RE: New 81" P-47 ARF coming from Hangar 9  
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RE: New 81" P-47 ARF coming from Ha... - 2/3/2006 10:55:38 PM   
tailskid



Posts: 5528
Joined: 11/30/2001
From: Tolleson, AZ, USA
Status: offline 		And his answer is.......

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RE: New 81" P-47 ARF coming from Ha... - 2/3/2006 10:55:57 PM   
lownloud


 

Posts: 272
Joined: 11/3/2003
From: surf city, CA, USA
Status: offline 		after all the months of waiting for a real release date, I am still a buyer for this aircraft. I think the Moki 2.1 will fly it the best with weight/power in mind. I would never put a 5 bhp motor in it (gas or glow) without glassing/glueing the snot out of the firewall first.

if you are expecting the manufacturer to give you the green light to hot rod this plane..... forget it. Power it with what you want but dont spend any more time infront of the motor when its running than you have to. Im not joking either. Big moki's and gassers will take your whole hand off. If you over power this plane, like any other, the firewall will one day fail.

Over power, cut the spar to put bigger wheels on it, cut the rear wheel housing to put in retracts, etc.... yikes. I doubt the asian kids building this plane are exactly over building it to begin with.

< Message edited by lownloud -- 2/3/2006 11:00:56 PM >

(in reply to johnnylwhite)
       Post #: 402

RE: New 81" P-47 ARF coming from Ha... - 2/3/2006 11:56:06 PM   
Countryboy



Posts: 1524
Joined: 12/17/2001
From: Lawrenceburg, KY, USA
Status: offline
quote:

ORIGINAL: lownloud
Cut the spar to put bigger wheels on it, cut the rear wheel housing to put in retracts, etc.... yikes. I doubt the asian kids building this plane are exactly over building it to begin with.


Without actually seeing the ARF construction, and judging by what Mike deems to be the small wheel issue, I don't believe there is going to be much one can do to retro larger wheel's. I don't see a way to crank a plug in wing tube like you could a wood spar if it were an interference issue.

Notice in the borrowed pic attached, the red arrow which appears to be the wing tube socket and the blue arrows... the wing anti-rotation pin holes. If you imagine those where they would be located in the wing, you can see there is not going to be much room to work with in installing larger wheels.

Attachments
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(in reply to lownloud)
       Post #: 403

RE: New 81" P-47 ARF coming from H... - 2/4/2006 1:11:15 AM   
SpitfireMKI



Posts: 1463
Joined: 7/6/2002
From: RAF Turnhouse 603 Squadron, MD, USA
Status: offline 		Without going into great detail we have abused several 60 sized H9's at our field with larger than advised engines without firewall mods and never had a failure. Full throttle everything was the rule and we obeyed.

I would find it real hard to believe a G-38 would hurt this plane, in fact a G-45 should be fine. As long as they are installed properly, all bolts cleaned and locktighted and props balanced correctly. The amount of unbalanced props in my club is staggering. And as usual, the plane is not abused with full throttle diving runs and hard turns. At 81" it's not much smaller than a TF Mustang yet they put 3W 70's on them without any trouble, a 3W70 will fly a 60 lb airplane with ease.

I flew the H9 Cessna as a UAV trainer with a G45, 32 ounces of gas and 10 lbs of dead weight for a total of 30lbs for a year (at least 300 t/o's and landings) and only had a problem with the firewall when I had a deadstick "in the rough" and the nose gear pulled out a chunk of firewall. The plane is still alive though semi retired due to lack of interest.

These ARF failures are very often traced back to improper installation either by the builder's lack of attention to detail or a result of the instructions not providing enough information to a newbie assembler. I'm not going to say that H9 lives in a perfect world but they sure do a good job in the world of ARFs.

I'll bet the P-47 will go through its share of abuse here on RCU once it's available, that's just the way it goes. I have asked this question before and I'll do it again:

"How many times do you read on RCU about a kit builder bashing the crap out of himself for the lousy job of building he did ?"

It is always easier to blame the manufactuer.

Hang in there lads ! The planes are comin' !

Hey Topflite ! Where's your Giant P-47 Bubbletop ARF ?!?!?!?!?!?!?!?!

S1

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RE: New 81" P-47 ARF coming from H... - 2/4/2006 1:22:58 AM   
Flanker



Posts: 355
Joined: 1/26/2002
From: Mahomet, IL, USA
Status: offline 		And don't forget, several pages back Mike said he was going to build one for personal use with an Evolution 35!!

(in reply to SpitfireMKI)
       Post #: 405

RE: New 81" P-47 ARF coming from H... - 2/4/2006 1:52:05 AM   
SpitfireMKI



Posts: 1463
Joined: 7/6/2002
From: RAF Turnhouse 603 Squadron, MD, USA
Status: offline 		Man that's bad news, the EVO35 only having the power of a G26

HEHEHEHEHEHEHEHEHEHEHE !

More like a G45

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       Post #: 406

RE: New 81" P-47 ARF coming from H... - 2/4/2006 4:28:17 AM   
thevirginian


 

Posts: 1397
Joined: 4/13/2004
From: chesapeake, VA, USA
Status: offline 		I'm going to put my G-38 in the Jug, period. I know what to do and how to strenghten the fire wall and motor box since I am a gasser addict. I look at the frame work and will tell you whether the design is strong enough or needs extra work done to it. Besides Hangar 9 builds very good ARFs and will not compromise quality. I believe that's one reason why this plane is so late. They had quality issues.

(in reply to SpitfireMKI)
       Post #: 407

RE: New 81" P-47 ARF coming from Ha... - 2/4/2006 7:57:14 AM   
cadconversions



Posts: 1153
Joined: 1/20/2004
From: Scottsville, KY, USA
Status: offline 		Please don't fry me for asking... Why go G-38 (other than the price point) when you can get a roto 35vi, MVVS 26/35, etc... that provides more power, less weight but still enough to balance the plane? Also, I've been told that Ralph's converted G-26 will outperform the G-38's easily. Just a thought for those that like the zenoah motors. BTW, I think they're good motors too. Just asking. Flame suit on if needed.

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(in reply to johnnylwhite)
       Post #: 408

RE: New 81" P-47 ARF coming from H... - 2/4/2006 1:06:40 PM   
go vertical


 

Posts: 338
Joined: 1/20/2003
From: mt.pleasant, PA, USA
Status: offline 		I plan on useing a 2.4 brison i had this engine in a flair yak 55 it had a 80" wing span it weighed 15# it was not over powered

(in reply to cadconversions)
       Post #: 409

RE: New 81" P-47 ARF coming from Ha... - 2/4/2006 7:22:17 PM   
thevirginian


 

Posts: 1397
Joined: 4/13/2004
From: chesapeake, VA, USA
Status: offline 		I have a homeless G-38 NIB for two years now. I got to do something with this motor. When I saw this P-47 I was hooked. It was my favorite plane in my Jane's WWII-Fighters sim and if it flies as good as it looks I'll be happy. I know how well the G-38 hauls other, similar planes around. So I really believe it is a good engine foe this model. I definately would not buy a G-26 for it.

(in reply to cadconversions)
       Post #: 410

RE: New 81" P-47 ARF coming from Ha... - 2/5/2006 2:24:17 AM   
mirwin


 

Posts: 677
Joined: 12/21/2004
From: Purcellville, VA, USA
Status: offline 		I like the Z's too and the G38 should pull it along smartly. I wonder if it will fit in the cowl without having to do a lot of cutting? Haven't seen the plane yet, so I don't know. But if the G38 fits, that's what I'll go with.


Mike

(in reply to thevirginian)
       Post #: 411

RE: New 81" P-47 ARF coming from Ha... - 2/5/2006 2:26:22 PM   
samparfitt


 

Posts: 1873
Joined: 9/1/2002
From: West Chester, OH, USA
Status: offline 		Mike,
With a radial cowl, it would seem that the G-38 would fit with no problems.,
The only problem is firewall to prop distance since the exhaust is to the rear,
the firewall may need some mods.
My G-38 came with an extra thinner 'spacer' for the carb mount.
I put the thinner 'carb spacer' on my G-38 and the carb is a lot closer to the engine.

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       Post #: 412

RE: New 81" P-47 ARF coming from H... - 2/5/2006 4:41:45 PM   
SpitfireMKI



Posts: 1463
Joined: 7/6/2002
From: RAF Turnhouse 603 Squadron, MD, USA
Status: offline 		The "thinner" spacer requires the bellcrank throttle setup, with all the cracking of the larger black/brown composite spacers, I would use the "thinner" nylon one regardless.

S1

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All failure, We learn from.... Discovery"

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