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-   -   Is this for real? (https://www.rcuniverse.com/forum/rc-jets-120/10517541-real.html)

FalconWings 05-13-2011 07:38 AM
Is this for real?
 
Are we there yet?

[youtube]http://www.youtube.com/watch?v=mQXJBhEIeOs[/youtube]

mr_matt 05-13-2011 07:43 AM
RE: Is this for real?
 
I think it is a normal turbine with a windmill fan in front of it.

I still can't believe they are running plastic SLA fans in front of those things!

RUFTER 05-13-2011 07:46 AM
RE: Is this for real?
 
Seems to me it's just a fan mounted in front of the turbine, but not connected to it. The suction makes it spin. In the last few second you hear the turbine running but the fan is stationary.

Regards, Bart.

FalconWings 05-13-2011 07:46 AM
RE: Is this for real?
 
oh no they didn't! That is just adding dead load to the compressor? Free spin?

Looks really cool though.

FalconWings 05-13-2011 07:48 AM
RE: Is this for real?
 

ORIGINAL: RUFTER

Seems to me it's just a fan mounted in front of the turbine, but not connected to it. The suction makes it spin. In the last few second you hear the turbine running but the fan is stationary.

Regards, Bart.

Probably a Hight Temp ECU shutdown, they are starving the inlet out of air.

mr_matt 05-13-2011 07:51 AM
RE: Is this for real?
 
I think there are a bunch of guys already flying this same type of system, both on Mibo and Skymaster.

Well, a "bunch"...maybe more like 2 or 3. And I have heard of some fans coming apart

Joe C 05-13-2011 08:04 AM
RE: Is this for real?
 
I have a set in my Mibo A-10, they are machined out of Aluminum, P160SX, it flew great and no heat issues. Joe C!!!

Alex48 05-13-2011 08:25 AM
RE: Is this for real?
 
1 Attachment(s)
Just free wheeling fans, Skymaster have the same set up on their A10, I've run the engines to full power and no problems yet. The ones in the below photo are done on a 3D printer, they work great.

Joe C 05-13-2011 08:31 AM
RE: Is this for real?
 
I ran my mibo fans on the ground plenty of times and at full power, no problem, when i flew it, they blew up, thank God I had FOD screens, the new Alum machined work great, no issues. Joe C!!!!

GrayUK 05-13-2011 11:40 PM
RE: Is this for real?
 
What sort of 3D printer?

FDM
SLA
SLS
JSD
DMS
Or just a powder printer?

Paul

swasey1982 05-14-2011 12:00 AM
RE: Is this for real?
 
I saw this video a year ago, looks cool and the sound is just great !
[youtube]http://www.youtube.com/watch?v=OJl7Dig1gLQ[/youtube]

Duncan 05-14-2011 01:17 AM
RE: Is this for real?
 
I'm sure i've seen photo's of that from Cali jets last year??

mr_matt 05-14-2011 03:49 AM
RE: Is this for real?
 
Hi Paul,

I am not clear on the process but someone said the material is ABS.

Although we used some new ABS "like" material (at my old job) that was very nice, IMHO this is still an extreme application of RP ABS.

GrayUK 05-18-2011 12:40 AM
RE: Is this for real?
 
Matt
If it is ABS then I would suspect it is FDM (Fused Deposition Modelling)
Interesting application..[X(]

Paul


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