HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Sep 10, 2003, 03:40 PM
Lithium Member
Herb's Avatar
Irvine, Calif USA
Joined Feb 1999
12,176 Posts
F-4U Corsair by GWS

Just about finished the Corsair . A very nice design again ...

Did not have any problems with the recommended single-servo linkage setup for the ailerons which seems to work well and look quite good...
Herb is offline Find More Posts by Herb
Reply With Quote
Sign up now
to remove ads between posts
Old Sep 10, 2003, 03:41 PM
Lithium Member
Herb's Avatar
Irvine, Calif USA
Joined Feb 1999
12,176 Posts
Did not have any problems with the recommended single-servo linkage setup for the ailerons which seems to work well and look quite good...
Herb is offline Find More Posts by Herb
Reply With Quote
Old Sep 10, 2003, 03:42 PM
Lithium Member
Herb's Avatar
Irvine, Calif USA
Joined Feb 1999
12,176 Posts
The color stripes for the canopy don't quite match the dark navy blue of the rest of the plane, so I will have to hand paint the frame instead....
Herb is offline Find More Posts by Herb
Reply With Quote
Old Sep 10, 2003, 04:34 PM
Lookin' Good. Real Good.
larsy87's Avatar
London, Canada
Joined Aug 2002
3,979 Posts
Looks good! Put some decals on there though!!

So did you press down the wire or bend it for the ailerons?
larsy87 is offline Find More Posts by larsy87
Reply With Quote
Old Sep 10, 2003, 05:03 PM
agriebel's Avatar
Madison WI
Joined Aug 2003
1,805 Posts
Is that the 3 blade GWS prop?
agriebel is offline Find More Posts by agriebel
Site Sponsor
Reply With Quote
Old Sep 10, 2003, 05:44 PM
Lithium Member
Herb's Avatar
Irvine, Calif USA
Joined Feb 1999
12,176 Posts
For the aileron linkage I used 5-min epoxy and pressed it down with a screwdriver till it set. Later added a bit more 5-min epoxy on top to give it a good grip on the foam.

The middle plastic tube has to be positioned just where the wing bends, that way the whole assembly gets pulled down nicely into the grove.

No, I did not bend the wire !!!

Decals will go on after airbrushing. They all need to be trimmed too otherwise they look funny...

The prop is a 3-bladed Flying Styro prop from my LHS. I don't like orange props.

As I said, beautiful kit!
Herb is offline Find More Posts by Herb
Reply With Quote
Old Sep 10, 2003, 06:56 PM
Lithium Member
Herb's Avatar
Irvine, Calif USA
Joined Feb 1999
12,176 Posts
Yesterday I hooked up the supplied stock 350 motor and stock gearbox with stock orange 9x6 prop to my throughly exercised 8-cell Kan 950 packs (from my brushless gws Me-109)

Gasp !!!! 18 Amps or so at full throttle on 8 cells according to my Astro Whattmeter, shut it off instantly, I guess gws does all their measurements on the weaker 720 AAA NiMHd packs ... Looks more like a 6-cell setup ...

Measurements with Astroflight Whattmeter, stock motor and GB, FS 3-bladed prop (I think it's close to a 9x6 ) and Jeti 35 A brushed controller. All batts more or less hot of the charger (Schulze Ultra Duo Plus II) and already cycled & flown for a couple of months... Measurements were taken for a few seconds only, as the S300 brushes will melt above 8A or so ... The 720's could be getting weak from prolonged usage, I don't know.

8 x Sanyo 720 NiMHd -> 8.7 A, 5.3 V, 46 Watts (average of two separate packs)

12 x Sanyo 720 NiMHd -> 12.2 A, 6.8 V, 83 Watts (note large voltage depression)

8 x Kan 950 NiMHd -> 15.9 A, 7.2 V, 114 Watts (average of two separate packs)

[Note: the Kan's are in good shape & thoroughly exercised, have been flown for two months in the P-51 & Me-109 at 20+ A discharge rates. It's well known that they have much lower internal resistance than the Sanyo 720's.]
Herb is offline Find More Posts by Herb
Last edited by Herb; Sep 12, 2003 at 01:59 PM.
Reply With Quote
Old Sep 11, 2003, 02:00 AM
Registered User
Rudi's Avatar
Österreich, Oberösterreich, Laakirchen
Joined Jan 2001
3,351 Posts
Servus Herb,

are this tyres orig. or do you use some others ? I get my GWS A-10 an I will upgrade it with other tyres , but the axies are to short I plan to glue a alutube on the axis to make them longer, or bent a new gear . How did you solved this prob.
Do you plan to surface your F4U before airbrushing. I had a lot of pimple on my A-10 and I think about to sand them away, but this destroys the orig. painting ?

Grüsse aus Wien

Rudi
Rudi is offline Find More Posts by Rudi
Reply With Quote
Old Sep 11, 2003, 04:49 PM
Lithium Member
Herb's Avatar
Irvine, Calif USA
Joined Feb 1999
12,176 Posts
Servus Rudi !

No they are not the original tires - which work well but look a bit silly on the Corsair ...

On the A-10 I replaced the steel wire with thicker and longer one. But you can just wait until yours breaks and then do it... The LG on the A-10 is not bad, I had many flights with it before I replaced the wire. Now of course it has no LG as I busted that one too eventually

No, I won't do anything on the F-4U surfaces except some ultralight sanding to remove just the dimples - but not the paint. I want to keep it light. Just some navy blue touchup and some medium blue & white with the airbrush.
Herb is offline Find More Posts by Herb
Reply With Quote
Old Sep 11, 2003, 06:20 PM
Lookin' Good. Real Good.
larsy87's Avatar
London, Canada
Joined Aug 2002
3,979 Posts
SO the GWS 350 motor draws 18 amps at WOT? I remember seeing some data about it being only 8.8 or something amps

Cam
larsy87 is offline Find More Posts by larsy87
Reply With Quote
Old Sep 11, 2003, 08:00 PM
Lithium Member
Herb's Avatar
Irvine, Calif USA
Joined Feb 1999
12,176 Posts
The Kan 950 cells have much lower resistance than the Sanyo 720 AAA's that most people use ( 8 milliOhms vs. 40 MilliOhms ).

Using the lower resistance Kans - which I use in my brushless P-51 and Me-109

http://www.rcgroups.com/forums/showt...hreadid=119365

- made the amps shoot through the roof . The morale is that on the Kan 950's one has to go down to six cells or so ...
Herb is offline Find More Posts by Herb
Reply With Quote
Old Sep 11, 2003, 08:11 PM
Lookin' Good. Real Good.
larsy87's Avatar
London, Canada
Joined Aug 2002
3,979 Posts
Ok...so it was the batteries not the motor? I think that's what you were saying.
larsy87 is offline Find More Posts by larsy87
Reply With Quote
Old Sep 11, 2003, 11:55 PM
Registered User
hyperknight's Avatar
Irvine, CA
Joined Apr 2003
1,346 Posts
Herb,

When do you plan on flying it? I'd like to see it when you take her out. Still fly at the fairview field?

Let me know.

Thanks,

hk
hyperknight is offline Find More Posts by hyperknight
Reply With Quote
Old Sep 12, 2003, 03:37 AM
Houng-wen Lin
GWS4CEO's Avatar
Shijr, Taiwan. DungGwan, China. City of Industry, California.
Joined Sep 2001
19,445 Posts
Wish you will have nice weekend to enjoy GWS F4U!
GWS4CEO is offline Find More Posts by GWS4CEO
Reply With Quote
Old Sep 12, 2003, 05:36 AM
veni,vidi, roto volubilis
Happy|Harry's Avatar
Aberdeen, Scotland
Joined Jul 2003
6,957 Posts
Quote:
Originally posted by Herb
Yesterday I hooked up the supplied stock 350 motor and stock gearbox with stock orange 9x6 prop to my throughly exercised 8-cell Kan 950 packs (from my brushless gws Me-109)

Gasp !!!! 18 Amps full throttle on 8 cells according to my Astro Whattmeter, shut it off instantly, I guess gws does all their measurements on their weak 720 AAA NiMHd packs ... Looks more like a 6-cell setup ...
are you saying you got 18A static with 8cells a GWS350 in a GWS300C-C gearbox with the GWS 9070SF prop?

phil
Happy|Harry is offline Find More Posts by Happy|Harry
Last edited by Happy|Harry; Sep 12, 2003 at 05:38 AM.
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Idea 3 cell Lipo for GWS F-4U Corsair mtuck2 Parkflyers 7 Aug 25, 2007 11:33 PM
F-4U Corsair Video with Himax upgrade Splash Parkflyers 195 Apr 07, 2004 05:26 PM
Flying Styro F-4U Corsair w/motor, ESC,& Li battery bruff Aircraft - Electric - Airplanes (FS/W) 1 Aug 05, 2003 09:08 PM
F-4U corsair color scheme denverone Scale Kit/Scratch Built 14 Feb 27, 2003 05:43 PM
F-4u Corsair w Astro 010 brushless bruff Aircraft - Electric - Airplanes (FS/W) 3 Apr 16, 2002 12:20 AM