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Posted by frankswd | May 03, 2010 @ 09:47 PM | 11,598 Views
So i did some field testing of my P40N Sunday!
So specs, 26 Lbs of static thrust, 7500 RPM, 21X12 Prop, 86mph Pitch Speed

I ran her up and down the runway trying to get a feel for her. seems she wants to veer a little left. She went off the runway and hit a big A$$ hole hidden on the sideline Yes, there was some damage and it popped the landing gear strut off and bruised her chin but it will be fixed easy enough
Posted by frankswd | Nov 03, 2009 @ 09:21 AM | 13,479 Views
Here's the video of the Watt A Yak in Flight, I'll add graphs results as well.

Watt A Yak 45 Flight (3 min 26 sec)

Posted by frankswd | Oct 29, 2009 @ 10:34 AM | 13,022 Views
I'm continueing the testing on the Electric Conversion of a Great Planes Yak 54 with 86" wingspan from 50cc motor to Electric.

So today i've got another chart to add:
I decided that i needed to know the RPMs as well. So i added my Eagle Tree Brushless motor sensor to the mix and did some testing. The batteries weren't recharged so they aren't up to peak power for this test but it does show how the current draw is increasing dramatically to add each RPM at about the 7,000 RPM mark. I'm not sure this would hold true for a plane in flight but we'll test that later

you can look at my other blog entries to see the videos on how the basic test bed is setup.

Watt A Yak Part 2 (3 min 32 sec)

Posted by frankswd | Oct 26, 2009 @ 12:08 PM | 13,688 Views
I ended up with a Great Planes Yak with some help from Devin. It looks just like his here!

And at first we had put the DL-50 into it. But things changed and i learned what it took to deal with gas motors and decided to go back to my roots. Make it ELECTRIC

This plane has flown several times but i wanted to quantify it properly. So out with my Eagle Tree Systems equipment and new video recorder and this is the results

Eagle Tree Systems Graph for now.
Later i"ll upload video from home

Watt A Yak (1 min 26 sec)

And The Second Part

Watt A Yak Part 2 (3 min 32 sec)
...Continue Reading
Posted by frankswd | Mar 12, 2008 @ 09:15 AM | 15,199 Views
Here's a video of me opening up my P40 with Devin

Skyshark P40-N WarHawk (6 min 13 sec)

Posted by frankswd | Feb 25, 2008 @ 01:40 AM | 15,914 Views
Hey I got out to the shop to do some building. My Buddy Travis showed up and helped me over come some serious problems with the Tail wheel Retract ...Continue Reading
Posted by frankswd | Feb 18, 2008 @ 09:15 PM | 15,061 Views
Well, it's like this...
I had my favorite Corsair get burned up in a lipo fire
It was the Great Planes Combat Corsair. I didn't get another for a while because i wanted to get something with landing gear this time.

When i saw what World Models just released with landing gear and including a little outrunner brushless motor. I thought i had found my subsutitue.

It turns out not exactly a 'real" subsutitue because the GP corsair is built with bigger wingspan and much stronger. But it doesn't have landing gear, or come with motor for $100 bucks so for the money it's a good buy....i far
Posted by frankswd | Feb 11, 2008 @ 10:18 AM | 15,194 Views
This weekend my good friend Travis came over and we worked on motor mounting issues. I"m using the DL 50 from I've started this motor a couple of times now for breakend and it's been nice to me so far. This last time I leaned it up a little from the factory settings and it smoothed out pretty nice for still being new.

Travis took the photos this time and was inducted into the P40 club as well ...Continue Reading
Posted by frankswd | Feb 08, 2008 @ 01:39 AM | 15,008 Views
Worked on getting the Rudder installed. Man that rudder sure adds character to the plane. It was a pretty straight forward process typical robarts hing stuff. This time they made you pick you own hing points and drill them out. No big deal really. But take your time and line everything up. I under sized drilled my first holes so I could bias them on the final drill out and finishing. I used Poly U. glues for these again, with bees wax painted on the hinges with a soldering brush so they don't get gummed up by the glue. I also use a bambo skewer to drip and control the PU glues into the hing holes. This makes sure the glue gets below the outside edge. here's some pix of the bench top jig I used to drill the holes with.
Posted by frankswd | Jan 31, 2008 @ 12:10 PM | 15,048 Views
Ok, so I got the parts and started to put this BEAST together. One thing i can say about this ARF is that the instructions were obviously done by a modeler. Some of the finer points put into the instructions show this person knew what they were talking about. Also, most of the hardware is of outstanding quality. And the fact they predrilled the hing points for the flaps and alierons is a VERY nice touch. wish that was done on the rudder post as well but it's easy enough to do. And note, this is NOT a plane for a beginner to try to build or fly even as a ARF. Now let's look at some build pictures for details

The build starts with the main wing control surfaces.

Here's a tip my friend devin suggested and i worked out. the problem that i always hate is that when mounting control horns, through deep ailerons the screws NEVER line up with the base plate hole. He suggested jiging up something to use my bench top drill press. at first i resisted due to all the curves, nothing was flat or level .

but what i did later, with some pushing, i thought to put the wings on a box beside the drill press. then use a bunch of terry cloth towels to prop everything up to make it at least level to the eye. This worked much better than i expected and suggest you try it sometime too ...Continue Reading
Posted by frankswd | Jan 30, 2008 @ 08:45 PM | 15,436 Views
Let's see, should I use reply to expand on build blog or "make new blog entry" for P40 build log?
Posted by frankswd | Jan 30, 2008 @ 03:20 PM | 16,516 Views
SO SkyShark put their 82" P40 on 1/2 sale for Xmas and i got a Xmas check from family ....There was really no choice in the matter.

The P40 is my wife's favorite plane and i like it too (just not as much as Corsair). Just one look at the plane and knowing skyshark's rep, i had to have it So i logged on and got out the card and put it in the cart.

Actually i struggled for a while over the cost of the custom Seria Giants retracts which was more than the air frame. I'm not used to doing retracts and the added cost. I called and talked to Skyshark and they assured me that these retracts were worth it. I finely came to accept that the sale discount almost covered the cost of the retracts so i was still in the "bargin" deal....right? Then I committed. I estimated this whole project to cost $1700-$2000 and of course tried not to admit the $2000 to "her" or myself.

So here's the start of my build thread. I've gotten a ways into this now but not so far as to make the build log pointless. Here's how it came from the Postmaster!
Posted by frankswd | Jul 24, 2007 @ 09:09 AM | 15,504 Views
Same flight just remixed the video. I think I like it better. what do you think?

Condor Voodo Flight Data and Video Remix (2 min 21 sec)

Posted by frankswd | Jul 18, 2007 @ 08:57 AM | 15,305 Views
Posted by frankswd | Jul 17, 2007 @ 01:20 PM | 16,469 Views
I thought i would see how well this blog thing works

I think U R going to like this one! Me and my friend Bob henderson used Eagle Tress systems plus RangeVideo setup plus ground camcord to record a Condor Voodo flying. It was a very poor thermal day however Still it's the max technology I've done so far! I'll work on getting something up during my lunch break.
Please see comments for more pictures and stuff!