Cox Engines Forum
You are not logged in! Please login or register.

Logged in members see NO ADVERTISEMENTS!


**VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020) - Page 2 Cox_ba12




**VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020) - Page 2 Pixel

Log in

I forgot my password

Search
 
 

Display results as :
 


Rechercher Advanced Search

Latest topics
» Contest - Contest - Contest
by Cribbs74 Today at 7:10 am

» Designing a Tee Dee RC carb
by fredvon4 Today at 6:06 am

» COX 049 Product Engine '76 - type confirm .
by pegin964 Today at 3:09 am

» Carl Goldberg Shoestring
by NEW222 Yesterday at 9:22 pm

» Tank Cleaning and an Old Rant from my Youth
by Ken Cook Yesterday at 8:24 pm

» Home made fuel nipple for COX Tee Dee RC carb
by balogh Yesterday at 3:56 pm

» COX TeeDee09 RC in flight with the Cosmic Wind
by balogh Yesterday at 12:16 pm

» Fall S.M.A.L.L. Friday
by Kim Yesterday at 10:33 am

» Big Brother
by NEW222 Sat Oct 16, 2021 3:18 pm

» Cox Engine Stories
by rsv1cox Sat Oct 16, 2021 7:39 am

» It's raining Cox engines
by rsv1cox Sat Oct 16, 2021 7:19 am

» Simple Baby Ringmaster build
by MauricioB Sat Oct 16, 2021 12:09 am

Cox Engine of The Month
October-2021
MauricioB's

"Babe Bee .049 r/c"



PAST WINNERS
CEF Traveling Engine

Win This Engine!
Forum Store
CEF Ear Savers
Gallery


**VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020) - Page 2 Empty

**VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020)

Page 2 of 2 Previous  1, 2

Go down

Choose the next engine of the month!

**VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020) - Page 2 Vote_lcap15%**VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020) - Page 2 Vote_rcap 15% 
[ 6 ]
**VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020) - Page 2 Vote_lcap10%**VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020) - Page 2 Vote_rcap 10% 
[ 4 ]
**VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020) - Page 2 Vote_lcap10%**VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020) - Page 2 Vote_rcap 10% 
[ 4 ]
**VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020) - Page 2 Vote_lcap5%**VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020) - Page 2 Vote_rcap 5% 
[ 2 ]
**VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020) - Page 2 Vote_lcap15%**VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020) - Page 2 Vote_rcap 15% 
[ 6 ]
**VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020) - Page 2 Vote_lcap5%**VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020) - Page 2 Vote_rcap 5% 
[ 2 ]
**VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020) - Page 2 Vote_lcap13%**VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020) - Page 2 Vote_rcap 13% 
[ 5 ]
**VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020) - Page 2 Vote_lcap5%**VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020) - Page 2 Vote_rcap 5% 
[ 2 ]
**VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020) - Page 2 Vote_lcap3%**VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020) - Page 2 Vote_rcap 3% 
[ 1 ]
**VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020) - Page 2 Vote_lcap18%**VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020) - Page 2 Vote_rcap 18% 
[ 7 ]
 
Total Votes : 39
 
Poll closed

**VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020) - Page 2 Empty Re: **VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020)

Post  GallopingGhostler Mon Feb 17, 2020 2:55 pm

A simple escapement was wired in to the receiver circuitry be actuated by "quick blip". A tap of the momentary switch or "key" would trigger this escapement to go full throttle / part (or low) throttle. It was "bang, bang", "low, high", "high, low"".

You'll notice a number of earlier engines to include the Fox, OS, Enya, that had a two needle setup.

In the escapement driven engine era, the OS Pet .099 had a carburetor similar to the post Cox manufacturing era choke tube carburetor, where it reduced airflow. Here's a photo of such OS Pet. It is not my photo, found somewhere along the way may be even from the OS website. It is the steel fin Pet. One I have is the later aluminum fin steel sleeve Pet.

**VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020) - Page 2 Osm-1911
GallopingGhostler
GallopingGhostler
Diamond Member
Diamond Member

Posts : 2581
Join date : 2013-07-13
Age : 67
Location : Clovis, Nuevo México

Back to top Go down

**VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020) - Page 2 Empty Re: **VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020)

Post  Dave P. Mon Feb 17, 2020 8:07 pm

Thanks guys for the explanation. I learn something new every day here. This Site Rocks!
Dave P.
Dave P.
Gold Member
Gold Member

2020 Supporter

Posts : 477
Join date : 2017-07-31
Age : 64
Location : Durham, NC

Back to top Go down

**VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020) - Page 2 Empty Re: **VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020)

Post  GallopingGhostler Mon Feb 17, 2020 9:00 pm

The question was asked on how one would switch fuel from high speed needle to low speed needle. This of course was before my time, because I was born when the Fox .59 twin needle came out.
**VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020) - Page 2 66304510

Where obtained: AMA: History of Model Engines

This was one year after Hal DeBolt debuted his 34" half-A Livewire Kitten. Drawing shows tube (valve) super-regenerative receivers being used, with 45 to 67.5 Volt B+ tube supply voltage and 1.5 to 3 Volt tube filament heater batteries. (Plan can be downloaded from Outerzone.)

Can you imagine a radio controlled plane with a 6 foot wingspan flown rudder only by escapement with a Fox .59 twin needle on auxiliary quick blip throttle with the power of a modern .40 - .45 plain bearing Sport Schneurle on a primitive tube radio set?

I recall seeing photos of the fuel valves that was escapement or servo operated, allowed fuel to be directed to the high speed or low speed needle. For example, OS made one. The modern R/C carburettor did away with this. However, such photos evade me for the moment.

Perhaps someone may have a photo of one from their archives to share?
GallopingGhostler
GallopingGhostler
Diamond Member
Diamond Member

Posts : 2581
Join date : 2013-07-13
Age : 67
Location : Clovis, Nuevo México

Back to top Go down

**VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020) - Page 2 Empty Re: **VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (February 2020)

Post  Sponsored content


Sponsored content


Back to top Go down

Page 2 of 2 Previous  1, 2

Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum