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Ediii - n/a
28-Oct-07, 07:24 PM
Hello!

It would be desirable will get acquainted.

we are engaged independent construction hovercraft, our company from different cities of Russia.

our forum here:



http://translate.google.com/translate?u=http%3A%2F%2Fkatera (translate.google.com/translate?u=http%3A%2F%2Fkatera.ru%2Fforum%2Findex .php%3Fs%3D46c2f3cd31d2d10a420d19101f4cfb18%26show forum%3D137&langpair=ru%7Cen&hl=en&ie=UTF8). ru%2Fforum%2Findex.php%3Fs%3D46c2f3cd31d2d10a420d1 9101f4cfb1 8%26showforum%3D137&langpair=ru%7Cen&hl=en&ie=UT F8



http://translate.google.com/translate?u=http%3A%2F%2Fkatera (translate.google.com/translate?u=http%3A%2F%2Fkatera.ru%2Fforum%2Findex .php%3Fshowtopic%3D8740%26st%3D0&langpair=ru%7Cen&hl=en&ie=UTF8). ru%2Fforum%2Findex.php%3Fshowtopic%3D8740%26st%3D0&langp air=ru%7Cen&hl=en&ie=UTF8



You have wide experience, and we only begin.



Your friend Edi.

Russ Pullen - n/a
2-Nov-07, 01:58 PM
Hi Edi



Welcome aboard!



Had a great time in Russia in January this year. My father has an agent out ther aiming to manufacture Flying Fish hovers under licence and i thought it might be good to go along. Had a blast, tho i don't know if i could survive anothe banya. For those of you that know my old man, take a look, its pretty funny. The rest of us vodka-fueled idiots stark b*****k naked (mostly covered you'll be relieved to hear) drinking beer and the old man sitting in a sauna reception with a jumper, teapot and (somehow) PG Tips.. Classic!



Dad was out there for various meetings and to inspect the first one off the 'line' - the craft at the beginning of the slideshow. met with another company building craft too. Towards the end of the slideshow, you'll find some pictures of their craft, can't remember what its called now, but its a funny looking beast with two small two strokes thrashing away and a skirt tied to gether with string.



www.russpullen.com/russia



Brilliant country, with some of the most welcoming people its been my pleasure to meet. And what a country for hovers, every river we saw was (a) huge and (b) frozen. Theres already a few hovers operating, they just need more! http://hovercraft.org.uk/images/icons/smiley_icons/icon_lol.gif

kach22i - n/a
5-Nov-07, 05:20 PM
Nice slide show, my computer froze up though, I assume from lack of memory before I could finish it.



Nice though, even the book crease added something to it all.

Ediii - n/a
25-Nov-07, 09:53 PM
Today, the first time the engine is running

(Today, the first time experienced engine)

http://rapidshare.com/files/72259348/__1055___1077___1088___ (rapidshare.com/files/72259348/__1055___1077___1088___1074___1099___1081____1079_ __1072___1087___1091___1089___1082_.wmv.html) 1074___1099___1081____1079___1072___1087___1091___ 1089___108 2_.wmv.html WMV 9 Мб

Ediii - n/a
26-Nov-07, 03:35 PM
Contra-Rotating Two-Stage Axial Impellers

http://eduard-antonov.pochta.ru/flashcard/contr.zip WMV 10,3 Мб

Ediii - n/a
13-Jun-08, 08:02 PM
http://hovercraft.org.uk/images/icons/smiley_icons/icon_biggrin.gif

Contra-Rotating Two-Stage Axial Impellers



13.06.2008

Video skirt: http://antonov-eduard.pochta.ru/flashcard/Poduschka.wmv (antonov-eduard.pochta.ru/flashcard/Poduschka.wmv)





http://eduard-antonov.pochta.ru/3/index.htm (eduard-antonov.pochta.ru/3/index.htm)



index.php?t=getfile&id=1470&private=0

jon_curtis - n/a
13-Jun-08, 08:28 PM
i would say you don't need much help, thats a very impressive craft http://hovercraft.org.uk/images/icons/smiley_icons/icon_smile.gif



does need a fan guard tho.

Jonathan - n/a
13-Jun-08, 08:59 PM
Considering their history with helicopters I guess we shouldn't be surprised the Russians decided to use contra-rotating fans!



I wonder how well they work???

What are the advantages/disadvantages (apart from complexity?)



(I can just imagine the scrutineers faces as they watch the enine started without a duct let alone a duct guard!)

Ediii - n/a
13-Jun-08, 09:46 PM
Complexity does not. A easy ....

index.php?t=getfile&id=1473&private=0

index.php?t=getfile&id=1472&private=0





+20% Efficiency.

+ The direct air flow.

+ Less noise ...

+ Big pressure in the skirt.

Jonathan - n/a
13-Jun-08, 09:50 PM
Complexity does not. A easy ....

index.php?t=getfile&id=1473&private=0

index.php?t=getfile&id=1472&private=0





+20% Efficiency.

+ The direct air flow.

+ Less noise ...

+ Big pressure in the skirt.




http://hovercraft.org.uk/images/icons/smiley_icons/icon_eek.gif Eeep!



ok, I'm Impressed!

Ediii - n/a
13-Jun-08, 10:12 PM
http://eduard-antonov.pochta.ru/14/







furthermore Option:





index.php?t=getfile&id=1474&private=0

Nickcarswell - n/a
14-Jun-08, 12:22 AM
Your not bad at using CAD software ill give you that!!!

hovmart - n/a
14-Jun-08, 06:22 AM
Whats the weight?

jon_curtis - n/a
14-Jun-08, 06:24 AM
i agree!



i do this type of 3d modelling for a living, any chance Edik, that you could post a .STP or .IGES file of these parts,I would love to chuck it into my pro/engineer to play with your design, and run a simulation in pro/mechanica?



many thanks

Ediii - n/a
14-Jun-08, 10:20 AM
My CAD

http://ascon.net/ (ascon.net/)

Here, the compatibility of CAD????

In my CAD is converted into. STP or. IGES.

the correct file? invested in ZIP archive

jon_curtis - n/a
14-Jun-08, 08:47 PM
Many thanks!



thats pretty cool!

noursbabe - n/a
15-Jun-08, 02:28 PM
Bonjour from france ;long time since i have been surfing here and had five minutes to join in the fun been too busy on my prototype.

just noticed just in case someone wants to have a go at counter rotating blades the twin tensioners on the green belted blade are in the wrong place if it is to have any grip on those teeth then they should be above the lower toothed pulley not below tensioning from the middle ,and the green belt which would then have to be fitted first under the lower pulley for the teeth to have any grip.

very wierd they sent that to us with that kind of mistake as they have already built the thing and must of come accross the problem as they seem to of taken some thought into the design.... http://hovercraft.org.uk/images/icons/smiley_icons/icon_confused.gif

jon_curtis - n/a
15-Jun-08, 02:31 PM
they are v belts http://hovercraft.org.uk/images/icons/smiley_icons/icon_smile.gif six of them



index.php?t=getfile&id=1479&private=0



this is an image of the model he posted, i think its rather clever, simple too! i wana build one lol.

noursbabe - n/a
15-Jun-08, 02:36 PM
ah well thet explains all except that we can see the teeth on the green belted lower pulley

jar2 - n/a
15-Jun-08, 04:10 PM
Please re-size your pic Jon - my monitor isn't quite wide enough http://hovercraft.org.uk/images/icons/smiley_icons/icon_lol.gif



I don't want to appear as overly-critical here but... there is something odd about the belt drive system (unless I'm missing some critical bit of info?). If it is a V belt then how come the idlers on the front fan have grooves in them - they will be running on the flat back of the belt? It is also a really bad idea to bend a V belt backwards by more than a few degrees - it usually ends up over stressing the V profile.



There is a far easier way to reverse the front fan direction and that is to turn the belt run by 180 degrees between the lower and upper pulleys (the belt comes off the right side of the lower pulley and enters the upper pulley on the left side). Provided individual V belts are used and the pulley centres are far enough apart it will work perfectly.

hovmart - n/a
15-Jun-08, 04:20 PM
so how much extra weight are we carrying around to gain this 20% increase in thrust, looks to be not worth it to me, still the cad work looks good http://hovercraft.org.uk/images/icons/smiley_icons/icon_smile.gif

team black - n/a
15-Jun-08, 05:04 PM
Bonjour from france ;long time since i have been surfing here and had five minutes to join in the fun been too busy on my prototype.

just noticed just in case someone wants to have a go at counter rotating blades the twin tensioners on the green belted blade are in the wrong place if it is to have any grip on those teeth then they should be above the lower toothed pulley not below tensioning from the middle ,and the green belt which would then have to be fitted first under the lower pulley for the teeth to have any grip.

very wierd they sent that to us with that kind of mistake as they have already built the thing and must of come accross the problem as they seem to of taken some thought into the design.... http://hovercraft.org.uk/images/icons/smiley_icons/icon_confused.gif




It is possible to get HTD belts with teeth on both sides, so the system could be built with HTD

hover t - n/a
15-Jun-08, 05:52 PM
Yes you can get double sided htd belts have a look at this link



http://www.cnfulo.com/double_sided_synchronous_belt.htm



Trev

Paul Fitz - n/a
15-Jun-08, 05:55 PM
The image of the craft is interesting and has obviously taken a lot of work. It looks like a very professional construction job. The transmission arrangement Edik shows would work quite happily with a double-sided serpentine belt. However......



The benefits claimed may be true for fans of certain duties, but would make for a very inefficient hovercraft.



Running two Contra rotating fans in a duct will give a pressure increase of approx 2.5 times that of a single fan of equal dia. at the same speed. The efficiency will be higher because the CR pair will absorb about twice the power of the single. The volume flow however will be the same as the single fan alone.



Mounted in a thrust duct, only the lower part is developing pressure. Even if the fan has a splitter fore and aft of the rear fan the efficiency will not be high enough to achieve 2.5 x the normal pressure and the efficiency. In this part of the duct the efficiency will only be slightly higher than normal, but the fan will develop more pressure to support the heavy craft.



In the upper part of the duct almost twice the power is being used to move the same amount of air making it grossly inefficient.



For a small heavy craft, it would be far more efficient and effective to use a single thrust fan and a shaft or belt driven CR Fan exclusively for lift. Even simpler would be using 2 fans on the same shaft rotating in the same direction. This would deliver almost double the pressure of a single fan without the complexity.

hovmart - n/a
16-Jun-08, 12:01 PM
they would work better if they were closer together and if they did not have all the belts and transmision in between the fans, still think the weight increase will not be worth the effort http://hovercraft.org.uk/images/icons/smiley_icons/icon_confused.gif

kach22i - n/a
16-Jun-08, 01:04 PM
Don't forget, it's just plain cool. http://hovercraft.org.uk/images/icons/smiley_icons/icon_smile.gif

profqwerty - n/a
16-Jun-08, 01:25 PM
I'm very impressed with it from an idea perspective - it never hurts to try.



Also those CADs are frigging awesome http://hovercraft.org.uk/images/icons/smiley_icons/icon_cool.gif

jon_curtis - n/a
16-Jun-08, 05:20 PM
if you think that is cool, you should see the sh1t i draw at work http://hovercraft.org.uk/images/icons/smiley_icons/icon_smile.gif

Ediii - n/a
16-Jun-08, 07:58 PM
Coming soon will be placed on the bevel gear, driving belts are not needed.





You are not quite right about the physicist Contra-Rotating Two-Stage Axial Impellers

http://www.multi-wing.com/technicalsupport/tech_contrarot.ht (http://www.multi-wing.com/technicalsupport/tech_contrarot.htm) m

noursbabe - n/a
17-Jun-08, 03:42 PM
so if each fan has opposite handed blades and rotating in opposed directions; unless the yellow belt was twisted 180 that drawing is un uncorrect.

talking of belts does anyone remember the name of the fancy belts with sets of 3v's like the citroen logo it needed special pulleys also they had absoloutly no power loss.

Paul Fitz - n/a
17-Jun-08, 08:30 PM
No. Looking from the front (long part of the drive shaft) the drive shaft is turning clockwise and the Green top pulley anti-clockwise.

The drive shaft is turning clockwise and the yellow top pulley is turning clockwise.



The only problem with the system as drawn is that the rear belt tensioner is on the tensioned leg of the belt. It should be on the other leg (The "loose" side).



Are you refering to Multi-V or Poly-Rib belts? These are available with 3 x 'V' sections. Better than multiple belts but more expensive and still tend to slip a little!

Jonathan - n/a
18-Jun-08, 05:57 PM
Come on, lets all be honest...



We'd all love to see this craft in operation, and crawl over it in the paddock!

Ediii
15-Mar-09, 04:47 AM
Deleted all my recent posts ? :(

VIDEO: http://antonov-eduard.pochta.ru/flashcard/Rustle1.wmv 34 Md
http://antonov-eduard.pochta.ru/flashcard/Rustle2.wmv (http://antonov-eduard.pochta.ru/flashcard/Rustle2.wmv) 46 Md
Recent tests 07/03/2009 :
http://antonov.edik.pochta.ru/FotoS/uvs090309-009.jpg

webadmin
15-Mar-09, 09:43 AM
Deleted all my recent posts ? :(

VIDEO: http://antonov-eduard.pochta.ru/flashcard/Rustle1.wmv 34 Md
http://antonov-eduard.pochta.ru/flashcard/Rustle2.wmv (http://antonov-eduard.pochta.ru/flashcard/Rustle2.wmv) 46 Md
Recent tests 07/03/2009 :
http://www.antonov.edik.pochta.ru/FotoS/uvs090309-009.jpg

Ediii,

An announcement was placed on the old web site last week notifying everyone that posts made after 6th March would not be saved -sorry!

Mustang Hovercraft
15-Mar-09, 10:25 PM
Don't worry Edi - I'll just have congratulate you again on your sterling efforts! Enjoy your craft ;)