Looking for light servo extensions: ABBRA

[vicenterc at comcast.net]

Thanks Keith.  See below in CAPITAL letters.

Vince

-------------- Original message -------------- 

> I agree with Chris. 
> 
> Other ideas (which you may already have done) to reduce weight for NATS: 
> 
> 1. Lightened back-plate on the spinner.  THE SPINNER IS ALREADY LIGHT BACK PLATE.  
> 2. Remove wheel pants.  YES, WE ARE CONSIDERING.
> 3. Smaller fuel tank.  14 OZ FOR THE ZDZ 40.  I THINK THIS IS THE SMALLER WE CAN GO.
> 4. Lithium battery. I AGREE. THE AIRBORNE IS ALREADY LITHIUM. WE HAVE NIMH 5 CELL NO REGULATOR FOR THE IGNITION AND PLANING TO GO LITHIUM.  WE DISCOVERED THAT THE IGNITION CAN NOT WORK OVER 6.2 VOLTS SO NEED TO GO DOWN TO 4 CELLS OR SMALL LITHIUM WITH REGULATOR. 
> 5. Remove voltage regulator if you're using one with 5 cell battery. 
> 6. Remove switch and plug in each time powering on RX (really need removable 
> canopy for this). NO CANOPY. BUT WE HAVE HEAVY DUTY SWITCHES AND WE COULD GO LIGHT DUTY.  I WONDER HOW MUCH WE CAN SAVE HERE
> 
> Sounds like you're already doing VERY well being that close with a gas 
> engine. Hope you make it, it would be great to have this as another option! I THINK WE WILL BE OK.  THANKS, VINCE
> 
> Keith Black 
> 
> ----- Original Message ----- 
> From: "Chris Moon" 
> To: 
> Sent: Friday, April 08, 2005 12:52 PM 
> Subject: Re: Looking for light servo extensions: ABBRA 
> 
> 
> > You can buy lighter gauge extensions, but with digital servos and long 
> > runs, that might not be what you want to do as you will get a greater 
> > voltage drop with the lighter wire when your servos are demanding large 
> > amounts of current. Personally, I would look somewhere else to save 
> > weight. I just switched my DuBro light weight 3" wheels for the super 
> > light ones (soft foam) and saved 1oz per wheel. Of course they won't 
> > last as long, but it will help you will make weight. Also, you can run 
> > a smaller battery pack for competition. Last yr at the NATS I switched 
> > out my 1650nimh for a 650nimh and saved 2 oz. I charged for safety 
> > between rounds, but since you usually have some time that's not a big 
> > deal. I'm anxious to get a flight report as soon as it is in the air. 
> > 
> > Chris 
> > 
> > vicenterc at comcast.net wrote: 
> > 
> > > Hello all, 
> > > 
> > > I need suggestions to make servo extensions as light as possible. This 
> > > is for the new ABBRA with gasoline engine and we have the servos in 
> > > the back to better balance the plane. I think we can save some weight 
> > > if we can get very light servo extensions. We are using 4 digital 
> > > servos JR 3241 in the tail. One for each elevator and two pull-pull 
> > > configuration for the rudder. The plane right now is about 6 oz over 
> > > 11 pounds and we are looking for places to reduce the weight. 
> > > 
> > > Thanks, 
> > > 
> > > Vince 
> > 
> > 
> > 
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