Electric Pattern Aircraft Discuss epowered pattern aircraft in this forum

Spark F3A, from Krill Models - SPAIN TEAM

Reply
Old 06-27-2009, 06:10 PM
  #101
lyka
Thread Starter
 
lyka's Avatar
 
Join Date: Apr 2005
Location: MALAGA, SPAIN
Posts: 74
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Spark F3A, from Krill Models - SPAIN TEAM

Today, maiden flight....all perfect !!!

Attached Thumbnails
Click image for larger version

Name:	Bz77995.jpg
Views:	26
Size:	221.4 KB
ID:	1225864   Click image for larger version

Name:	Mh18921.jpg
Views:	21
Size:	120.2 KB
ID:	1225865   Click image for larger version

Name:	Ch96739.jpg
Views:	20
Size:	165.7 KB
ID:	1225866   Click image for larger version

Name:	Nh10839.jpg
Views:	25
Size:	182.9 KB
ID:	1225867   Click image for larger version

Name:	Lw19831.jpg
Views:	25
Size:	150.4 KB
ID:	1225868  

Click image for larger version

Name:	Br11691.jpg
Views:	27
Size:	150.2 KB
ID:	1225869   Click image for larger version

Name:	Bd68039.jpg
Views:	46
Size:	148.0 KB
ID:	1225870   Click image for larger version

Name:	Po49296.jpg
Views:	19
Size:	149.3 KB
ID:	1225871  
lyka is offline  
Reply With Quote
Old 07-01-2009, 10:43 AM
  #102
joenella
 
Join Date: Aug 2005
Location: Odense, DENMARK
Posts: 184
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Spark F3A, from Krill Models - SPAIN TEAM


Quote:
ORIGINAL: lyka

Today, maiden flight....all perfect !!!

Congrats's!!!

That is one good lucking plane!

I will pick up my no. 3 SPARK in 2 weeks

By the way, I have noticed that my motor can be a bit hot after landing and no airflow to cool it down, so I have bought the following http://elektronik-lavpris.dk/product...ucts_id=104986 solder plug on and now I'm able to cool mu mototr when landed, it uses 3S and take 100 mAh.

Joen
joenella is offline  
Reply With Quote
Old 07-01-2009, 02:50 PM
  #103
lyka
Thread Starter
 
lyka's Avatar
 
Join Date: Apr 2005
Location: MALAGA, SPAIN
Posts: 74
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Spark F3A, from Krill Models - SPAIN TEAM

Thanks Joe....

The fan is good idea...and very effective !!!!...

best regards
lyka is offline  
Reply With Quote
Old 07-02-2009, 11:29 AM
  #104
joenella
 
Join Date: Aug 2005
Location: Odense, DENMARK
Posts: 184
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Spark F3A, from Krill Models - SPAIN TEAM

Just a small notice about my cooling fan.

Today was the first day I used it, normally I have to wait about 60-70 min to cool down the motor(hot temperatures outside) but with the fan I only needed 17-20 min to get it cooled down so on a normal day I will get around 4 flights, today I managed to get 6 flights.

So boys start your cooling fan and enjoy more flying
joenella is offline  
Reply With Quote
Old 07-02-2009, 01:33 PM
  #105
flyboy91
 
Join Date: Feb 2002
Location: monroe, MI
Posts: 673
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Spark F3A, from Krill Models - SPAIN TEAM

That is great news.
What motor are you running in your Spark, forgive me if I didn't see that before and what temperature is your motor coming down from a flight at?

Andrew
flyboy91 is offline  
Reply With Quote
Old 07-02-2009, 01:41 PM
  #106
joenella
 
Join Date: Aug 2005
Location: Odense, DENMARK
Posts: 184
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Spark F3A, from Krill Models - SPAIN TEAM

Quote:
ORIGINAL: flyboy91

That is great news.
What motor are you running in your Spark, forgive me if I didn't see that before and what temperature is your motor coming down from a flight at?

Andrew
I'm using MEGA ACn F3A and it it is fairly hot around 70-75 degree C, manufacturer says it is no problem and it seems to be ok. Running a Mejzlik 22x12WE prop.
At the moment we are facing high 20 temps nearly 30 in the shadow, in the sun more like 40-45 degree. You must expect something similar in Portugal during WC

Joen
joenella is offline  
Reply With Quote
Old 07-03-2009, 07:26 AM
  #107
flyboy91
 
Join Date: Feb 2002
Location: monroe, MI
Posts: 673
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Spark F3A, from Krill Models - SPAIN TEAM


Quote:
ORIGINAL: joenella


I'm using MEGA ACn F3A and it it is fairly hot around 70-75 degree C, manufacturer says it is no problem and it seems to be ok. Running a Mejzlik 22x12WE prop.
At the moment we are facing high 20 temps nearly 30 in the shadow, in the sun more like 40-45 degree. You must expect something similar in Portugal during WC

Joen
During my practice my motor is coming down about 60C or 140F. Usually with in 10-20 minutes I'm ready to fly again with the motor down to 110 degrees.

Andrew
flyboy91 is offline  
Reply With Quote
Old 07-03-2009, 10:13 AM
  #108
tommy s
 
Join Date: Jan 2004
Location: Tomball, TX
Posts: 1,386
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Spark F3A, from Krill Models - SPAIN TEAM

I found a use for my old glow starter battery !! I use it to power a 12 volt computer box fan
that I purchased from Radio Shack to cool down my Hacker outrunner after a flight. Temp
goes from very hot to the touch to cool in about 10-15 minutes. Battery charge lasts for a few
weeks.

tommy s
tommy s is offline  
Reply With Quote
Old 07-03-2009, 12:26 PM
  #109
flyboy91
 
Join Date: Feb 2002
Location: monroe, MI
Posts: 673
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Spark F3A, from Krill Models - SPAIN TEAM

Do you just put the fan in the front intake and let it go by the motor and out the fuse? Just wondering. This seems like it may be good information to have if people are having problems with there motors running hot.

Andrew
flyboy91 is offline  
Reply With Quote
Old 07-03-2009, 12:59 PM
  #110
can773
 
can773's Avatar
 
Join Date: Jan 2002
Location: Calgary, AB, CANADA
Posts: 2,279
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Spark F3A, from Krill Models - SPAIN TEAM

Computer fans work great, I dont use them to cool motors but I hook two of them up to the 12V supply on the charger to force cool batteries down so I can recharge sooner. Makes it possible to keep flying with only two packs and two chargers.

Andrew, you manage to get JAS out of bed yet
can773 is offline  
Reply With Quote
Old 07-03-2009, 01:03 PM
  #111
joenella
 
Join Date: Aug 2005
Location: Odense, DENMARK
Posts: 184
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Spark F3A, from Krill Models - SPAIN TEAM


Quote:
ORIGINAL: flyboy91

Do you just put the fan in the front intake and let it go by the motor and out the fuse? Just wondering. This seems like it may be good information to have if people are having problems with there motors running hot.

Andrew
No problem I like it simpel.

Attached Thumbnails
Click image for larger version

Name:	Wu60071.jpg
Views:	42
Size:	46.4 KB
ID:	1229105  
joenella is offline  
Reply With Quote
Old 07-03-2009, 02:07 PM
  #112
flyboy91
 
Join Date: Feb 2002
Location: monroe, MI
Posts: 673
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Spark F3A, from Krill Models - SPAIN TEAM

Chad,

Jason just made it in to Dtw. He isn't feeling so hot. When I leave work we will head out to the flying field.

Andrew
flyboy91 is offline  
Reply With Quote
Old 07-04-2009, 12:43 AM
  #113
f3a05
 
Join Date: Mar 2005
Location: Saffron Walden, UNITED KINGDOM
Posts: 557
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Spark F3A, from Krill Models - SPAIN TEAM

We’ve had relatively high ambient temps here recently(30degrees C).
I don’t have an accurate measure available, but my Plettenberg motor was landing too hot to touch, and taking 30 minutes to cool sufficiently for me to feel happy about flying again.
This “spinner with the nose cut off”,with a skeleton aluminium back plate, allows me to have just a ten minute interval between flights.

Crude, but effective, apparently.
f3a05 is online now  
Reply With Quote
Old 07-04-2009, 08:32 AM
  #114
tommy s
 
Join Date: Jan 2004
Location: Tomball, TX
Posts: 1,386
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Spark F3A, from Krill Models - SPAIN TEAM

joenella,

That is exactly how I do it also.
I use the 12 volt power supply if electricity is available and the 12 volt
battery at fields with no power available.

tommy s
tommy s is offline  
Reply With Quote
Old 07-04-2009, 09:12 AM
  #115
can773
 
can773's Avatar
 
Join Date: Jan 2002
Location: Calgary, AB, CANADA
Posts: 2,279
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Spark F3A, from Krill Models - SPAIN TEAM

f3a05

Anything above 60C is basically too hot to touch, and at 30+C it would be normal to be above that, so checking by feel is not a very good way to determine temperature. In all my time I have never felt the need to allow a motor to cool off before the next flight. Simply, the hottest point your motor will get is shortly after landing, the moment you takeoff for another flight it will cool off from that point and begin operating at normal temps. As long as your motor is not exceeding about 80C after landing measured on the outside can, then you are OK.

I have many times flown back to back in temperatures at 35C+ while at the US Nats in Indiana, where it is very hot and humid without problems.


Quote:
ORIGINAL: f3a05

We’ve had relatively high ambient temps here recently(30degrees C).
I don’t have an accurate measure available, but my Plettenberg motor was landing too hot to touch, and taking 30 minutes to cool sufficiently for me to feel happy about flying again.
This “spinner with the nose cut off”,with a skeleton aluminium back plate, allows me to have just a ten minute interval between flights.

Crude, but effective, apparently.
can773 is offline  
Reply With Quote
Old 07-04-2009, 09:44 AM
  #116
1bwana1
 
Join Date: Jun 2006
Location: La Jolla, CA
Posts: 381
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Spark F3A, from Krill Models - SPAIN TEAM

Yesterday I helped a friend maiden his new Spark. Plane flew great from the first flight, and just got better as he dialed in the CG, and rates. The Spark is a great snapping plane for sure. We are planning to fly some more this morning. The selfish bugger didn't offer me a flight, and I didn't ask, maybe today....
1bwana1 is offline  
Reply With Quote
Old 07-04-2009, 10:56 AM
  #117
f3a05
 
Join Date: Mar 2005
Location: Saffron Walden, UNITED KINGDOM
Posts: 557
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Spark F3A, from Krill Models - SPAIN TEAM

Thanks for that, Chad-it will be nice to be able to put the better-looking spinner back on!
So-if I can find/borrow a thermal probe thingy,if I remove the bottom chin cowl asap after landing, then take a reading off the can surface-as long as it's less than 80 degC everything should be OK?
Thanks again!
f3a05 is online now  
Reply With Quote
Old 07-04-2009, 05:50 PM
  #118
lyka
Thread Starter
 
lyka's Avatar
 
Join Date: Apr 2005
Location: MALAGA, SPAIN
Posts: 74
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Spark F3A, from Krill Models - SPAIN TEAM

Forward flights Spark Dynamic, in sequence video...

There are a little difference with old Spark, but great difference on the air !!!!.

Final weight with LIPO 4350 mAh , 4,550 grs (4,55 Kgs) !!!!!!....

[youtube]http://www.youtube.com/watch?v=lOMPrwIZHnk[/youtube]

greetings.
lyka is offline  
Reply With Quote
Old 07-04-2009, 11:21 PM
  #119
joenella
 
Join Date: Aug 2005
Location: Odense, DENMARK
Posts: 184
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Spark F3A, from Krill Models - SPAIN TEAM

Great video!!

Yes there is a little difference in the look of the 2009 version SPARk compared to the "old" versions, but in the air there is big difference, new one is just very very "crisp" and clean.
joenella is offline  
Reply With Quote
Old 07-05-2009, 12:38 AM
  #120
1bwana1
 
Join Date: Jun 2006
Location: La Jolla, CA
Posts: 381
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Spark F3A, from Krill Models - SPAIN TEAM

Bisides the paint schemes, what did the change on the 2009 version?
1bwana1 is offline  
Reply With Quote
Old 07-05-2009, 12:59 AM
  #121
joenella
 
Join Date: Aug 2005
Location: Odense, DENMARK
Posts: 184
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Spark F3A, from Krill Models - SPAIN TEAM

Quote:
ORIGINAL: 1bwana1

Bisides the paint schemes, what did the change on the 2009 version?
Rudder have new shape is without balance tap and more dihetral on the wings. Beside this is I think there has been a slight change in weight distribution back to front.

Joen
joenella is offline  
Reply With Quote
Old 07-05-2009, 01:42 AM
  #122
sd_raptor
 
Join Date: Jan 2006
Location: San Diego, CA
Posts: 27
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Spark F3A, from Krill Models - SPAIN TEAM

I maidened my 2009 Spark yesterday. I set the CG a bit forward for the first flight. No aileron trim needed. One click of rudder. A couple clicks of up elevator as expected with the forward CG. Two more flights to adjust CG to put it just behind trailing edge of wing tube. With 15% aileron differential, downline rolls are perfectly axial. Following 1bwana1's advice, I backed off on rudder and aileron rates. On the next flight snaps were incredibly crisp - stopping immediately when controls went to centers. I was doing all this in a 15mph (23 kph) wind that was at 45 degrees to the runway - the Spark needed almost no rudder to stay on a nice line parallel to the runway - it weathervanes almost perfectly.

Landing was quite different in the cross wind compared to my 25% ExtremeFlight Yak and 35% Comp-Arf Extra: instead of needing to add rudder to rotate the nose into the crosswind, I needed just a touch of opposite rudder to hold the centerline down the runway.

There is very slight coupling to the gear when applying rudder - easily dialed out with a rudder to elevator mix.

Landing is very easy since the plane shows no tendancy to tip stall at low speed.

Power is Neu 1515/3D with 6.7:1 heavy duty gearbox, CC HV-85 ESC, Mejzlik 20x12E prop. More than enough power for great uplines. Also very efficient: My last 8 minute flight used only 2650 mA-Hr from the packs.

With two 5350 5S Flightpower F3A batteries, the all up weight is just slightly over 5kg. I can easily reduce weight by cutting the flight pack batt from 2S-1300 to 2S-850, by reducing main batts to 4300mA-Hr, or by swapping out the 1515/3D for a Neu F3A-1 Motor or by replacing the 8oz P42 gearbox with the 2.3oz P32 gearbox.

Amazing plane that looks marvelous on the runway or in the air and flies with no effort at all.
sd_raptor is offline  
Reply With Quote
Old 07-07-2009, 09:04 AM
  #123
flyboy91
 
Join Date: Feb 2002
Location: monroe, MI
Posts: 673
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Spark F3A, from Krill Models - SPAIN TEAM

Congrats on the flights. I now have both Sparks in my scheme flying very well.
Andrew
Attached Thumbnails
Click image for larger version

Name:	Rp43857.jpg
Views:	19
Size:	107.3 KB
ID:	1231335  
flyboy91 is offline  
Reply With Quote
Old 08-17-2009, 10:15 AM
  #124
sleeping
 
Join Date: Feb 2008
Location: Perth, Australia
Posts: 30
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Spark F3A, from Krill Models - SPAIN TEAM

This is only one of two in Australia.

But after the World's with Andrew at the sticks, I think that's going to change very quickly.

- James
Attached Thumbnails
Click image for larger version

Name:	Zx70784.jpg
Views:	20
Size:	138.3 KB
ID:	1257885  
sleeping is offline  
Reply With Quote
Old 09-11-2009, 02:08 PM
  #125
Neil Collins
 
Join Date: Jun 2008
Location: Kempton park, SOUTH AFRICA
Posts: 85
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Spark F3A, from Krill Models - SPAIN TEAM

Hi Andrew

Congrats on your 11th placing in the worlds, I think it is an awesome achievment. It must be difficult chosing the top ten when everyone flies so well.
My Spark is going very well over 400 flights so far and the airframe is holding up very well. I am in love with your scheme as well as the black and yellow flame.
Is your scheme a custom one or is it offered by krill?

Cheers Neil
Neil Collins is offline  
Reply With Quote
Reply


Thread Tools
Search this Thread
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -8. The time now is 09:57 PM.