Monday, September 29, 2008
With all the silicone hinging done but the elevators I now started with the servo tray for the rudder and elevator . The aileron servos and Flap servo will be mounted in the wing. More or less on track with this build now and I should be finish by the end of this week.
Hold your breath for the last post on the Slope Aero Commander Part 11
Saturday, September 27, 2008
Is anyone interested to join us on the Friday 31st of October through to Monday the 3rd of November for a Scale and General Fun-Slope-Fly at Estcourt? We will be staying at the Blue Haze Lodge. Lots of B&B in Estcourt.
green = tarred roads
yellow = off-road
blue = quick way to fly-site
Thursday, September 25, 2008
Wednesday, September 24, 2008
and faster. Thanks Mark. I have completed the in flight engine cowlings as well as the fuselage bolt beams that will hold the wing down.
The wing will held down by two 6mm bolts in front of the wing and two 5mm bolts in the back.
The corresponding holes and 13mm dowels were align and fitted in the wing, and wing balsa block tips glued on (still to be sanded and rounded of)
Still have to cutout and hinge the Ailerons, flaps and elevators surfaces but like I mention in the previous build that I am running still slightly behind schedule but I can see the light at the end of the tunnel.
I plucked the courage to weigh all the parts constructed so far the
Wing =1.2kg (this is on the heave side but still this is a big wing 2.4Meter span and
350mm root 150mm tip)
Rudder and Stab = 250 grams.
Fuse = (1Kg with no foam remove yet, painted and finished -this surprise me)
All up weight with out equipment and nose ballast = 2.5 kg.
Add another say 700gr for RC equipment and ballast and I am looking at +/- 3.2 Kg
all up weight. I don’t think this is to heavy but it will require a good wind on Volkies
to be on the safe side for the maiden flight.
Sunday, September 21, 2008
20 days gone and less than 20 to go.
I managed to get the wing done today and as far as the schedule is concerned I am falling slightly behind but with a public holiday coming up on Wednesday I should be back on track. In the meantime I have cutout the wing , tail plane and vertical Fin seating’s in the fuse so there is progress.
The airframe is now complete
out and hinging of the moving
More on this build Part 9 (and before you get excited to be posted Thursday or Friday)
Thursday, September 18, 2008
Wednesday, September 17, 2008
Sunday, September 14, 2008
This weekend I managed to complete the stabilizer and rudder construction.
I still have to cutout the elevator and moving part of the rudder as well as the hinging.
More about that in a later build.
I hope complete the wing construction this week. Still 25 days left. It is going be a close call to finish this baby on time.
More on the slope commander in Part 8.
Thursday, September 11, 2008
I guess that I am not alone in burning some midnight oil trying to beat the dead line for the PSS slope weekend in October and the recent heat wave we have experiencing is not helping, making a person feeling
energy -less during the day.
With 30 days left there is still time left and last night I finish of most of the foam cutting with only the outer tips remaining to be cut.
I hope to start bagging the tail and rudder this weekend.
I am not going to cover the foam cutting (or feather cutter) as this will be a lengthy posting on its own but in the picture below you can see what my foam cutting table looks like.
More on the Slope Aero Commander in Part 7 .
Tuesday, September 09, 2008
Volney put together a very interesting but confusing contest for us: F3B duration rules with 200m winch lines, F3J flight line spacing and all classes to fly 10 minute max so that they could all post open scores.
The contest pace was brisk with Volney at the helm and Grabe helping out from time to time. The only delays were for line break fixes - of which there were many.
The lunch break was planned for after the contest, but due to the many delays and the boeries rolls being ready before flying finished, most of the guys just couldn't wait and tucked in while flying.
Field conditions for landing were good. The grass had obviously been well watered the day before the contest producing huge patches of shoe clinging, slippery mud where the grass had been harvested. The combined dry and dusty dirt road to the field and the slushy mud entrance road resulted in very messy cars, but I'm sure the Silverton carwash vouchers are in the mail.
All in all, another great HTL contest. Nice to have some green grass underfoot and great to see a few more BERG entrants. Final results were Conrad, Craig and Paul on the top three list. Piet placed 6th with consistently good flying, I slipped down to 15th with two bad flights (three launches on one flight before I found a patch of usable lift - the little Sagitta just not able to stretch between thermals from launch height) and Jochen ended 20th - not bad for his first contest flying a standard Tsotsi.
And to Evan, our special thoughts are with you and your family this week.
At this stage I am more concern about the weight and I need to move on to making the flying surfaces. I manage to cut the vertical tail and cut out of newspaper the templates for the windows that I will stick on with vinyl film. This still looks to big and I will trim the final shape of them down a bit. (hope that rudder looks more streamline now, Mike)
On Sunday I could not get much done because of the Silverton leg of the HTL, but last night I was chipping away at this build again. So more on this build in part 6.
Monday, September 08, 2008
On our fist Birthday we had 7000 on the clock. I don’t know how many forward gear’s a Blog have, but every time you think that it has reached it’s saturation point , it move’s one more gear up as the visitors from all over the world just keep streaming in.
The statistic counter has revealed the flowing data.
Page loads 30170 for the last 2 Years (the number of times visitor has logged on to BERG Blog)
Unique Visitors 8000 for this year
First Time Visitors 6000 for this year
Retuning Visitors 2000 for this year
I heard Mike (GBOGH) said something about making a 6 Meter Ventus cake for this grand occasion .
To all our Blog readers and contributors many thanks keep The Blog on rolling.
Saturday, September 06, 2008
Friday night I completed cutting the wing, tail and rudder templates and I also prepared the fuse for spray painting on Saturday. I used 1 K primer and added thinners to make the mix so that I could paint it on with a paint brush. I gave the fuse two coats with second coat thinner that the first coat and lightly sanded the fuse after the first coat. Before I start the spray panting I will lightly sand the fuse down with a lighter grade of sandpaper.
I can only get the foam for the wing next week but I have cut the blank blocks for the rudder stabilizer. So no hold up as jet and the work can go on. I hope to cut the stab and rudder on Saturday as well.
More on building the Slope Commander in Part 5
Thursday, September 04, 2008
Tuesday, September 02, 2008
(Click on the picture to make it lager )
The famous Rockwell Aero Commander that Bob Hoover flew for at more than 2500 Air shows and demonstrations. Now have a proud home under the wing of the just as famous
Concord the Smithsonian national Air and Space Museum. Bob donated this his personal Aero Commander to the museum after he lost his flying license at the age of 73.
Last night I started plotting out the wing sections that I want to use on the Slope Aero Commander. I prefer the plotter over a laser printer because I found in the past that some laser printers do not scale the dimensions inputted correctly. According to Hp the plotter can plot accurately up to 1/1000 of a inch. Any way, no way's one can cut the resulting template that accurately.
I plot all the Templates twice as to make intend to use them in my automatic foam cutter.
These paper templates once cut out will now be transfer onto Formica and cut to shape( see the picture below).Once all the templates are complete I will start cutting the tail, rudder and wing Foam cores.
I have no stock of Polyester foam but will order some shortly. In the meantime I still have to spray paint the Fuse. Some times you need the wind and sometimes not.
More on this build in Part 4.