want to know more of Twin mico-jet from multiplex

[$h@d0w]

Cool.

[Babylon5]

Hi Hawkeye/Sh@dow want to know your definition of unlimited vertical.

I have corresponded with some flyers who owns either own a Twin Mj, Mj Fun jet and their perpective vertical unlimited or infinite definition for a pusher or rear power craft with ample thrust the plane will come down at speed level or shallow dive and pull up vertically or steep climb out with little or noticeable decay in speed up to a couple of hundred feet... is their perspective definition of unlimited vertical which is similar to my thoughts and here is one example of unlimited vertical of the video link. This happen to be a twin MJ

http://youtube.com/results?search_query=JustGoFly+TwinJet

Its is not a difficult maneuver given sufficient thrust.

Is this link good enough example of unlimited vertical? If not what is your definition then?


Cheers

[fuse]

topic close, this is not going anywhere.

guys its just a hobby la.


cheer up and lets go fly.

[$h@d0w]

That is precisely my point. Push throttle up all the way from level flight, pull elevator and goes up till you almost can't see it. What we want to see is that your Twin EDF converted Twinjet can do a "possible vertical unlimited" as stated in your post. Simple as that.

No , only about 250 watts per fan.
Estimate thrust is 1.2Kg with a good lipo and on full charge . Plane weight 1.05kg so hand launch is very steep ascent. Unlimited vertical is possible with this setup.

Cheers

[Unorthodox_Sniper]

That is precisely my point. Push throttle up all the way from level flight, pull elevator and goes up till you almost can't see it. What we want to see is that your Twin EDF converted Twinjet can do a "possible vertical unlimited" as stated in your post. Simple as that.

Bingo! My pusher FJ can do that easily but at 400W and my pusher MJ at 250W. Many of us including myself are searching for the holy grail to have such unlimited vertical for an EDF TJ at less than 200W (assuming a 3s lipo at 15A?)

Babylon, if your Twin EDF TJ can do such unlimited vertical at less than 200W it will be a major RC breakthrough and perhaps of great commercial value

[lu wei yao]

KP, You know what's the next step.

Its called a Kolibri Micro Turbine.

Thanx!

[edmond22]

Babylon,

My Ritewing can do a vertical for as long as my eyes can see it. It will not stop but do show some noticeable decay as it goes higher and higher (maybe vision angle perspective). The big BUT to my earlier statement is that I joined the 1KW club to achieve this.

So a speed pass pulled into a vertical climb is pretty much not so good an indicator of vertical as for example my Ritewing in this case travelling at 130mph (not kph) will take a lot time to bleed off that energy in a vertical climb. Even a car at that speed will show fantastic vertical when they hit something. Maybe a better indicator is to go slow (mid throttle), pull into a vertical and apply full power, you will definitely see probably a good vertical but not unlimited vertical. Despite the fact that you mentioned you have 1.25 kg power vs 1.05Kg weight, you have a EDF setup and that power to weight ratio of 1.2 alone for a 3D plane is barely enough to hover comfortably, punch up will be dead slow. My AJ has 1.5 power to weight ratio and it is already showing noticeable decay when punching vertical from a hover position.

I agreed with Fuse that it is a hobby we all enjoy. But instead closing this topic, I think this discussion is healthy and whatever possible errors or misleading information is debated heavily, I think it is especially good read for the newcomers and interested to know the 2 sides of the story. It is a good way of keeping things in check when something amiss or misleading is posted.

So can I propose to Babylon, that perhaps the usage of possible "unlimited vertical" is not that appropriate. All in good faith, no hard feelings, just retract that term and maybe say "good vertical" will suffice. It is just a usage of the most appropriate term at the end of the day I supposed.

[fuse]

maybe fly heli? i can unlimited vertical also heheh


anyway so far only a 3 of my machines can do unlimited vertical from zero air speed.

1) nitro heli ..hehehhe
2) nitro plane (ys63)
3) 1kw glider

[fuse]

btw edf is still not matured yet to have good power output with the current technology. give it a few more years, some bright spark might just make it work..


so far only 2 edf fans have cutting edge technology


the shoe boo la fan and the stumax fan.. both are 120 and 110mm fan that needs 12s hehehhe


shoe bo la fan has 4 blades and stumas i think 12 blades... hehehehhe

[Hawkeye]

gee, thought this thread was dead...

My defination of unlimited vertical....simple....

Vertical - 90 degrees from the ground in all directions...ie: straight up..

Unlimited - Constant velocity upwards as far as the eye can see....with most planes thats about 500m. prefably demonstrated from standing start so that no momentum helps partway....ie: all the thrust goes into moving the plane vertical.

Babylon....your power setup is on the edge...I have seen it...it can do a pretty steep climb but not at 90 deg. More like 60-70deg....and Barely struggling to keep up..

So until you got the right power setup to meet the above definations...try not to sell ice to the eskimos.

[fuse]

try not to sell ice to the eskimos.


sorry ot a bit. i like the statement above.

[yongsinchee]

But you can sell refrigerators to them...

They buy it to keep the food from getting too cold......

[Babylon5]

Shadow/Hawkeye, I am going to forget about your comment or your challenge and start a new year fresh. No hard feeling. We move on .
What say ye?


Cheers

[$h@d0w]

........ I would like to move on too, but what we wanted to know is what you mentioned is true or not. If there's no prove to what you wrote, newbies might get the false information and be misleaded as mentioned by some forumers. YOU have to stand up to what you write and show it to us. Maybe you can patent it and claim royalities!!!

I can claim I got a lame duck that can fly faster than a speeding bullet but at the end of the day, I can't show it because my lame duck has got a broken bone, it's feathers were torn out from it's last flight flying faster than a speeding bullet speed etc etc.

Too bad you didn't manipulate and fool me to just let me see what you want me to see as you claimed previously. I can close this issue and move on but if you keep posting about your latest findings without showing it, those that know that it's empty vessel will move on but I'll pity the poor newbies that believes in it.

[Babylon5]

........ I would like to move on too, but what we wanted to know is what you mentioned is true or not. If there's no prove to what you wrote, newbies might get the false information and be misleaded as mentioned by some forumers. YOU have to stand up to what you write and show it to us. Maybe you can patent it and claim royalities!!!

I can claim I got a lame duck that can fly faster than a speeding bullet but at the end of the day, I can't show it because my lame duck has got a broken bone, it's feathers were torn out from it's last flight flying faster than a speeding bullet speed etc etc.

Too bad you didn't manipulate and fool me to just let me see what you want me to see as you claimed previously. I can close this issue and move on but if you keep posting about your latest findings without showing it, those that know that it's empty vessel will move on but I'll pity the poor newbies that believes in it.

We have different views and perspective. Different views
and perspective ain't misleading statement. If I don't agree with your theory or views does not mean misleading statements.
Misleading statements means you have a motive or an unfair means or agenda against a competitors or make monetary gains.

Moreover, if you look at my thread #15 query to fuse

...with a good lipo and on full charge
Unlimited vertical is possible with this setup.

I meantioned very casually to Fuse (maybe I should not be too casual)

two key things a good lipo(no mention of the types cells ) and the other word "possible".

Is this misleading statement. To me I don't think so because the outcome is quite possible with a good LIPOS since the Lipos are not even defined.

Of course you may not agree but that is my views.

I can also say you have make quite a lot of misleading comment about my plane too like when I forgot to bring my canopy or what my setup or flying condition of my plane and I have said some pretty harsh word on you but I was pretty irritated at that time...but I am going forget about those comment you have made.



Cheers