Go Back  RCU Forums > RC Airplanes > "1/2 A" & "1/8 A" airplanes
 AIRPLANE FOR 30 4 STROKE ? >

AIRPLANE FOR 30 4 STROKE ?

Community
Search
Notices
"1/2 A" & "1/8 A" airplanes These are the small ones...more popular now than ever.

AIRPLANE FOR 30 4 STROKE ?

Thread Tools
 
Search this Thread
 
Old 05-05-2010 | 06:09 PM
  #1  
FHD
Thread Starter
Senior Member
 
Joined: Jan 2003
Posts: 165
Likes: 0
Received 0 Likes on 0 Posts
From: WINNIPEG, MB, CANADA
Default AIRPLANE FOR 30 4 STROKE ?

HOWDY

I am looking for home for my OS 30 4 stroke.
It could be a kit or an arf.
Any idea,s
Thanks.
Frank
Old 05-05-2010 | 06:45 PM
  #2  
Senior Member
My Feedback: (12)
 
Joined: Feb 2004
Posts: 394
Likes: 0
Received 0 Likes on 0 Posts
From: Superior, MT
Default RE: AIRPLANE FOR 30 4 STROKE ?

A few weks ago, a RCU member announced that SIG was releasing a scaled down 4*. Couple of us felt that this might make a nice home for our .30 size 4-strokes. ........ I've had a LAZY TIGER, with a Saito .30 in it, since I've first got started in this hobby (4 or 5 years ago). Very robust plane & has taken a lot of abuse. The 4 LB dry weight doesn't allow for a lot of verticle, but it can do fair size (not LARGE) consecutive loops, rolls, & cuban eights (when I don't screw up). Not exciting, but just a good stable "LAZY" flyer. .......... A lot depends on what kind of performance you're looking for. ................... George K.
Old 05-05-2010 | 08:25 PM
  #3  
My Feedback: (1)
 
Joined: Jan 2002
Posts: 1,293
Likes: 0
Received 1 Like on 1 Post
From: Crystal, MN
Default RE: AIRPLANE FOR 30 4 STROKE ?

Sadly, the Slo Poke has been discontinued, but you could find one around I'm sure.
http://www3.towerhobbies.com/cgi-bin...?&I=LXLP42&P=7
It needs a bunch of nose weight anyway. "Please also note that depending upon your engine selection the model may require some noseweight. Do not be concerned about any nose weight additions required up to 8 oz. This model has a HUGE wing and a light wingloading and such additions are not critical to its flight performance."
I have one I bought all built up and I just recently
bought a used HP VT 21 that's going to go on it.
Also, the Cub .20 kit would be good:
http://www.greatplanes.com/airplanes/gpma0160.html
Ah, but does the world really need another R/C J3 Cub?
And, just discovered, IT'S ALSO DISCONTINUED.......Grrr, glad I got one.....
That leaves the Taylorcraft:
http://www3.towerhobbies.com/cgi-bin...?&I=LXUJ25&P=0
Dave
Attached Thumbnails Click image for larger version

Name:	Qo38915.jpg
Views:	98
Size:	8.3 KB
ID:	1431454  
Old 05-05-2010 | 09:18 PM
  #4  
ProBroJoe's Avatar
Senior Member
 
Joined: Sep 2004
Posts: 981
Likes: 0
Received 0 Likes on 0 Posts
From: Annapolis, MD
Default RE: AIRPLANE FOR 30 4 STROKE ?

The .30 size four strokes are such an odd-ball size - they don't quite have the umph to fly .25 size models spiritedly, and their a bit overweight for .15 planes.... (Maybe an electric to glow conversion of some sort?) That's a tough one, I know, I have three of the lil boogers!

Do let us know what you come up with, OK?
Old 05-05-2010 | 09:32 PM
  #5  
combatpigg's Avatar
Senior Member
My Feedback: (3)
 
Joined: Nov 2003
Posts: 20,448
Received 44 Likes on 40 Posts
From: arlington, WA
Default RE: AIRPLANE FOR 30 4 STROKE ?

I hear they really like the nitro. There must be a really lightly built airframe marketed for electric power that one of these engines could haul around with a little gusto?
Old 05-05-2010 | 09:56 PM
  #6  
Senior Member
My Feedback: (1)
 
Joined: Sep 2003
Posts: 521
Likes: 0
Received 0 Likes on 0 Posts
From: Mission, TX
Default RE: AIRPLANE FOR 30 4 STROKE ?

I am in the process of scratching out a mid-wing
similar to a Hots with 360 sq. in. It will weigh three
pounds, give or take a few ounces. It would be a
rocket with a good .25 but it gets the little Saito.
I'll post a photo in a couple of days, give or take
a few ounces.
Ralph
Old 05-06-2010 | 08:44 AM
  #7  
Senior Member
 
Joined: May 2004
Posts: 100
Likes: 0
Received 0 Likes on 0 Posts
From: Kalamazoo, MI
Default RE: AIRPLANE FOR 30 4 STROKE ?

Bucker Jungmeister BU-133 by Gordon E. Whitehead 40.5 In WS RCM plan 856.

I second the new SIG 4-Star 20ish too: not for using that plastic cowl, build it up!
Old 05-06-2010 | 09:07 AM
  #8  
 
Joined: Jan 2003
Posts: 3,286
Likes: 0
Received 5 Likes on 5 Posts
From: Ithaca, NY
Default RE: AIRPLANE FOR 30 4 STROKE ?

TONS of choices if you scratch build. All those great old designs from RCM, etc. originally intended for .19s. Radio gear is much lighter now, and little 4 strokes will pull them just fine. A Saito 30 is about 1 ounce heavier than an old 19 with its muffler. No problem. Miss Bikini, New Era III (RCM), Titewad (FM), and yes, those wonderful Gordon Whitehead scale models; many, many others.

Jim
Old 05-06-2010 | 09:26 AM
  #9  
 
Joined: Sep 2003
Posts: 276
Received 2 Likes on 2 Posts
From: Puerto San Martin, ARGENTINA
Default RE: AIRPLANE FOR 30 4 STROKE ?

Extra 3.25 ?

Look at this one

[youtube]http://www.youtube.com/watch?v=i1baLnie3pM[/youtube]

Regards

Claudio

EDIT: I think this guy likes cars better than planes
Old 05-06-2010 | 11:21 AM
  #10  
My Feedback: (1)
 
Joined: Jan 2002
Posts: 1,293
Likes: 0
Received 1 Like on 1 Post
From: Crystal, MN
Default RE: AIRPLANE FOR 30 4 STROKE ?

My ARF choice of the moment would be the E-Flite Pawnee
http://www.e-fliterc.com/Products/De...ProdID=EFL2650
I like the Ag planes! They make several others that could do.
Dave
Old 05-06-2010 | 12:39 PM
  #11  
jeffie8696's Avatar
Senior Member
 
Joined: May 2007
Posts: 5,299
Likes: 0
Received 2 Likes on 2 Posts
From: Muscatine, IA
Default RE: AIRPLANE FOR 30 4 STROKE ?

Have to go with the new 4 star .20.
A .30 4 stroke should replace a .20 size engine right? I know the new 4 star is being flown at Sig with an Enya .19 and the airframe looks big enough to handle a 4 stroke .30 . Iwill check with Bob.
Have to agree with the high nitro in the little .30, I had one in my hands for a while (Magnum .30) and it sucked on anything less than 30% nitro.
Old 05-06-2010 | 01:10 PM
  #12  
 
Joined: Jul 2006
Posts: 927
Likes: 0
Received 0 Likes on 0 Posts
From: townsend, GA
Default RE: AIRPLANE FOR 30 4 STROKE ?

You could track down a Birdie 10 kitted by global. I think AMA has plans for it???
Old 05-06-2010 | 01:19 PM
  #13  
davidgeorge212's Avatar
 
Joined: Dec 2006
Posts: 1,561
Likes: 0
Received 0 Likes on 0 Posts
From: Trussville, AL
Default RE: AIRPLANE FOR 30 4 STROKE ?

if you want to plan build, Bipe Flyer has a thread with some plans he made of a Pitts S2S specifically for a 30 four stroke.

http://www.rcuniverse.com/forum/m_3382269/tm.htm

I am currently building one right now becaue I too have a saito 30 four stroke that needs a plane.
Old 05-06-2010 | 06:10 PM
  #14  
jeffie8696's Avatar
Senior Member
 
Joined: May 2007
Posts: 5,299
Likes: 0
Received 2 Likes on 2 Posts
From: Muscatine, IA
Default RE: AIRPLANE FOR 30 4 STROKE ?

Just spoke with the Bob at Sig. He says the new 4 Star is a "builders airplane" and if you want to build it with the nose cheeks is is easy peasy.
And he felt the power of the Mag .30 or similar would be just about right. You might have to move the battery back a little for balance but it should handle it fine.
Old 05-06-2010 | 06:18 PM
  #15  
My Feedback: (314)
 
Joined: Feb 2002
Posts: 1,099
Likes: 0
Received 1 Like on 1 Post
From: Keyport, NJ
Default RE: AIRPLANE FOR 30 4 STROKE ?

I had a Cub with the OS .30. It was quick and surprised many at the field. World Models used to have small Cubs in this size. That was what mine was. Loved the OS .30. It was an inverted installation and it started up every time without having to invert the airplane.
Old 05-06-2010 | 06:30 PM
  #16  
Senior Member
 
Joined: Nov 2007
Posts: 303
Likes: 0
Received 0 Likes on 0 Posts
From: Wichita, KS
Default RE: AIRPLANE FOR 30 4 STROKE ?

Happyfly....You can then be "happy".
Steve
Old 05-06-2010 | 10:01 PM
  #17  
Senior Member
 
Joined: Feb 2007
Posts: 1,781
Likes: 0
Received 1 Like on 1 Post
From: , MI
Default RE: AIRPLANE FOR 30 4 STROKE ?



My dad did this (Eflight Pawnee) with a .26 Surpass, and the motor couldn't have pulled the skim off of warm milk in this airplane. It's a really large airframe, has a Supertiger .40 on it now.
Old 05-06-2010 | 11:29 PM
  #18  
SGC
Senior Member
 
Joined: Dec 2004
Posts: 1,334
Likes: 0
Received 0 Likes on 0 Posts
From: OAKEYQueensland, AUSTRALIA
Default RE: AIRPLANE FOR 30 4 STROKE ?

How about a R.C.M Rumplestadt , thread n plans here:- http://www.rcuniverse.com/forum/m_8922771/tm.htm
Old 05-07-2010 | 01:25 AM
  #19  
My Feedback: (66)
 
Joined: Jan 2004
Posts: 4,191
Likes: 0
Received 6 Likes on 6 Posts
From: fairfield, CA
Default RE: AIRPLANE FOR 30 4 STROKE ?

why not go with the GP 1/12 combat planes. i flew my spitfire on the OS 30 and the Saito 40. flew very scale like. a 9x7 on the OS and a 10x7 on the saito. I latter did some mods to the OS 30 with the car version cam, springs and carb. and would turn a 8x6 APC at 16,000 very close to the OS 25ax
Old 05-07-2010 | 03:52 AM
  #20  
Senior Member
 
Joined: Aug 2006
Posts: 238
Likes: 0
Received 1 Like on 1 Post
From: Brisbane, Queensland, AUSTRALIA
Default RE: AIRPLANE FOR 30 4 STROKE ?

A Saito .30 is easily the equal of a classic era .35 - turns a 10x6 at similar RPM to an OS 35S or Fox .35, and with muffler comes in at a similar weight.

For C/L, I'd consider putting a Saito 30 in something like a Twister or Ringmaster, and people have successfully flown Noblers with them too ...

Don't underestimate what that wonderful little four stroke can do.

In terms of more modern engines, consider the Saito to be an equivalent to an OS FP 20 or 25 ... same mount pattern as well (also same mount as the Enya SS25/30/35).
Old 05-09-2010 | 10:24 PM
  #21  
Member
 
Joined: Dec 2005
Posts: 99
Likes: 0
Received 1 Like on 1 Post
From: CampinasSao Paulo, BRAZIL
Default RE: AIRPLANE FOR 30 4 STROKE ?

I was thinking to put a Saito 30 on Eflite Mini Ultra Stick, just wondering if the engine is to heavy for it.

Martin
Old 05-10-2010 | 01:19 AM
  #22  
longdan's Avatar
 
Joined: Oct 2006
Posts: 833
Likes: 0
Received 0 Likes on 0 Posts
From: Auckland, NEW ZEALAND
Default RE: AIRPLANE FOR 30 4 STROKE ?

I was in the same situation a few years back when I bought a HP VT.25 4 stroke. Couldn't find an airframe for it.
I ended up scratch building a 70s era high wing trainer intended for a .19-25 2 stroke.
The 4 stroke flew it beautifully. It was great for putting round the sky on a Sunday afternoon.
Old 05-14-2010 | 06:24 PM
  #23  
Senior Member
My Feedback: (1)
 
Joined: Sep 2003
Posts: 521
Likes: 0
Received 0 Likes on 0 Posts
From: Mission, TX
Default RE: AIRPLANE FOR 30 4 STROKE ?

45 inch wing, 395 sq. in. weighs 41 ounces. Saito .30
with four HS 81 servos and an HS 85 on elevator. It
is one piece with all servos mounted in the wing and
a hatch on the belly. Maiden will be tomorrow.
Ralph
Old 05-14-2010 | 06:27 PM
  #24  
Senior Member
My Feedback: (1)
 
Joined: Sep 2003
Posts: 521
Likes: 0
Received 0 Likes on 0 Posts
From: Mission, TX
Default RE: AIRPLANE FOR 30 4 STROKE ?

I forgot the photo
Old 05-14-2010 | 06:36 PM
  #25  
Senior Member
My Feedback: (1)
 
Joined: Sep 2003
Posts: 521
Likes: 0
Received 0 Likes on 0 Posts
From: Mission, TX
Default RE: AIRPLANE FOR 30 4 STROKE ?

Two in a row, maybe this one will work.
Attached Thumbnails Click image for larger version

Name:	Om32945.jpg
Views:	137
Size:	143.3 KB
ID:	1436103   Click image for larger version

Name:	Nj25403.jpg
Views:	135
Size:	143.3 KB
ID:	1436104  


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.