Does anyone else have the new Freestyle Rush form YT International/ESM?

It was advertised for $185 AUD (cheap!) and the info on the manufacturers web page ([link=http://www.ytinternational.co.uk/main/aerobatic/esmaerobatic/rush/rush_spec.htm]click here[/link]) looked good so I thought I'd take a chance and order one without having seeing it in person or on RCU. Two days later, I was greeted by a courier sporting a tall cardboard box. Hooray

The box had been slightly crushed towards one end but the contents didn't seem damaged. I gave the major components a good squeeze, twist, rattle etc to check for damage. Everything seemed OK so I took the parts out of their plastic bags and took some pics.

Your opinions?

Ive seen one go, a us company renamed the esm planes and sells there here.. one I seen fly didnt do any 3d, just flying around

Looked to fly ok, I have its bigger brother the cyclone hanging in the garage unflown yet...

I have its bigger brother, adrenalin 120. I am in the process of building it, but there are no mods to make. all looks very good to me for the money

Kris

JohnVH, Kris, the Cyclone looks great but it wouldn't fit in my car so I'm limited to the little brother for now.

How do you rate the instruction manual for the Cyclone? I think the instruction manual for the Freestyle Rush is pretty poor especially when compared to the You-Can-Do 3D instructions. It is 12 pages as compared to the UCD's 28 pages and is based on photo's and illustrations with limited text instructions. The first thing I noticed was that there was no list of kit contents so I can only assume I'm not missing any parts. The instructions are lacking in detail regarding engine right thrust. The thrust line is laser cut into the firewall and is is centered horizontally. The instructions don't give measurements for the engine mount holes but show them as being centered also. This would yield no right thrust at all. Any suggestions?

The instructions show the elevator servo mounted inside the fuse with a push rod connected to the left elevator half and a U wire between the two elevator halves. Problem is the push rod exit cutout shown in the instructions doesn't exist on the fuse. Instead there is a servo cutout to mount the elevator servo in the tail. I dont like the U wire idea as there is no redundancy if the master elevator half is damaged. This setup would be fine for a trainer but is not ideally suited to a 3D machine with large control surfaces and the risk of elevator flutter. So far, my options are to mount the elevator servo in the fuse and run a split push rod out to the elevator halves or to try and fit two elevator servo's in the tail. I would probably need to use mighty mini servos and stagger them one above the other but from opposite sides of the tail. This would require a little more surgery. What do the experts think?

Otherwise, I'm pretty happy with the kit so far. The design, wood quality and covering material are all good and I like the pull-pull rudder set up with the control horns in the middle of the rudder. I just need to wait a few weeks for an OS FS-70 and radio gear but this will give me time to ponder the issues above.

Nothing wrong with a single elevator servo and a staple attatching the two halves on this size plane. This assumes that the servo is more than a normal standard servo and the staple is at least 3mm wire.

If you want to see how they fly, come down to the illawarra model aero club. We have about 6 in the club at the moment, and more comming. I have flown one with a os 46 in the front. It went ok but didn't have the punch that it needed when it started to fall out of a hover. As a cheap sports/pattern plane they are great. The one that I flew wasnt setup for full 3D but the potential was definately there. A supercharged YS or even an os50 would be a really good match for this plane.

Matt

Thanks for the info & invitation Matt. I might just take a Sunday drive to Illawarra in the next few weeks.

Can you tell me how the guys at your club have set up their elevator servos. Also, is anyone using a FS-70 engine. Cheers.

BTW, I found some more manufacturers info [link=http://www.eversoaringmodel.com/Web/productsnew.htm]here[/link].

JR...

G'day.. ..just leaving to go flying..have a look on the " Cyclone...6 feet of ...." blah.. blah.. thread...maybee some interesting stuff for ya......didnt Know YT hadgot to Australia yet...had my hands on a FR when i fetched the Cyclone ...same great quality/engineering...little bruv stuff yeah. Talk to ya later ... Allso " U-can-do 60 " thread may interest

Allo, Allo , Allo Thanks for the info Dave.

I've been following the Cyclone thread and have also read the thousands of UCD posts. The YCD's don't seem to be widely available in Australia so I'm hoping the Rush will be a good substitute for a YCD 46 when learning 3D.

I'm going to leave my decision on the elevator servo connection until I have the engine mounted. Then I can try the different combinations and see how they effect the CG. I'm thinking of using the following radio gear:

JR 770 Rx
6V 2000 mAh NiMh Rx battery
1 x HS 325 for throttle
2 x HS 425 for ailerons
2 x HS 635 for elevator & rudder

What do you think. I'm aiming for a good compromise between price and performance.

JR...
Hello again..

Looks a good set up..its allways a compromise...at the end of the day....when all ya homeworks done... it's whatever you are happy with...the only thing i do try to do though is keep things as simple as possible[:-]...the least there is to go wrong ...the better...if you've got any photo's.. lets have a squint....thats allways great when your the other side of the planet

I had the same elevator ...whats the word...concern...yes thats it... with a bigish spitfire..in the end i had to do the dual servo thing ... see how you go ...keep in touch..!..Dave

P.S....Oh ..nearly missed this .. you should'nt go far wrong with the O.S. ..i've got a FS.52...FS.70....FS.91IIP & FS1.20IIIP......91FX...46FX ..right down to a .46LA in Peters trainer..thier fine

P.P.S....Manual is a bit basic, but i think it assumes this is'nt your first model...you should be fine....any probs ...just holler....someone around here is sure to be able to go round it with ya..

Dave,

Seems It's not only me spouting on about O.S.'s then...

My friend Ken had my Rush and fitted a tigre .51 with a 6Kg Hi-Tech servo in the back for elevator. Must admit it doesn't seem to have any problems with twisting. If it was me though I think I would have gone with maybe 2 HS-225's on them instead or similar.
I've got to agree with mc71 in that it could do with more for proper 3D'ability.

We're just testing the new Twister, imagine the Rush but lighter. I've unfortunately squidged mine after engine failure whilst prop hanging, I guess that's me of Wils' crimbo list. Don't hold your breath though, it won't be available for quite a while yet.

How'd the mixing go anyway?

Sym.

Noone down here is using a 70 yet that I know of. The os 46 is a good combo for sports flying, the os50 is much stronger, it seems like a good combo for pattern style stuff but I still wouldnt do any low down hovering just in case. The best setup ive seen is a YS 63. I'd trust the plane completely right down to the ground with this setup (but it is sustantially more expensive to buy and run). I think the os 70 would give the same sort of performance as the ys 63 so you should be very happy with the plane. I'm having too much fun with the small electric 3D planes to get a FR right now but I really do love flying everyone elses.

Matt

Matt,
A man after my own heart... I still get to fly my old Rush, and it doesn't cost a penny. Mental note to self, must give more planes to friends!

What leccy's are you flying, I fancy one of those shockflyers! We've just drawn up a miniature Adrenaline for electric, should be fun.

Sym.

Hi Guys
I have had a Rush with an OS91FSII in it. I sold the complete package, but still get to fly it:-)
With a Bolly 13.5x6 prop, I would put it into a hover on takeoff, hold it for a while and blast off. With this set up I could get the plane to fly the PO5 pattern. Actually, I bought it to practice PO5 and only did once.
The Rush is an excellent 3D, hotdogging and pattern model. Hats off to the designer.
I sold the Rush to get the Cyclone you guy are talking about. I have a YS140FZ in it swinging an APC 18x6w. It is an awesome combo.
A guy at the field has the Adrenalin with a OS91FX in it. Does all the 3D stuff with ease and flies F3A very well. I liked to fly it slow and low doing point rolls, rolls and rollers. Kinda bummed I had to give the sticks back.
I would have to say the Adrenalin is the pick for me. I can't wait until mine shows up. It will be getting the YS140FZ in it.

Cheers

Buzz

Sym..
Yeah,... .caught me out there ...O.S..." Nice " and i deliberately understated it...O.K ...." Twister.." whats it look like... 1.40 YS in th Cyclone i did go round that option ..the 1.10 tho....but i've got his Paranoia about puffed up fuel tanks, 30% N & all that....a sort of airborn molatov cocktail.. the jurys still out on this one...i'll waz over to the Cyclone thread to keep it all lined up ..after what you said about FF7's etc...been and bought a new TX...more later .Dave.

Just a quick P.S ...electrics have been mentioned in this thread ..so...Maidened Peters lil electric @ w/end ..really impressed im ashamed to say..i always Poo-Poo'd electrics..[:-]

Buzz,
Wow I guess you are not keen on underpowered planes then

Ali ...
Very nice way to put it........i'm a little apprehensive about the 1.20 in the cyclone....[:-]....certainly should eliminate any possible airframe integrity questions....period.

It's reassuring to see that people have only good things to say about the Rush, Adrenaline and Cyclone so far. Has anyone had any problems with theirs? Today is pay day so I can finally buy some 30 min epoxy and start construction of my Rush. I will also be placing my order for the 70FS. Just received an e-mail from Tower Hobbies to say that HS-635 servos are back in stock but they will have to wait for now. Stay tuned for some construction pics.

Since you guys bought up electrics, Here are a couple of pics of the Mk IX Spitfire park flyer which I am scratch building from plans on the www. It's the same size as the Kyosho Spree in lord lucan's post and will use the running gear from my GWS Mustang.

Ali

I guess I have been flying long enough to know what I expect from a plane, how I want it to fly and how to power it. I have flown a mates Rush with a Saito 72 and it was easy to fly. It didn't need much throttle management because you were either flat out or idle. (The Rush and engine combo was his second plane. I would have to say it was perfect for him. Don't get me wrong, he flew his trainer very well and I suggested he get a Rush after I let him fly mine.) This set up was good for sport flying but wouldn't fly F3A or pull out of a hover.

Lord Lucan
The Cyclone will handle the YS140FZ with ease. I would only open the tap with the nose pointing up. If the guy flying it wasn't very good at throttle management, I would agree with you. I think we have all stood in the pit area watching planes takeoff at full throttle and the throttle only goes to idle for landing. (except for jets, racers etc...you know what I mean) Actually, on the cyclones 2nd flight the throttle got stuck at idle. (my bad) If I had to fly the plane around with the throttle stuck wide open waiting for it to run out of fuel, I wouldn't have had a plane left.

IMO....if anyone is thinking of getting one of these planes....do it, you will love it.


Cheers

Buzz

I don't like posting this but I guess the reason i'm posting is because i'm still keen on finding the fault on mine. Ali has been more than willing to help and i'm sure that i'm missing something small or there is some small solution. My Rush snaps out very violently if the elevator throw goes more than a 3/4 inch. This happens at all speeds, slow and fast. This means that I can't even think of doing any 3D. We are very high above sea level and well the wing loading on the plane is a little high. Flying mine on an OS .46 now, doesn't have enough power to hover or pull a nice big pattern loop. Tried an Irvine 61 but because of the snap problem took it out again to try and get wing loading down. Start to think that there might be another solution out there. I hope you guys keep expanding this thread, maybe someone will find a similar problem sometime and can find a solution.

I still enjoy just racing mine around now doing knife edge passes and point rolls. It still entertains me.

Hi Spacey

There were 3 Rushes at our field. Mine with a OS91FS, one with a Saito 72 and one with a OS91FX. I have flown them all and the one that would snap out was the OS91FX powered one. He had 2 servos in the back of the plane. IMO it was too tail heavy and made it too unstable. It was actually unpleasant to fly like this. Mine had one servo in the back and it was very stable with 45dec elevator throw. Try moving the cg forward a bit more. Let me know how it goes


Cheers

Buzz

Buzz
Mine has all the servos in the front. I've put pull pull systems on both elevators to remove all the slack and the plane is laterally balanced. You can't maybe give me your exact measurement of your CG from the LE at the root of the wing please? From reading all the funtana problems and the guys saying that moving the CG back helps? I'm a little confused with this concept. Mine was also VERY unpleasant to fly. The whole white knuckle thing you know, you never knew when it was going to flip over a couple of times

Buzz, are you saying the OS70FS won't be able to pull the Rush out of a hover? Should I lash out and buy the 91?? BTW I see you are at Canberra, the altitude there is 1886ft (at Canberra Airport) whereas I will spend most of my time flying at 67ft. Also, I should mention that this is my third plane but I am confident in my flying skills and ability to exercise some throttle control.

Is there a program which can be used to compare engine performance based on engine size/type, weight, prop, altitude, temp etc...? I've seen this type of thing for electric planes (eg motocalc among others) but haven't heard of one for glow engines.

Get a Saito 72, lighter and more powerful than the OS 70. Or even better get the YS 63.

If you want a 90, get the Saito 91 as it still weighs less than the OS 70.

I was going to order from Tower Hobbies but they don't stock Saitos. Who sells the Saito 72 or 91 and has an online ordering system and international shipping (to Australia) on par with Tower?