RCMF

Level 1 => Gliders & Gliding => Flat-Field => Topic started by: dogshome on July 10, 2015, 20:12:44 pm

Title: Blaster 2 servos
Post by: dogshome on July 10, 2015, 20:12:44 pm
After so much fun with the Elf, I bought a Blaster 2.

In the Elf I have Gening 531 servos. These are fast, strong, cheap and have fabulous resolution even on the tiny movements needed for the all moving elevator  :af  "0.6kg"

So, I also have four 541s in the garage, my only concern is if they are strong enough for ailerons. Most 5g or 9g servos are too thick (9mm or less needed) and SD100s are quoted for the B2 at "1.1kg" stall.

The 541s are "0.7kg". But in perspective, the flying weight is going to be less than 300g (think indoor shock fliers).


Thoughts?
Title: Re: Blaster 2 servos
Post by: Butzi on July 11, 2015, 18:48:39 pm
IMHO SD100's will be spot on.  I'm using 4 of them in my Blaster 3SC without issue.
Title: Re: Blaster 2 servos
Post by: dogshome on July 14, 2015, 21:21:57 pm
541's it is then.
Title: Re: Blaster 2 servos
Post by: Bad Raven on July 15, 2015, 14:35:25 pm
I'm pleased you like Gening servos, but its contrary to my experience of two sizes for Libelle and Vagabond, both types proving to be absolutely abysmal!

Terrible resolution, slow speed stick movement causing erratic action, unpredictable centering, jigging, and premature failure.

The Libelle gained SD100's and the Vagabond Savox, both types instantly superior in every respect.
Title: Re: Blaster 2 servos
Post by: dogshome on July 15, 2015, 18:39:23 pm
I've only got the two in the Elf. The elevator being all moving and on a very short arm and limited endpoints is asking a lot of a servo , but it's very good. Even with cofg well back and increased sensitivity its one of the best.

To the extent I'd use more for the indoor fleet.

Maybe they have improved recently. Black cases now, not transparent?

P.S. I agree about Savox. No trouble with those.
Title: Re: Blaster 2 servos
Post by: dogshome on August 31, 2015, 08:45:16 am
They work well. It was cloudy all day, no sun and yet I still caught a tiny thermal yesterday.  Got to a couple hundred feet by pirouette from about 15m and drifting with the wind. Very funny, to watch.

My launch is rubbish. The Elf just needs a half spin and fling to get over 20m. That doesn't work for me with the much larger Elf.

I (and a friend) were getting around 20m by the end of the day, but much more practice needed.

Flaps at lift position are like engaging helium balloons and at landing setting almost anti gravity.
Title: Re: Blaster 2 servos
Post by: Bad Raven on August 31, 2015, 12:47:29 pm
Excellent then!

For the record, my rubbish Genings were black cased.
Title: Re: Blaster 2 servos
Post by: dogshome on September 14, 2015, 19:09:40 pm
I stripped a gear on the bench. Plugging in to charge smart lipo with tx off and one aileron on a wooden table causing the wing to jump up.

Initially grumbling, but then these are a tiny 4g servo; operating a very stiff and relatively huge large carbon aileron; with huge travel and no flex! So forgiven. Doing similar with a depron aileron (flexi as you like, even with carbon rod supports) is relatively risk free.


Note to self - be careful powering up high performance DLGs!   :-\