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Old Sep 11, 2009, 01:13 AM
Team White Llama!
gundamnitpete's Avatar
Joined Jan 2008
8,144 Posts
Cool
ReVolt 70mm Flyable Concept @ 3000watts maiden video added

Here is my brand spanking new ReVolt concept. This is a high performance composite jet based around the new generation of 70mm high powered EDF's, Designed, Sourced, plugged, moulded, and assembled right here in the USA . I'd say this one isn't for everyone, you'll need a 4S 5000 atleast to get it to CG. We've flown one using a JS1400 and 4S 5000, and this is about the tamest you want.

My personal ReVolt is running 12S 2250's, running +70 amps and just above 3000watts through the schubler DS-30 fan.

Yes, you read it right, 3000 watts through the 70mm schubie , i don't have a way to accurately measure, but fan calc estimate +70,000rpm, and +250mph efflux. Thrust is 6 pounds with 40C's and just under 6 with 30C's, installed. The decible level is insane, ear protection required. I put the eye protection on just pluggin it in.


I have yet to maiden mine, but i hope to do so tomorrow morning, god willing . We've used a number of test models to get our CG and control throws exactly where we want them, along with how it can be manufactured with lightest weight and highest strength, Currently Epoxy resin and fibreglass.

The few concepts that have been produced were used for testing. Additional provisions will be made for wiring, most likely changing the canopy layout and adding extra room for the ESC, Aswell as full ducting (of course).


Tail surfaces and wing are vaccum molded, tail surfaces are fully aerofoiled. I've been told the plan is to paint the entire airframe in the mold, and include live hinges (hinging in the mold, for those of you who didn't know). This should help keep assemblely time to a minimum.

Here is a short test run of the 3kw 70mm edf:

Revolt 70mm Concept @ 3000 watts (0 min 38 sec)




and here is the maiden today:

ReVolt 70mm concept maiden at 3000 watts (2 min 57 sec)



sorry about the camera work! we will get better video next time.


for those of you going to E-jets, keep an eye out for it
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Last edited by gundamnitpete; Sep 11, 2009 at 06:03 PM.
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Old Sep 11, 2009, 06:46 AM
Speed Demon
GregG's Avatar
Antioch,CA,USA
Joined Dec 1999
12,297 Posts
Nothing like pushing the envelope a bit further!

What motor are you using Pete?
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Old Sep 11, 2009, 07:13 AM
Faster!
Joshua Wesley's Avatar
United States, NV, Sparks
Joined Oct 2004
1,139 Posts
Holy crap! Flight video would be nice!
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Old Sep 11, 2009, 07:36 AM
Needs a vacation
thermlin''s Avatar
In a house
Joined Nov 2005
2,246 Posts
Did that say... 5... 5 pounds of thrust?!
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Old Sep 11, 2009, 11:44 AM
Team White Llama!
gundamnitpete's Avatar
Joined Jan 2008
8,144 Posts
yep, about 5 pounds 13 ounces sustained in the airframe on 30C's, 6 on 40C's

Hoping to get flight video today, and bring it to E-jets
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Old Sep 11, 2009, 01:28 PM
Suspended Account
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Mokena,Illinois -United States
Joined Oct 2006
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Nice pete!!!!
Talk to ya soon!
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Old Sep 11, 2009, 02:03 PM
smug in granny panties
monkamarm2000's Avatar
NorCal Silicon Valley
Joined Aug 2002
11,778 Posts
love it! cant wait to see how it goes.
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Old Sep 11, 2009, 02:06 PM
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lavochkin's Avatar
Mokena,Illinois -United States
Joined Oct 2006
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On that power it should go like hell!!!! Im trying to figure out how to stuff it into my pyranha.
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Old Sep 11, 2009, 02:13 PM
smug in granny panties
monkamarm2000's Avatar
NorCal Silicon Valley
Joined Aug 2002
11,778 Posts
me too! lol got a few ds30 looking for homes.



barry
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Old Sep 11, 2009, 05:58 PM
See the Fur Fly
FNFAL's Avatar
Dayton, OH
Joined Oct 2006
917 Posts
Well it's good to know the Shubeler can take 3K watts. I don't feel so bad now overspeeding mine 10%. I wonder why the 50K RPM limit? Perhaps that's max eff rather than exploding speed...I don't know. What motor are you using with 12S?
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Old Sep 11, 2009, 06:05 PM
Team White Llama!
gundamnitpete's Avatar
Joined Jan 2008
8,144 Posts
okay guys the video is up! since it was the maiden we didn't really rip on it, but just wanted to get everything all dialed in. only used full throttle for takeoff (check out that acceleration!) and once for a vertical climb(you'll hear it).

Next time, we'll get closer and get you guys some good doppler'able footage.
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Old Sep 11, 2009, 06:26 PM
Matrix 90 & 100mm sport jet
Getmore Rc's Avatar
Merritt Island Fl
Joined Aug 2008
1,046 Posts
Good job Pete. Look's like you need to clean the air frame up alot to get some really good speed out of it though.
12s will fly a brick if you have a thick wing and sharp nose
but hay it will hand launch that is cool good luck.

Bill
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Last edited by Getmorc; Sep 11, 2009 at 06:34 PM.
Old Sep 11, 2009, 06:36 PM
Team White Llama!
gundamnitpete's Avatar
Joined Jan 2008
8,144 Posts
Quote:
Originally Posted by Getmorc
Good job Pete. Look's like you need to clean the air frame up alot to get some really good speed out of it though.
12s will fly a brick if you have a thick wing and sharp nose
but hay it will hand launch that is cool good luck.

Bill

I couldn't find any other edf that fits a 70 and will allow the use of 25oz of lipo and still CG.


We will see the speed when i open her up

not to mention, an unpowered brick dropped from 7,000 feet will go faster than any of our edfs.


thanks!
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Old Sep 11, 2009, 07:02 PM
Matrix 90 & 100mm sport jet
Getmore Rc's Avatar
Merritt Island Fl
Joined Aug 2008
1,046 Posts
Quote:
Originally Posted by gundamnitpete
I couldn't find any other edf that fits a 70 and will allow the use of 25oz of lipo and still CG.


We will see the speed when i open her up

not to mention, an unpowered brick dropped from 7,000 feet will go faster than any of our edfs.


thanks!
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Old Sep 13, 2009, 10:48 AM
Wonderfully Wicked
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Willoughby, Ohio
Joined Jan 2002
12,972 Posts
Pete,

I checked your rpm and on that video and it started at 75,000 rpm then dropped down to 72,500 rpm. That is a lot or rpm!

Don
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