[NSRCA-discussion] D.E.P.S (Dual Elevator Pushrod System)

[Amram Leshed]

Dear all,

Thank you to all answers. 

The Airplane is CPLR Oxalys (made by TS Composite).

Studying the answers I found that the decision upon this issue will be based
on CG location and total weight saving requirements.

As a result I will delay the decision on this toward finishing the plan.
Then I assume I will have better idea of the CG positioning and total
weight.

Thanks to all.

Amram Leshed

 

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From: Keith Black [mailto:tkeithblack at gmail.com] 
Sent: Wednesday, November 22, 2006 2:14 AM
To: NSRCA Mailing List; amram at leshed.com
Subject: Re: [NSRCA-discussion] D.E.P.S (Dual Elevator Pushrod System)

 

Amram, I would agree that the DEPS system is indeed a good system, however,
I don't think it's particularly necessary. I've done both DEPS and stab
servos each with very good results (as long as you have good servos in the
stab). I used the micro JR digital DS3421sa servos.

 

Some would argue that the DEPS design has more precise movement between the
elevator halves, I can't argue with this, but many top fliers are competing
and winning with the dual stab servos and I personally have had no complaint
about this setup.

 

Vince is correct, you do have to be careful to make sure the plane isn't
tail heavy with servos in the stab, but if the plane was designed for this
it will probably be OK.

 

To me the biggest benefit to the stab servos is they are much easier to
install. If effort is not a factor the DEPS system is theoretically more
accurate, if you're looking for an easier install go with the stab servos.

 

Keith Black

----- Original Message ----- 

From: vicenterc at comcast.net 

To: amram at leshed.com ; NSRCA Mailing List
<mailto:nsrca-discussion at lists.nsrca.org>  

Sent: Tuesday, November 21, 2006 8:11 AM

Subject: Re: [NSRCA-discussion] D.E.P.S (Dual Elevator Pushrod System)

 

Amram,

 

Check here.  

 

http://www.rcuniverse.com/forum/m_5018286/anchors_5018286/mpage_1/key_/ancho
r/tm.htm#5018286

 

I used the DEPS system in two planes with very good results.  You will need
to consider CG.  With the DEPS system the chances of being tail heavy are
less.  This happen in one of the planes and I retrofitted the plane from 2
servos in the tail to DEPS system to fix the "tail heavy" problem.

 

Vicente "Vince" Bortone

 

-------------- Original message -------------- 
From: "Amram" <amram at leshed.com> 

> Hello, 
> Can someone provide me with some practical information as to 
> The Central-Hobbies D.E.P.S ? 
> Pros, Cons etc. 
> This is for my new 2M full-composite F3A airplane. 
> For the moment I am considering 2 options: 
> 
> 1) D.E.P.S (Does anyone knows the D.E.P.S weight?) 
> 2) Dual-Servos on H.Stab. (Any suggestions for the proper servos will be 
> Highly appreciated). 
> 
> Thank you in advance to all answers. 
> Amram Leshed 
> F3A Israel 
> 
> _______________________________________________ 
> NSRCA-discussion mailing list 
> NSRCA-discussion at lists.nsrca.org 
> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion 


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