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The new Electric VioFan or EVF from BVM - 10/19/2006 6:12:48 AM   
Rather B Flying



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I was at my local flying club this past weekend here in Orlando and witnessed Bob Violett himself flying a couple jets with his new Electric Viofan system. All I gotta say is WOW! His F-86 sabre seemed to fly faster than I have seen it fly with a ducted fan piston engine. The verticals were almost endless and best of all the new electric system even sounds like a turbine whining. The motors whine and the sound of the airflow over the airfoil surfaces made for an incredible jet sound. Gone are the days of the arrogant and unrealistic "noise" of glow engines in our jets! I know this may sound like a BVM advertisement but the new Electric VioFan is definately on my wish list for Christmas.

-Michael Garofano

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"When once you have tasted flight, you will forever walk the earth with your eyes turned skyward, for there you have been, and there you will always want to be."
Leonardo Davinci
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RE: The new Electric VioFan or EVF from BVM - 10/19/2006 8:05:21 PM   
JIMMYTHEEAGLE


 

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I've been waiting for the bvm set-up to come out but I think the price for the fan, motor and escapement is a little high? Am I out of line or is that a reasonable price to pay? I have a maverick pro that I completed last spring except for paint because I wanted to see the performance and price for the electric conversion before I finished it. I guess I was looking for a complete set-up with batteries for the $1000-1200 price. $1800 though for a complete set up isn't much less than a nice turbine with proven reliability. Jim

(in reply to Rather B Flying)
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RE: The new Electric VioFan or EVF from BVM - 10/20/2006 3:41:25 AM   
CTulanko



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From: Cincinnati, OH, USA
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Michael,

While I appreciate your enthusiasm, I am going to have to go with Jimmy on this one.

There is no doubt that Bob Violett has helped the hobby tremendously in the past and has made one heck of a name for himself and a reputation to go along with it! He has had some amazing innovations with his ICDF and Turbine lines and knows well how to market them. That is where the new EVF comes into play. He realizes there are a ton of his old kits out there sitting in corners and hoping to be re-discovered someday; the EVF gives them the opportunity to do so…thus his marketing prowess is showing in full bloom.

He also admitted that he needed help to get where he wanted in the EDF arena, as it was not his cup of tea so to speak. Bob was smart enough to recruit help from good ESC and motor manufacturers and they worked with him to “tune” the new EVF system to run well. I say the words “new” loosely because he is actually rejuvenating an old Viojett fan design that has been around for a long time, with actual development costs paid in full long since past. While I am sure he had some minor development costs for the EVF, I doubt it was anything compared to when the fan was actually developed years ago or when one of his aircraft were prototyped. Like I said, he is a shrewd business man and can see a market with the best of them now.

What I do not agree on is his costing structure. While everyone can agree there are startup costs with a new product, the EVF is not new. A Viojett fan, motor mount changed for electric and currently marketed NEU motors and Castle Creations ESC’s do not make it a new product…a new package, but not a new item as all the products have been around. He is marketing it though as a completely assembled package, thus trying to justify the cost of balancing, assembly and testing...sorry but the simple steps do not justify a 1/3 price increase...period. He also is not selling just the fan as he knows anyone with a brain would not pay $650 for the EVF fan unit (the remaining cost when the motor and ESC price are removed) when there are stronger, lighter and better fans out there at half that cost! Heck, you can find used Viojett fans right here on R/C Universe for under $300 and that includes a motor, tuned pipe, etc...yea, he is way off base on this one.

Even the most powerful fan to date on the market, the Schuebler DS94 at a max of 19lbs thrust along with the same NEU motor that is in the EVF and the same Castle Creations ESC comes to around $875! The DS fan is pre balanced and if you cannot screw the motor to a mount, install the fan and connect five wires, then you will soon learn you don’t belong in EDF. I am sorry, but the Viojett EVF at $1200 is way overpriced and for a surcharge of $325+ for assembly and packaging...well, do the math!

However, it is BVM, so people will “think” it’s a deal, especially the target audience which I am sure are the current turbine fliers. They will go along and buy the unit because Bob says so and stay oblivious to the fact they are paying more for less. The smart EDF fliers though that have been around a while already know what this is all about and realize it is no bargain. The word will eventually get out as it always does, and it will not be to BVM’s benefit.

Like I said, I have nothing against Bob Violett in any way and very much respect what the man has done for our hobby. I also have no problem paying what he charges for his models and accessories because you get what you pay for with Bob…he is in my opinion the best for Jets and if you want top of the line, get a BVM. Moreover, I do not have a problem when you use old technology fans with currently available motors and ESC’s and call it innovative…he did a decent job matching a motor to the fan and the system does work well.

I do however have a problem when he tries to market it at a cost which I believe to be outrageous for a mid range product! Just because it’s BVM though, people will unknowingly probably buy into it, which is a shame, especially for a unit that he could more reasonably sell for $995, which would draw in a MUCH larger crowd and he'd still make a good profit. For now, I personally will stick with the real innovators of EDF like the TF-4000 and the Schuebler DS94 … at half the price, better quality, lighter all carbon fiber components and a max of 19lbs of thrust compared to the lesser 12lbs from the Violett EVF, I will take the other side of the coin any day of the week…but that is only because I know better. Maybe in time other fliers will “know better” too, BVM will drop their price to a more reasonable charge and our hobby will benefit from a vendor that cares enough to provide a good product to a larger audience at a more reasonable cost. Only time will tell.

Carl

< Message edited by CTulanko -- 10/20/2006 10:21:20 PM >

(in reply to JIMMYTHEEAGLE)
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RE: The new Electric VioFan or EVF from BVM - 10/20/2006 6:13:11 AM   
bruff



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But I think BVM will be selling more EVF units than DS 94 or TF-4000. Also parts and service will be alot easier. The DS-94 does not take much abuse. Very easy to damage the shroud. I have owned 4 of the DS-94 fan units. I will be replacing some of them with the EVF.. To used the DS-94 or TF-4000 in an existing BVM jet a number of mods need to be done. With the EVF no changes are required.
Bob

(in reply to CTulanko)
       Post #: 4

RE: The new Electric VioFan or EVF from BVM - 10/20/2006 1:45:57 PM   
CTulanko



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Bob,

I do agree that BVM will most likely sell more fans than the others, just becasue he is Bob Violett and it is convenient. Moreover, the EVF is a drop in unit and while the performance is not what I would coinsider stellar, it works well enough without mods for his line of jets. It was smart on his part to make his jets propriatary, but that can also come around and bite you in the end. I also have no problem paying a premium for his models as they are of top quality.

I do however very much disagree with his pricing structure on the EVF fan unit...it is way out of line for older technology and that is my point. I won't be trying one unless they get with the program and stop charging $400+ more for a lesser product. You may ask, do I have to buy one...no I do not. But do I have the right to say something about it ... you're darn right I do and I will be sure that my voice is heard.

Carl

(in reply to bruff)
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RE: The new Electric VioFan or EVF from BVM - 10/20/2006 11:40:24 PM   
bruff



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Well his older technology is still producing 14 lbs of thrust on a test stand. The Viper at Superman was clocked at 160+ MPH while Chris Trues EDF version was 145+ MPH. If I remember correctly. There is nothing wrong with old tech. Even Jet Hanagar is coming out with their E-Turbax fan. If it works use it.
In the future I think most EDF modelers( non-geek types ) with be flying EVF & E-turbax fans due to avaliablity and support. The reason is that the most of the 5" ducted fan kits on the market today can and will be flying with these units with very few mods. The newer fans(TF-4000 & DS-94) required changes to the airframe to allow them to work properly. I'm even working on doing an electric version of the Byron fan, now that is old tech!
Carl you are correct you do have a right to speak your mind. and I support that! One thing on BVM pricing. the EVF is about the same price the the BVM glow version was selling for a few years ago. His stuff was never inexpensive.

Bob

(in reply to CTulanko)
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RE: The new Electric VioFan or EVF from BVM - 10/21/2006 1:05:05 AM   
P. Richards



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Speed yes longevity not yet, that fan and motor combo is still eating speed controls for lunch the F-86 turned the speed control into a smoke system and had a very impressive smoke trail. Smoke and electronics don't mix well together, until a BVM cooling system works this project will not have the success that we are all looking for. This has always been a problem for high powered electric ducted fan units. I spoke with BV briefly at Florida Jets and he stated that they were still working on the cooling issues apparently they have not resolved it yet.

P. Richards aka Swat Team

(in reply to bruff)
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RE: The new Electric VioFan or EVF from BVM - 10/21/2006 1:37:34 AM   
CTulanko



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Bob,

I agree with you 100%, there is absolutely nothing wrong with using old technology if it works, and BVM has for the most part got it to work. Also as you stated, it appears those efforts may be the beginning of a rejeuvenation for many of the mid sized models still out there. You really cracked me up when when you mentioned the Byron...I still have one sitting in the corner myself!

Also, I agree 100% that BVM stuff is expensive, you get what you pay for and his products are the best. The old glow setup with the motor, fan, smooth stop, pipe, header was indeed around $1100-1200, depending on which motor you wanted. I wish I had an older add lying around to find the price on the individual items. However, in this case it is not his stuff as only one of the three main components are actually from BVM and due to that very fact, we can deduce what he actually wants to over charge for the fan. I am pretty darn sure the Viojett fan was not $650, which is about what he is charging now once you remove the retail cost of the motor and ESC.

Note I said retail cost and I would be willing to bet his overcharge is even more wholesale, probably well over $700 when all is said and done. Sure there is and should be a charge for balancing the fan, bolting in the motor, mounting the fan and hooking up the ESC, but that is one very excessive price for such a small amount of work and that is where I have a problem. If it was all his design, I would say great! No problem! $1200 is fine for something you machined and build from the bottom up. Just don't insult our intelligence by charging an outrageous premium for something when you are only resposible for designing 1/3 of the assembly!

At $900 retail in parts and another $50-100, we'll say $100 for assembly since it is BVM...I feel $999 is much more reasonable, looks better on paper since it is less than 4 digits and it would appeal to a larger audience. It's also better marketing for BVM as it could revive his old, already paid for product line. This would all be moot point if he built everything, but that is not the case, we already know what most of the components cost and that is the pricing downfall with the EVF. Those of us already in EDF know what things should cost as we have invested thousands in the hobby. Sure his target market may be different, but people will eventually learn what we know and it could very well hurt BVM in the end. I am sure yourself and I have paid in spades for equipment, but I am seeing a bit of vanity here by BVM and I have zero tolerance for it, am not shy and will call it like I see it. If I am wrong, I will be big enough say so, but for now, I say and have backed up my statements that the EVF is way out of line on its price...question is will BVM be big enough to admit it or will they continue to over charge a ridiculous premium out of greed. That is a problem.

Carl

Had to edit some stuff out as P Richards stepped in with the smoking gun while I was composing ... but I gotta say it. The difference is Chris is still flying his with the same batteries, where as BVM is back to the drawing board.

< Message edited by CTulanko -- 10/21/2006 2:42:35 AM >

(in reply to bruff)
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RE: The new Electric VioFan or EVF from BVM - 10/21/2006 3:28:57 AM   
bruff



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Carl I agree with you 100%. We will see, I have never seen BVM lower a price once it was announced. On the F-86 blowing controlers. Bob Violett was concerned because he was blowing them( 2 at Superman) up in the F-86 only the other three EVF were working fine. Even CC could not figure it out. I was told his third ESC is working fine in the F-86 now. If I get the Byron fan working, let's see if you can get yours flying electric.
Bob

(in reply to CTulanko)
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RE: The new Electric VioFan or EVF from BVM - 10/22/2006 11:00:29 PM   
3DownLow



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Saw the Viper and the F-86 fly on the same power unit recently. Wow! The F-86 had impressive vertical and nice scale looks, but the Viper was awesome! The vertical for an EDF this size was incredible. I think EDF's will soon be able to match turbines in performance after watching this one blast thru the air. It will only get better.

(in reply to bruff)
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RE: The new Electric VioFan or EVF from BVM - 10/25/2006 6:58:31 AM   
turnnburn


 

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Isnt there more to performance than just static thrust. Exhaust velocity is very important. Im curious what the exhaust velocity is of the 19lb static thrust unit you speak of. The old Byron fans had quite a bit more static thrust than a BVM fan unit but id take the BVM unit for speed and flight performance.

(in reply to CTulanko)
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RE: The new Electric VioFan or EVF from BVM - 10/25/2006 3:27:07 PM   
John Redman


 

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Keep in mind the unit is made in America and supports American wages as well. The retooling cost for the new shroud and centerbody mount is another thing that I don't believe you guys are looking at. The rotor is the same yes, but the new all carbon afterbody fairing is new and is not cheap to lay up, no to mention the other items in the system. And you will have full support. Of course I am sure you guys think that support comes cheap by the way of buildings, being at events, and staff to help the cutomer out. It all cost money, one way or another. If you believe it is too much, then so be it, live with something else. If you want a unit that will be fully supported at events, 365 days a year, then you might want to look at the new EVF. I can't even remember how many times I have seen BV hand parts out, complete rotors, tuned pipes, retract units, etc at events over the years to ensure a customer gets back in the air, and they never handed over a penny. That cost BV something as well and he believes it is necessary to ensure a prime product. I am sure there are a few guys out there that have been helped that way.

Your choice, buy what you want. If you like support, you might consider the options. Once again keep in mind it is American made, and not built overseas.


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John
BVM Rep

(in reply to turnnburn)
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RE: The new Electric VioFan or EVF from BVM - 10/26/2006 6:10:58 AM   
CTulanko



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John,

Where a product is made unfortunately doesn’t mean it is superior. In fact, the majority of good EDF airframes are actually made overseas, as are some of the best fans, motors and accessories. When it comes to purchasing our products these days, many are actually made overseas, but that does not necessarily make them inferior. Now I am all for doing my part to keep jobs in America, however that does not mean that I should expect to pay excessive prices for products when they are out of line with the market and possibly inferior to those in Europe.

I will say that in the world of EDF, we are fortunate to also have great American vendors and I would come to expect BVM to be no exception to this rule, but rather a great addition! As previously stated, I have the highest respect for what he has done for the hobby and his products are some of the best available. If you want the best, there is a cost and you get what you pay for, which is a great product. However, that does not mean that they can charge what can be seen as an excessive price for and item and we are not allowed to say something about it.

BVM is new at EDF and has freely admitted it. You stated there are tooling costs, but that is true with similar products overseas that are made in house without the benefit of cheap labor. Moreover, these overseas products are EDF items of which the entire product was engineered; as you stated, BVM only needed to spend some time in changing a motor mount and adding a faring, and while there is some investment incurred, that does not mean he necessarily had anywhere near the startup costs of the other vendors, especially when the most difficult and expensive item on the list to develop is a rotor that performs well. They already had that part in the bag thanks to the old Viojett; I say hats off to them for making it work!

I do not feel though the fan alone is worth the $650+ premium he is charging, even when giving them the benefit of the doubt with higher labor costs and tooling, which was most likely less than that of other vendors charging less than half that price! I see you are a Rep, so I understand your reason for defending BVM, but that does not make his price on the EVF any more justifiable. I would challenge you to give me a price from one of your old catalogs for the original Viojett fan unit and I would be willing to bet it’s no where near the price I quoted above, hence my point is made…they are overcharging.

Good service was mentioned and with BVM that cannot be denied. Bob has done much for his customers and I have all the respect in the world for him and his business. That does not mean though that you will not get the same kind of support from the other vendors. Also, if we are to expect BVM to going above