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Building Tips and technical articles. => 1/2 A building. => Topic started by: Bootlegger on December 11, 2020, 04:46:20 PM

Title: Cox baby bee 049
Post by: Bootlegger on December 11, 2020, 04:46:20 PM

 I am puttin one together, and it has a plastic back plate, and only one fill/vent place for fueling it up, where does it vent?  Obliged for y'all's help...          H^^    :! n~

Title: Re: Cox baby bee 049
Post by: 944_Jim on December 11, 2020, 05:22:57 PM

I know the metal ones with only one nipple had a hole on the opposite side of the needle valve.

Title: Re: Cox baby bee 049
Post by: Wayne Collier on December 11, 2020, 05:30:20 PM

There should be a small hole near the needle valve.

Title: Re: Cox baby bee 049
Post by: Larry Renger on December 12, 2020, 08:52:24 AM

Actually, there is a small hole next to the nipple. That is so the overflow can not “squirt”. It will be blocked by the end of the filling hose.

Title: Re: Cox baby bee 049
Post by: Dave Hull on December 18, 2020, 11:41:51 PM

The hole can be hard to see on the black plastic backplates. I came out to the field on day and saw a couple of guys trying to fly a Cox-powered Something-Or-Other. They were going thru an awful lot of gyrations while prepping it to fly, so I went over to see if they needed anything. No, they were fine, just fueling up. Turns out, they remembered the old "Two-Nipple" metal backplates and thought this plastic one was defective. So they were pulling the needle valve out each time in order to let the fuel in.....

The Divot

Title: Re: Cox baby bee 049
Post by: Larry Renger on December 19, 2020, 07:19:27 PM

Hoo boy, flood city!

I remember my boss, Bill Selzer, recounting a tale of seeing a dad and kid trying to start a Cox engine. The dad would hook up the battery, pull off the clip then start madly flipping the prop. Oddly enough, it wasn’t working well.  LL~

Title: Re: Cox baby bee 049
Post by: Dave Hull on December 19, 2020, 10:00:28 PM

That seems odd, Larry. I have a ST C.35 that uses that exact technique and it has started every time I tried it. Hmmm

I was test flying a rebuilt MouseMotor two weeks ago. It had a Golden Bee tank and a Baby Bee backplate. We ran short on laps but we left a nice contrail as the fuel siphoned out of all those vents....

The Divot