JohnB96041

Datagrids: Just for information, I am using the Saito 1.25 on my Funtana 125's (yes a pair of them). Have been using an APC 17 x 4w prop. Flys great, just does not have a rocket escape from a hover but has enough to go vertical from the hover.. Other than that if flys like I want it to. I am only a slight user of the 3D flying, but do try some of the goodies from time to time. Both Funtana's weigh in at 9.5 lbs dry.

Wild_D-man

No pics here at work but I used a latch off a 55" 3DHS plane:
Link: http://www.3dhobbyshop.com/detail.aspx?ID=2108

I'll try to snap some pics tonight and post.
D-Man

RACJ

Wild D-man,thanks for the info on electric. I've been looking at the scorpion motors. Maybe it would be good plane to try one on. THANKS

Bdegan

I have the tail fetahers all glued and servos installed. I still need to do the linkages.
I also have the motor and ESC installed.
I have this same set up in an 8 lb 2 oz bipe that has tons of power.
If I can get this Funtana in the 9 lb range it should go well with this set up.

Bdegan

Some numbers I have taken with this st up on the 8 lb bipe.

Static on the ground:
17x8 prop
6S 5000mah LiPo
50x65x380kv motor
56 amps, 1120 watts
12 lbs 6 ozs static thrust

I currently fly with a 17x10.
I have not done a static thrust test. But it does pull harder
But on the ground I get...
62amps, 1240 watts

In the air with an Eagletree datalogger I get

51 amps
1040 watts
and fantastic pull out of a hover and bullistic verticles

I have room to prop up this set up on the Funtana. I am thinking 19x8 or 20x8.
I have the 20x8 and will pick up a 19x8 thursday.
If all goes well, I will have some more numbers by the weekend. Maybe even a maiden [8D]

RACJ

Neat stand offs. Where do you get them? What esc do you use? I saw your reactor bipe and was tempted but I'm thinking single wing. I'd be interested to know which plane the Reactor 160 or this Funtana you would prefer day in day out. THANKS,RACJ

Bdegan

I had the x100 before and loved it.
The Recator Bipe is the favorite right now. Just because it is so stable and easy. I can transport it in one piece.
Makes it fast and easy at the field.
I can see this Funtana becoming a favorite because the Funtana's are such nice fliers.
And I really like this size of plane.
The Giant Reactor is the most straight and stable of the lot, but it does require more work at the field
for assembly and battery charging. It is a great plane for practicing IMAC sequences.

Bdegan

The Standoffs are from PSP manufacturing.
Then its just regular aluminum spacers after that. I wish the PSP's were available a bit longer.
The ESC is the Turnigy 85 amp. I have used it in 2 other planes with no issues.

Wild_D-man

Bdegan,

The othermotors I tried with 8s prior going to the Scorpion 4035-330 were the HK 380kv (same as you listed above) and the HK 270kv (love the 39.00 cost of these guys). But.... On 8s pushing19x8 props and runningright at 1900w static,both suffered full seizures on hard down lines on different days (meaning they over heated andseized in flight forcingdead stick landings).

Don't get mewrong Ifly the less expensive HK motors on many planes and love them. Buta word of caution...
Try to stay under a1800watt limit on the 50x65HKmotors.I'm guessing if you keeprunning 6s this won't be aproblem.

Peace,
D-Man

Bdegan

Yes sticking with 6S.

I'm hoping to be in around 9 lbs with the Funtana. If I can prop it up slightly and get similar performance to the 8 lb Reactor Bipe, I will be happy.
The ReatorBipe likes the speed of 17x10. The Funtana will probably do better with a slower 8 pitch prop.

Wild_D-man

Right on....

Let me know how the CG works out for you... even with the Pull-Pulland servo weight saving changes I made to the tail... I still need to push the 8s batteries all the way to the firewall to make MFG recomended CG. Ohh and All up flying weight for me is 9lb 9oz.

D-Man

JohnB96041

OK...Need some help with approx cost of the electric. Motor, ESC, Batteries, switch, etc. Don't count the model, or radio equipment. Might be able to convert one of my Funtanas to elec.. Thankis

Wild_D-man

As with most things.. the total costdepends on what kind of components you choose.

If you choose the 6s low cost route,a typical breakdown not including shipping:
HK Motor: 40.00
HK6s 5000mAh 25c Batteries: 47.00 ea. (x2 at least) = 94.00
HK 80amp ESC: 60.00
Total cost for above = $194.00

If you choose the 8s higher costroute, a typical breakdown not including shipping:
Scorpion 4035-330: 160.00
HK 4s 4000 20cBatteries: 27.00 eachneeding 2ea for 8s (x2 atleast means 4 total) = 108.00
Castle Creations ICE100 ESC: 129.00
Total cost for above = $397.00

*Note: Add between 20.00 and 40.00 to the above cost for a separate BEC(Irecomend it for this size plane).
And this assumes you already own a charger.

Of course one can mix and match just about any configuration of components so the total is a forever moving target... but this should give you a pretty good range to think about.

D-Man

Hope this helps,
D-Man

Wild_D-man

ignore please

Bdegan

ok Thanks.
I will keep an eye on it. If i have to do pull pull, so be it. I have 225's in the tail as well.
9 lbs 9 ozs is pretty good with an 8S setup. Hopefully I can shave a few ounces.

Bdegan

Got it all buttoned up tonight [8D]
Sealed the hinge gaps added some stickers. Yeah......

CG time : I got the CG set in the middle of the range. The rudder servo is in the back (985). The elevator servos are 225's.
I slid the ESC further forward than I originally had it. The 6S 5000 battery is about a 1/2 inch from the firewall beacuse the motor mount screws stick through that far.
I will cut those flush or replace with a 1/2 inch shorter screws asap.
I did have to add 3 ozs to the firewall.

All up weight with battery is 9 lbs 10 ozs.

If the weather is ok tomorrow morning, I will be able to do some run ups with the watt meter and a few different props.
I can also use the digital fish scale and get some static thrust measurements.

Hopefully I get a chance to maiden after that.

lou1947

Wondering if anyone has heard of fuselage break-up during flight?Today I took my Funtana for its first flight and had the fuselage break right behind the canopy.Needless to say the plane came down and its a total loss. I had just gotten airborne and was in the process of triming the plane when the failured occured. I was at half throtle on the Zenoah 26 when this occured. None of the guys at the field could believe what they had seen. My dealer says that he will be calling Horizon on Monday.I will have to wait and see what happens.

Bdegan

Did the maiden today.
I put the watt meter on it with the APC 19x8 prop. It hit 78 amps peak and 1611 watts on the ground.
I then hooked up the Eagletree datalogger to record the numbers in the air.

The maiden flight went well. The plane is still a bit tail heavy for my liking. It was a bit windy and gusty, so the landing was a little work.
With the plane being pitch sensitive it kept balloning up on me. On a calmer day this CG would be ok. But since we usually have some form of wind around here,
I will move it forward a touch more. I have a set of pull pull cables from another plane that are a perfect length. i will move the rudder servo this afternoon.

Some in air numbers recorded with an Eagletree Datalogger.
APC 19x8E
The maiden was 5:56 in duration. According to the datalogger......
I consumed 1161 mah's
Peak amps was 52.36
Peak Watts 1149
Low PakV 21.55

Second flight :
Duration 11:58
Consumption 2442 mah
Peak amps 60.77
Peak watts 1285
Low PakV 20.99

I will fly it with this setup a couple of more times with the CG moved forward. Then I might try going up one prop size.
Oh yeah. When i landed, I was able to hold my hand on the motor and the ESC. They were not hot at all. Just nice and warm.
The battery was just warm, again not hot. i put the temp gun on it. 98 degrees.

I have the batteries on the chargers and will see how what goes back in compares to what the datalogger said came out.
I have a video of the maiden, its pretty boring. Flying around, trimming, etc. but I will post a link once I get it uploaded later on.

Slow and Steady

I had the same balooning effect yesterday, which had a high cross wind. Most significantly on my last flight which ended with a near empty tank of fuel, resulting in a tail heavy condition. Most times I only use about a half tank. I wasn't aware of the relationship between the wind and being tail heavy, but it makes sense. Thanks for the info.

Slow and Steady

Also, as you noted, it has not been an issue of any consequence on a calm day or light breeze.

Slow and Steady

Regarding the break up of the fuselage, I have read that rc plance break up occassionally from harmonic vibration caused by the engine or prop, but don't know enough about it to advise. I guess it could also be a factory defect on your unit. Good luck!

datagrids

i have perfect combo for funtana 125.....saito 150 is perfect power for everything.it is 26 cc..funtana 125 have cg problem ,if you dont use enough weight on nose you cant get true balance for this plane...if you use saito 125 it is not enough power for pull out of hover and you must add extra weigth(aproximately 340 gr) on nose for get true cg balance.....i use saito 150 and also use only 115 gr extra weight on nose...
and if you use fg20 i think again not enuogh..if you use dl 30 or any other 30cc they are tooooo much, you will destroy this model..

JohnB96041

Here is a question for anyone that can help. I am flying the Funtana 125 with the DX7 radio system. Can I hook 2 4.8, 1100 mah batteries to the receiver? or would it be better to use the EMS Ultimate battery switcher?

Bdegan

No problem, you can do that. Just be sure to only charge one pack at a time if you leave everything connected. The circuit board shares a common ground,
and chargeing the 2 batteries at the same tme wouldn't be good.

ahicks

My Feedback: (2)

Finally got some weather that would let me see what this plane can do. Beautifull weather actually. Nice enough to really check on this plane's manners. To be blunt, they could be a lot better. Not really the best I've flown so far.... wondered how some of the others are doing?

Probably the worst handling trait on mine is during knife edge - this thing hooks towards it's belly big time! Left and right!

Tail heavy? 45 degree inverted climbout is straight as an arrow. No tuck on the downline, that's straight as well. Plane balances in the middle of the CG range. I did notice some balloning on short final, so I moved the battery (4 cell AA) 8 or 10" forward (from near the rear switch mount to next to the gas tank). That helped the landings noticably - but only required one click of up elevator trim - and appeared to have no effect on the knife edge antics.... Ideas?

Tracking through loops not real good either.... but I think I can figure that out on my own with more flight time. The knife edge has me scratching my head.

Don't get me wrong here. Not a real advanced flyer, but I was hoping for/expecting a little better than this... without having to resort to a lot of coupling this and that with the radio - but that's all I can think of?