gen3v8

My Feedback: (1)

I ground the motor output shaft too shorten it. This should lessen the load on the pissy housing engine mount by keeping all spinning parts close. Also inside turning the housing for motor clearance. Funnily enough I outside turned the drum of my 1st ,motor attempt and could not balance anything. After finally just spinning the motor up alone and finding it was the problem. In the junk box it went for spare windings at least.
Regards Dave.

Extreme_RC

Thats a little less thrust than a 90mm Midifan does at 2200 watts on 6 cells without an intake lip.

I tested the Haoye 100mm rotor a few weeks ago, set it up to run on 8 cells at 100A or 3000w, I got the power levels spot on but the fan barely pushed 4.5kg thrust on the test stand and this is in a skyworld alloy housing with intake lip. I am going to cut down a dynamax rotor I think and test that, will produce a lot more thrust, these large Haoye rotors are not very efficient.

mice1m

every body knows lots of pitch means less static thrust but mooooore speed...My old kyosho F16 has a haoye 3inch (76mm) fan cut down to 73mm in the original housing, 800 watts,900grams thrust (IN THE PLANE) 1300g  w"lip on test, Plane weighs 900g........228kph or 141.3mph yes 228kph Haoye Haoye Haoye.fastest fans on the market.....and lite..

gen3v8

My Feedback: (1)

I must admit the thrust measured (IN THE PLANE) is often far off the test bench figures. The pitch issue is prolly the same as proped motors ie more pitch = less static, more speed and less noise. Keeping an eye on your batt draw of course.

Any way put a gps unit in my f16 today and pulled 148mph. Hey mice how did you measure your speed

mice1m

I used a GPS ,Haoye fans are very efficient at high speed which is what your jet is suposed to be (fast),unless u want to hoveror you have drag issuesstatic thrust isnt really a good test'..........90mm 306g with motor haoye fan,2700w 4kg thrust ($40 fan and motor,)....102mm 510g with motor haoye fan 3200w 4.9kg thrust can pull over 4kw easy with more volts. ($60 fan and motor) but the best thing is the speed and motor noise is very quiet

profgigawatt

My Feedback: (6)

Thought I would share some of my experience with low cost fans. I am running a 100 mm low cost fan on 8s 5000 at 92 amps and 2700 watts. The fan is in a modified Fly Fly F-86 at 9 pounds. That's 300 watts per pound. If you are looking for cheap fans that put out 4000+ watts then what low cost airframe is out there? I can't seem to find a plane that will handle that kind of power that fits into the "low cost" category. My F-86 will fly at 50 to 60 % power and go vertical from level flight at WOT. I would like to know what uses 4000 watts and fits the low cost subject of this thread. Maybe I'm too cheap, I remember 18 cent a gallon gas!

When I bought a low cost fan I ran it on my lathe to check the run out. Must be that I got one that was out of spec. One manufacturers 5 mm + or - added to or times another manufacturers 5 mm + or - can become a problem. Not only was the impeller hub drilled off center but the aluminum shaft was likewise bored off center, you couldn't balance the impeller / shaft. I had to machine the shaft. I did get the impeller as close as I could on a magnetic balancer. Here again I had to make an aluminum spacer to fit the balancer shaft / impeller because the tapered centers on the balancer were not true. My low cost fan runs well enough now that I've gotten two 5" to try with my 4035 xxx motors. The fan housing will have to be opened and reinforced to get those motors to work to my liking but they are so much lighter than either my 5" IC to electric conversions that the effort should be worth it. I'll be using motors of 500kv, 630kv and the 1070kv with the "spool" on the shaft end and battery counts to fit the need. I'm pleased with the low cost fan but it took some time and equipment to make it right.

mice1m

MY 90mm lander fan 1800w 2.8kg thrust on test bench, 2.1kg in the plane which weighs 2.1kg 1-1( fiberglass fuse )only does 192kph,,My 70mm haoye foamy f16  rips it and sounds better ...so now i have a collection of haoye"s,...
 An outrunner.500 heli motor at 1800w in a 90mm fan runs cold.......,no need to have a heavy metal housing just to TRY and cool a poor choice of motor

profgigawatt

My Feedback: (6)

My 4035's are heli motors. The 1070kv is in the 102 mm fan. I've been asked to put another together for a fellow edf/turbine friend. The 100 mm fan is a good fit for the size of planes I can haul around. That may seem to be over kill for that fan but your point of running a cool motor and not melting a fan is a very good one. I wonder what that fan on 12s would do, the motor is rated at 4700 watts. There's a 200 amp ESC somewhere in my shop.

Extreme_RC

Not entirelytrue, the HET6904 pulls more amps and produces more static thrust than the wemo minifan when using the same motor as it has more aggressive pitch, in the same airframe its faster in the air. I have flown the Haoye rotors since 2007, the 90mm could never keep up with a wemotec Midifan in the air, lots of people been there done that and have posted up their results.Static testing is a necessary process to get a baseline onvarious fan combos, its easy enough to test efflux velocity on the stand at the same time.

The Lander 69mm fan run with both stock Chinese rotor and wemotec minifan rotor produces the same thrust on the bench, yet in the air the wemo is noticeably quicker. Goes against your theory of the faster fan being lower in static thrust

My Extreme F16 ran a 69mm wemo fan with HET2W18 and pulled 820 watts on 2500mah 4s1p packs, was clocked with a radar gun at 138mph.
GPS is not something I would rely on, post up a video showing clean level passes in front of the camera so it can be dopplered. Being 73mm it should perform better than a stock 69mm fan....

Thrust is a very necessary component, without it you wont go anywhere And the airframe and inlet/exhaust ducting will make a huge impact on how the fan performs.

mice1m

just as i said my haoye is faster than your wemo!!!! with less watts==efficient +++your proof im right...

mice1m

perfect pitch, perfect load perfect thrust,.......,but if you increase the Pitch a tad you will LOSE thrust but gain speed in the air...yes or no?.........yes
played with wemo 's wasnt impressed...

mice1m

kyosho f16 purchased 9 years ago,
turborix 2200kv 400 size outrunner
turborix 60a esc
haoye 3inch fan cut to 73mm
4cell 2200 40c turnigy lipo.
50a under 800w 900g thrust in the plane weighs 900g all up=
=141.3mph 228kph forwards,,,,5kph backwards.

Extreme_RC

As I said, video proof, otherwise its just hot air.

Sansan

My Feedback: (1)

what motor did you use - what brand and kV?

mice1m

Yes San ,,102mm hoayefan ,HKT600 880kv 3kw 3kg without inlet......3.2kw 4.9kg 89a 10cell with lip.
Hoaye 90mm fan HK 500H 1600kv black heli outrunner 7cell,,,,,,2.1kw 3.2kg,,,,,,,,,,8cell, 2.7kw 4kg thrust with lip
.But thats probably all hot air.

Extreme is going to provide proof otherwise he is no better...proof of less performance...

Besides its raining so give me a couple of days.to provide video.....

...You are all welcome to come down to sydney model aero club to see for yourself or just a chat...

http://youtu.be/CRuZ92vtVSU

Extreme_RC

The 90mm midifan runs ARC3665-1, 3.5kg thrust at 2200 watts with intake lip, its used by many all round the world, heaps of info on rcgroups about this one.
In the 100mm fan I was using an HET700-83-1080Kv on 8 cells, I get 4.6kg thrust at 3000w, the currentinlet lip is very small though and hampers the static testing, with a fullsize rounded inlet lip it would be closer to 5kg. Your motor Kv is a bit too high for this size fan, so you have a tradeoff of more wasted watts compared to a higher voltage system with a better matched motor.

Extreme_RC

Thats no where near 140mph, more like 110 or so.

THIS is 151mph, no need to even doppler it to see the difference in velocity!
[youtube]http://www.youtube.com/watch?v=1dY1qoErdlc[/youtube]

Extreme_RC

Here is a video ofmy oldestF16 with an HET 70mm fan and 3W motor, no thrust tube just the messy outlet cone at the back, 2200 4s1p 25c, 100mph or so, 500w.
[youtube]http://www.youtube.com/watch?v=jULtoWGCNjk[/youtube]

And heres an old F16 video withsame HET 70mm fan and 2W20 motor, 2200 4s1p 25c battery, 125mph,less than700w. I cant find my video of the 2W18 setup, but it really doesnt matter does it
[youtube]http://www.youtube.com/watch?v=AIHoIZpt22Y[/youtube]

Sansan

My Feedback: (1)

nice video!
thanks for advise about arc - as i understand i have to use more than 6 sell on 100 mm fan

Extreme_RC

Its not that you HAVE to as such, more about picking the best motor match and voltage match to maximise your RPMfor the least amount of watts consumed. The Haoye rotors are always going to be less efficient but in this size range there is not much choice so you have to work with whats available.

mice1m

Thats just a good camera with auto zoom ,,The first two cameras couldnt capture my plane at all.100m of runway it eats in seconds,climing to wash off speed,GPS isnt wrong, 141mph veiwed by all at our feild,already proven.

Those motors Extreme is sugesting are very heavy,take"" 200grams""(a pair of pliers left inyour plane accidentally???) off your vertical climb.,and performance figures ,, Very expensive and overheat to the point of melting.his figures are only burst all mine are constant....

DO not use a heavy inrunner,the weight of your motor can be replaced by batteries.or huge vertical climbing and they are impossible to cool;.Lander tried but failed

This thread is about low cost ,,,on the same power the hoaye will eat a wemo and sound better.much better..

An outrunner will stay over 100% cooler than an inrunner of the same volume or weight ,which means alot more constant power ,,Better heat dispersion=more constant power

Dont think that by spending more you get better

This isnt about hotting up an alarmclock , weight matters.

HAOYE 90mm fan hk 500h 1600kv heli outrunner 8cell 2700w ""4kg thrust"", ""306grams"" $40 for both andvery lite, can sustain "constantly " without melting in flight .
" " 102mm fanTurnigyt600 880 10cell 89amps 3200w 4.9kg thrust runsCOLD , $60 fan+motor very lite
""102mmfanTurnigy H37404910kv 10 cell 98a 3500w 5150kg needs another cell?? running cold
" " 127mm fan turnigy t600 880kv 8cell 135a 4200w 6kg thrust runs warm ....only needs 120 amp esc with a bit of moving air ..$70 fan+motor

cheap cheap cheap

ALL the test i give are done by me..........................................

mice1m

40 35 scorpion 1070 on 8cells will be under 3000w and over4kg thrust will run cold...start on 9cells,,use a watt meter add cells until you get between 110130amps,,.
Your motor will handle 5000w in a fan...the het 700 83 bad choice brick only 3500w constant ,,it will glow.
" " 100amps on 8cell , 9cell expect under 120a 4000w scorpion will run warm with over 5kg thrust.
Not a bad choice for this fan stick with it...120a k force or pentium esc will be fine under 5000w with a little flow of air

Extreme_RC

You are obviously in here to spread disinformation, your video shows a mid performing model that slows right down soon after it goes vertical and drops out of the sky LOL.

Your replies are defensive and antagonistic. ALL my setups run continuously, and many of them have been used around the world for many years, MEGA, NEU, ARC, HET are all widely used across the globe and the numbers prove it. If outrunners were more efficient in fans we would see them dominate, its easier to make them so why do these big players stick to building difficult to manufacture motors??

Inrunners are MORE EFFICIENT than outrunners and unlike you I have tested and run both in the same models,thetest by Carl Rich which was published in American RC-Flyer shows the same results, find it below. Who cares about Lander, they went cheap chinese and it shows.

Mice1m = TROLL

mice1m

1. Carl rich:"stests arnt worth p______on. You cant compare motorswith differentkv orvolts."kv has to be the same"
2. The thrust specs are wrong,,The leveragearms from the pivot pointarnt 1-1.thrust is less than stated.
3. the outrunners haveheavy addapters on the front because they dont fit the fan.Why not use an outrunner that fits? and is much liter.
4.Good luck convincing people that outrunners are much easer to make
5. you have yet to produce any of your own specs..
6.Ramtec and Dynamax large fans now use outrunners.
7.Dynamax 5' fan at 8kw only produces around 10kg thrust ,which according to you isinefficient, but theyare clocking over 220mph "wow"
Both of these resemble a Hoaye,mainlyRamtec, which i have 4..

My first F16 set up 2002

MEGA 16154 2200KV+$160+
JETI 40a esc $170
Kyosho fan
If you look at the photo it still has a Mega sticker. .Ran HOT 500w
ok setup

Now

2200kv chinese outrunner $18
60a chinese esc$40 Runs warm 800w
Haoyefan
Top setup

i gave my wemo"s away.2003

your just dirty mines faster."". You Tosser.."". 141mph over80 members at my club .proven against other planes+GPS

And my f16 " HOVERS "


We all know who the real troll is? "this guy said this and that guy said that and guys all over the world, we all love wee moes,(men with small mustaches)..and you call me a troll???
I"m sorry i didnt see it before ""YOUR GAY"" not that theres anything wrong with that !!! lol ..

mice1m

Haoye 102mm fan (wemo eater)_ $20 atHK

Turnigy 600 H37404910kv outrunner $39 at HK

Tunigy K Force 120a HV esc$120 at HK

motor+ fan = 535grams or 19oz

11 cell
38.44 volts
120.68 amps
4792.2 watts scales MAXED OUTat ""SIX"" kilo"s or 13.2 pounds thrust..................cheap cheap

all running warm. 35000 rpm''' Haoye best fan on the market..... perfect patend.........

Haoye 90mm fan, hk 500h 1600kv heli outrunner ,,8 cell, 2700w, 4kg or 8.8 lb thrust............ wemo eater....