Go Back  RCU Forums > RC Airplanes > ARF or RTF
Reload this Page >

Phoenix Model Sbach 342 1.20 GP/EP ARF 65.5"

ARF or RTF Discuss ARF (Almost Ready to Fly) radio control airplanes here.

Phoenix Model Sbach 342 1.20 GP/EP ARF 65.5"

Reply

Old 09-02-2017, 02:59 AM
  #126  
mitchesx
 
Join Date: Dec 2007
Location: Norristown, PA
Posts: 4
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default Sbach 342 1.20

The airplane still needs weight even with the Rimfire 1.20. I'm using 6S 4000 packs, and I still need 12-14 oz of weight. Even with a 5000 you're going to need 10-12 oz of weight. It will have plenty of power no matter what. I don't know that it will hover, but it is a great all around sport flying plane. It's a joy to fly. I'm sure it will handle some wind with ease. Expect 6-7 minute flight times with a 5000, I get 5 with the 4000's; which is the biggest disappointment since switching from gas. But, at least, now, it gets flown more. I've doubled or tripled the number of flights I flew with it last year in less than a month. I made few mods to mine, btw. I left the 3/16 bass strip around the lip in the fuse, and I coated the inside with a light coat of finishing epoxy to stiffen and strengthen. It worked really well. Let me know if there's any other info or help I can give you. Simply put: I love mine!

Last edited by mitchesx; 09-02-2017 at 03:03 AM.
mitchesx is offline  
Reply With Quote
Old 09-02-2017, 03:01 AM
  #127  
mitchesx
 
Join Date: Dec 2007
Location: Norristown, PA
Posts: 4
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Oh yeah, prop size etc... I'm flying a 16X8 e prop. A 15X10 might be more efficient. I hadn't tried that yet. As far as watts, that one I have not checked. I'm sure there are calcs out there that will help figure that out.
mitchesx is offline  
Reply With Quote
Old 09-02-2017, 03:57 AM
  #128  
pilotpete2
 
pilotpete2's Avatar
 
Join Date: Oct 2002
Location: Lyndonville, VT
Posts: 3,291
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Many thanks for your response!
I'm gonna pull the trigger as soon as Tower gets them in stock.
This will be my first time going to a 5 or 6S setup, I'm looking at inverter generators, the Ryobi's from Depot look real nice, but will they hold up like a Honda?
I do fly smaller gassers as well, so if the electric conversion disappoints, I can always hang a DLE20ra on it, I think that would haul it around real nice as well.
I'm not a 3D flyer, I don't look for unlimted vertical.
A friend recently got one of the GP Factor 30cc planes and is running 10S 5000mAh with the recommended Rimfire 160. Awsome performance! He can get 10 minutes of mixed aerobatics and still have about 30% remaining with packs barely warm, very impressive!
Best regards,
Pete
pilotpete2 is offline  
Reply With Quote
Old 01-17-2018, 04:06 PM
  #129  
pilotpete2
 
pilotpete2's Avatar
 
Join Date: Oct 2002
Location: Lyndonville, VT
Posts: 3,291
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Bump!
Well, I received my Phoenix SBach today.
Very nice covering and overall construction!
I have run into one issue though. It seems that the wing tube guide through the fuselage is a little tight. The wing tube fits the wing panels, but a tad snug. I can't even force the tube through the fuselage. I tried some coarse sandpaper wrapped around a smaller diameter wing tube, but still no go
I wish could chuck the metal tube up in a lathe and take off the tiniest amount of material. That wing tube is massive and is probably overkill, at least for my flying style.
Anyone else run into a fug snit with the wing tube?
Pete
pilotpete2 is offline  
Reply With Quote
Old 01-18-2018, 04:11 AM
  #130  
watdazit
 
Join Date: Oct 2013
Location: Braidwood Australia
Posts: 12
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default A bit porky

To balance my new Sbach it needed 900 grams (2 lbs) of lead up front with a DLE 20RA engine. This is not good as the engine not only has to haul the plane around but that extra lead as well. I am going to try an RCGF 21cc twin. It weighs more than the DLE and that extra weight is further forward so I should be able to take off some of that 900g of lead. I am not very happy as this plane is supposed to be an aerobatic plane. The DLE20 is supposed to put out 2.5hp and the RCGF 2.8hp so I might have the advantage of a little bit more power to haul the weight. Time will tell. I am just waiting for the twin to be delivered.
watdazit is offline  
Reply With Quote
Old 02-02-2018, 01:55 PM
  #131  
watdazit
 
Join Date: Oct 2013
Location: Braidwood Australia
Posts: 12
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default A bit porky

I have fitted the RCGF 21 twin and have been able to reduce the amount of lead from 900g to 540g. The cowl fits withou having to cut holes for the plugs which is good. 540g is still a lot of lead for a 65" plane but I suppose the next test is to fly it and see.
Attached Thumbnails Click image for larger version

Name:	RCGF 21 a.JPG
Views:	60
Size:	579.0 KB
ID:	2253118   Click image for larger version

Name:	RCGF 21 b.JPG
Views:	60
Size:	573.0 KB
ID:	2253119  

Last edited by watdazit; 02-02-2018 at 11:04 PM.
watdazit is offline  
Reply With Quote
Old 03-29-2018, 11:57 AM
  #132  
pilotpete2
 
pilotpete2's Avatar
 
Join Date: Oct 2002
Location: Lyndonville, VT
Posts: 3,291
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Quick question regarding measuring the CG location on the SBach.
When I looked at the manual, it gives the CG at 4.5" or 115mm from the leading edge. The drawing in the manual seems to indicate that the 4.5" is not measured at the fuselage, or wing root, but doesn't specify how far out from the fuselage. Just wondering where others were measuring the CG from.
Thanks,
Pete
pilotpete2 is offline  
Reply With Quote
Old 02-20-2019, 02:10 PM
  #133  
jeffharris75
 
jeffharris75's Avatar
 
Join Date: Jun 2006
Location: RALEIGH, NC
Posts: 54
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

WATDAZIT
hi will you please describe your aluminum gear mod? I am building this kit now.

Last edited by jeffharris75; 02-20-2019 at 02:16 PM.
jeffharris75 is offline  
Reply With Quote
Old 02-20-2019, 02:14 PM
  #134  
jeffharris75
 
jeffharris75's Avatar
 
Join Date: Jun 2006
Location: RALEIGH, NC
Posts: 54
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Hi, I am building this kit now. Where did you get the moor mount for the twin? Have you finished the kit yet?
jeffharris75 is offline  
Reply With Quote
Old 03-16-2019, 11:59 PM
  #135  
watdazit
 
Join Date: Oct 2013
Location: Braidwood Australia
Posts: 12
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Originally Posted by jeffharris75 View Post
WATDAZIT
hi will you please describe your aluminum gear mod? I am building this kit now.
Sorry about the delay in replying. I am not sure of what you are asking here.
Originally Posted by jeffharris75 View Post
Hi, I am building this kit now. Where did you get the moor mount for the twin? Have you finished the kit yet?

I suppose you mean the standoffs. I just have a box of engine mounts and standoffs so I am not sure where they come from. They might have even been in the RCGF box. Most hobby shops and web suppliers stock them. I have even bought a few from Hobbyking.

A comment about the engine. It's great. I did have a problem fitting the spinner as the threaded prop shaft is a bit short to get the prop nut on and the spinner bolt nut. I had a friend make me up a custom prop nut which is threaded on the end for the spinner bolt. The engine starts first time, everytime and except for leaning the mixture a fraction I have not touched it. I do not thrash my planes around the sky and this engine develops all the power I need to do aerobatics. I am not really a 3D capable pilot but it will pull out of a hover, but the thing which holds it back is the weight of the plane overall. The SBach is too heavy. Because I am carrying so much extra lead weight up front I have even considered going for the 30cc twin. It should fit, if somewhat tight, as the plugs are in a different position. Because it is so heavy any landing which is not perfect can flatten the undercarraige a little. I looked around for some CF legs and bought some off HobbyKing's web site. It is one piece so I will have to cut it. No big deal, just have to get around to it.
watdazit is offline  
Reply With Quote
Old 03-17-2019, 03:09 PM
  #136  
jeffharris75
 
jeffharris75's Avatar
 
Join Date: Jun 2006
Location: RALEIGH, NC
Posts: 54
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default

Thanks, I have installed the DLE 20. Appreciate the advice on landing!
jeffharris75 is offline  
Reply With Quote

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service