Notices
Tachometer Readings Post your tachometer readings for your motor in here or ask others what they are getting out of their motor/prop combos!

Saito 72 rpm

Old 04-19-2005, 08:31 AM
  #1  
TD1
Senior Member
Thread Starter
 
Join Date: Sep 2002
Location: Luanda, ANGOLA
Posts: 293
Likes: 0
Received 0 Likes on 0 Posts
Default Saito 72 rpm

running on 15% nitro swings a APC 14x4w @ 10300 rpm thats my needle setting for flying not peak rpm.
I would like to know what sort of rpm are you guys making with the same combo!
Old 04-19-2005, 10:29 AM
  #2  
seanychen
Senior Member
My Feedback: (4)
 
seanychen's Avatar
 
Join Date: Jul 2002
Location: Canton, MI
Posts: 2,914
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Saito 72 rpm

I got at most 10000 w/ 15% nitro fuel.

My Saito 82 will get 10300 on 15% nitro on APC 14x4W
Old 04-19-2005, 06:19 PM
  #3  
TD1
Senior Member
Thread Starter
 
Join Date: Sep 2002
Location: Luanda, ANGOLA
Posts: 293
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Saito 72 rpm

How many gallons of fuel do you have on your motor?
Old 04-19-2005, 06:21 PM
  #4  
TD1
Senior Member
Thread Starter
 
Join Date: Sep 2002
Location: Luanda, ANGOLA
Posts: 293
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Saito 72 rpm

I meant on the .72 and on the .82
Old 04-20-2005, 12:31 AM
  #5  
seanychen
Senior Member
My Feedback: (4)
 
seanychen's Avatar
 
Join Date: Jul 2002
Location: Canton, MI
Posts: 2,914
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Saito 72 rpm

I had the 72 through quite a few gallons, and peak power has been consistent on 15% nitro:

APC 13x4W @ 11000
APC 13x6 @ 10500
APC 14x4W @ 9800
Old 04-20-2005, 10:33 AM
  #6  
tIANci
Senior Member
 
tIANci's Avatar
 
Join Date: Jan 2004
Location: Kuala Lumpur, MALAYSIA
Posts: 10,489
Likes: 0
Received 2 Likes on 2 Posts
Default RE: Saito 72 rpm

Can the 72 or the 82 throw a 15x4W? Thanks!
Old 04-20-2005, 04:09 PM
  #7  
TD1
Senior Member
Thread Starter
 
Join Date: Sep 2002
Location: Luanda, ANGOLA
Posts: 293
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Saito 72 rpm

Although I have a 15x4w on hand, I have never tried it on the .72 and I believe it will be way to much prop, maybe for same scale application with 30% nitro
Old 04-20-2005, 04:14 PM
  #8  
TD1
Senior Member
Thread Starter
 
Join Date: Sep 2002
Location: Luanda, ANGOLA
Posts: 293
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Saito 72 rpm

The reason I was asking is, that my saito just got stronger after 2 gallons of fuel.

Cheers
Old 04-20-2005, 09:55 PM
  #9  
seanychen
Senior Member
My Feedback: (4)
 
seanychen's Avatar
 
Join Date: Jul 2002
Location: Canton, MI
Posts: 2,914
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Saito 72 rpm

The 82 will be happy w/ APC 15x4W on 30% nitro.

As for the 72, 14x4W is the largest I'd use.
Old 04-23-2005, 11:45 AM
  #10  
tIANci
Senior Member
 
tIANci's Avatar
 
Join Date: Jan 2004
Location: Kuala Lumpur, MALAYSIA
Posts: 10,489
Likes: 0
Received 2 Likes on 2 Posts
Default RE: Saito 72 rpm

Seany ... thanks a lot, I think the 15x4W is too much for the 72, just asking. I bought some W props and now I wonder why I bothered, realised how much I am going to lose in terms of forward speed. Guess they are only good for pure 3D ... I still find 5 pitch props as the best compromise.
Old 04-23-2005, 02:30 PM
  #11  
TD1
Senior Member
Thread Starter
 
Join Date: Sep 2002
Location: Luanda, ANGOLA
Posts: 293
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Saito 72 rpm

.
Old 04-25-2005, 01:20 PM
  #12  
seanychen
Senior Member
My Feedback: (4)
 
seanychen's Avatar
 
Join Date: Jul 2002
Location: Canton, MI
Posts: 2,914
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Saito 72 rpm

APC makes a 14x5N. Saito 72 will turn this prop the same rpm as APC 13x6. It pulls pretty well, I'd say better than 13x6. Since it's narrow, it is lighter and spools up better than 14x4W. RCM has a review of Kyosho Majestic w/ YS 63 and APC 14x5N prop. So it should be a worthy option for your 72.
Old 05-23-2005, 09:44 PM
  #13  
thundervee
Senior Member
 
thundervee's Avatar
 
Join Date: Sep 2004
Location: Goodrich, TX
Posts: 115
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Saito 72 rpm

I was kinda wondering this same thing glad you asked the question, I have a new 72 with a 14x4w in a funtana but haven't run it yet.
Old 05-30-2005, 10:53 AM
  #14  
DTB
Senior Member
My Feedback: (15)
 
DTB's Avatar
 
Join Date: Feb 2003
Location: Clermont, FL
Posts: 1,085
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Saito 72 rpm

Saito 72

APC 13x8 = 9630. Need a new glow plug also. Running 30/18. Lots of pull.
Old 08-14-2005, 04:59 PM
  #15  
AutoMike
Senior Member
 
Join Date: Aug 2003
Location: Seymour, IN,
Posts: 831
Likes: 0
Received 0 Likes on 0 Posts
Default RE: Saito 72 rpm

By reading the post it looks like some already know it but no one has said it yet. There was for me, about 500 rpm gain once I driled the muffler baffle holes out to 5/32. I did it one drill size at a time so as not to damage the baffle. With that done and running Cool Power 30% heli fuel, I fly helis too so dont flame me for $30/gal fuel "just for a Saito", I can get 11,400 with a Zinger Pro 12-6. I just love the engine once I got rid of all that backpressure. Before I'd done it I was about to send the motor back to Horizon because I didnt pay $235 off their site for a motor that wouldnt turn as much prop as my beat up ASP 65. I'll drop the nitro to 15% here in the next weekend or so but I cant see losing more than a couple of hundred rpm at the worst. Now I've got a nice motor but hate that I had to mod it out of the box to get it. Mike
Old 10-23-2006, 03:05 AM
  #16  
DarZeelon
Senior Member
 
DarZeelon's Avatar
 
Join Date: Apr 2003
Location: Rosh-HaAyin, ISRAEL
Posts: 8,913
Likes: 0
Received 2 Likes on 2 Posts
Default RE: Saito 72 rpm

I am getting 9,400 RPM on a Bolly Clubman 13.5x6 prop, on 10% nitro fuel.

The needle is very flexible and it is very easy to find the peak.


I guess a Bolly 12.5x8 will show a very similar number.

Ground clearance dictates that I use this size.
Old 12-15-2006, 04:38 AM
  #17  
DarZeelon
Senior Member
 
DarZeelon's Avatar
 
Join Date: Apr 2003
Location: Rosh-HaAyin, ISRAEL
Posts: 8,913
Likes: 0
Received 2 Likes on 2 Posts
Default RE: Saito 72 rpm

Because of ground clearance problems (that don't go very well with 'kangaroo landings'), I decided on getting some APC 11x6 4-blade props for this Saito. It gives me 3/4" more clearance than do the Bolly 12.5" diameter props.

It sure looks pretty nice with this prop, doesn't it?

I just took my tachometer and took a full power reading.

10,850 RPM on this prop!

I guess unloading in flight will bring the engine to the upper margin of its envelope (12k).


...And it pulls ever so strongly!


My Hobbico tachometer doesn't have a 4-blade setting, so it was nice seeing the tach read 21,700 RPM!
Attached Thumbnails Click image for larger version

Name:	Ki20448.jpg
Views:	57
Size:	92.2 KB
ID:	577547   Click image for larger version

Name:	To43536.jpg
Views:	42
Size:	97.2 KB
ID:	577548   Click image for larger version

Name:	Di99220.jpg
Views:	166
Size:	105.1 KB
ID:	577549  
Old 12-26-2006, 12:25 AM
  #18  
blw
My Feedback: (3)
 
blw's Avatar
 
Join Date: Mar 2004
Location: Opelika, AL
Posts: 9,447
Likes: 0
Received 2 Likes on 2 Posts
Default RE: Saito 72 rpm

I get 10,600 on an APC 13x6 and 15% fuel. I tried an APC 13x4W and it was a dog.

A 14x5N? I'll have to get one of those and see how it performs.

Great looking prop, Dar. Here's the million dollar question though, are there any spinners for a 4 bladed prop with a metal backplate? If so, I'm getting one too! Your RPMs look good to me.

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 -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.