Thread Tools
Old Oct 10, 2008, 10:31 AM
starscreamaz is offline
Find More Posts by starscreamaz
Registered User
Joined Jun 2008
53 Posts
GWS A-4 pusher build

Need some help picking out my motor. Leaning toward a Grayson Super Mega Jet and an APC 6x4 but not sure. This combo works great on my Shumate F-14. Seems like AUW for the A-4 is over 30oz with the ducted fan and landing gear. Since I am not installing either she should top out under 30oz. Haven't found much information out there. Any opinions would be appreciated.
starscreamaz is offline Find More Posts by starscreamaz
Reply With Quote
Sign up now
to remove ads between posts
Old Oct 11, 2008, 10:28 AM
herk1 is offline
Find More Posts by herk1
Trash Hauler emeritus
herk1's Avatar
Maryland, USA
Joined Oct 2006
1,750 Posts
I have been thinking of building a pusher GWS J-10, which is the twin (same size/weight) to GWS's A-4. If/when I do, I will try this new Scorpion pusher-jet motor. There is an announcement with some performance information about that motor and another smaller new pusher motor here (I would definitely go with the bigger one).

I currently have a pusher-powered GWS F-15, which is also about the same size and weight as the GWS A-4, but a quite different shape, and I power it with a Medusa MR-028-040-1700V2, which is on this page. With a 7x5 prop, it's just perfect for the plane, and gives 1:1 thrust and plenty of speed, but the only thing is that it's physically kind of long, so it might not be so convenient to mount on the A-4 and J-10, the way they have the pusher mount designed (hard to tell from the diagrams). It works fine on the F-15 though, because it sits partially on top of the exhaust nozzles, and just required a little trimming of the foam.

There is a short thread about the GWS A-4 as a pusher here.
herk1 is offline Find More Posts by herk1
Reply With Quote

Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Build Log GWS A-4 Build Log / General Discussion FresnoJay Foamy EDFs 4180 Yesterday 02:03 AM
GWS IPSD 4,8V, and 1020mAh Lipoly, what should I build? Zeroaltitude Parkflyers 0 May 22, 2003 07:29 AM
My GWS A-10 PUSHER build- say no to EDF! Your opinion wanted! Etonic Parkflyers 128 May 06, 2003 01:00 PM
I quit! No more GWS RX 4 Me! sukhoi26mx Parkflyers 71 May 28, 2002 09:47 AM
GWS equipment 4 sale, plus more MKH Aircraft - Electric - Airplanes (FS/W) 1 Dec 22, 2001 05:08 PM