RE: Gilbert .11 - equivalent engine?    Gallery
View related threads: (in this forum | in all forums)

Logged in as Guest



Users viewing this topic: none
    Search This Thread  
 
Printable Version

All Forums >> Radios, Batteries, Clubhouse and more >> Control Lines >> RE: Gilbert .11 - equivalent engine?
Page: <<   < prev  1 [2]

Tower Hobbies Get Coupon Codes Brands  
Login
Message << Older Topic   Newer Topic >>
RE: Gilbert .11 - equivalent engine? - 7/8/2012 2:48 AM   
Bill Adair



Posts: 134
Score: 100
Joined: 2/2/2005
Last Login: 6/19/2013
From: Beaverton, OR, USA
Status: offline 		Hi Steve,

This is an old thread, but I noticed there were few rpm readings offered, in response to your question.

I've run two of my Gilbert .11 engines on the bench, but have yet to put one on an airplane.

Mine both run well, are very easy to start, and have reasonable power. I'd been advised to use a little more Castor in my fuel, so I'm running 25% pure Castor (Sig), with 10% nitro in mine. driving a 7X4 Master Airscrew. Mine turns that prop at 12,000+ rpm, and as a friend mentions below, will peak at a bit over 13,000 rpm. That is very reasonable for an engine of that period.

Here is the email from my friend in Australia, who puts is nicely.


"Hi Bill,

I'm pleasantly surprised by the Gilbert. Its a sweet handling engine,
starts easily (backwards sometimes). I'm giving it a long, careful
break-in with 25% castor fuel. No sign of the glow head burning out
yet, and if it does I have 5 spares or can go to the Cox .15 head.
With each run it gets stronger & smoother sounding - I think it going
to be a quite robust & long lived engine.

Performance is not as bad as I've been led to believe. With a Master
Airscrew 7x4 mine will four stroke at over 10,000, rich two stroke at
12,000 RPM (comparable to Fuji .099 or my MK-17 diesel on small
venturi). Briefly peaked I saw 13,400 - not too bad at all. In
other words, it runs pretty much like any other sports .09 from the
period. The Enya 09-IV, OS 10 FSR or TD .09 easily out perform it, but
it will be perfectly usable for sports flying.

Cheers,

Col"


I've had no luck getting the Gilbert .07 glow heads to last, as most burn out on the first run! Using dry cells kills them instantly, and a power panel set to minimum current is the way to go. Remove the head, attach the glow lead, and slowly increase the power until you get a dull red glow. My panel meter reads only half way to the green zone, and that's about max for the .07 glow heads.

A friend has the tap and die to mod .07 heads for Nelson plugs, but has not got around to that as yet.

Hope you enjoy your Gilbert .11 engines. I'd be interested in what airplanes you put them in, and how they perform for you.

Bill

_____________________________

BadAir

Hide Signatures

(in reply to Jim Thomerson)
       Post #: 26

RE: Gilbert .11 - equivalent engine? - 7/8/2012 2:55 AM   
Centurion13


 

Posts: 16
Score: 100
Joined: 9/2/2006
Last Login: 11/29/2012
From: BREMERTON, WA, USA
Status: offline 		Thank you for the detailed response. I am currently running 7-3s on mine - the 7-3.5 just would *not* exceed a certain speed - there was no up or down, no range at all. I was running Hangar 9 aero blend with 15% nitro.

Yes, I have gathered from a number of sources that this engine is equivalent to a .09. Fair enough. At least it runs well and there are plenty in the box.

Now to find a plane from Brodak that will take an engine this size and fly reasonably well. Not gonna smoke the circle, but hey, it's almost fifty years old. I am glad it *runs*.

Steve

Hide Signatures

(in reply to Bill Adair)
       Post #: 27

RE: Gilbert .11 - equivalent engine? - 7/8/2012 3:50 AM   
Bill Adair



Posts: 134
Score: 100
Joined: 2/2/2005
Last Login: 6/19/2013
From: Beaverton, OR, USA
Status: offline 		Steve,

Check Blackhawk models, and in particular the Dick Sarpolus designed half-A Nobler. I've been considering that myself.

Most of the Dick Sarpolus designs recommend a Cox TD .049, so the Gilbert .11 should do well in the little Nobler. You may have to shorten the nose a bit to get it to balance.

Also check under "New Items", and look at the Stunt Rocket. It has built up wings, so it should be a good flyer.

I have several Blackhowk kits, and they are very well done.

Here is the link, in case you haven't been there yet.

http://www.blackhawkmodels.com/index.html

Bill

_____________________________

BadAir

Hide Signatures

(in reply to Centurion13)
       Post #: 28

Page:   <<   < prev  1 [2]
All Forums >> Radios, Batteries, Clubhouse and more >> Control Lines >> RE: Gilbert .11 - equivalent engine?
Page: <<   < prev  1 [2]





Jump to:


 
Google 



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

Photo Gallery | Instructor Search | Field|Track|Marina Search

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

SITE MAP!   : :   FORUM RULES

RC Universe is a service of Internet Brands, Inc. Copyright © 2001-2013.

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


0.172RCU1