RE: Comp ARF Flash update
 

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Dave

RE: Comp ARF Flash update
 

OK, I have tried to upload the video from today and think this should be the place to look. No doubt you will let me kno if it duff.
http://www.youtube.com/watch?v=FQs-xAmg-NE

Trevor Skedge

RE: Comp ARF Flash update
 

Chaps,
Sorry for the spelling etc, I realy should read the posts before hitting the OK.

Trevor Skedge.

RE: Comp ARF Flash update
 

What did you use for a cockpit kit??

Mike

RE: Comp ARF Flash update
 

Dave/Trevor - excellent to see video of the Flash. I particularly enjoyed seeing it being put through a full and testing routine, I take it Dave likes flying it given the ringing out it got. Shows not only Daves skills but also the integrity of the airframe - gives me every confidence that I made the right choice in ordering one, all I've got to do now is wait for delivery!!!

AlanR

RE: Comp ARF Flash update
 

Dave,

Any chance you can give those of waiting for our Flash's a few tips - what servos used, hints and tips from assembly, set up for flying - throws/expo etc. (appreciate it's a personal preference). Might as well buy the rest of whats needed while I wait for the postman to call !!!

Regards

AlanR

RE: Comp ARF Flash update
 

Thanks for posting the vid Trev. Hope I can fly mine half as good as Dave!

Can't wait to get my Flash now!


Chris

RE: Comp ARF Flash update
 

AlanR,

I am also awaiting delivery of my Flash and having flown Dave`s once the filming was done, I am sure you will not be dissapointed.
I have had a couple of flights with his Lightning and it realy is a scaled down version of that but more importantly for me it is easier to store and transport.

Trevor Skedge.

RE: Comp ARF Flash update
 

Guys

OK set up in total is

JetCat P120
I'm flying 10 minutes and have 3/4" of fuel left in the main tank-Both tanks need a felt clunk to empty fully as they are so flat in shape. My model has a felt clunk in the wing tank and std in the fuselage tank-at 10 minutes there is some air in the UAT, hence I think it needs a felt or BVM clunk tube (mine has Tygone) in the fuse tank.

I have JR 8321 on Rudder and elevators (9kg) , 8411 on ailerons, 8231 (plastic gear) on flaps 6.5kg and a JR ES579 on nose wheel steering.
JR 1000DS Rx powered by a Powerbox Sensor Switch with 2 x Thunderpower 2100 2s packs. This is good for at least 6 flights.
ECU has a 6 cell 3700mAh Graupner pack (no rubbish cells!!)
With these in the rear of the battery boxes I have 50grams just in front of the nose unit.

300mm Whip is a long way back on the fuselage because of the fuel tank, it's not on the nose because of the carbon/radio position and nose wire canopy release! Range is great.

The combined retract/brake valve works great (when you have the mix working!!! unlike my first flight today :-( the system only uses 10-15psi per flight.

Inverted needs very little down and knife edge is still mix free.

I'll look at radio figures later

Enjoy

Dave

RE: Comp ARF Flash update
 

Mike

Cockpit tub in kit, pilot is a Cermark jobbie...

Dave

RE: Comp ARF Flash update
 

How much does it weigh? Thanks.

Bob R

RE: Comp ARF Flash update
 

Alan

On some of the earliest kits shipped the elevator cover plates were machines slightly out, Comp ARF are saying they will replace, so check these first on your delivery (do the tailplane first!)
So much of the hard work is done, the wing tank if you go for it does not want to be too tightly packed as it expands while filling-same with the fuselage tank, a little movement is good.

Flap linkage, the way the wing is made Comp ARF need to leave a little wood where the Flap pushrod comes through-just for assembly-you need to file most of this out to get push rod clearance.
I'm using a JR superservo arm on the flap servo, second hole out from boss and end hole on flap (there are two)

I added a small rubber band to the nose door to pull it shut when static, this stops you breaking it off if stored with the gear up.

Thats it really

Dave

RE: Comp ARF Flash update
 

Dave,

I was told that an 8411 servo will not fit in the stab, but they are listed as OK in the manual and the specs. on the 8411 and 8321 (8311 over here, I think) on the Horizon hobby site show the two servos as being the same thickness. What's the story, will and 8411 fit (or be made to fit)?

Also, what servo arms did you use, the JR HD plastic ones, or metal?

Thanks,
Bob

RE: Comp ARF Flash update
 

Bob

Of course the 8411 will fit-only the 8511/8611 won't in the stab or fin.

I used the 8321 (8311) because it has less gear play.

Best Regards

Dave

RE: Comp ARF Flash update
 

Will the 8611 fit elsewhere (other than the stab)??

RE: Comp ARF Flash update
 

Pilott34

Yes, if you must use them there is depth available.

Regards

Dave

RE: Comp ARF Flash update
 

Thanks Dave,

I just happen to have 4 8611s ready to go into a plane and I dont want to go buy more 8411s with these sitting on the shelf. So you say they will fit everywhere but the stabs right?? My flash should be here in a couple weeks so Im trying to pick up all the parts I need.

Mike

RE: Comp ARF Flash update
 

Dave

I was planing on also using a spare P-120 for this airplane. I know you said a p-70 or 80 would be fine. I am worried about the weight and wing loading at low speeds. Does it do ok with the weight of the p-120. I would love to have your same setup, just don't want to have to land at 150 mph.

Thanks for the info

Bill

RE: Comp ARF Flash update
 

Bill,

The P-120 is less than 4 oz. heavier than the P-80 and is the same size case. I'm going to be using a P-120 in mine as well, and it should fit and fly fine.

Bob

RE: Comp ARF Flash update
 

Convert your 120 to Kero start and do away with another oz or two of propane tank etc and have less hassle at the same time :D

RE: Comp ARF Flash update
 

Bill

No worries on the weight, at 22lbs it feels lightly loaded, some of the flying shots were taken just after take off with a full load of fuel and the aeroplane cruised around at 25% power to make the camera mans job easier. This was all without flap...
The wing is thick all the way out so it has quite a bit of built in drag. The landing on the video was twice the speed of later landings once the flap settings were optimised. The Flash and Lightning both land nicely with moderate angles of flap.

Regards

Dave

RE: Comp ARF Flash update
 

Flash, I will use a P-70 to keep weight down! WHMC

RE: Comp ARF Flash update
 

i seen both of them flying last weekend in Germany
the lighting was powered with a JC 200 and the Flash with a JC 120
performance was nice however one could see that they both where heavy and needed some space to land.
the second flash (blue angels) however did not survive the first knife edge and went to "plane heaven" with a Flash !(failsafe)
i seen it happen and it was a failsafe situation before anyone says otherwise....
the flash looks perfect,nice detailed and the blue angels sceme i liked the most.
however the sign : Composite arf on the wing spoiled the whole blue angles theme i hope that can be ripped off.
i think it will come out at his best if powered with a Wren Supersport
if i look at fuel consumption and thrust to weight ratio (in real life and not on paper;)) then the Wren is the best choice.
heck! even a mark III mw54 would be a good choice.
a few lipos here and there one fuel tank and up up and away!
then it will be a very light sport plane and ideal for short fields and moderate fliers like yours truly!
(when i fly upside down they need to turn me upside down also otherwise i will crash it:D)
i would use only the main tanks and not the wing tank
use a wren thrustpipe,weight in half and more thrust.

cant wait to get mine....[8D]

RE: Comp ARF Flash update
 

Sandor

The two prototype models that were in Germany were a lot heavier than production models-this model does not need a P60-54 size turbine to be light in the air.
Not everyone likes the noise of the SuperSport, for club flying it has possible noise implications.
Yes a lighter pipe and small turbine will save weight, but it is not what this aeroplane was about.

Dave

RE: Comp ARF Flash update
 

Dave

you where there? ;) they told me they where the production models , i guess they wrecked some more then?
i just seen them a week ago.

(quote: Not everyone likes the noise of the SuperSport, for club flying it has possible noise implications."/quote)

that is called thrust dave, when turbines deliver lots of thrust they do make a fantastic sound yes.
in my list of the simjet 3000 , Merlin , Wren these are the best turbines i know off.
true inovation..

Weight

well i count myself to the rest of 75% of people that fly of gras fields.
and believe me the lighter the better ,i truly like paved runways believe me.
but with grass you need to be light ,and have a decent gear that is suitable for gras.
believe me the dutch know a thing or 2 about grass in any form:D

still cant wait to get mine...............