Funbat, Simple KFm2 Combat plane - Page 56 - RC Groups
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Jun 18, 2012, 02:22 AM
Registered User
i weighed my plane also. Without a battery it is 155grams.
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Jun 20, 2012, 02:31 AM
Registered User
I am sorry I don't have any video but here is a flight report from today. I took the little beast down to the local park. With my 100mah 3s lipo i was able to climb vertically and my speed runs were fantastic. Inverted flight was great with little to no down elevator needed at all. I was not happy with the roll rate so I increased the aileron movement from 40% to 80% and added 50% exponential and YEEEHA! that is more like it! rolls faster than the eye can see and only strays slightly during the rolls. Loops are a snap, Literally! hard back elevator it almost falls over itself. And my plane is less than 200grams so it glides nice and slowly to a beautiful soft landing. I will try and get some video so you guys can see why i love it so much.

Has anyone tried a single rudder version? the twin rudder is for vertical take off but I really don't know if she needs all that rudder area.

regards
Matthew
Jun 20, 2012, 02:36 AM
how'd I do that....oh
chop stiX's Avatar
Quote:
Originally Posted by lemuel
I am sorry I don't have any video but here is a flight report from today. I took the little beast down to the local park. With my 100mah 3s lipo i was able to climb vertically and my speed runs were fantastic. Inverted flight was great with little to no down elevator needed at all. I was not happy with the roll rate so I increased the aileron movement from 40% to 80% and added 50% exponential and YEEEHA! that is more like it! rolls faster than the eye can see and only strays slightly during the rolls. Loops are a snap, Literally! hard back elevator it almost falls over itself. And my plane is less than 200grams so it glides nice and slowly to a beautiful soft landing. I will try and get some video so you guys can see why i love it so much.

Has anyone tried a single rudder version? the twin rudder is for vertical take off but I really don't know if she needs all that rudder area.

regards
Matthew
Hi Matthew
The twin rudder will let it handle wind alot better
Jun 20, 2012, 02:38 AM
Registered User
Hey chopstix. Do you see that it wobbles a bit when flying cross wind with those large rudders?
Jun 20, 2012, 03:59 AM
how'd I do that....oh
chop stiX's Avatar
Quote:
Originally Posted by lemuel
Hey chopstix. Do you see that it wobbles a bit when flying cross wind with those large rudders?
I havn't built mine yet.it will wobble a little but to me in my experience with my HK PJ it's more stable than a single rudder.I'm going to make my rudders smaller so I can turn tighter
Jun 20, 2012, 07:30 AM
Registered User
Quote:
Originally Posted by chop stiX
I havn't built mine yet.it will wobble a little but to me in my experience with my HK PJ it's more stable than a single rudder.I'm going to make my rudders smaller so I can turn tighter
Shifty! good idea. I just think the rudders are for vertical take off, and can be made smaller. How much smaller were you thinking?
Jun 20, 2012, 08:13 AM
how'd I do that....oh
chop stiX's Avatar
Quote:
Originally Posted by lemuel
Shifty! good idea. I just think the rudders are for vertical take off, and can be made smaller. How much smaller were you thinking?
I was thinking about 85% ,will mock them up on the pc and see where I feel they look good enough.don't want to change to much.As they say "don't mess with what's not f**ked". it works as is,so not going to tamper to much on the design
Jun 20, 2012, 07:56 PM
Retired CAD guy
birdofplay's Avatar
OR if you're going to do Combat with ONE DESIGN,
then wouldnt all the Mods be kinds cheatin' ?

Just sayin , thats all :-)

Bob
Jun 20, 2012, 09:53 PM
Corsir Crasher
Mopower71's Avatar
when you print the plans, for page scaling what do you use?
None, fit to printable area, or?
Jun 20, 2012, 11:53 PM
Retired CAD guy
birdofplay's Avatar
If they are PDF's done to scale ( full sized )
Then using Acrobat X you print 100%
NO FITTING to paper.

X has a Tiling print function and you have a lot of choices.

Best to experiment as I dont use it.
I've only tried it out a couple of time to see how it sorta works.

I just Cut the parts out on my CNC,
So no printing. cutting/ pasting yada yada yada

And I shipped out about 3 more Funbats already this week !

I expect to see a BUNCH of builds posted here Fairly Quickly

Bob
Northwest Cutout Service
Jun 21, 2012, 01:03 AM
how'd I do that....oh
chop stiX's Avatar
Quote:
Originally Posted by birdofplay
OR if you're going to do Combat with ONE DESIGN,
then wouldnt all the Mods be kinds cheatin' ?

Just sayin , thats all :-)

Bob
I'm not building mine for combat.just to play around with
Jun 21, 2012, 01:15 PM
Registered User
chris1379's Avatar
No combat for me either. I like the plane too much. Lemuel, it sounds like your light version is a great flier. I do get the tail wobble you're talking about in crosswinds. It was a little scary the first time it happened.
Jun 22, 2012, 01:05 AM
Registered User
first visit foreign model website。。。

american model indeed very advanced。。

但是,还是要 达倒美谛国猪义!!!
Jun 26, 2012, 10:04 AM
Corsir Crasher
Mopower71's Avatar
What glue are you using for the dollar store foam?
Jun 26, 2012, 10:15 AM
Registered User
Quote:
Originally Posted by Mopower71
What glue are you using for the dollar store foam?
I use a polyeurethane glue called Tarzan grip. Some folks use Hot glue. Something that has elasticity is good in my opinion.


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