davidterrell80's blog View Details
Posted by davidterrell80 | Jan 30, 2024 @ 12:25 AM | 4,994 Views
Review of OS Super Gemini 300 from the November, 1987 issue of Radio Control Modeler (RCM), by Clarence Lee.

Uploaded for a friend.

Article PDF is inside ZIP file.
Posted by davidterrell80 | Nov 12, 2023 @ 12:02 PM | 6,609 Views
I performed a simple set of drop tests on the fuselage--from about 25 cm-- to simulate less-than-perfect landings and discovered a weakness in the Middle-aft fuselage interface. The foam board I used for the interface turned out to be a bit brittle and some cracks developed after 8-10 tail-down drops.

I cut the interface out and replaced it with two 4 cm thick EPS foam blocks shaped to fit the interior fuselage across the top and bottom. The added toughness of the EPS passed further drop tests.

Completed and attached the nacelles. I will be making and attaching the "firewalls" this week.

I'm turning my attention to the systems.
Posted by davidterrell80 | Nov 03, 2023 @ 08:59 PM | 4,551 Views
Fabricated the wing (53.5 inches 138 cm) in one piece.
There were some tense moments with the hot glue.

Now, I'll build and mount the two nacelles.
Posted by davidterrell80 | Oct 27, 2023 @ 07:13 PM | 5,062 Views
I settled down and finished out the mid-fuselage, building a battery and avionics shelf, and fabricating a trailing nose geal. I decided to set it up like the FT Guinea Pig.

Time to turn to the wing and nacelles.
Posted by davidterrell80 | Oct 23, 2023 @ 03:11 PM | 4,019 Views
Much work is going on, just not against the Nomadic.

I now have a Cricut Maker 3 and have been playing at making my own markings.

But I have been working on the Main Undercarriage.

I sandwiched a piece of plywood between foam sections and mounted the bent wires to it.

I'm considering making the upper and lower sections of the pod in profile. This would reduce cross-section drag and effectively increase the lift at positive angles of attack.
Posted by davidterrell80 | Oct 14, 2023 @ 06:33 PM | 5,782 Views
I returned to the aft fuselage. I closed the bottom and set up the interface with the mid-fuselage. After joining, I used a layer of Gaffer's Tape to clean up the joint for marking the fuselage.

Now, I'm figuring out the lower stub wing that carries the main landing gear. Once that is done, I will set up the nose gear, completing the undercarriage.

Then, I think, I will use some colored packing tape to make preliminary markings on the fuselage.
Posted by davidterrell80 | Oct 13, 2023 @ 10:00 AM | 5,965 Views
I decided to sketch out and build a test nacelle.

Here it is on the test stub wing section.

I will run the wires up the leading-edge cell and not weaken the spar with penetrations.

The last photo shows the Nomadic fuselage against the one-half size test article fuselage for the Farman F.60 Goliath I want to build using 10mm foam sheet.

The 3-part fuselage I'm testing in the Nomadic is to prepare for the Goliath. I want to keep the biplane wings and mid-fuselage together and remove the nose and tail sections, so it fits for transport.

I also appended a 3V of Goliath.
Posted by davidterrell80 | Oct 10, 2023 @ 12:39 PM | 5,806 Views
Rudder and Stab are complete. The aft-fuselage is ready to close.
I'll work up the interface between mid- and aft-fuselage after that.

I will then deepen the wing pocket a bit and prepare the wing-fuselage interface covering.

Then:
  • lower stub wing and main gear
  • nose gear
  • wing fabrication and rigging flaps + ailerons/flaperons.
  • nacelles and power trains
  • avionics/battery shelf
  • avionics rigging

Posted by davidterrell80 | Oct 08, 2023 @ 03:57 PM | 6,666 Views
WING: I used my FT Wing Worksheet to calculate the first draft of the wing and cut a short test section. I made a saddle pocket in the center fuselage and did a trial fit. I'll be adding a doubler to the interior fuselage to spread the wing loads; and, reworking the piece I cut from the fuselage to cover the wing pocket.

RUDDER: I got sone new CA as my old bottle had solidified. So, I will soon hang and rig the rudder.

FUSELAGE JOIN: After rigging the rudder, I'll close the aft fuselage and form the aft fuselage interface with the midships fuselage.
Posted by davidterrell80 | Oct 06, 2023 @ 07:50 PM | 6,987 Views
I still need to hang and rig the rudder, but I wanted to rough out the mid-fuselage to get a feel for size. The overall length will be about 40 inches.

I'm beginning to think about whether to add landing gear or plan on hand launches and belly landings. Near scale wheels would be 45mm diameter. That is a bit on the small side for a grass field.

I'm reserving the radome as a weight pocket.

I also attach a photo showing my current choice for livery.
Posted by davidterrell80 | Oct 04, 2023 @ 02:42 PM | 6,695 Views
A drone called the T-600 -the same name as the Terminator - successfully launched a torpedo from the sky.

BAE Systems demonstrated the feat during a NATO training exercise, which saw a human controller fly the quadcopter strapped with the torpedo from a dock and over the ocean, where it let the weapon drop.

The electric-powered, car-sized T-600 has a payload capacity of 441 pounds, tops speeds of 87 miles per hour and has a range of up to 50 miles.


https://www.dailymail.co.uk/sciencet...15705299729658
Posted by davidterrell80 | Oct 03, 2023 @ 07:07 PM | 6,600 Views
I'm still rigging the tail feathers. The horizontal stab is good. I'll be hanging the rudder in the next day or two.

I used some vinal to smooth the stab leading edge. I will smooth out the rudder as well.
Posted by davidterrell80 | Sep 28, 2023 @ 08:16 PM | 9,521 Views
I drew and built the aft fuselage and vertical tail. The tail is pretty beefy as it must support the all-flying elevator. I'll cut the rudder free once I work out the elevator. I may cover the tail before flight to relieve the "K'fminess" (steps).

Drawings to follow.
Posted by davidterrell80 | Sep 28, 2023 @ 10:39 AM | 9,416 Views
I built the Eagle in 1976. About 8 years ago, the firewall was getting very soft. Since I was increasingly moving to electrics, I re-engined the plane.

Recently, I was asked about the power train I chose and took the plane down for photos.

Note the amount of ballast I had to add up front to balance!

I plan to go fly it a couple of times this afternoon.
Posted by davidterrell80 | Sep 21, 2023 @ 01:38 PM | 8,395 Views
Forward fuselage structure looks OK.

I still need to make clean drawings of the facetted "Fore Top" and "Main Top". There are many construction lines on the sketches.

The seams are finished with white Gaffer's Tape....Continue Reading
Posted by davidterrell80 | Sep 14, 2023 @ 10:48 AM | 9,565 Views
I've started working on a clean-sheet foamy that will look a bit like the GAF N.22 Nomad.

I'm working from a GA drawing found in the Nomad thread in the Scale Views forum.
  • SIZE: My first decision is to make the cabin height 15 cm and let all the other dimensions and parameters derive from that. I'm anticipating a wingspan of about 1.5 to two meters and will be rounding dimensions to make measuring and cutting foam easy.
  • SURFACES: I'll use a FliteTest-style folded wing section, looking to the FT Legacy v2 for inspiration, and slinging the nacelles below the wing. Simple flaperons using radio mixing. The full flying horizontal stab is TBD.
  • SYSTEMS: Spektrum radio with AS3X. SAFE is TBD. I'm considering 3S power trains with lower pitch props (climb over speed).
  • CONSTRUCTION: I'll be avoiding compound curvatures and retractable landing gear. Since I fly off a grass strip, I may leave off the UC completely, so it looks better in the air. Markings TBD.
  • DESIGN: I'm planning to draw/build the fuselage in three sections: nose, cabin, tail joined by a standardized interface. My first prototype will be way-stand-off scale. Later, I can make new nose and tail sections that are "more scale".
  • PLANS: I will make dimensioned drawings of the various parts available.

Posted by davidterrell80 | Sep 08, 2023 @ 12:24 PM | 8,367 Views
https://www.thedrive.com/the-war-zon...seen-it-before

“Doing a photoshoot like this at the edge of space is entirely different than when I did the same thing with fighter jets,” Blair reflected. “At these altitudes, there are only 5 knots of speed that separate the planes from going so fast they fall apart or going too slow that they fall out of the sky completely. For this reason, we had to use geometric turns to stagger the aircraft rather than having the second plane speed up or slow down, which was yet another complexity that made this photoshoot as challenging as it was.”