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Classic Designs => Classic Planes => Topic started by: Gregory Hammond on February 19, 2014, 10:48:56 PM

Title: Mercury Cobra
Post by: Gregory Hammond on February 19, 2014, 10:48:56 PM

Just finished my scratch built Mercury Cobra.

It has an increased wingspan of 42inches (extra 2inch rib bay on the inside wing)

Adjustable leadouts, carbon fiber pushrod with adjustable metal clevis at the elevator.

Engine is an older Thunder Tiger 25 modified with a Enya 19 delrin venturi and a OS 20/25fp needle valve. Top Flite 9x4 wooden propeller to begin, modify as needed.

The engine has good compression so it should run well. >fingers crossed<

Home made metal fuel tank, approx 3oz capacity.

Rattle can purple paint with Nitro fuel proof clear over top. White plastic film on top wing covering, blue and white check film on the bottom.

Hand crafted "Cobra" decal.

Weight is 29oz which I am very happy with!!

Az

Title: Re: Mercury Cobra
Post by: Bill Little on February 20, 2014, 11:18:00 AM

Hi Gregory,

Welcome to the forum and very nice workmanship on the Cobra,

BIG Bear

Title: Re: Mercury Cobra
Post by: rustler on February 20, 2014, 01:32:14 PM

And the Best of British (luck). One of our better pilots built one last year for Profile Stunt, - crashed it due to lack of manoeuvrebility. However, a good steady craft if you're getting back into C/L.

Title: Re: Mercury Cobra
Post by: rustler on February 21, 2014, 02:53:24 PM

I should have said - the extra span should definitely help.

Title: Re: Mercury Cobra
Post by: Gregory Hammond on March 05, 2014, 12:57:30 AM

My Mercury Cobra flies very nicely :)

I had a friendly competition pilot do the test flight today, he really enjoyed the flight!

So I am a happy little vegemite :P

Az

Title: Re: Mercury Cobra
Post by: Annette Elmore on March 21, 2014, 09:27:24 AM

Here is my Cobra - OS Max 25FSR.

still waiting for some decent weather when I'm not working for its maiden.

Annette

Title: Re: Mercury Cobra
Post by: Gregory Hammond on March 26, 2014, 01:53:45 AM

Yay! Another Mercury Cobra. Annette hope your maiden goes well. I am very happy with mine.

It is my stunt trainer, so far I am able to fly level and try a few loops. Still nervous about inverted!

Already started a 25 size flapped stunter, always need a second air-plane when learning :)

Az

Title: Re: Mercury Cobra
Post by: Gregory Hammond on March 27, 2014, 07:27:10 PM

I used Top Flite Lustrekote Crystal Clear in a rattle can.

http://www.monokote.com/lustrekote/lustrekote.html

Local hobby shop had colours and clear, so I tried it. Works well, goes over the paint like a thin film of clear plastic.

Az