RE: Redesigned 28% Extra 300 Build / Questions  
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RE: Redesigned 28% Extra 300 Build / Ques... - 10/11/2006 5:18:42 AM   
Tired Old Man


 

Posts: 12012
Joined: 2/25/2002
From: Central, CA, USA
Status: offline 		Depending on the surface deflections and airspeed it should snap out when it's pulled hard. An aircraft can stall at any airspeed and at any attitude. FAA Student Pilot training 101. Models are no different, just smaller with more power. Controllability is a matter of correctly making stick inputs for the condition of flight, not corner banging.

OTOH, if you're setting up for IMAC and depending on being able to hammer the sticks to the stops to perform an effective snap, then a reduction in surface deflection is in order. I am definately not one that believes in this method of performing a maneuver.

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If you can''t fix it with a hammer, you have an electrical problem.

(in reply to cyoung450)
       Post #: 351

RE: Redesigned 28% Extra 300 Build / Ques... - 10/11/2006 12:42:49 PM   
dhawks


 

Posts: 48
Joined: 3/9/2005
From: , VA,
Status: offline 		I've been looking at this plane for awhile and it looks like a candidate for a 3W-56 twin. Can someone give me the cowl dimensions? I'm interested to know if the twin will fit in the cowl.

Dennis

(in reply to Tired Old Man)
       Post #: 352

RE: Redesigned 28% Extra 300 Build / Que... - 10/11/2006 3:11:14 PM   
rctom



Posts: 5281
Joined: 5/8/2002
From: Flower Mound (near Dallas), TX, USA
Status: offline 		The cowl is 10.25" wide at the F1 former. Farther forward where the plug caps would be it narrows very slightly, it looks like it's about 9.75" to 10" at that point.

The 3w56 is 262mm plug cap to plug cap, which is 10.3" approx. It looks like the left side plug cap will protrude from the cowl a little.

TF

(in reply to dhawks)
       Post #: 353

RE: Redesigned 28% Extra 300 Build / Que... - 10/12/2006 12:37:59 PM   
dhawks


 

Posts: 48
Joined: 3/9/2005
From: , VA,
Status: offline 		Tom,

Thanks for the info, that helps alot. BTW I was fortunate to get a close look at Bill Hempel's plane @ Tripple Tree during the Masters last week. It's a great looking design. I especially like the scale-like hinging. It sure looks like it flies nice too, but then again those guy's could fly the box it came in better than most of us could fly the plane.

Once again, really like what I've seen of your products,

Thanks,
Dennis

(in reply to rctom)
       Post #: 354

RE: Redesigned 28% Extra 300 Build / Que... - 10/14/2006 10:48:58 PM   
Tricktrack


 

Posts: 261
Joined: 11/27/2003
From: Columbus, NE, USA
Status: offline 		Has anyone had any problems with the gear being weak? On my second landing, albeit not perfect, but not terrible either, the gear on the left side twisted and bent backwards.

What are the options for replacement of this gear?

(in reply to dhawks)
       Post #: 355

RE: Redesigned 28% Extra 300 Build / Que... - 10/15/2006 12:29:37 AM   
bluehawkbm


 

Posts: 94
Joined: 8/11/2004
From: Spruce Pine, NC, USA
Status: offline 		I banged mine pretty good on one landing and the gear showed no signs of weakness, never even spread any.

(in reply to Tricktrack)
       Post #: 356

RE: Redesigned 28% Extra 300 Build / Que... - 10/15/2006 3:02:35 AM   
cyoung450


 

Posts: 209
Joined: 1/24/2005
From: Plano, TX, USA
Status: offline 		I have the HD gear and it works very good.

CY

(in reply to bluehawkbm)
       Post #: 357

RE: Redesigned 28% Extra 300 Build / Que... - 10/15/2006 5:50:58 AM   
WW2 Ace



Posts: 280
Joined: 8/31/2005
From: mich, MI, USA
Status: offline
quote:

ORIGINAL: cyoung450

I have the HD gear and it works very good.

CY



What is the "HD gear"?


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"Learn from the mistakes of others, because you won't live long enough to make them all yourself"
WW2 Ace

(in reply to cyoung450)
       Post #: 358

RE: Redesigned 28% Extra 300 Build / Que... - 10/15/2006 6:41:51 AM   
Tired Old Man


 

Posts: 12012
Joined: 2/25/2002
From: Central, CA, USA
Status: offline 		HD gear? Inquiring minds want to know...

Pat,
were you able to try any of those items we talked about?

_____________________________

If you can''t fix it with a hammer, you have an electrical problem.

(in reply to WW2 Ace)
       Post #: 359

RE: Redesigned 28% Extra 300 Build / Que... - 10/15/2006 1:49:58 PM   
mrbigg



Posts: 2981
Joined: 10/30/2004
From: Streator, IL, USA
Status: offline 		Anyone using just one battery for the reciever? I usually use two in case one fails, but I'm thinking of just using one Fromeco 4400 with the regulated reliaswitch that I can pull out of my Ultimate. That way I won't have to order new ones and get any heat from the wife when more packages show up.

_____________________________

PROVERBS 15:22 - Plans go wrong for lack of advice; many counselors bring success.

(in reply to Tired Old Man)
       Post #: 360

RE: Redesigned 28% Extra 300 Build / Que... - 10/15/2006 5:25:23 PM   
rctom



Posts: 5281
Joined: 5/8/2002
From: Flower Mound (near Dallas), TX, USA
Status: offline 		I had some gears made from thicker material for the "landing challenged", they are noticeably heavier though.

I also have some composite gear that work very well, glass filled nylon. They are ugly as anything though.

TF

(in reply to mrbigg)
       Post #: 361

RE: Redesigned 28% Extra 300 Build / Que... - 10/15/2006 6:26:20 PM   
Tired Old Man


 

Posts: 12012
Joined: 2/25/2002
From: Central, CA, USA
Status: offline 		Regarding batteries. I've run only a single 4,400 Lithion on all my stuff under 35% for years without an issue. I'm soon to be setting up my 35% Giles again and will only be using a single battery system this time. As in everything else secure your wiring to prevent stress at the connections and to prevent things from pulling apart.

If you want to save a lot of weight and can balance without issue consider using large 2s Lipolys and regulators for the electrical source. There are a few good sources of 4,000plus 7.4v lipolys now that weren't readily available a year ago. Not cheap, but they are light. Just follow the appropriate safety precautions when using them.

_____________________________

If you can''t fix it with a hammer, you have an electrical problem.

(in reply to mrbigg)
       Post #: 362

RE: Redesigned 28% Extra 300 Build / Que... - 10/15/2006 10:50:35 PM   
mrbigg



Posts: 2981
Joined: 10/30/2004
From: Streator, IL, USA
Status: offline 		you check the CG by measuring from the WINGTIPS right? If that's the way it is, at 3.5" it's still a little nose heavy. I set the rudder servo on the stab over the hole it will go in. Battery is as far back as possible without custom making a tray. I might put the ignition battery with it and run longer leads to the regulator which will still be up front. Think I'll get any glitches by doing this?

_____________________________

PROVERBS 15:22 - Plans go wrong for lack of advice; many counselors bring success.

(in reply to Tired Old Man)
       Post #: 363

RE: Redesigned 28% Extra 300 Build / Que... - 10/16/2006 12:19:58 AM   
WW2 Ace



Posts: 280
Joined: 8/31/2005
From: mich, MI, USA
Status: offline
quote:

ORIGINAL: Silversurfer

HD gear? Inquiring minds want to know...

Pat,
were you able to try any of those items we talked about?


Pat, unfortunately I have not been back out yet. I had the unfortunate landing the last time out and bent the gear pretty bad. Caught the tailwheel in the edge of some tall grass at the end of the runway and it basically yanked the plane out of the air and put a bad twist in the gear. I think it will require a replacement but I haven't decided if I will go with stock or something else. That was one reason I was inquiring about the !QUOT!HD Gear!QUOT!. I haven't herd back what that is or who sells it. I don't know if he was referring to Toms gear or something else.

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"Learn from the mistakes of others, because you won't live long enough to make them all yourself"
WW2 Ace

(in reply to Tired Old Man)
       Post #: 364

RE: Redesigned 28% Extra 300 Build / Que... - 10/16/2006 12:46:43 AM   
Tired Old Man


 

Posts: 12012
Joined: 2/25/2002
From: Central, CA, USA
Status: offline 		I'd stay with the stock gear and just avoid the nasty area stuff. It would have prolly torn the leg off of carbon or glass gear.


For Mr. Bigg,
If you haven't flown the plane at 3-1/2" yet you should give it a try before you make any changes. If it does not then perform to your expectations then try moving the gear. As for glitches, that's something that depends very much on the equipment and the manner it's installed. As in every other installation a few range checks will tell all that's needed to know in that regard. Overall, it should work out fine.

_____________________________

If you can''t fix it with a hammer, you have an electrical problem.

(in reply to WW2 Ace)
       Post #: 365