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Miniature Aircraft Whiplash & Furion 6
› A few things I found with the Whiplash
11-15-2011 04:48 PM  6 years agoPost 21
MrMel

rrProfessor

Gotland

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How about cutting out a bigger hole where the tail servo is mounted, then using a small CF servo-frame that I put in place at a different angle/position, is that possible do you think?

Gone fishing..or hunting..or something
My site: http://heli.dacsa.net - VBar videos and more

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11-15-2011 04:50 PM  6 years agoPost 22
hams

rrApprentice

Ohio

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That would work too. I just wish that we wouldn't have to tear into the frames with a dremel to achieve the proper balance.

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11-15-2011 04:58 PM  6 years agoPost 23
MrMel

rrProfessor

Gotland

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That would work too. I just wish that we wouldn't have to tear into the frames with a dremel to achieve the proper balance.
Fully understand that and MA needs to fix it, but if there is an easy way, using off the self products, I will document how I do it.

Gone fishing..or hunting..or something
My site: http://heli.dacsa.net - VBar videos and more

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11-15-2011 06:40 PM  6 years agoPost 24
Wave

rrKey Veteran

Illinois

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Would you really sell such a nice machine if MA didn't respond to your statement? How would you like them to address the issue? Seriously?
You "address" the issue by spending 2 hours going over your prototype and making sure that it will work correctly with commonly used motors, lipos, servo's, etc.

The design looks like the goal was to have a set of mechanics that would work for electric, nitro, or gas, with no thought on how it would be optomized for any of them.

Disappointing...but it is what it is.

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11-15-2011 07:44 PM  6 years agoPost 25
rich m

rrVeteran

Stroudsburg, PA. USA

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The design looks like the goal was to have a set of mechanics that would work for electric, nitro, or gas, with no thought on how it would be optomized for any of them.
I dont think that has anything to do with the problem at hand. Those frames are built for each individual model. The fact that they share a head and tail has no real bearing on the problem. It is possible that they did not test balance many if the setups that people are running or trying to run.

Team Heli Wholesaler

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11-15-2011 08:03 PM  6 years agoPost 26
kcordell

rrElite Veteran

O Fallon, MO

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Maybe Bobby will chime in here when he's not out flying on how his models balance.
I flew mine this morning and with FlightPower 4350's I am even on balance. When I put in the Gens Ace 5300's I am ever so slight tail heavy. But I really don't notice anything different in flight between the two packs.
Now, before you ask:
CC ICE2120HV in 1st recommended position between the frames, LiFeSource 2100mAH battery up front on the tray.

Team Futaba, Team Synergy/Rail, Team Scorpion, Team Castle Creations, YS Engines, VelTye

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11-15-2011 08:08 PM  6 years agoPost 27
rstacy

rrElite Veteran

Rochester, NY

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You "address" the issue by spending 2 hours going over your prototype and making sure that it will work correctly with commonly used motors, lipos, servo's, etc.
I don't address the issue at all. I don't have one. Never did.
My comment was based on Hams's assessment that it was simple problem and rotating the servo was enough to solve the problem. I was curious as to why Hams would sell the machine if the problem was that simple. Sheesh. At least read what I wrote then attack me!
As we move on, I'm reading that it may or may not be the simple.
How would you like them to address the issue? Seriously?
So, you want MA to address the problem. I get that. What would you have them do?

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11-15-2011 08:12 PM  6 years agoPost 28
jhheli

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MD, USA

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Well It is good news to see he is going to do something about it, that says alot about him and the company, I wasn't expecting him to start right away but he has.

This was taken a few hrs ago if that,

Sponsored By: Kontronik, Prc, Pulse, Cano Mod

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11-15-2011 08:31 PM  6 years agoPost 29
F1 Rocket

rrKey Veteran

Melbourne, Florida USA

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Best way (IMO) to check CG is to hold the machine on its side by the rotor head. The kit I have took 2 oz of lead in the nose of the canopy to bring the CG neutral.

Danny

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11-15-2011 08:35 PM  6 years agoPost 30
hams

rrApprentice

Ohio

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Awesome.

Ray,

I should have chose better words when I said I would sell. I plan on giving bobby and ma awhile to come up with a solution. If one is not going to happen and we the user end up having to modify the heli away from its stock layout, then yes I would sell it and find one that works.

I have read and heard over my years in this hobby that MA is a cut above the rest. By the last post of bobby working on it, I have high hopes that that saying will hold true.

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11-15-2011 08:35 PM  6 years agoPost 31
jhheli

rrApprentice

MD, USA

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He did that also this was just to show that he is going to do something about it.

Sponsored By: Kontronik, Prc, Pulse, Cano Mod

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11-15-2011 08:41 PM  6 years agoPost 32
strokermtr

rrNovice

Baltimore, MD

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F1 Rocket... I agree that your method of checking CG is more sensitive. I did hold the heli that way and Bobby and I watched the tail fall. But I took the picture of him holding by the blade grips to show how far off the CG is. As you can see it is slightly tail heavy. The watching the tail drop method exaggerates the perception of tail heaviness as the tail gathers momentum as it falls.... Fixes freeing up more battery movement are being explored....

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11-15-2011 08:47 PM  6 years agoPost 33
Bobby Watts

rrVeteran

Orlando, FL

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The picture shown is a completely stock Whiplash with Ben's setup. Turnigy batteries and a jive up front... nothing really special. As you can see its pretty much dead on.

My model is the same. Balances perfectly.

And if the others cant seem to get theirs to balance properly, I already have a solution and will be testing this week. From what we are seeing here, this shouldn't be necessary, but hey- at least we are "fixing it"

O yeah... and...
The design looks like the goal was to have a set of mechanics that would work for electric, nitro, or gas, with no thought on how it would be optomized for any of them.

Disappointing...but it is what it is.
hahaha thanks for the compliment... I needed a good laugh today

Cheers!
Bobby

www.bobbywatts.com

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11-15-2011 08:50 PM  6 years agoPost 34
npap

rrApprentice

Toulouse - FRANCE

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If some are really embarassed with CG, I suppose that it's possible to move the tail servo at the switch position. So that the tail servo is horizontal, but cutting tail servo push rod is needed.
With tail servo in such a way, it's now possible to move the lipo as front as you want... that could be a solution but I haven't tested it yet myself, considering that with my TP65C 5000mah, I don't notice any particular issue in flight even if my whiplash is tail heavy a bit. I 've just changed my fbl system, I had swap my CGY for a Vbar and I will compare soon.

I fly with MKSHVBLS950 on cyclic and MKS servo horn, my settings are quite good in the Vbar software without any ball link change.. I have set on bench +13°(105 on Vbar sofware collective menu), the 8° asking on Vbar software are obtained for me at 95%,quite good I think.

Agile 7.2 European Factory team - Scorpion - MKS

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11-15-2011 09:03 PM  6 years agoPost 35
F1 Rocket

rrKey Veteran

Melbourne, Florida USA

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Hey Bobby-
It’s great to see you are taking a look at this. As I’ve said before the design has a lot of cool features. The CG issue is just an annoying one. Slightly off may not show up when being flown hard by an expert but an old fart like me who comes from an F3C background will feel it. Once this is taken care of I don’t see anything anyone could legitimately complain about. The Whiplash is a cool machine.

Danny

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11-15-2011 09:35 PM  6 years agoPost 36
Bobby Watts

rrVeteran

Orlando, FL

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Hi Danny

No worries There are actually a few different ways to go about this, some easier than others.

We will look into the easiest and cheapest way for guys to get theirs spot on, if they cant move their components around enough to achieve a perfect CG.

www.bobbywatts.com

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11-15-2011 09:40 PM  6 years agoPost 37
hams

rrApprentice

Ohio

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Bobby,

I would like to say thank you for looking into this. It is very reassuring to know that you are listening

Heath

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11-15-2011 11:01 PM  6 years agoPost 38
kcordell

rrElite Veteran

O Fallon, MO

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Another way to hold this model for the CG is to put a string thru the main rotorhead block (I bet Bobby cut that open for just that reason).
Mine balances just as Bobby's does.

Team Futaba, Team Synergy/Rail, Team Scorpion, Team Castle Creations, YS Engines, VelTye

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11-15-2011 11:45 PM  6 years agoPost 39
prototype3a

rrApprentice

Christiansburg,VA

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Are the ESC input power leads ~14" long here?

~Drew

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11-16-2011 12:01 AM  6 years agoPost 40
rchelichop

rrVeteran

seeya

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Bobby looks pissed, lol.

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Miniature Aircraft Whiplash & Furion 6
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