Ziroli 70" P-47 - Gas or Glow??  
View related threads: (in this forum | in all forums)

Tower Hobbies
Enter up to 4 keywords or Tower stock numbers
Logged in as Guest



Users viewing this topic: none
  Printable Version
       

All Forums >> RC Airplanes >> RC Warbirds and Warplanes >> Ziroli 70" P-47 - Gas or Glow??
Page: [1]

Login
Message << Older Topic   Newer Topic >>
Ziroli 70" P-47 - Gas or Glow?? - 11/22/2002 9:06:24 PM   
JHuisman


 

Posts: 47
Joined: 3/22/2002
From: Calgary, AB, CANADA
Status: offline 		I'll be building this aircraft over the winter, and have some questions as to the suggested powerplant.

Ziroli recommends a Zenoah G-38: 71oz, and approx 16lbs of thrust on an 18x10 at the RPM listed on their website.

Others have used a Saito 180: 31oz, and the same thrust out of a 16x8.

Gas has it's advantages, cheap fuel, no mess, and the engine is actually cheaper to purchase. But is the weight penalty worth it on this aircraft?
Do flyers using the Saito have to add significant nose weight?

Please post recommendations for the best engne choice.

Thanks

_____________________________

Jason Huisman
Calgary, Alberta, Canada
       Post #: 1

Ziroli 70" P-47 - Gas or Glow?? - 11/22/2002 10:03:52 PM   
M Gill


 

Posts: 413
Joined: 6/5/2002
From: Martinsville, NJ, USA
Status: offline 		Jason,

Apart from the fuel and the engine being cheaper, gas engines tend to be more reliable. The jug is a great flyer (model and real life) I don't think the weight will be a problem at all (especially if you are a light builder).

Also, you got it straight from the horse's mouth, if Nick says the G-38 is the way to go, I would give him the benefit of the doubt.

Mace Gill
The Aeroplane Works
http://www.theaeroplaneworks.com

(in reply to JHuisman)
       Post #: 2

Ziroli 70" P-47 - Gas or Glow?? - 11/22/2002 10:12:11 PM   
k_sonn



Posts: 1134
Joined: 2/15/2002
From: Bellevue, WA, USA
Status: offline 		Although I have not built the Ziroli 70" P-47, I have built the Top Flite P-47 and the Yellow Aircraft P-47. Both required nose weight. On the TF P-47 I used an OS 120 and had to add one and a half pounds on nose weight. On the YA P-47 a G-38 is the recommended engine. I used a G-62. No nose weight was needed for by using the G-62 but had I used a lighter engine nose weight would have been required. If you want to use a gas engine but concerned about the weight, take a look at the engines sold by [URL=http://www.rcshowcase.com/]RC Show Case[/URL]. The 1.8 should work nicely in the 70" Ziroli.

By the way, if you plan on purchasing a cut kit from a kit cutter, I highly recommend The Aeroplane Works.

< Message edited by k_sonn -- Nov 22 2002 5:24PM >

(in reply to JHuisman)
       Post #: 3

Ziroli 70" P-47 - Gas or Glow?? - 11/22/2002 10:16:46 PM   
M Gill


 

Posts: 413
Joined: 6/5/2002
From: Martinsville, NJ, USA
Status: offline 		Thanks Kirk,

You are alright in my book.

Send me some pics of any planes you've built from my kits. I would appreciate it.

Mace Gill
The Aeroplane Works

(in reply to JHuisman)
       Post #: 4

Ziroli 70" P-47 - Gas or Glow?? - 11/22/2002 10:20:34 PM   
JHuisman


 

Posts: 47
Joined: 3/22/2002
From: Calgary, AB, CANADA
Status: offline 		"Also, you got it straight from the horse's mouth, if Nick says the G-38 is the way to go, I would give him the benefit of the doubt. "

That was my initial thought as well.
The man who designed it knows what he's talking about.

Since the plans were drawn in 1990, and most of the large 4 strokers were not available then, I had thought that perhaps there was a more suitable powerplant. But a Saito 180 sucking down 2oz of glow fuel per minute would get expensive in a hurry.

Thanks

_____________________________

Jason Huisman
Calgary, Alberta, Canada

(in reply to JHuisman)
       Post #: 5

Ziroli 70" P-47 - Gas or Glow?? - 11/23/2002 4:02:47 AM   
Chad Veich



Posts: 2810
Joined: 12/13/2001
From: Litchfield Park, AZ, USA
Status: offline 		I'm building one right now that will have an OS 1.60 up front. The customer I'm building it for also has one that he was flying on a Webra 1.2. I plan to do one for myself and I was really considering the G-38. Plenty of room in the cowl and nose weight is usually necessary anyway. Even if you are a "light" builder this one will probably be a bit heavier than usual simply because it is quite substantially overbuilt in my opinion. No problem as the Jug has a decent amount of area and warbirds are not supposed to float. Just make sure you get enough motor up front to handle the weight. By the way, my plans show a G-23 rather than a G-38. Do I have an older plan set per chance? The airplane has been a joy to build and is turning out quite nicely. Good luck with yours.

PS- Mace, I'm pretty sure this was one of your kits. I'll send some pics when it is done.

PPS-JHuisman, I'm currently working on some vac formed accessories to include the supercharger waste gates, the louvers just ahead of the exhausts, and some bomb pylons. If you're interested drop me a note at [email]cvnkv@aol.com[/email].

Attachments
Click to see fullsize image.
Click for fullsize

(in reply to JHuisman)
       Post #: 6

Ziroli 70" P-47 - Gas or Glow?? - 11/25/2002 12:09:57 AM   
JHuisman


 

Posts: 47
Joined: 3/22/2002
From: Calgary, AB, CANADA
Status: offline 		Chad,

Due to a mis-shipment, I've not yet received my fuse plans, but am basing the G-38 recommendation from the Ziroli website's listing of items available for this aircraft. I like to power aircraft at the top end of the rec. range as well, and while a G-23 would fly it, the -38 should be spectacular!!

_____________________________

Jason Huisman
Calgary, Alberta, Canada

(in reply to JHuisman)
       Post #: 7

Ziroli 70" P-47 - Gas or Glow?? - 11/30/2002 5:50:35 AM   
kirtley-delete


 

Posts: 67
Joined: 1/8/2002
From: FL
Status: offline 		I am building the 70" Ziroli P-47 and I am using the G-38. I have it primed and base color on the wing. I have glassed the P-47 and spraying the aircraft with latex. I am using Robart Retracts and flaps are on one servo, but used one servo for each wing.

Ed

(in reply to JHuisman)
       Post #: 8

Ziroli 70" P-47 - Gas or Glow?? - 11/30/2002 5:53:10 AM   
kirtley-delete


 

Posts: 67
Joined: 1/8/2002
From: FL
Status: offline 		Correction to last post, it should read that I am using one servo for flaps and one servo for the left aileron and one servo for the right aileron.
Ed

(in reply to JHuisman)
       Post #: 9

Page:   [1]
All Forums >> RC Airplanes >> RC Warbirds and Warplanes >> Ziroli 70" P-47 - Gas or Glow??
Page: [1]





Jump to:


Google 



Search | Marketplace | Event Calendar | Local Clubs | Magazine | Product Ratings | New Products | Discussion Forums

Photo Gallery | Member Video Posts | RCU Video Gallery | Instructor Search | Field|Track|Marina Search

Advertisers | Hobby Vendor Resources | Rate Manufacturers | Sign In/Sign Up

SITE MAP!   : :   FORUM RULES

© 2001 - 2007 24-7 RC, LLC, all rights reserved.

Charities we support that also need your help
Yorkie Rescue | Humane Society | ASPCA | Crohn's-Colitis America

Kaango.com Classifieds

0.625RCU1