Making the Stratus quicker ?

[Daniel Jetschin]

I fly my Stratus since a month and am not satisfied with it. The cyclic rate isn´t quick at all (for me) and I´ve already done Eric's cyclic mod, I have V paddles on and also a longer flybar. The servo travel is maxed out w/o binding and I'm running 690´s V's @ 1900 upm. The collective could be faster too... My raptor was 500g heavier and hasn't had 18kg's on collective but it still was alot quicker. Or is MA the wrong choice for me :dontknow

[Rada70]

First let me say you made the right choice by purchasing the stratus. how much cyclic pitch are you running?

[Daniel Jetschin]

Hi

About 8 degrees right now. Forgot to mention the paddles were 95mm and that I'm using the inner hole on the flybar carrier and also the inner one on the flybar bridge. The engine doesn't bog much too.. And I have to say that I purchased not just one but 2 :wink: But I compete at 3DM and am not even happy with my new machines :DOH

[tnreefguy]

Try a shorter flybar. Short = faster responce.

[cwbonner]

I know I may get some flack for this, but we have done a few subjective paddle tests on a Raptor 90SE. We tried MA paddles, 95mm V paddles, the red TT paddles, and Freya paddles. The fastest setup was the Freya paddles without the weights, followed by the MA, V and TT paddles. One of the guys with a stratus put an EVO 90 flybar and paddles on his Stratus and it made a big difference in cyclic response. Might be worth a try.

[Daniel Jetschin]

A longer flybar makes actually a QUICKER response, not a shorter one.

[DavidH]

A longer flybar makes actually a QUICKER response, not a shorter one.

Yes and No.
I believe most of the pilots here are using the 0566-1 flybar. It is 480 mm long.

If your using the a flybar longer than 480 mm I would think that is part of your problem.

I use a 550 mm on my FAI heli to make the heli a little more stable. With a shorter flybar I have to tame the controls down electronically because it is a little too quick off neutral.

David

[ChrisLaFollette]

I think Matt and Eric run an 0303 which is what I run.

[EricLarson]

0303 is faster

0566-1 is a bit more stable. I have this one in it for XFC.

I run about 7.5 degrees cyclic and 11 degrees pitch. Paddles are SAB 20g and the flybar carrier is in the middle. Mine is a bit faster than Matts setup.

Run 1850 - 1900 rpm head speed. 690's will be slower than 710's believe it or not. The reason is that you are putting pitch into the blades and the blade pitch and surface area make the machine move. Less blade area = less thrust. Also motor is a huge factor. A very strong running OS on the right pipe will roll 25% faster than a weak motor.

Also take blade weight into consideration. I run very heavy blades most of the time (185-195g) but 170g blades or so will be much quicker. Less stable but quicker.

The way the head and ratios are on the Stratus a longer flybar will be slower. We are using blade cyclic to fly the machine and the paddles are there for stability. Lengthening the flybar will give the head more stability.

[Daniel Jetschin]

That's weird but thanks for the replies. On every helicopter I had before a longer flybar was always faster in rolling and flipping, and of course more stable in hover. With a longer flybar the paddle tip speed increases and so does the volume of air that get's moved from the paddle :shock: Lighter blades have also less auto energy and because of this I would stick with my 180 grams. Next point, the slow collective. I use 9252's with 14mz on 5.1 volts and on the bench they seem real quick but as an example when I pull the machine off the ground for a flip start and when it's vertical I flip the collective stick down, the reaction begins with sorta 'delay'. Also when I want to stop it a few inches off the ground I have to think ahead too because it won't stop where I want it to stop. In my raptor I haven't had this problems, I used a single KoPropo on collective with 0.06 sec and about 6.5 Kg's (18 Kg's on both of my stratus but 0.1 sec ) can that make THE difference ?

[EricLarson]

Probably not. Motor, head speed, paddles, blades, and your ratio's will make the difference.

[00boto]

I've actually switched over to a 555mm flybar.

Matt

[Daniel Jetschin]

Today I installed the Kopropo´s and went out to the field... Spooled her up and it instantly locked out, banked to the left and met terra firma :arggg: :arggg: :dontknow damnit ..

[DavidH]

You have enough battery to power those KoProp's?

It locked out? So I am guessing you don't have failsafe set on the throttle to go to idle?


David

[Daniel Jetschin]

News. It didn't had a lockout but me myself and I the new moron dork of the month haven't checked the swash function for right directions. Just collective and elevator but not aileron. So it was just reversed :arggg: :arggg: :arggg: :arggg: :arggg: :arggg: :arggg: That HURTS

[Daniel Jetschin]

New attempt new luck :D

[DebianDog]

Well the good news is you can try a different flybar length now! :lol:

Sorry man I hate crashin' :?