nitro OS .25 VF
09-05-2008, 09:18 AM
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nitro OS .25 VF
Hello guys....
A friend of mine has never used a nitro OS 25 VF or FV, something like that...... it says in the box FOR DUCTED FAN...
Does it mean I can use it with a little jet that works with ducted fan???? If so... where can I get one???? I have seem a couple of 40 nd 90 sizes but nothing small as a 25 size....
what do you think????
09-05-2008, 11:20 AM
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RE: nitro OS .25 VF
Midwest/Kress Axiflow 20. Roughly a 4" dia fan for K/B 20 and OS 25. The OS takes a Wisard pipe and works best with a OS 40 carb and fan air pressure. Runs real nice and does a good job with the Midwest Jetster and the Ziroli line of small ducted fan planes (F15, F4, Viggen).
Be advised that a Wemotec Midi EDF at 3.5" dia puts out a lot more thrust then the Axiflow/OS25.
Be advised that a Wemotec Midi EDF at 3.5" dia puts out a lot more thrust then the Axiflow/OS25.
09-05-2008, 11:59 AM
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RE: nitro OS .25 VF
Wow, thanks for the info,
I am completely new to ducted fan planes....
I do not have any information on the web about the wirsard pipe, neither the axiflow 20......
Also, I still do not find where I can find the small 25 size ducted fan planes..... I found the website ziroliplanes.com but I do not find anything small...
Could you please provide me with some links to read more about this???? I would be really interested in putting together a plane with ducted fan 25 size.... I would use the OS 25 VF because I can get one second hand in new conditions....
09-08-2008, 07:13 PM
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RE: nitro OS .25 VF
You may have to ask if Ziroli has any of the old plans. The pipe is a Macs product. Midwest Jetster kits can still be found for sale on various internet sites.
05-01-2009, 04:01 AM
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RE: nitro OS .25 VF
Hi there guye! I am in the same situation as you were almost a year ago. I can get a os .25 vf new at a great price! But dont know what to put it in. I scrach build most of my planes and have no experience with D/Fans. Did you come right?
Sean
Sean
05-01-2009, 01:54 PM
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RE: nitro OS .25 VF
Try the Jets forum in the "wet" section. You can post a wanted ad right in the forum. Somebody will have a Midwest/Kress fan for that engine.
Be prepared to pay as some guys think this stuff is golden....
Sean, couple of years ago, I built Ziroli's He-162 he designed for 3.5 EDF and mounted a Midwest RK20 w. OS 25VF instead of the electric
fan. Unfortunately, I did not take any pictures but it flew great and was quite fast. You can get the plans for this plane from Model
Airplane News. This is a larger version to give you an idea of what it looks like.
One guy in our club put his OS25VF in a Simitar and ran a prop on it.
Be prepared to pay as some guys think this stuff is golden....
Sean, couple of years ago, I built Ziroli's He-162 he designed for 3.5 EDF and mounted a Midwest RK20 w. OS 25VF instead of the electric
fan. Unfortunately, I did not take any pictures but it flew great and was quite fast. You can get the plans for this plane from Model
Airplane News. This is a larger version to give you an idea of what it looks like.
One guy in our club put his OS25VF in a Simitar and ran a prop on it.
