New TREX500 Tri-Blade Tail

[Scott_RC-TEK]

Coming soon for the TREX500

I² (Innovative Imagineering) PRO TB-Tail
100% American engineered, machined, and individually hand finished with the finest raw materials from around the world.

Bolt on 30+% additional tail authority with this innovative ultra high-end tail assembly that looks just as good as it performs. Specifications and product highlights to follow.

Regards,
Scott

http://i2rc.com/images/TB_triblade_rct.jpg

http://i2rc.com/images/TB_triblade_b_rct.jpg

http://i2rc.com/images/TB_triblade_c_rct.jpg

[Gadget01]

I like it! I'm not a fan of cross-head screws though- I think they have no place on model aircraft.

What is the outside boom diameter and what is the tailshaft diameter?

[Bryan Davison]

Dang it man....now you got me back into the heli bug again.

AGHGGGGGGGGGG...
Im addicted...I need help.

[USNAviationjay]

600 size next!! please ! =D
freaking awesome specially for scale projects.

[Scott_RC-TEK]

I like it! I'm not a fan of cross-head screws though- I think they have no place on model aircraft.

What is the outside boom diameter and what is the tailshaft diameter?Various fastener types were considered and the Phillips head countersunk screws work best for this specific application. They also look better than cap head screws on the control arms.

This first offering is specifically design for the TREX500 and supports a 16mm OD boom.

The tail shaft design is a proprietary and novel hollow shaft control mechanism that has proven to be very robust in testing. The 2.5mm self lubricating inner tail control rod is channeled through a larger 5mm OD output shaft assembly that the tri-hub is attached to. This allows for balanced, ultra low resistance pitch control that is very smooth and slop free.

The entire tail assembly is also only 49g :cool:

This is a quick HD video of the proto-type displayed back in May: http://www.rc-tek.com/i2/i2_tri_a.WMV (21MB)

Regards,
Scott

[Scott_RC-TEK]

I should also mention this tail was designed and produced by Bob O'Dowd ("BobOD" here on RCG) via his new I² venture. Bob and I have been “collaborating” for months now and it is nice to see some of our combined ideas become a reality. More so, we are proud to offer a true American made product that supports our domestic economy and offers no compromises on quality or performance.

Now, this "coolness" does come at a cost and the I² products will not be for all pilots who are looking for a low price aftermarket solution. Since production runs are typically less than a dozen pieces and each part is hand finished/assembled like a finely tuned watch, the overhead and production investment is very high. However, it is our belief that there is a market for ultra high-end tails, rotor heads, and other tuning products that will appeal to those one in a hundred pilots who can appreciate functional pieces are heli art like the PRO TB-Tail.

I personally like how each individual tail shows the craftsmanship that when into it. The precision is second to none yet you can still see the small machining grooves and final tooling points that truly make each tail unique.

Regards,
Scott

[OICU812]

I like it! I'm not a fan of cross-head screws though- I think they have no place on model aircraft.



I agree with this 100%, those phillips should be considered to be replaced with a hex head bolt if possible, otherwise very nice piece indeed.

[FrankW]

Ewww... If I could go back in time and kill one person, it would be whoever came up with those crosshead screws. They suck.

The design itself is a very novel idea and I would be very interested in trying it out, if it came in a TT tail version. I like the grips and wonder if they could fit on the stock hub.

Any photos of it mounted and/or videos of how well it flies?

-Frank

[Scott_RC-TEK]

The only other option is these black countersunk hex screws. Again, cap head will not work properly and they do not look good on the control arms.

Here is the first proto-type flight video back in May on a TREX 500 loaned to us on the spot by a brave friend of the company: http://www.rc-tek.com/videos/i2/i2tail_hd1.WMV (65MB)

The tail was simply put on the heli and no GY401 gyro adjustments were made so we could see how it would do (in the significant wind). We were very happy with the added authority, which can really be seen during the last few moments of the video. We will see about making a better video this weekend at the San Diego Buzzin' the Border Fun Fly now that the final design is finished.

Regards,
Scott

[Scott_RC-TEK]

Here is a unit mounted on a 15mm CF boom (using a custom stepdown sleeve) with some CF tail blades.

Regards,
Scott

http://www.i2rc.com/images/cftb.jpg

[OICU812]

Nice, the black counter sunk hex heads would be a good idea for sure Scott.

[OICU812]

As a question Scott, running 3 blades, I am assuming you guys may consider selling (3) balanced blade sets then? Of course trying to mathc up various blades could get the user into vibration issues, please elaborate on this plan.

[BobOD]

Too funny. :)
We went back and forth on the black socket vs the cross hd. I admit, the cross head ones look much nicer though. Too bad they don't make SS 2mm flat heads...for good reason actually.
If it makes you feel better, they do take the larger screwdriver and I've never had one come loose...AND I don't use loc-tite ever...I hate the stuff. Quality screws, quality threads, properly tightened... I never lost one.
Anyway, it was designed to take standard M2 x 6mm Flat Socket Screws as well.

[FrankW]

We all seem to prefer the hex flat head bolts.

-Frank

[Scott_RC-TEK]

As a question Scott, running 3 blades, I am assuming you guys may consider selling (3) balanced blade sets then? Of course trying to mathc up various blades could get the user into vibration issues, please elaborate on this plan.I see your point and we are looking into it with a few manufacturers. Fortunately, we have been pretty lucky with the K&B's and Bob's CF's were within 1/10th of a gram of one another.

Regards,
Scott

[BobOD]

I just checked my numbers. The K&B's were within 1/100th gram.
Just checked my numbers.
Blade 1 – 2.9511g
Blade 2 – 2.9412g
Blade 3 – 2.9448g
It's a good point though...something to watch.

[Greybird]

Boy, That is a beautiful piece of machining! I want one and I do not have a Trex 500.

[BobOD]

Here is the first proto-type flight video back in May on a TREX 500 loaned to us on the spot by a brave friend of the company: http://www.rc-tek.com/videos/i2/i2tail_hd1.WMV (65MB)


Regards,
Scott

A brave friend indeed!
I have to add, that was the first flight ever of the Tri-blade design. It was such a rush to get it to the show, after burning the midnight oil, that I never got to test it myself. I was quite "on the edge of my seat". :eek:

[Gadget01]

Here is a unit mounted on a 15mm CF boom (using a custom stepdown sleeve) with some CF tail blades.

Regards,
Scott

So will it fit an 18mm boom?

[Scott_RC-TEK]

So will it fit an 18mm boom?The current version does not fit an 18mm boom. It is made for a TREX 500 16mm boom.

Regards,
Scott

[FrankW]

Will you be making it available for the TT tail?

-Frank

[Scott_RC-TEK]

Will you be making it available for the TT tail?

-FrankBob and I will discuss it. If there is a need, I am sure something can be arranged. ;)

Regards,
Scott

[Butuz]

Wow that looks awesome Scott!

As for cap screws verses cross head screws - yes cap head are better for those who like to over-tighten their parts - but cross head screws are also fine to use, as long as they are made decent and not out of cheese.

Butuz

[tIANcI]

Scott ... you deliver to Asia? :) :) :) I want to order one!!!

[Scott_RC-TEK]

Scott ... you deliver to Asia? :) :) :) I want to order one!!!Yes, we will ship world wide when the assembly is released.

Regards,
Scott

[kgfly]

Nice work Bob, glad to see it come out into the light at last. Compliments again to Scott for taking risks to bring something new to market and for the beautiful photography as always.

It seems great minds think alike (or perhaps there is just one really good way to control a multi-blade tail): http://www.helifreak.com/showthread.php?t=92899

[FrankW]

When you get a setup for the TT tail I'll be very interested.

Any chance you'll make those tail blade grips for the stock hubs?

-Frank

[Scott_RC-TEK]

When you get a setup for the TT tail I'll be very interested.

Any chance you'll make those tail blade grips for the stock hubs?

-Frank
We need to get a TT tail kit I guess and look into it. :) A standard grip upgrade for the stock tail shouldn't be too hard. What do you think, Bob? ;)

Scott-

[BobOD]

Just an FYI for you all. Back in the early development, I analyzed, built prototypes, and tested both the belt and the TT as I did not want to make the wrong choice. The belt won and for some very sound reasons. Then the Trex comes out, along with a bunch of really lousy, static sensitive electronic designs, and now everybody wants to go back to the old TT. AAAARRRRGH!
Sorry...I had to vent.
No problem...all I need is a TT kit so I can see what I need to bolt up to. Should not be a big deal but it'll take a while as I think quite a lot of components will have to change.

[BobOD]

Any chance you'll make those tail blade grips for the stock hubs?

-Frank

You like those 2 gram "weighted" grips eh?

Unfortunately, no. Why Align has gone to a 5mm spindle here is beyond me. Compare that to a main grip on a little 450. :D I don't mean to knock them, they're a great and admirable company and make nice products but this is not something that is in line with my design philosophy. I could produce a 2-blade hub though. We'll see.

[dieselracer]

That tail is very Nice. A TT version would be nice. As i dont like belt my self. Its amazing how that tail has no slop whats so ever!

[BobOD]

That tail is very Nice. A TT version would be nice. As i dont like belt my self. Its amazing how that tail has no slop whats so ever!

Sweet isn't it? I'm actually working on getting some ABEC7 bearings for the link ball arm on the input side of the control rod to improve upon "no slop whats so ever". I want to get it so a dial indicator won't show backlash. :cool:

Scott, get me miter gears! I have just about every size available from SDP but nothing seems to be the right fit. Actually, it's going to be a while before I can get to the TT as I'm just finishing up the design for a flybarless main. I'll be starting to make the prototype within the week. :cool: :)

Bob

[dieselracer]

Sweet isn't it? I'm actually working on getting some ABEC7 bearings for the link ball arm on the input side of the control rod to improve upon "no slop whats so ever". I want to get it so a dial indicator won't show backlash. :cool:

Scott, get me miter gears! I have just about every size available from SDP but nothing seems to be the right fit. Actually, it's going to be a while before I can get to the TT as I'm just finishing up the design for a flybarless main. I'll be starting to make the prototype within the week. :cool: :)

Bob

cool. I didnt think it could get any better. :cool:

[cnc custom]

how heavy is this setup....the 500 already flys tail heavy

[BobOD]

how heavy is this setup....the 500 already flys tail heavy

49 grams. I beleive the stock tail is about 71 grams.

[cnc custom]

wow...really.....that is impressive....... :D

[FrankW]

How robust is this new tail and how affordable will replacement parts be? I'm really looking forward to a TT-tail version... maybe a version with both a pulley shaft and a gear shaft?

-Frank

[skyhawk]

Ewww... If I could go back in time and kill one person, it would be whoever came up with those crosshead screws. They suck.

Ha............I would take out whoever came up with the slotted screw. They are 100 times worse.

[BobOD]

How robust is this new tail and how affordable will replacement parts be? I'm really looking forward to a TT-tail version... maybe a version with both a pulley shaft and a gear shaft?

-Frank

It's built to fly and that's not been easy. It's quite a challenge to machine a 2 gram part out of a 40 gram block of aluminum while holding very tight tolerances...for instance. I've made much heavier parts along the way and it takes half the time and a whole lot less thought in the manufacturing process.
It's not meant to be cheap.

I wish it were going to be that easy to just have a pulley shaft and a gear shaft but the gearing will likely take up so much room that too much has to change. Early on, for example, I considered making it retrofittable to a TT but decided not to compromise the design of the belt drive unit. After much testing and analysis showed that the belt was a clear winner from a performance point of view (static issue unknown at the time), it was decided to focus only on making it the best it could be. I have no regrets. :)

Bob

[FrankW]

Ha............I would take out whoever came up with the slotted screw. They are 100 times worse.

I disagree, often times when you damage a crosshead screw you can use a dremel to cut a single slot and remove them. I remember reading an article (in RCheli?) about screws and crossheads are designed to "cam-out" to help prevent damaging the part's threads.

-Frank

[BobOD]

Nice work Bob, glad to see it come out into the light at last. Compliments again to Scott for taking risks to bring something new to market and for the beautiful photography as always.

It seems great minds think alike (or perhaps there is just one really good way to control a multi-blade tail): http://www.helifreak.com/showthread.php?t=92899

Thanks for the good words Kenneth. Yes, Scott is good with the camera. :)

Interesting thread...I like that kind of ingenuity. I hope not to bore you all but I'll tell you a little history of the development. It'll also be a good opportunity for me to point out the strong points of the design. ;)

Years ago when people started putting VP props on their planes, I wanted to do the same. But, there was nothing powerful enough for the plane I had at the time. So, I adapted a heli tail to the plane. Eventually, I replaced it with a commercial unit with the control through the motor shaft. Well, it had a lot less play (pitch backlash) and the reason was clear as a bell. The external slider that is typical on a heli is very short so it has a tendancy to cock back and forth. Lengthening this slider bushing helps but this just pushes the rotor hub further out...cantilevered from the bearings supporting it. A partial solution is to "fork" the slider on both sides. This seems to help on the ground but the slider is still free to jiggle around in flight changing the relative pitch of each blade to each other...a fine point often overlooked in discussions. It causes a lot of vibration and stability problems. The only solution is to have the fit just on the border of binding and freely sliding. This is difficult and doesn't last long.

With the "slider" inside the shaft, it is supported for the entire length of the shaft, thus, cocking is reduced to nothing. Even with the bushings severly worn oversize (I drilled some out to see the effect), there is no appreciable effect in pitch. Then, as a nice bonus, the rotor hub is just outboard of the main bearing...not cantilevered way out there.
Without such precise control, such an agressive 3-bladed tail becomes a bit of a control nightmare. Instead, every heli this has been installed on has performed without any gyro tweeking or any tweeking for that matter. It really opens up the operating window of the control system. I'm still waiting for feedback from Scotts pilots but I suspect all will be the same story.

On top of all that, 49 grams for a 3 bladed tail unit is a feat that has been more difficult then most would imagine. If there are any machinists out there, I'm sure they would understand the challenges. It's been difficult and I've wanted to throw in the towel (or compromise :eek: ) but I just kept going...thanks to Scott for a touch of encouragement along the way.


Now, it's back to work on the main rotor for me. :cool:

Bob

[Dynarace]

Any rough idea on pricing yet? The holidays are just around the corner and I think I know what I'm asking for... ;)

[tIANcI]

Dyna ... ask not how much but think of how much satisfaction you will be getting! I am so so scr3wed ... hahahaahaa ... I need to scratch an itch badly ...

[BobOD]

Dyna ... ask not how much but think of how much satisfaction you will be getting! I am so so scr3wed ... hahahaahaa ... I need to scratch an itch badly ...

Now there's a guy with the right attitude. :rolleyes: ;)

[BobOD]

Ewww... If I could go back in time and kill one person, it would be whoever came up with those crosshead screws. They suck.

-Frank

Yep, you'd have to go back in time allright. He's dead. http://en.wikipedia.org/wiki/Henry_F._Phillips

And, for a little more fun, someone HAS to get a video with some of this for background music. :D
http://www.phillips-head.com/

[Happy|Harry]

you know in the joiners side of construction pozi and philips head is king, they don't strip or cam unless abused, driven with the wrong type/size bit or if they are cheap crap ;)

phil

[nybbler]

you know in the joiners side of construction pozi and philips head is king, they don't strip or cam unless abused

Pozi and Phillips aren't the same. Phillips is _intended_ to cam out to prevent overtorquing, Pozi is intended to allow greater torques.

[Scott_RC-TEK]

Well, we took a little video of the I² tri-blade flying this evening. It did very well. :cool:

Enjoy,
Scott

http://www.rc-tek.com/videos/i2/i2tbt_091808.wmv (65MB)

[kgfly]

It would be great if you could publish your videos to youtube or vimeo for those of us for whom downloading massive files is a problem. ;)

[Happy|Harry]

nice video but i see nothing that the standard rex500 can't do, including the bounce on the piro stops

phil

[BobOD]

nice video but i see nothing that the standard rex500 can't do, including the bounce on the piro stops

phil

It has 30% more thrust and that's documented. It indeed provides more acceleration, deceleration and holding power. This is without question.
The linkage design is also able to handle this power with much greater precision.
Also, you don't have to use such large blades. I'm running much smaller CF blades on mine with equally good results. This might not be such a big point except that it shows how wide open the window of operation is. Point being that ample power plus unmatched precision = works out of the box without fuss....which was the design goal from the beginning.

Bob

[BobOD]

It would be great if you could publish your videos to youtube or vimeo for those of us for whom downloading massive files is a problem. ;)

You make a good point Kenneth but I hate fuzzy youtube videos. Scott is after quality and quality is worth the effort.

Speaking of that, Scott, you should have zoomed in a little closer on that gorgeous thing! :rolleyes: ;) :D

[FrankW]

It has 30% more thrust and that's documented.

Do you have the test results to show us?

I'm really interested in the specifics of the T-rex's setup in that video. Pinion, headspeed, collective range, etc.

-Frank

[Scott_RC-TEK]

It has 30% more thrust and that's documented. It indeed provides more acceleration, deceleration and holding power. This is without question.
The linkage design is also able to handle this power with much greater precision.
Also, you don't have to use such large blades. I'm running much smaller CF blades on mine with equally good results. This might not be such a big point except that it shows how wide open the window of operation is. Point being that ample power plus unmatched precision = works out of the box without fuss....which was the design goal from the beginning.

Bob
BobOD
Happy|Harry apparently wants to disrupt anything we do in any thread so take what he says with a grain of salt. Any slight bouncing on the piro stops was due to the gyro needing to be adjusted down further and not the tail itself.

FrankW
The results beyond the math on paper is the fact that you can bolt this tail on, fly it, and notice you do not need as much gyro gain and the tail servo strain is significantly reduced. However, the tail authority and precision is greatly increased. The heli setup info is at the beginning of the video. I believe the pinion used was a 13T on the Scorpion 3026-1400 and Jose/Manuel always run +/-14 on their heli's, but they can correct me if I am wrong.

Scott-

[BobOD]

I have the data I've collected on the bench using a strain gage and will gladly share it with you when I get back to the office. I do not have the details of Jose's particular setup. Mine was based upon 11-12000 rpm (tail speed of course) and the results were 30+% increased thrust...which should not be much of a surprise.
I also did some in flight tests on a "special" test rig that has the ability to monitor power draw of the tail independant of the main rotor. Obviously, it showed greater peak power draw. I was hoping to see some reduction due to greater efficiency at hover, for instance, but the results there were nominal.
Bob

[FrankW]

I have the data I've collected on the bench using a strain gage and will gladly share it with you when I get back to the office. I do not have the details of Jose's particular setup. Mine was based upon 11-12000 rpm (tail speed of course) and the results were 30+% increased thrust...which should not be much of a surprise.
I also did some in flight tests on a "special" test rig that has the ability to monitor power draw of the tail independant of the main rotor. Obviously, it showed greater peak power draw. I was hoping to see some reduction due to greater efficiency at hover, for instance, but the results there were nominal.
Bob


I would love to see that data and would definitly help my purchasing decision. I'm still crossing my fingers for a TT version.

-Frank

[BobOD]

BobOD
Happy|Harry has apparently turned to the dark side and seems to want to disrupt anything we do in any thread so take what he says with a grain of salt. Any slight bouncing on the piro stops was due to the gyro needing to be adjusted down further and not the tail itself.

Scott-

:D
Yes, I sensed the jealousy. :rolleyes:
I often do wonder what makes some people think they have the right to make frivolous, negative comments in a thread that is here to show people what we are working on for them. It's very rude if you think about it.
But, that's OK. I'm confident and proud of what I have to offer and before such things get to me, I'll simply answer as best as I can and then get back to work doing what I love to do.

BTW, I figure Jose was just having a bit of fun jamming the stick around as fast as he could and the bounce was more from the jolt it sends throughout the heli from the excessive thrust. I've found myself doing the same as it is quite impressive. Otherwise, he seemed to do a very nice job controlling it. ;)

Bob

[Scott_RC-TEK]

...or is this yet another rctek "friend" posting something snide trying to get me to react so as to report my post? Trolling is not welcomed here.

Scott-

[BobOD]

Scott,
Nice job at flushing out. :D
I'm a grin ear to ear.

Happy,
I have to apologize that I do hope to earn something for my efforts.
We are here to show what we have to offer to those who WILL appreciate it. We are not here for your narrow opinion which clearly seems an effort (for what motif I cannot imagine???) to prevent the above. (I would think this should be obvious).
We would not say the Trex has a soft tail. This would be subjective opinion. I, based on direct experience, which you do not have by your admission, would say the Trex has a more aggressive tail than the HDX and the Tri-Tail is more aggressive than the Trex. If someone feels they do not need a more aggressive tail, they should not buy for this reason alone. Simple as that. Do you see how much more ethical and polite this is? Not nearly so one sided or slanderous. If you see a woman who does not meet your idea of beauty and you go up and call her ugly, don't you expect her to get mad?

Sorry everyone, I'm not really here to teach manners but I just got carried away with this one. :D

And, for the record, I do consider myself a friend to Scott.

Bob

[Montag DP]

Hey, isn't everybody in this thread just great? :)

[dieselracer]

BobOD
Happy|Harry has apparently turned to the dark side and seems to want to disrupt anything we do in any thread so take what he says with a grain of salt. Any slight bouncing on the piro stops was due to the gyro needing to be adjusted down further and not the tail itself.

FrankW
The results beyond the math on paper is the fact that you can bolt this tail on, fly it, and notice you do not need as much gyro gain and the tail servo strain is significantly reduced. However, the tail authority and precision is greatly increased. The heli setup info is at the beginning of the video. I believe the pinion used was a 13T on the Scorpion 3026-1400 and Jose/Manuel always run +/-14 on their heli's, but they can correct me if I am wrong.

Scott-

Scorpion 1400 w/ 14 tooth. +/-14.

[Scott_RC-TEK]

Scorpion 1400 w/ 14 tooth. +/-14.Thanks for the clarification, Jose.

Scott-

[BobOD]

the pinion used was a 13T

Scott-

Ah ha, it was a 14T. You LIAR! :D

OK OK, I'm getting a little carried away here. Back to the subject. :)

Although I am very happy with how well we met the performance goals regarding increased thrust as well as increased precision in the managing of that thrust (note one without the other would be a failure), I am most pleased with the outcome of the weight. Decreasing the weight by 30 grams on such a small assembly, while adding a blade, was the bigger of all challenges by quite a large margin. It takes a lot of work both in engineering design as well as in the manufacturing processes. Not bad for a hobby machinist eh? ;)

[BobOD]

Do you have the test results to show us?

-Frank

Frank,
Here's the data on the thrust bench testing I did. Both were at 12250 RPM and equal pitch (Trex metal unit at full). Both with KB 70mm blades.
Test # Trex tail Tri-Tail
1 Control 133%
2 Control 128%
3 Control 119%
4 Control 137%
5 Control 132%
6 Control 137%
7 Control 135%
8 Control 130%
9 Control 127%
10 Control 135%

Average 131%
Bob

[FrankW]

Thanks for the info! I'm looking forward to seeing a TT version. I currently have 13 flights on my TT tail and I don't plan on going back unless I need to to get back in the air.

-Frank

[BobOD]

You're welcome.
I've decided I will do a TT version. I have to listen to the customers don't I. ;) Unfortunately, it'll be a little while. I need to concentrate on the main rotor first as I'm pretty far into it and I can't take on too many developments before I start actually getting an income. Going bankrupt before actually making a sale would be a pretty poor buisness plan. :o I hope you can all understand that.
Bob

[CatchmyCorsair]

You're welcome.
I've decided I will do a TT version. I have to listen to the customers don't I. ;) Unfortunately, it'll be a little while. I need to concentrate on the main rotor first as I'm pretty far into it and I can't take on too many developments before I start actually getting an income. Going bankrupt before actually making a sale would be a pretty poor buisness plan. :o I hope you can all understand that.
Bob

What heli are you developing?

Great looking tail, btw.

[FrankW]

You're welcome.
I've decided I will do a TT version. I have to listen to the customers don't I. ;) Unfortunately, it'll be a little while. I need to concentrate on the main rotor first as I'm pretty far into it and I can't take on too many developments before I start actually getting an income. Going bankrupt before actually making a sale would be a pretty poor buisness plan. :o I hope you can all understand that.
Bob

lol. Bankrupt is bad, I can wait.

-Frank

[BobOD]

Right now I'm developing upgrade kits for the Trex500 and possibly others of this size. So far I've run a small production run of the Tri-Tail, a prototype of a flybar'd main rotor and I'm about to start making a flybarless main rotor prototype. All to be drop in for the Trex500.

And, thanks for the compliment. I'm usually better known for function than form but it did come out kinda nice looling didn't it? :)

[BobOD]

lol. Bankrupt is bad, I can wait.

-Frank

You are too kind.

[dieselracer]

I was flying my personal 500 today. AND I was doing the Maneuver where i piro one way, stop start the Piro the other way, Stop and piro back the other way. And my tail was Lagging. The tail wouldnt change direction as good as the one with the Tri blade. I guess i kinda got used to that Tri Blade i Flew yesturday. I was surprised because i run around 1500 More RPM at the tail with my personal heli and with a tt.

[Happy|Harry]

i have friends also bob so just because i don't currently own a 500 size heli doesn't mean i haven't flown or owned 1 or 2 of them in my time ;), so my statement is from fact like yours is bob, also why the sudden change from making the head and tail for the HDX500 to the REX500?

there is lots of video evidence out there to show that the rex500 and hdx500 both have strong enough tails to do the hardest 3D, and before you claim "those are pro pilots they could make a brick fly well" this is not the case as the heli needs to be capable of this type of flying whoever is on the sticks and just because you can't make it fly like that doesn't make the heli weak in any way.

anyway good luck with your venture, i'm sure you'll do well with it :)

phil

[BobOD]

Um...I'm not sure why it is worth the question but...what the heck...some may be interested in knowing some history. I was working on the HDX500 before the Trex500 even came out. What's really cool is that my parts are pretty adaptable to either heli and offer improvements to both. When I slapped the tail on the Trex, the result was just incredible...unlike anything out there. I have both helis and like both machines although, at the moment, I prefer to fly the HDX. That's probably because I have developed it more over a longer period. Once I get the the main rotor assembly completed for the Trex...well, we'll see.

As to your remaining comments, they seem more directed to your wish to "get even" with Scott for whatever personal reason that you have so I'll not comment.

[BobOD]

I was flying my personal 500 today. AND I was doing the Maneuver where i piro one way, stop start the Piro the other way, Stop and piro back the other way. And my tail was Lagging. The tail wouldnt change direction as good as the one with the Tri blade. I guess i kinda got used to that Tri Blade i Flew yesturday. I was surprised because i run around 1500 More RPM at the tail with my personal heli and with a tt.

It should be no surprise my friend. ;) You have tasted this power level now and it's going to be impossible to go back. Don't resist it. :D
It doesn't exist anywhere else.