pants, light foam dubro wheels and of course the lead that was once needed to balance. This thing has been totaly transformed with this weigth reduction. On deadsticks it now glides great with it having to slow right down before dropping a wing. The overall flying of the plane has also been able to be slowed down. Also may help those carbon gear to last longer.

Other areas of weight we were going to look at was a carbon fibre wing tube from PBG composite, I think it would have nearly saved another 30grams as well as a 6V AAA NiMH pack saving around 35grams. A mini servo for the throttle is another easy way of shaving off another 24grams

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