RE: Impact set-up
 

More info on Greve's plane: he told me it's a Schulze "Future 32.55" ESC, which handles up to 60A continuous. Price is a major issue with this ESC (300 EUR), but it is certainly better suited for larger outrunner type of motors, whereas the Hacker 77-3P is more suitable for geared brushless motors (it still works, but "backfires" sometimes). One nice thing about the Schulze is that the ESC is updateable upon returning it to the factory.

Greets,
-Fabrizio

RE: Impact set-up
 

I have the 10s2p packs and they are fine, seen guys do the shows on them, gettting between 12-15mins on each pack, drawing a max of 42amps on a 20x11e prop. don't forget that the lower weight also means you can go down a prop size reducing the current drawn.
This is with the hacker C50 and opto 90 esc.

The impact also looks alot like the lorenz rhapsody.

RE: Impact set-up
 

What C-50 set-up is in there?

The Impact is just a modified version of the Rev-Pro. Having flown both, there are some significant differences in the 2 designs.

RE: Impact set-up
 

It's the C50 13XL 6.7:1 gear redux, 1292rpm/V is this what you mean.

RE: Impact set-up
 

Hi
What is the 10S2P Lipos you are using ? TP, Kokam, Tanic, other ?
Regards
DV

RE: Impact set-up
 

They're from flightpower uk, their web address is www.flightpower.co.uk.

They can handle between 50 - 70 amp fine and can be pushed to 100amps for a short while.

RE: Composite ARF Impact
 

Hi,

What is the weight of the entire pack that goes into the model?

Thanks!

RE: Composite ARF Impact
 

While following up on post Nat's infromation I was informed that a new batch of Impacts are coming through in September. At the Sayre local contest I noted that most everyone that I spoke with did not know who was bringing them in. If your are reading this list you know but I guess the word has not got out yet?

E.

RE: Composite ARF Impact
 

Hi TonyF

The combinded weight of the packs is 1160grams for 10s2p.

Don't know how much the TP packs weightt though - any ideas

RE: Composite ARF Impact
 

I have had one on backorder, but my status as of today shows confirmed, so I assume they have the August shipment in the US now. I havent received it yet..but presume its closer and has only to run the gauntlet of the US shipping gorillas now.

RE: Composite ARF Impact
 

I am curious as to whether you all are going, glow, gas or electric with your new Impacts.

Then what I am looking for is the "dry" weight.

Regards,

Eric.

(Sorry about the edit but I had to fix some typo's - can't seem to get the spell checker to fly)

RE: Composite ARF Impact
 

I too had one on order and the order changed today to confirmed and then to processing, so I too think it is only a matter of time until we receive them. Erik, I will give you the dry weight as soon as I receive it. I have elected to go Glow with mine as the cost of the batteries and the short duration of flight time with each pack makes it cost prohibitive for me at this time...

RE: Composite ARF Impact
 

Hi Eric,

I have a fresh kit at home which I am just about to start on. What information do you want exactly?


Regards,

Peter (Aus)

RE: Composite ARF Impact
 

What is the best electric motor out there for pattern. I'm using the geared C50 but have seen a few others around.

RE: Composite ARF Impact
 

Hi Jason,

Congratulations on your NATS win.


Could you please tell me were your CG is on the "Impact". I think the place they mentioned in the instructions is too far back.

They say the Center Of Gravity: ½ - ¾ inch behind the wing tube (location of the wing mounting bolt).

A friend of mine who just test flew his said it was way too tail heavy. I remember reading somewhere that some people a balancing the model somewhere near the front of the tube.


Thanks,

Peter

RE: Composite ARF Impact
 

The only data that I currently have is what I got when I personally weighed Jason's electric version at the Nat's. I am looking for how she comes out with different engines and equipment. As an 11lb electric plane she was pretty impresive. As an IC powered plane I have no data. So please give me empty-shell and then fully-loaded with equipment weights.

Thanx in advance,

Eric.

RE: Composite ARF Impact
 

Eric,
.
I will try and get some weights to you soon.

I can tell you my mates IMPACT with 140RX and OS Pipe with JR gear weighs 4.5kg. All he did was build it as per instructions. Nothing extra was done to the model to try and reduce weight. Engine mount used was a Hyde copy. Batteries used were nicads.


Regards,

Peter

RE: Composite ARF Impact
 

The new TP60005S3PSHD packs are 6000 mAh and only 1193 grams for 10S3P. Up to 50-60 amps continuous, and bursts to 85+ amps. These are the packs many of the European pilots will be using in their Hacker powered models at the upcoming championships. Lightest weight per capacity of any packs in the world with plenty of power too!

RE: Composite ARF Impact
 

I am considering this plane for my first patter type plane, Would this be a good chioce? I am looking for an ARF type model and I am also considering a focus II from Piedmont models. Any Input would be apreciated. I am not a newbie I have been flying planes sfor over 10 years and I am looking for a change of pace
thanks

RE: mAh Math
 

10s2p might be too little (20cells) maybe 9s3p(27cells 4,5oz lighter)or 8s3p(24cells almost 10oz lighter) would be good

still need 2500watts, so that makes 90amps on a 8s pack, dunno how high you have the throttle flying a routine but my 3D ship is fine at 90amps on a 3p pack.


[sm=surprised.gif]

Impact
 

Brian01601,
This is my 2nd 2 meter plane and my first composite fuse plane. I have been flying a focus ver 1 which is an absolutely awesome plane. It is not very hard to setup, much easier then the composite ARF. The Impact is highly complete but I'm pretty sure that if I didn't have a highly experienced friend helping me out it could have been ugly. If you have set wing/tail tubes and incedences or have access to someone that can help, you will be fine. If you decide to get one I would be more then happy to let you know about some of the pitfalls with the kit. Hope this helps in your decision.

RE: Impact
 

Michael,
I, for one, would be interested in hearing your experiences (pro and con) regarding this plane. I'm sure many others are looking pretty hard at this model too. Please consider sharing your info here, with all of us.
Regards,
Derek

RE: Impact
 

checksix,
My overall impression of the plane and others that have seen it is, Top shelf quality. Especially for the money. With a little care it should come out under 10lbs ready to fly. I am shooting for a weight between 9.5 to 9.75 RTF. Of course I havent flown it yet but reports are very good from those that have flown it.

These are the few things that I have found with the kit.

Wing
The wing tube is not perfectly round like say a PBG tube. With this in mind it looks like the phenolic sockets in the wings and the one that goes in fuse were made by wrapping glass around the wing tube. The reason I say this is that the wing tube fits better in one direction then the other. I also had to do a bit of sanding in the phenolic tubes to get the wing tube to slide in. I also found that the phenolic tube that goes into the fuse was slightly loose on the wing tube. You can use tape on the tube or put a bit of epoxy/micro balloons in the phenolic tube and sand for perfect fit.

Stab halves
They use a carbon tube for the tail. It was a tight fit into the tail halves and needed to be sanded to fit. They use a piece of carbon rod to set the incidence and act as anti-rotation pins. The problem I see is that the directions tell you to set the wing at 0 and the tail at negative .2 to .3 degrees. If you do it this way, once you have the plane finished with the tail post glued in it would take some serious work to change the incidence on the tail. So you have 2 choices. Fist is set the tail at 0 degrees and set the wing to positive .2 to .3 degrees. (Same as setting the tail at negative .2 to .3 degrees). It will be much easier to change the incidence on the wing after the plane is built if you find out you need to. The second choice would be to adapt a set of tail adjuster to the plane to allow incidence changes to the stab. I opted for option 1. I didn’t follow instructions on the mounting of the elevator servos. I decided to mount the servos inside the stab half instead of the stock way were you need to cut a big hole for the servo case to fit into the fuse. I took this idea from a German website that has build pictures. You will find it really useful. http://www.weinig-web.de/impact.htm


I made the rudder removable which was pretty easy since they use Robart hinges. This will allow me to ship the plane. I can get some picture and do an in depth here if people want me to.

Landing gear
I verified that the mold marks in the fuse for the gear exits were equally spaced. Cut these out before sanding and fitting the gear formers. My formers needed a bit of sanding to line up properly.

Firewall
The firewall is not a perfect fit. I had pretty good sized gaps between the fuse and firewall at the bottom and where the fuse bulges on the sides. I am putting in a Hyde ARIAS mount so I needed a bit beefier firewall then what was included so I cut a new one out of ¼ end grain balsa carbon. If you are going to use a soft mount with a separate nose ring the included firewall will be strong enough. Basically you will fit the stock fire wall and use some ply to fill in the gaps.

Control Horns
The stock control horns will work if you are comfortable with using standard metal clevises. I figured it will eventually get sloppy and they do not recommend using ball links on the stock horns because of twisting. So I ordered some .074 Uni carbon from Aerospace Composites. I cut out new horns and they should be more then stiff enough to handle ball links.

Only other thing I’m doing different is that I’m using carbon pins and a 4-40 bolts to hold the canopy and chin cowl instead of their method. If you have any more questions I will be happy to try and answer them. Go to the German website because for me a picture is worth a thousand words. If you want some pictures of mine I would be happy to do that as well.

RE: Impact
 

Fishgod, what are you using for Aileron servos? Im wondering if a midsize, 9311sa, will fit in the cutouts given.

RE: Impact
 

The holes are cut out for 8411's. You would probably have to make an adapter plate for the 9411. I am using Hitec 5975HB digitals. They are coreless motor/composite gear digital servos. I have been using them all summer and I have been very happy with them