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Feb 17, 2010, 11:59 PM
8000 Watt Club
Geoff Dryer's Avatar
Quote:
Originally Posted by sscherin View Post
Geoff.. WIll you be attending the IMAC contest in Richland, WA or Zillah?
I'd love to see that setup in person..
I plan on attending both of those contests this year. Hopefully I will see you there!
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Feb 18, 2010, 12:02 AM
8000 Watt Club
Geoff Dryer's Avatar
Quote:
Originally Posted by Gerry B View Post
I might have some shrink tube Kicking around for you
I did a search today and I found some 1/8 inch. Thanks for the offer.
Feb 18, 2010, 09:53 PM
8000 Watt Club
Geoff Dryer's Avatar
Final Push

I got quite a bit done in the last couple of days. After I figured out where the batteries needed to be for balance I installed a tray for the A123 packs.


It took a little thinking to come up with a tray for the flight batteries. The hardest part was designing it to hold the 4 x 6S-5800 batteries securely but permit the tray to be adjustable. I think that my design is okay because no matter how hard I shake the tray the batteries do not move.

The bottom row of batteries include velcro and the top row uses grip tape (sandpaper) to create friction. I am using one 2 inch wide velcro strap. The tray will be fastened down using 6 bolts and blind nuts. I will be able to move holes to adjust the tray position.

I also added a plywood baffle under speed controller to force air through other holes that I drilled in the side and top of the firewall. I want to make sure that there is good airflow around the batteries.

All that is left is to install the wiring between the ESC and batteries and the Deans shunts (2).
Feb 18, 2010, 11:11 PM
Registered User
Scotte 540's Avatar
Maiden this weekend?? Looks like perfect weather.........
Feb 18, 2010, 11:48 PM
Bigger is better
ibange's Avatar
Have you had a chance to weigh the plane yet with all the packs and everything installed? I'm really interested. Essentially you are 400mah short of running the exact same power system I have installed in my 40% cap.
Feb 19, 2010, 01:55 PM
8000 Watt Club
Geoff Dryer's Avatar
Quote:
Originally Posted by Scotte 540 View Post
Maiden this weekend?? Looks like perfect weather.........
It does not look like I will get it competed in time to fly this weekend. I also want to do some ground testing with different propellers before attempting the maiden.
Feb 19, 2010, 01:57 PM
8000 Watt Club
Geoff Dryer's Avatar
Quote:
Originally Posted by ibange View Post
Have you had a chance to weigh the plane yet with all the packs and everything installed? I'm really interested. Essentially you are 400mah short of running the exact same power system I have installed in my 40% cap.
I see that we are about at the same level of completion with our projects!
I am looking forward to seeing how your 40% performs.

I am curious about the weight but I will wait until I have all the wiring installed before I check.
Feb 20, 2010, 11:38 PM
Registered User
Looks great Geoff, Looking forward to the Maiden.
Feb 21, 2010, 07:03 PM
8000 Watt Club
Geoff Dryer's Avatar
Quote:
Originally Posted by jacob davis View Post
Looks great Geoff, Looking forward to the Maiden.
Thanks.

Unfortunately I will be a way for a week so the completion of the wiring will have to wait.
Mar 04, 2010, 11:46 PM
8000 Watt Club
Geoff Dryer's Avatar
Wiring For Power

I had a weeks vacation (out of town) but this week I did manage to get a couple of nights work on the wiring. I am pretty much committed to Deans connections so I replaced the bullet connectors on the Turnigy batteries. I realize that the Deans plugs may not handle as many amps but I am aiming for only about 75 Amps from each bank of batteries.

I am using Turnigy 10 gauge wire with two separate runs to the two connectors on the Jeti ESC. I am also using two external Deans shunts for arming.I used the existing hole for the switch to mount the shunt assembly. It was easier to solder the fuse side shunt connections first before mounting the assembly to the fuse.

I have a push switch for the anti-spark charging circuit.

The wiring is very short thanks to the close proximity of the batteries to the ESC.

Just a few things to tidy then I can program the ESC and run some motor tests. I am aiming to maiden two weekends from now.
Mar 05, 2010, 07:12 PM
8000 Watt Club
Geoff Dryer's Avatar
Build Complete

I have run out of things to do!
Sunday I will do motor tests to measure thrust, RPM and amps.
Mar 05, 2010, 07:17 PM
Epic Huckin'
paintball_kidz's Avatar
Looking good, are you gonna maiden this one at burnaby lake?

Are you comming to the field tomorow btw?
Mar 05, 2010, 10:12 PM
8000 Watt Club
Geoff Dryer's Avatar
Quote:
Originally Posted by paintball_kidz View Post
Looking good, are you gonna maiden this one at burnaby lake?
Are you comming to the field tomorow btw?
I am hoping to maiden next weekend at Chilliwack. Might ruffle a few feathers flying a 35% plane in a public park!

I am off to the Mini IMAC contest tomorrow in Bellingham. I would have liked to fly the Extra but I will fly my 33% Sukhoi instead.
Mar 05, 2010, 10:42 PM
Registered User
RiBell's Avatar
Quote:
Originally Posted by Geoff Dryer View Post
I am hoping to maiden next weekend at Chilliwack. Might ruffle a few feathers flying a 35% plane in a public park!

I am off to the Mini IMAC contest tomorrow in Bellingham. I would have liked to fly the Extra but I will fly my 33% Sukhoi instead.
It would have to be next weekend.
Would like to have come out and watched.
I've had last weekend and this weekend off so I'm working for the next 2
Rick
Mar 05, 2010, 11:56 PM
Registered User
Scotte 540's Avatar
Quote:
Originally Posted by Geoff Dryer View Post
Build Complete

I have run out of things to do!
Double & triple check everything!! Take some vid!!

Good Luck!!


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