Author Topic: finished Impact (Read 2921 times)

Steve Bakac · « **on:** December 15, 2012, 06:05:47 PM »

G/day Guys
Just finished my Arc Impact from Steve moon ,went together really well,no real hicups.Only change was that i took out crimped leadouts n redone them wrapped.Came in at 68oz ready to fly.
Test flight shortly

Bucky

Steve Bakac · « **Reply #1 on:** December 15, 2012, 06:07:48 PM »

Just a few more

Dan Bregar · « **Reply #2 on:** December 15, 2012, 06:54:55 PM »

Bucky

Nice job mate ! What motor, batt. & ESC are you using ?

Steve Bakac · « **Reply #3 on:** December 15, 2012, 07:54:11 PM »

Hi Dan
Running a Emax 2832/05 , ZTW 50amp esc , KR2timer ,3300 turnigy battery and starting with 12 x 6 pusher

Bucky

john e. holliday · « **Reply #4 on:** December 16, 2012, 03:21:23 PM »

Another awesome looking stunt plane.

Howard Rush · « **Reply #5 on:** December 16, 2012, 03:31:08 PM »

With hatches both on top and bottom, I'd worry about the nose falling off.

Dennis Adamisin · « **Reply #6 on:** December 16, 2012, 09:33:48 PM »

Great color scheme - simple and to the point. Weight sounds good too.

Steve Bakac · « **Reply #7 on:** December 17, 2012, 02:57:37 AM »

Thanks guys for the compliments

G/Day Howard It only has the top hatch to hold battery in when locked down and the side are extended down and shaped so no need for a cowl , bottom is left open for cooling , I also have a ply battery floor glue in to stiffen the nose up as well corner gussets in and around it as too the ply motor mount which goes almost the the bottom of side.As well i have left about a 3/32 of the bearers in .Hope this help

Steve

Howard Rush · « **Reply #8 on:** December 17, 2012, 02:39:45 PM »

I have been interested in trying a top hatch, but a structures guy familiar with this airplane advised me against it. I'm looking forward to seeing how yours works.

It's good that you have cooling air going to the stuff that needs cooling. Mine didn't, so I had to make silly internal ducts.

We have found (PW has found, and eventually convinced me) that the battery CG for these airplanes should be approximately at the wing centerline. Looks like yours is closer than where mine started.

Pretty airplane. I think the aft section color is particularly tasteful.

PJ Rowland · « **Reply #9 on:** December 18, 2012, 07:50:04 AM »

CG at wing center line ?

So does that mean evenutally we will see a redesign for ELC specfic lifting wings with a more rearward highpoint?

Howard Rush · « **Reply #10 on:** December 18, 2012, 12:55:50 PM »

Vertical battery CG.

Steve Helmick · « **Reply #11 on:** December 18, 2012, 07:46:00 PM »

Quote from: Howard Rush on December 17, 2012, 02:39:45 PM

Pretty airplane. I think the aft section color is particularly tasteful.

Yes, nice yellow! Surprised the rest isn't Kelly (?) Green, tho.

Steve

Ron Heckler · « **Reply #12 on:** December 18, 2012, 09:21:08 PM »

Looks good Steve. Lots of luck with it.

Ron

Andrew Borgogna · « **Reply #13 on:** December 18, 2012, 11:07:29 PM »

Yet another electric wonder from the land down under!

Really nice.
Andy

Dean Pappas · « **Reply #14 on:** December 19, 2012, 06:53:45 PM »

Quote from: Howard Rush on December 17, 2012, 02:39:45 PM

I have been interested in trying a top hatch, but a structures guy familiar with this airplane advised me against it. I'm looking forward to seeing how yours works.

It's good that you have cooling air going to the stuff that needs cooling. Mine didn't, so I had to make silly internal ducts.

We have found (PW has found, and eventually convinced me) that the battery CG for these airplanes should be approximately at the wing centerline. Looks like yours is closer than where mine started.

Pretty airplane. I think the aft section color is particularly tasteful.

Hi Howard,
Do you mean that he suggested to center the "massive" battery vertically on the leadout position?
Is this for some dynamic balance issue?

Thanks,
Dean P.

Howard Rush · « **Reply #15 on:** December 19, 2012, 08:47:40 PM »

Just to be clear:

Steve Bakac · « **Reply #16 on:** December 20, 2012, 12:36:33 AM »

Thank you Howard understand clearly and I will try this .

Test flown and with all the cooling i have it still over heated badly from the motor , Esc n battery. Back to the drawing board .Set up im running was 12/6p n 13/5.5 WP set 9300rpm 4s 3300 battery put 2140 back in after 5.30min flight. more cooling i suppose to handle the 40c heat here in the outback.

Steve

PJ Rowland · « **Reply #17 on:** December 20, 2012, 06:30:39 AM »

Steve : Are you goign to the Nats ?

Dean Pappas · « **Reply #18 on:** December 20, 2012, 10:19:19 AM »

Quote from: Howard Rush on December 19, 2012, 08:47:40 PM

Just to be clear:

Hi Howard,
Sure enough, that was clear. Now, WHY?
This should be educational, no?

Dean

Howard Rush · « **Reply #19 on:** December 20, 2012, 01:05:06 PM »

Quote from: Dean Pappas on December 20, 2012, 10:19:19 AM

Now, WHY?
This should be educational, no?

It's a Mystery of Stunt. Putting the battery on the wing centerline is just a rule of thumb, and applies only to Impacts as far as I know.

Steve Bakac · « **Reply #20 on:** December 20, 2012, 02:00:14 PM »

Hi PJ
Yep Ill be there but wont be bringing the Impact for this one just haven't got time to work on it .So ill bring my old fatefull (Europa).

Will you be there with your newie or you still buffing the wheels?

Steve

PJ Rowland · « **Reply #21 on:** December 21, 2012, 04:30:34 AM »

Steve : No wheel's were buffed out ages ago..

I'l have the new one....... yes.

I just hope I can test fly and trim prior to the Nats.....