Comp ARF "Spark" - Page 11 - RC Groups
Thread Tools
Nov 20, 2008, 06:52 AM
The blade numbers go up to 11
stumax's Avatar
Neil, the lip is wide enough to have half of it (about 6mm) covered by the exhaust tube and then there's enough for some tape to go around it. The best tape is probably 12mm wide glass strand reinforced tape as it won't split.

BTW, Bob, I noticed that you seem to have no washer under the head of the fan mounting screw - is this correct? you really need one to keep the head of the screw from pulling thru the grommet. I'm looking forward to seeing how it goes with a smaller exhaust and less power than Bob B had in his.

Sign up now
to remove ads between posts
Nov 20, 2008, 10:34 AM
Neil Jarvis
Neil Guildford's Avatar
Thank you both, I'll try this.
I didn't use the rear disc and instead installed the whole thing and cut it off 5mm from the tail afterwards. These measurments are what it became, 85mm tall & 88mm wide.
So another variation to test...
Last edited by Neil Guildford; May 20, 2011 at 06:08 PM.
Nov 21, 2008, 07:36 AM
Senior Member
Bob P's Avatar

I followed your advice in the Installation instructions in the manual and fitted washers at the bearers and on top. The top one doesn't show well in the pic.

Nov 21, 2008, 11:01 AM
Neil Jarvis
Neil Guildford's Avatar
I just did a trial run with a Turnigy 100A 12S speed controller and found it wouldn't work on 10S (or any configuration I had). I exchanged it for a Master Hacker 90 Acro and it worked fine. The limiting factor being this controller will only run to 10S, so I'm going to need another.
My 10S 3700 Rhino's with the Stumax fan read 60A 2150W from cold at a temp of 7deg outside.
Nov 21, 2008, 11:10 AM
2018 EDF Jet Jam June 14-17
Robert Belluomini's Avatar
Sounds like you have a bad ESC. Bummer
Nov 21, 2008, 11:12 AM
Neil Jarvis
Neil Guildford's Avatar
The Turnigy goes into programing mode straight away and nothing else...the throttle doesn't change anything.
I have another Turnigy in my L-39, I may take that out to try before I buy something else.
Nov 23, 2008, 01:57 PM
Neil Jarvis
Neil Guildford's Avatar
A few pictures of the version I ordered..I think it really suits the Spark.
Nov 23, 2008, 02:15 PM
Lee Liddle
Knife Liddle's Avatar
I like the colors and the stripe treatment on the fuse/fin. I don`t like the insignias on the wings. And I think third color of accents stripes, like black, would really set it off nicely.

Not trying to be critical, just throwing out some ideas for something different than the next guy`s Spark. Overall, I`d say it`s a nice choice.
Nov 23, 2008, 02:30 PM
Registered User
markbrown1's Avatar

Looks good. At last a decent colour scheme that follows the lines of the airframe.

cant wait for this one.

Nov 23, 2008, 02:35 PM
Registered User
Neil, that looks great, is this a custom scheme?
Nov 23, 2008, 02:47 PM
Neil Jarvis
Neil Guildford's Avatar
Yes it is, Surprisingly it only took about 2 months for delivery...take note next guy, ask for black lines on yours.
Nov 23, 2008, 02:54 PM
Registered User
Gordon's Avatar
Looks very nice Neil.

BTW, on 10S TP 5000 V2s I got around 2.5kW. Maybe it was a degree or so warmer. I'm using a Graupner clamp-ammeter and DVM to measure.

Will you be at Classic Jets on 12 Dec?

Nov 23, 2008, 03:44 PM
Pursuit of Happiness
Ron101's Avatar
All I can say is Wow...
the spark is my next plane and I've been keeping an eye out for a good scheme.. That is just perfect and really picks up the lines of the model very well... really nice job man

Nov 23, 2008, 04:54 PM
Just here to fly stuff
LeadSled's Avatar
Neil, that paint scheme looks great. It completely changes the look of the plane. If I get another Spark, I might have to do that one.
I got three flights with my Spark today after doing a pm on it last weekend (too windy to fly). This is a really great plane to fly.
Here is a question for Spark pilots. I have the CARF Bohetec wheels/tires. After 40 plus flights the tires are starting to wear. Where can I find replacement tires? I emailed the CARF rep and did not have any luck. He said I needed to order a whole wheel/tire and brake package. If I can't find any tires I guess I'll just switch to MPI wheels/tires.
Nov 23, 2008, 05:23 PM
Registered User
Gordon's Avatar
On my 16lb Hawk with over 60 flights on it from a full-size runway with hi-friction tarmac, the Eurokit wheels with inserts have hardly any wear at all. I don't have any brakes though, which might be the difference. page 52, rubber wheels with aluminium rim.

Do you land with the brakes partly on?


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Comp ARF Impact Bill Mixon Site Chat 5 Nov 01, 2005 05:04 PM
31% Comp-Arf Video Splummer Sport Planes 19 Aug 20, 2005 02:12 PM
Sold Comp ARF YAK 2.6 w. DA 100 Ulf Rieder Aircraft - Fuel - Airplanes (FS/W) 2 Jul 05, 2005 05:08 PM
Comp ARF whistle for AFP Fly-guy Simulators 0 Jan 06, 2005 02:47 AM
NEW Comp-ARF Extra 2x2 KodyK Sport Planes 43 Dec 09, 2004 10:17 PM