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Old 12-24-2009 | 01:48 PM
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chemie
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From: middle of , MI
Default GP Extra 300S - Group Winter Build

So, I noticed that several [link=http://www.rcuniverse.com/forum/fb.asp?m=9136707]folks[/link] had mentioned they were planning on building the GP Extra 300S this winter so here is yet another build thread for this kit. Yes, there have been a few as recently as a few weeks ago but they are nearing the completion and I am just about to start!

This will start tomorrow once the wrapping is removed and I am allowed to break into the box. I will detail my build, along with mods, but welcome others who are doing this build over the holidays and into the New Year to join. I know I have lots of questions that were not answered in the many threads.

Planned mods:

1. Tail control surfaces mod per [link=http://www.rcuniverse.com/forum/m_1062376/anchors_1062376/mpage_1/key_extra+300/anchor/tm.htm#1062376]Adrian[/link]. However, I do plan some changes beyond what he did on the elevator so stay tuned for that portion later.
2. Dual, rear mounted elevators per photos from [link=http://www.rcuniverse.com/forum/fb.asp?m=9037736]Deadeye[/link] . However, I might move them a little forward (not under the elevator).
3. Extend Ailerons one bay.
4. 4-40 hardware on surfaces
5. Pull-Pull ([link=http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXEVW5]Dubro 4-40[/link]) and larger [link=http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXD936]horns[/link] on the rudder.
6. Minor tweaks to landing gear structure and mount them with bolts and blind nuts vs wood screws
7. Add blind nut to wind mounts
8. 16 oz [link=http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXFU54]tank.[/link] (I sure hope I can get it to fit).

Planned Equipment:
1. Futaba S3004 for everything but rudder will be Futaba S3305
2. ST 90 with Pitts muffler (this is a really old engine (Italy version) I got at a swap meet...seems to run fine ....
3. Prop = 14x6 as starting point for prop (maybe 15x4??)
4. 1100 mAh 6V battery pack from [link=http://www.radicalrc.com/shop/index.php?rec=24&shop=1&cart=3361970&cat=19&keywor ds=&match_criteria=&searchCat=]Radicalrc.[/link]
5. External charge port for field charging also from [link=http://www.radicalrc.com/shop/?shop=1&cart=3361970&cat=196]radical.[/link] (half down page "Standard Duty Switch with charge jack").
6. Cover in MK Forest green and Gold. (This will be my first cowl painting job)

This is my second built (First was a SSE which I did minor mods to) and it left me wanting to do more customizations next time.

So, will start by opening and sorting the wood; will post tail control surfaces in next few days.