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HelicopterThunder TigerRAPTOR 90 › How you guys liking your VMAX's ?
09-12-2007 08:07 PM  10 years agoPost 1
AnnihilaT

rrKey Veteran

The Netherlands

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Just got mine rebuilt after a radio lockout earlier in the summer on the first flight. Was very ugly. Ready for another test flight and now i have pretty much a whole spare vmax airframe if something else goes wrong. If nothing goes wrong, i may have a spare vmax airframe for sale... pm if interested.





A day without sunshine is like, well, night.

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09-12-2007 11:05 PM  10 years agoPost 2
Laurens

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Oegstgeest, NL

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You've got a PM Josh

Edge rotorblades, Scorpion systems

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09-13-2007 04:02 AM  10 years agoPost 3
jschenck

rrProfessor

La Vista, NE.

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I picked up a Vmax last May - kind of heavy but been really enjoying it, except the speeding ticket (36mph in a 25! ?!?!!)

The Vmax rulez (open to trade for an R-Max)

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09-13-2007 04:08 AM  10 years agoPost 4
Wa11banger

rrElite Veteran

Huntsville, Al

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I love my Max... Great heli really nimble and crazy cyclics

She has unfortunately been getting some sideline time while I do some testing on my Trex600N but she wont be there long.. Never is

Rick

Proud member of the Quick UK, Duralite Flight Systems, V-Blade, & KBDD team

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09-13-2007 11:08 PM  10 years agoPost 5
AnnihilaT

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The Netherlands

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Now i had something else weird happen today. On the 3rd flight, i had set up the throttle curves and was just tuning in the headspeeds with the revmax settings for idle1 and 2 and as i flipped into idle2 (about 1930rpm) the tail let loose completely. I quickly hit throttle hold and had a bit of a hard landing which nicked the tail blades on the ground and you all know what happens when you nick the rap90's tail blades on the ground. Thats right broken gears in the tail case.

Anyway it turns out the reason the tail let loose was that the pushrod linkage for the tail came loose off the tail servo!! I have NEVER seen that happen. It was a new link as well... not an old worn one. This is definetely a first for me. luckily no damage other than the tail gears so ill swap those out and take it up again on saturday.

Anyone else ever have their tail linkage just pop off the tail servo? Im gonna mount it this time with a washer on top of the linkage so that its impossible for it to come off. NEVER had to do that before.





A day without sunshine is like, well, night.

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09-13-2007 11:21 PM  10 years agoPost 6
Laurens

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Oegstgeest, NL

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Maybe due to some unseen vibration? I once had my aileron screw vibrate loose, then the horn fell of while flying

Edge rotorblades, Scorpion systems

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09-13-2007 11:29 PM  10 years agoPost 7
AnnihilaT

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The Netherlands

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No i mean the ball link fell off the ball!





A day without sunshine is like, well, night.

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09-15-2007 03:32 PM  10 years agoPost 8
ollik

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Finland

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Hi,

I have a V-Max set installed in a standard Raptor 90 with
- QUK rotor head block
- V-Blade stabs (95 mm)
- Radix 710
- 3 x Futaba 9451 servos on 4,8 V
- YS 90

It is very accurate, good tracking on FFF, quite fast on cyclic, more punch on pitch.

I am happy with it, but I was looking for an "extreme 3D machine" and it is not as "aggressive" and "instant" as I expected. I still have original plastic components above wash plate (except the rotor head block). What would be the next upgrades/steps (mixers, flybar arms ...?) to make it more "aggressive" and less "rubber-like".

Don't get me wrong, it is good and I like it, but I would like to make it even better.

BR
Olli

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09-15-2007 04:39 PM  10 years agoPost 9
Laurens

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Oegstgeest, NL

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Gforce mixer arms maybe for -+15 degrees of pitch (and cyclic ofcourse).

Edge rotorblades, Scorpion systems

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09-16-2007 01:50 AM  10 years agoPost 10
ollik

rrNovice

Finland

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How does V-Max compare with thoroughbred 3D machines like Synergy, Stratus and Vibe (cyclic speed, pitch punch, accuracy, tracking, locked up feeling etc.). Some of you have for sure tried all/some of them.

BR
Olli

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09-16-2007 03:10 AM  10 years agoPost 11
Wa11banger

rrElite Veteran

Huntsville, Al

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It is a thoroughbred upgrade to an airframe some already own. Avant was inspired to upgrade the fury to an awesome 3d machine. The same has come for the Raptor big blocks. The Max is as locked in as any I have flown, I have flown about everything out there except for a JR and Robbe. The cyclics are comparable to any of top dogs that are in the same class. It has very crisp and responsive cyclics and tracks like its on rails. Stable at the hover and can explode into 3d manuevers. Like any of the top airframes it can be set wilder and milder. My pitch range with a QUK head on it is almost 16/-16 but I dont use more than 14/-14. The higher CG coupled with the fact it's eCCPM allows it to have very agile cyclic response. The V-max is a sweet machine, and an excellent choice for those that already have a Raptor big block that want to upgrade to one of the elite without breaking the bank to get there. Survivability is top notch as well.. Several have witnessed mine go in very hard twice now.. Not one frame part broken, not one V-Max specific part failed.. I did however still break the fan shroud.. Cheap part to break.

Rick

Proud member of the Quick UK, Duralite Flight Systems, V-Blade, & KBDD team

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09-16-2007 03:20 AM  10 years agoPost 12
Wa11banger

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Huntsville, Al

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ollik, sorry I missed your post earlier.. Your max just needs the head reworked a little. Upgrade to metal grips, Go to a 690mm main blade, and man put them 9451's on 6 volts... My Vmax has all the gitty up anyone can ask for and has been compared flown by quite a number of Pro's... I have a question though, what HS are you running? goverened or not?

My setup
OS 91SZH W SB18
14/-14 collective
8.5/-8.5 cyclic V Paddle 95's
HS norm=1650, id1=1800, id2=1920
V-blade 690's
9451's on 5.8 volts
611 Gyro
K&B neon Tail blades

Very responsive setup very light on the sticks as well. A true go where you point it airframe.

Proud member of the Quick UK, Duralite Flight Systems, V-Blade, & KBDD team

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09-16-2007 10:17 AM  10 years agoPost 13
AnnihilaT

rrKey Veteran

The Netherlands

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Check this link for the latest in my Vmax saga....

http://www.runryder.com/helicopter/...1/?p=2953358#RR

Unbelievable!





A day without sunshine is like, well, night.

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09-16-2007 03:56 PM  10 years agoPost 14
ollik

rrNovice

Finland

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Hi

I do not currently have a governor, but I will install a Revlock 10.

HS is propably a bit on the lower side at the moment (I did not measure, but would guess it is around 1800 rpm)=> will increase.

Planning to go to 6V. How much expo you have on cyclic (ail, elev).

Do you feel that the plastic grips are flexing (was that the reason to go for metal grips)

I am planning to change the mixing arms (and change the mixing ratio) in order to get more direct servo input to main blades.

It takes more time, but propably I would like to do the changes one by one in order to understand how big effect each change has.

According to your experience, what would be your order of changes (starting with the most effective one)
1) head speed from 1800 to about 1900 + governor
2) new mixing arms (GForce, Kasama ...)
3) from 4,8 V to 6 V
4) main blades from 710 to 690
5) metal main blade grips
6) ...

Thank you all for your input. It was really nice to hear that the machine has the potential, I just have to dig it out.

BR
Olli

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09-16-2007 04:37 PM  10 years agoPost 15
Wa11banger

rrElite Veteran

Huntsville, Al

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Quickest change of your experience would be in this order..

1) Up the HS to 1900 or just above. A governor is not neccessary at all you can program in your throttle curves, but plan on spending a day or two setting your throttle curves to suite your flying style so that it can stay close to maintaining the HS during all manuevers and loads.

2) Go to 6 volts if you thought your 9451's were fast before they most certainly will be now.

3) Main blades, I do not care for the flight characterstics of 710's they are not as quick and do not have the same pop. Also if you dont want to change to V-blade 690s get the Radix SB's they're almost as good

4) Metal grips, They are flexing a bit, especially a pair that has some time on them. This will give you some extra pop but mostly give you that "Locked In" feeling and your tracking will be dead on even when demaning the most from the airframe.

5) Mixing arms, The change in the upper frame that the Vmax does to the Raptor negates needing the mixing arms changed at all.. The stock raptor can gain from this move but you will notice little to any gain doing this on a Vmax airframe. It doesn't have the same limitations that the stock setup has. None of mine are changed from stock ratios.

The lower HS is probably your biggest culprit to feeling rubbery. Another is ensure you are tuned well. YS are consistent and provide good power. I run alot of them just not one in my VMax. You can push your YS a little further than most think without coming close to damaging it. They are the workhorses of 91 powerplants. That being said I did grenade one this past summer

Rick

Proud member of the Quick UK, Duralite Flight Systems, V-Blade, & KBDD team

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09-16-2007 09:21 PM  10 years agoPost 16
ollik

rrNovice

Finland

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Thank you Rick,

Very very useful comments. I am going to follow them.

Best regards
Olli

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09-17-2007 08:58 AM  10 years agoPost 17
Alexander01

rrVeteran

Sweden

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A V-max with a proper setup is a great 3D helicopter, very agile at high rpm and stable at low rpm. It does fly a lot crispier than an ordinary R90.

QuickUK Team Pilot SAB Team Pilot

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09-17-2007 03:25 PM  10 years agoPost 18
ollik

rrNovice

Finland

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Alexander01,

Just in order to learn more, what is your setup and what additional parts you have in your heli on top of the "standard V-Max" package.

mvh
Olli

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09-18-2007 03:27 AM  10 years agoPost 19
ccpm raptor

rrApprentice

Delaware

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I love my v-max upgrade

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09-18-2007 09:15 AM  10 years agoPost 20
Alexander01

rrVeteran

Sweden

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Olli:

I have QuickUK one way clutch, QuickUK full metal head, QuickUK tail assembly, QuickUK heavy duty clutch on top of the V-max kit. The rest is R90 parts. eCCPM servos are 9451:s, ATG governor, 611 gyro, Fromeco Arizona reg @ 6V, OS91SZH with Cline + SB18. No header tank, Fuel Magnet instead. Infinavation dampers with removed pin in the hub. V-blades 690 mm. G-force mixing arms, giving +/- 13 collective with 8-9 cyclic pitch.

QuickUK Team Pilot SAB Team Pilot

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HelicopterThunder TigerRAPTOR 90 › How you guys liking your VMAX's ?
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