SMALL - espritmodel.com SMALL - Telemetry SMALL - Radio
Reply
Thread Tools
Old Aug 10, 2012, 04:20 PM
Registered User
Joined Apr 2008
46 Posts
Discussion
Saito FG 21 vs. FG 17

Hello all,

i am contemplating a GP Super Skybolt that calls for up to a .91 four stroke.

I like the Saito FG 17 for this plane (gas version of the Saito 100) but I believe the FG 21 would be more useful on other planes down the road. The FG 21 is four ounces heavier and $50 more. Are both engines generally free of problems?

I am not looking for the 3D performannce of an Ultimate Biplane. I want a smooth, mildly areobatic, non 3D biplane.

Anyone have an opinion on flying the GP Super Skybolt with an FG 21 instead of an FG 17?

Thanks for your help.

John T.
jptonks is offline Find More Posts by jptonks
Reply With Quote
Sign up now
to remove ads between posts
Old Aug 10, 2012, 05:09 PM
Who Dat!
GeetarJoe's Avatar
United States, LA, New Orleans
Joined Sep 2011
650 Posts
Four oz is not a lot on a short nosed airplane, in fact you may need it. I would go with the 21 and just put on a large diameter low pitched prop. Something in the 6-8 pitch range. That will keep the speed down and the thrust up.
GeetarJoe is offline Find More Posts by GeetarJoe
Reply With Quote
Old Aug 11, 2012, 03:39 AM
Registered User
Toysrme's Avatar
Birmingham, Alabama
Joined Jun 2002
2,970 Posts
my issue is thinking about other projects down the road. i dont see how that logic applies after a basic trainer. frankly. it's not even good logic for a basic trainer. (for what a .40 sized engine always cost... for heaven's sake just buy another engine and have *two* planes that fly...). if you like the fg-17 go that route.

GeetarJoe is also spot on about 4oz not being that big of a deal in a short nosed biplane of that size
Toysrme is offline Find More Posts by Toysrme
Reply With Quote
Old Aug 12, 2012, 09:30 AM
Registered User
MaverickP-51D's Avatar
United States, TX, Palestine
Joined Dec 2007
165 Posts
No substitute for cubic inches.....
My bolt sports a satio 100. dam fine combination. She's not overly powered but isnt a weinie either. Flys nice and scale and smooth with just enough for that little something extra.
Go with the FG21 and you wont be disappointed.
MaverickP-51D is offline Find More Posts by MaverickP-51D
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion Saito FG-21 gasser skypup Engines 64 Apr 02, 2014 12:50 AM
Question Saito FG-20 vs FG-21 brw0513_2 Engines 60 Jan 25, 2013 12:56 AM
Discussion Saito FG 20 discontinued, Hello FG 21 Ayeager Engines 1 Apr 28, 2012 12:03 AM
Wanted Saito FG-17 jmatusic Aircraft - Fuel - Engines and Accessories (FS/W) 0 Mar 15, 2012 04:47 PM
Help! SAITO FG-14/82 Petrol/Gas A Good Motor??? Jam1e Engines 3 Feb 27, 2012 08:28 PM