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Spark F3A, from Krill Models - SPAIN TEAM

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Spark F3A, from Krill Models - SPAIN TEAM

Old 03-31-2008, 10:28 PM
  #26  
elan120
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Default RE: Spark F3A, from Krill Models - SPAIN TEAM

Andre,

Thank you for the contact information. Is the stab and canopy attachment method the same as CARF Integral? Everything else looks to be straight forward.

Looking forward to your flight report.

Thannk you,
Kevin


ORIGINAL: Dre

I have a Spark that is close to being ready to fly. Construction/effort is similar to the C-ARF Integral. Details about the Spark can be found at www.krill-model.com.

The U.S. distributor is as follows:

Phone: 603 781 8352
Fax: 603 629 9766
Email: [email protected]
Address:
Sky Line Aviation L.L.C.
P.O. BOX 5559
Manchester, NH 03108

Andre Bouchard
Old 05-02-2008, 03:22 PM
  #27  
awat65
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Default RE: Spark F3A, from Krill Models - SPAIN TEAM

What is the C.G for the Spark?.
Old 05-19-2008, 04:23 PM
  #28  
Dre
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Default RE: Spark F3A, from Krill Models - SPAIN TEAM

Here is some information my Krill Model Spark:

The as-received weights were:

Fuse+canopy=918 gr.
L. Wing=393 gr.
R. Wing=382 gr.
L. Stab=109 gr.
R. Stab=111 gr.
Rudder=86 gr.
Wing Tube=62 gr.
Stab Tube=14 gr.
LG=125 gr.
Wheel Pants=40 gr.

The finished weight is 4767 gr. with the following equipment:

Hacker C-50 13XL Comp+Comp 90 ESC
FlightPower 5350 F3A 10S
APC 20.5x14
Futaba 3xBLS451 (Ailerons and Rudder)
Futaba 2x9650 (Elevators)
Futaba 5014Rx
Futaba choke on ESC
Jaccio Voltage Regulator

Some notes: ESC was mounted where it is and an air scoop was added to increase cooling—we fly in 90+F most of the summer in south Texas. The batteries need to be well forward if the servos are mounted in the stab due to the long tail moment/short nose moment (see pictures).

Set-up is per plans (all incidences at zero and CG at 30mm from center of wing tube).

Flights to date indicate the following:

Despite the counter-intuitive (to me) all zero set-up, the vertical lines and knife-edge trim are very good.
There is no pitch or roll couple with rudder on knife-edge or flat and level with this set-up. You can make perfectly flat rudder turns with no inputs.
Given the fuselage side-area, the side force/fuse lift is very powerful. However, yaw control is not overly sensitive.
The snaps are effortless thanks to the saw-toothed wing leading edge and high wing taper.
Stability in the wind seems quite good.

Overall, I am very pleased with the design/quality of the Spark.

Regards,

Andre Bouchard
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Old 05-23-2008, 12:08 AM
  #29  
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Default RE: Spark F3A, from Krill Models - SPAIN TEAM

Here is a picture of some SPARK's flying in Denmark, the one in GM-scheme equipped with Dualsky 6360 motor. The 2 in AZ-scheme flying with AXI5330, all off them using Hitec servoes, and flying weight approx 4700 gr.
Great flying models.

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Old 05-23-2008, 03:33 PM
  #30  
lyka
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Default RE: Spark F3A, from Krill Models - SPAIN TEAM

COngratulations !!!!!!...

If do you want say me, about motor Dualsky..... if is OK ?????....

We have in our two Spark , Hacker motor.....I am thinking to the future in Dualsky´s motor....

Thank you.

Andres Girabel
SPAIN.
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Old 05-24-2008, 03:51 PM
  #31  
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Default RE: Spark F3A, from Krill Models - SPAIN TEAM

Hi,
I'm hoping to put a Plettenberg in my Spark - does anyone have a good outline of the former that I will need to fit in the nose? Also what material do you recommend for this former? I am planning a carbon/ply/carbon sandwich.
Thanks
Colin
Old 05-25-2008, 02:36 PM
  #32  
kjpsen
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Default RE: Spark F3A, from Krill Models - SPAIN TEAM

Hi

The Dualsky are doing the job very well, lots of power, i'm really impressed of this motor. Running quit and "smooth", and at an very affordable price, but ......... so far i just have about 30 flights on it. So how long it will hold on i cant tell you yet.

Oh.... and just another photo from yesterday '''',''))
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Old 05-25-2008, 03:06 PM
  #33  
lyka
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Default RE: Spark F3A, from Krill Models - SPAIN TEAM

Jeg vil overveje din mening

mange tak.

du vil nyde dette store fly.

vi er meget glade

I shall consider your opinion

thank you very much.

you will enjoy this large aircraft.

we are very happy
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Old 10-21-2008, 08:08 PM
  #34  
geoflys
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Default RE: Spark F3A, from Krill Models - SPAIN TEAM

Dre...So after a full season with the Spark whats your impressions + &- ????
Old 10-22-2008, 02:54 PM
  #35  
lyka
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Default RE: Spark F3A, from Krill Models - SPAIN TEAM

For now, the Spark has more than 120 flights between training and competition officials.
You know, it depends on the outcome of the pilot making a point, in my case I have been sued many flights to make a good society with him .... has a very balanced in terms of the speed of flight, however much brake from de motor in declines lines, but easily leads to a uniform speed
In conclusion, is a marvel of aircraft.
I recommend to you.

should you more info, only say me ....

bye.
Old 10-24-2008, 03:44 PM
  #36  
AAbdu
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Default RE: Spark F3A, from Krill Models - SPAIN TEAM

How much is that plane going for in the states? What is availability.

I love the way it looks!!!
Old 10-25-2008, 09:15 AM
  #37  
burtona
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Default RE: Spark F3A, from Krill Models - SPAIN TEAM

Andre, please check your private messages.
Old 10-25-2008, 09:46 AM
  #38  
geoflys
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Default RE: Spark F3A, from Krill Models - SPAIN TEAM

Dre ..any feedback on the spark....how she fly?!
Old 10-28-2008, 12:29 PM
  #39  
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Default RE: Spark F3A, from Krill Models - SPAIN TEAM

Hi Andre,
An all 0-0 setup, just like in the old days!
So with the wing and stab level to the proverbial table-top, how high above the wing is the stab?
When the fuse is propped up at that angle, how does the slope of the fuse top compare to that of the bottom?
Just taking data here, Dave L. and I have been discussing why 0-0 setups appear to have gone away.

Seems like the Spark may be a winner.

take care,
Dean Pappas
Old 11-04-2008, 09:15 AM
  #40  
geoflys
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Default RE: Spark F3A, from Krill Models - SPAIN TEAM

ANDRE...Im a friend of Dave L,from NJ..I am looking for a new pattern plane and Dave said you might have some input for me.......I was wondering what your impressions of the SPARK are NOW...after a full flying season...
If you were going to look at a new plane would it make the short listt???...(what WOULD be on that list?)
Thanks...Geo
Old 11-05-2008, 03:50 PM
  #41  
AAbdu
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Default RE: Spark F3A, from Krill Models - SPAIN TEAM

I would love to know the answer to that question as well?

Anthony
Old 11-07-2008, 11:37 PM
  #42  
Dre
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Default RE: Spark F3A, from Krill Models - SPAIN TEAM

I have had a circuitous path to trimming the airplane to my satisfaction because (I believe) the recommended CG is incorrect (way too forward)IMO the drawing showing the CG position relative to the wing tube has the CG and wing tube mislabled (reversed). Once I recognized that and corrected it, I have been able assess the design....

The Spark has no negative aerodynamic tendenciesit has minimal to no pitch or roll with rudder; it does not pull/push in verticals. This is at a near zero-zero-zero wing-stab-thrust setupI may have about 0.25 degrees down thrust at this point. With rudder it tends to carve as opposed to skid around turns. It looks much more like a bipe in the rolling loop stuff in terms of yaw authority. This kind of yaw authority takes a bit of getting used to. The yaw authority is the product of the large fuse side area and careful design of side area distribution. Despite the side area, it responds well in a cross wind—its bias is towards over crabbing, which I find very desirable. All that fuse side area makes for easy rolling. Snaps are easy and reliable with this airplane, particularly stopping the snap. I believe this is due to the staggered wing plan form, which serves to make the airplane easier to stall (the opposite of what is done on full scale to prevent stall). This is one of the main reasons I bought the plane—easier and more reliable snaps.

Regards,

Andre Bouchard
Old 02-23-2009, 12:27 PM
  #43  
Roadster
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Default RE: Spark F3A, from Krill Models - SPAIN TEAM

Any one that might be interested I have a Krill "SPARK" FOR SALE This is an awsume airplane with about 6 flights on it.
Denver , Colo.
303-420-7900
[email protected]
Thanks
Old 02-23-2009, 03:58 PM
  #44  
lyka
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Default RE: Spark F3A, from Krill Models - SPAIN TEAM

I agree totally with Mr. Andre, just find the CG, we have invested more than 25 flights.
There is a critical point, if you pass this threshold the plane will uncontrollable.
We all know that the GC is very personal to each pilot, but we also know what, there is a exact point allows a balance in all maneuvers.
best regards
Old 02-24-2009, 04:43 PM
  #45  
AAbdu
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Default RE: Spark F3A, from Krill Models - SPAIN TEAM

Roadster,
How much for your spark and what does it come with? Feel free to send me a PM or an email.

[email protected]

Thanks
Anthony
Old 02-24-2009, 04:59 PM
  #46  
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Default RE: Spark F3A, from Krill Models - SPAIN TEAM

Roadster,
How much for your spark and what does it come with? Feel free to send me a PM or an email.

[email protected]

Thanks
Anthony

Hi Anthony
Sent you an email. Thanks for the reply
Greg
Old 06-03-2009, 02:49 PM
  #47  
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Default RE: Spark F3A, from Krill Models - SPAIN TEAM

Here is my Spark 09'

The big difference in this plane is it does not have a counterbalance as well as it having a clear canopy. The model now has 30 flights on it and it flying extremely well.

Hacker C50-14XL
Hacker Master 90 Comp Speed Control
Thunder Power 10s5000mah Pro-lite V2
Futaba 9551 on ailerons
Futaba 9650 on elevators
Futaba 9157 on Rudder
Powerbox Digi Switch
Thunder Power 2s 730 mah receiver pack

RTF weight 10 pounds 13 ounces

Andrew
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Old 06-03-2009, 03:41 PM
  #48  
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Default RE: Spark F3A, from Krill Models - SPAIN TEAM

Jeez Andrew, do you think that's enough rudder servo?? With only 425 in-oz of torque and all. Fortunately you're light enough to gang a second servo there, "just in case"!!!

Bill in SOCAL


Old 06-03-2009, 04:27 PM
  #49  
elan120
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Default RE: Spark F3A, from Krill Models - SPAIN TEAM

Anyone by chance know who carry this plane in US or how to get one?

Thanks
Old 06-03-2009, 05:09 PM
  #50  
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Default RE: Spark F3A, from Krill Models - SPAIN TEAM

I know of 4 guys looking to buy one of these. Can it be that hard? Hey AJ, how about some detailed flight reports. I may end up being the 5th guy I know looking for one. Give your dad my regards!

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