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Building Tips and technical articles. => 1/2 A building. => Topic started by: Vincent Corwell on May 28, 2007, 06:42:13 AM

Title: 1/2 A Pathfinder
Post by: Vincent Corwell on May 28, 2007, 06:42:13 AM

Finished the 1/2A Pathfinder kit

AP 061 motor, not yet flown, needed 1 ounce of lead in nose to balance

now weighs 15 1/2 ounces.

Regards to all

Vincent

Title: Re: 1/2 A Pathfinder
Post by: Larry Renger on May 28, 2007, 08:16:26 AM

Very pretty!  What is the finish?  What lines and prop do you intend to use?

I have now run 3 AP Wasps, and find that to extract power, you need to let them rev - at least 19K on the ground.  The APS 6x2 and 5.7x3 seem to be the best available props.  If you need still more speed, a Master Airscrew 5.5x4 cut to 5" should work.  A C*x 6x3 proved too much load for mine, dragging the r's down to 14,9K, a number worse than I would expect from a Black Widow.  With a Tornado 5x3, the r's went over 23K, and the air blast was stirring up grass 30 ft away.  Big difference.

Title: Re: 1/2 A Pathfinder
Post by: minnesotamodeler on May 28, 2007, 01:34:32 PM

Now that's just a pretty plane, no matter how you look at it.  Let us know how it flies.

--Ray

Title: Re: 1/2 A Pathfinder
Post by: Vincent Corwell on May 29, 2007, 01:28:43 AM

Thanks for the compliments friends,

I have APC 5.7 x 3 and 6 x 3 and Master 6 x 3

Starting with 38' lines

The finish is mostly Solarfilm with small amount of paint
around the engine & tank area

will post  more next month , when flown , hopefully still
in one piece!!

Vincent

Title: Re: 1/2 A Pathfinder
Post by: Roger Vizioli on May 29, 2007, 09:09:23 AM

Vince,
Sent you an e-mail.
Roger

Title: Re: 1/2 A Pathfinder
Post by: Vincent Corwell on May 30, 2007, 01:05:53 AM

Many thanks Roger
unfortunately I wont get to read that until
Friday night, different puters, office n home
then Saturday morn 04:30 away on holiday
for 8 days
appreciate your attention
will reply direct when I get to it

Vincent