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Gale-Force Ultra GTP |
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(#1)
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Soldermaster Extraordinaire
Offline
Posts: 4,529
Join Date: Apr 2007
Location: Plymouth, MA, USA
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Gale-Force Ultra GTP -
10.12.2008, 01:59 AM
This is just a teaser, but I've thought of resurrecting the EDF-powered GTP in light of this new forum we have here. I think it would be a sweet "Project-X". A lot of you probably remember when I first had the idea. It never really got started because I didn't have the funds to buy what I needed. I still don't and that's why this is a teaser thread. I REALLY WANT TO BUILD IT! I just can't until I have about $2000 in liquid assets. So it may take a while.
Be patient. |
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(#2)
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"If you can't beat em'....shoot em'
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Posts: 1,728
Join Date: Apr 2008
Location: Sunny So-Cal (Orange County)
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10.12.2008, 02:05 AM
shoot us linc, a picture, something...
 sounds really cool.. I'm looking forward to it..
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(#3)
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Soldermaster Extraordinaire
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Posts: 4,529
Join Date: Apr 2007
Location: Plymouth, MA, USA
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10.12.2008, 02:20 AM
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(#4)
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"If you can't beat em'....shoot em'
Offline
Posts: 1,728
Join Date: Apr 2008
Location: Sunny So-Cal (Orange County)
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10.12.2008, 02:21 AM
that's TOOOO fricken COOL...
OOOOooo no you got me thinking about the possibilities.. Thank you!!! (your such a giver!).. |
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(#5)
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RC-Monster Dual Brushless
Offline
Posts: 5,061
Join Date: Oct 2007
Location: Thousand Oaks CA
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10.15.2008, 09:08 AM
Whoa. How do you plan to slow it down? Mech. brakes?
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(#6)
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Check out my huge box!
Offline
Posts: 11,935
Join Date: Aug 2007
Location: Slidell, LA
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10.15.2008, 10:24 AM
Quote:
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(#7)
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Something, anything, nothing
Offline
Posts: 2,747
Join Date: Mar 2006
Location: Houston, TX
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10.15.2008, 12:43 PM
Or have a servo actuated deflector like real jets use to slow down. That would be sweet.
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(#8)
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"If you can't beat em'....shoot em'
Offline
Posts: 1,728
Join Date: Apr 2008
Location: Sunny So-Cal (Orange County)
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10.15.2008, 01:07 PM
Quote:
 Liking the sound and the direction of it so far..
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(#9)
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Soldermaster Extraordinaire
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Posts: 4,529
Join Date: Apr 2007
Location: Plymouth, MA, USA
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10.15.2008, 07:18 PM
Naw, no parachute. Sorry.
 Definitely mechanical brakes. Though I want to put one on each wheel, if possible. Instead of just one or two on the center dogbones.
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(#10)
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Guest
Posts: n/a
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10.15.2008, 07:39 PM
How about all three? That would be sweet. There was a turbine car in rc car action a bit ago I believe. Actually a truck.
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(#11)
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RC-Monster Mod
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Posts: 5,297
Join Date: Mar 2005
Location: SoCal
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10.15.2008, 07:57 PM
A cheaper alternative to that combo would be to get the EDF unit alone:
http://www.airpowernet.com/twe/produ...roducts_id=530 (6mm shaft version for KB-45) Buy a KB-45 XL motor with a kv that will net you a max of about 30,000 RPM with the desired voltage, and buy my HV-110 .
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(#12)
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Soldermaster Extraordinaire
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Posts: 4,529
Join Date: Apr 2007
Location: Plymouth, MA, USA
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10.15.2008, 08:10 PM
The KB-45s get kinda hot don't they? I'm using one for a power drill conversion and it heats up very quickly. I know the high voltage will be better for efficiency, but how much better? Would I still get 10 lbs. of thrust from it?
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(#13)
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RC-Monster Mod
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Posts: 5,297
Join Date: Mar 2005
Location: SoCal
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10.16.2008, 12:38 AM
If you're using the KB-45 in a power drill, I'm guessing it is way undergeared (over-revving). Obviously power drills are designed with brushed motors, which are typically much lower powered than a brushless motor of the same size.
If the motor were to hit 30,175 RPM, it should give 12.33lb of thrust as noted on the last link I posted. Thrust should be proportional to RPM. |
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(#14)
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Soldermaster Extraordinaire
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Posts: 4,529
Join Date: Apr 2007
Location: Plymouth, MA, USA
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10.16.2008, 01:20 AM
I was thinking about the wasted power versus a more efficient motor. I know it's possible to get the same thrust, but it would use a lot more power since I'd need a higher-Kv motor to make up for the losses.
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(#15)
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RC-Monster Mod
Offline
Posts: 5,297
Join Date: Mar 2005
Location: SoCal
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10.16.2008, 01:36 AM
A Neu would definitely be a better non-budget minded motor
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