Posted by old4570 | Yesterday @ 07:55 PM | 6,113 Views
Radiomaster Tx16 and the Turbo Timber (10 min 8 sec)



A) Smooth as margarine !
B) TX16S - Am I loosing some control deflection ? Flying inverted , it really felt like I did not have enough elevator to hold inverted flight . Maybe it was cos I was trying to fly slower ? But it really felt like I had given up some throw , even in rolls .
C) I love the battery Voltage readout . ( Flight battery ) Makes flying so much safer . ( Knowing the flight battery voltage )
D) Being able to customize the main screen , nice !
E) No frequency fine tune . Oh dear ! ( more later )
F) I may try placing the battery a little further back next time ( CG ) , make holding inverted easier ? , one hopes .

Ok so , I am missing the frequency fine tune . Though the Tx16 is really smooth and precise . That roller / clicker is a PITA . I was getting more Signal warnings with the Tx16 than with the Qx7 + Multi protocol module . A lot more . ( Need that freq fine tune ) .

Aside from some things being (?) what they are . Scroll wheel / Switch crowding / Freq fine tune / some loss of control throw (?) I will have to check that .
Maybe it's just how the Tx feels ? Maybe it's too smooth and precise ? Flying a model , the Tx feels great on the gimbals and the model just flies smooth .
Too much of a good thing ?
Maybe I need to back off on the Expo ?
Either way . Id say over all that the Tx16 is a fine radio .. lets not forget that warranty thing if you...Continue Reading
Posted by Jack Crossfire | Yesterday @ 06:36 PM | 6,696 Views
The motor encoders proved to get dislodged quite often, requiring field calibration, so it was time to finally make a filesystem. To keep it simple, it's a linked list of files. The filenames are just numbers. It just appends every new file to the end of the list. When it runs out of space, it erases all the flash & rewrites the unique data to the start. The cause of running out of space is normally a motor table, so the file ordering usually ends up being a config file followed by a motor table.

The trick is the unique data has to be smaller than RAM for the erase to succeed. The RAM is currently configured for 81kbytes & the flash is configured for 16kbytes. There's no way to erase a single file at a time. If the list is too large to be traversed before the watchdog timer expires, it could get stuck. Corruption with 0 length files is quite easy, but it gets the job done.
Posted by thermaled | Yesterday @ 03:11 PM | 7,325 Views
First time blogger, here in the rolling hills of Wiltshire UK. Just getting back into slope soaring again after an eight or ten year break, older, fatter and much less fit than I used to be, feel the need to walk more around the local countryside, and the local hills in particular. I am quite lucky as the village where I live is in a valley and can fly off the slope in any wind direction, with a two to three hour hike to get there and back again. Of course its only ten minutes by car, some even less, but wont get fitter driving about, so will be generally walking to the slopes.
First hike today, and decided to carry two planes, a 48" Lumberjack that I have had for years, and an AHI which is new and only flown it once so far, in a rather light wind. Conditions today, thermally and rather light wind, 5 to 7 mph on the edge and dropping to zero, so a bit light for both planes but managed some flights with both, nice long grass for when I just ran out of lift. I had plenty of time to think though, between flights. What sort of planes do I want to fly? How to carry them to the slope with the backpack and bags that I have? What sort of planes would I like to build?
The AHI breaks down, which is why I bought it, though more fiddly to put together on the slope than I imagined, so carried it ready to fly this time. The Lumberjack fits onto the back of my pack no problem, just have to remember I am a wide load!!! Need one or two other somethings...Continue Reading
Posted by HOTMAILcity | Yesterday @ 12:02 PM | 8,142 Views
◄► PART II

The Post .. CHAPTER ONE ..

In May or June, when, though winter is not over and the sea
is still frozen solid (صلب) , the air is clear and one can see (بصر) for miles, the arrival (وصل) of a sled provides a spectacle that goes on for two hours.
Everybody is out to watch (نظر) its progress (صار) , and never Breton sailor
nor Nantucket widow stared (حدَّق) at incoming ship with a gaze more
intense .. (دقَّق النظرَ) ..

For one thing, a sled on the frozen sea is the smallest (صغر)
object in the world, smaller even than a boat seen from the air as
it crosses the ocean. It is microscopic, and I mean by this that it
is not related to anything human. Its movements, its changes of
position, are perceptible only by the half-hour .. (إِدراك / das Erreichen ) .. Its load may be two or three .. (قاس) .. feet high; its length will be, say, fourteen feet: what are such dimensions against a sweep of fifty miles? ..

(to measure / قاس ) take its origin from (foot / ساق) .. ? ..

The Eskimo standing on shore beside you has seen it, of course, long before
you have seen it ..

The Eskimos acquired, by long experience, the capacity to (know /د&#...Continue Reading
Posted by benjamin presten | Yesterday @ 10:54 AM | 8,494 Views
Cessna XMC: A part of the history of the Anderson Greenwood AG-14 was that one of them was bought by Cessna for research. Cessna built the XMC (eXperimental Magic Carpet) to research a light pusher design.

In 1971 the XMC made its first flight. The idea was to replace the Cessna 150 with a pusher design. The XMC used the same O-200 power plant and also seated 2. At the same time Cessna tested their swept wing ideas and they later added a duct around the propellor to test ducted thrust ideas.

The XMC underwent very thorough testing as Cessna used it to test so many other things besides the design itself. They tested CG changes on a swept wing. They tested the response of control surfaces depending on their location. They even tested new construction methods on it. However, after all this testing they found that the XMC design itself wasn’t a winner.

The XMC apparently provided no benefit over the Cessna 150 design and it had some downfalls. The quoted reason for not producing it was that the cabin noise was too high. But another issue Cessna experienced with the design was CG. Because the engine was mounted under the wing, in order for the CG to work the pilots had to be positioned forward of the wing. The issue with that design was that it made the airplane more critical to changes in pilot and passenger weight.

The XMC project was scrapped in 1972 and the airplane was presumably scrapped with it. It certainly never made it into the hands of the public.
Posted by Tazkiller85 | Yesterday @ 05:06 AM | 10,419 Views
Yep Les Amis,
Pour toute la famille ! Une belle découverte ce Go Go Bird EAGLE, on a presque l'impression de contrôler un oiseau réel. Malgré quelques petites améliorations que j'apprécierais, je dois bien avouer qu'il y a eu du travail de conception et réalisation. Le vol est impressionnant de réalité et après quelques minutes, la prise en main est totale et précise. Les matériaux utilisés sont d'excellente qualité, à la vue, au touché et également en terme de durabilité. En bref, j'applaudi des deux ailes ce premier concept novateur et réaliste, mis à la disposition du grand public ! ... Prenez soin de vous et merci à tous pour votre soutien .

Go Go Bird EAGLE - Review Test Démo - Original, Surprenant et bien conçu ! (34 min 7 sec)


NOTATAZ : 17/20 Bon boulot !!!

- Go Go BIRD EAGLE : https://bit.ly/2Td6roG
- Multimètre Stylo (coupon BGcf2ab5 ) : https://bit.ly/2SkCgfq
- HTRC T400 Pro : https://bit.ly/3ttvaSj
- Eachine TX16S HALL : https://bit.ly/3iuyKcW
- Tournevis Electronique ( coupon BGHONEY2110 ) : https://bit.ly/3pLxDXH
- Buzzer autonome VIFLY BEACON : https://bit.ly/3xgwOcc
- Testeur Buzzer Lipo : https://bit.ly/3gkv5LS

- TABLEAU DES PROMOS ET COUPONS 2021 RC et ACCESSOIRES (remis à jour quotidiennement, en utilisant ces liens, vous aidez la chaîne, ) : http://bit.ly/2OiQMPF

- Si Vous voulez aider la chaîne avec un don (tous les dons servent à alimenter les vidéos en produits ou matériel ): https://streamlabs.com/...Continue Reading
Posted by PeteSchug | Yesterday @ 03:28 AM | 11,006 Views
The day I frostbit my fingers

I returned to Wurtsboro Airport for a visit years ago. The first person I recognized was Dick Paggett but I had to ask him his name. One of those, right on the tip of my tongue moments but I couldn’t stand there staring so I asked and as soon as he said his name I stuck out my hand and said Pete Schug.

Dick was still towing, Tony had died of leukemia a few years earlier which bothered me a lot. I had hoped to see him. You never forget the person who taught you to fly, especially someone like Tony who let you discover things. You yearn to try landing in a crosswind and one day he takes you up in a gusty crosswind and the main thing you learn is bladder control. In the following weeks you learn to counter drift with a side slip and keep the plane aligned exactly with the runway. You start to handle the gusts without thinking about it. Then one day you can land the plane smoothly under the same conditions where you originally learned bladder control.

I was driving across the Throgs Neck Bridge around three a.m. and it was very windy. Not many cars at that hour but all were being blown out of their lanes. My car was rocking in the gusts but staying exactly in its lane. My flying buddy made some comment about it and I quietly said, "Crosswind landing mind set." He understood completely.

One of the things Dick Paggett told me was that on Thursday evenings they flew RC on the perpendicular runway. That’s where I learned to fly my...Continue Reading
Posted by Inam ullah | Yesterday @ 02:52 AM | 11,048 Views

Guyz i need help .i built this fighter plane but it when i threw it in air it starts rolling and stuck to ground with nose . someone find out me the correct possition of the battery .i use 2200 mah 3s battery .
Posted by LUV2REV | Jun 11, 2021 @ 06:47 PM | 13,137 Views
Just found this on CL for a couple hundred bucks. Anybody have any experience with one of these? Need engine if anybody has one let me know?
Posted by benjamin presten | Jun 11, 2021 @ 04:51 PM | 13,612 Views
Anderson Greenwood AG-14: Another airplane just like the Howards. Okay maybe not.

The Anderson Greenwood AG-14 was designed by three Boeing Engineers. Ben Anderson, Marvin Greenwood and Lomis Slaughter. Unfortunately Slaughter’s name was not used for obvious brand recognition issues.

The AG-14 may look like a fairly modern design but it actually made its first flights in 1947. Production was in full tilt by 1950. And by full tilt I mean they managed three airplanes that year, and another two in 1953 before stopping altogether.

While the AG-14 looks a bit weird, many of it’s strange features aren’t noticed at first glance. While the airplane’s twin boom design obviously has two vertical fins, only the one on the left actually has a rudder. That rudder also isn’t connected to the nosewheel steering, instead the nosewheel steering is connected to the ailerons so that it can be driven around like a car. The Continental C-90 is mounted directly on the center of gravity and has a 4” shaft extension to put the prop out behind the airplane. Speaking of the prop, it was positioned almost parallel with the rear wheels so that a prop strike incident is almost impossible.

Another fun thing about the AG-14 is that it technically qualifies as LSA and with the flight characteristics which are described as “delightful and easy” by a magazine review, maybe this airplane could have a future if someone put it back into production.

One of the AG-14s had a slight mishap in one...Continue Reading
Posted by Old_Pilot | Jun 11, 2021 @ 01:09 PM | 14,362 Views
I took Dan Sponholz's Bloody Baron and scaled it up to a 36" wing span, and adapted it to the materials and techniques that I normally use to build foamies. The power plant is larger as is the battery, ESC, and servos. Wish me luck.I'll post progress pic's and a flight video if successful.
Posted by old4570 | Jun 11, 2021 @ 07:52 AM | 17,600 Views
UMX Turbo Timber is bound to the Tx16 .

What I like is that you can output telemetry to the screen , and the feature I wanted at a glance was the battery voltage of the 2s in the TT .

I have for now left rates at 100% and set my Expo to 50% on all flight surfaces .
We have another huge weather front to deal with again , but I did fly the TT in the street just to see how it felt .
I liked it , .... But not sure how many days this weather is going to hang around for ..

Last weather front lasted 3 days , actually more like a week . It was 3 days of massive rain and wind .
So really wanting to get out with the TT . This time I have left the TT with full flap . When it was bound to the Qx7 , I had set flaps to 25% and 50% .. This time I will have 50% and 100% flaps ...

100% flaps , oh man ! It flew so slow , I thought it was going to fall out of the sky when I did a turn . It was like watching a replay in slow motion . After my first slow motion turn I was so flabbergasted I flew the TT into a tree .. It spun around like a frisbee and nose dived into the ground . I was flying so slow and so low , I could not even find a scratch on the TT ( That was lucky ) .
With 100% flap , it's just freaky slow . So if you have seen previous video , my full flap was actually 50% flap . There is no video this time , cos it was a spur of the moment thing just after I range checked the TT . Really looking forward to playing with the TT bound to the Tx16 .
Posted by 5546dug | Jun 11, 2021 @ 07:14 AM | 18,118 Views
One the best 4s setups I have used . Eflite sure got it right this time.
Posted by heli-parkflyer | Jun 11, 2021 @ 05:30 AM | 18,855 Views
Check it out

RC101 RC Flybarless Helicopter (7 min 32 sec)

Posted by GBLynden | Jun 10, 2021 @ 11:31 PM | 20,404 Views
Watch the E-flite UMX Night Vapor Loops & Low Light Chaos right now!

E-flite UMX Night Vapor Loops & Low Light Chaos (2 min 8 sec)

Posted by old4570 | Jun 10, 2021 @ 11:19 PM | 20,477 Views
Went out today for a fly with the Tx16 and Volantex Sports Cub 500

Way , and I mean - way too stable ..

It was Uber Smooth .
But not enough control input .
Ailerons were almost non existent ..
Needed all the rudder there was to turn the model .
The modes all worked , but I just lacked control authority . Could be the model .
Also the factory Tx might give more servo travel ? ( Cub 500 )

Hmmm , next model ? Maybe bind the UMX TT .
Anyways , Tx feels just fine .
Walking to the Football Field that handle is super comfortable and I can fit all my fingers inside the grip . ( Tx16 )
I like that a lot .

So no complaints so far for actual use .
To really shake it down , I will need a more responsive model like the TT .
The TT flew out of the box with no trimming required , so this will have to be next .
Posted by Reckless_fpv | Jun 10, 2021 @ 09:43 PM | 20,516 Views
Posted by Reckless_fpv | Jun 10, 2021 @ 04:06 PM | 21,553 Views
Posted by FoamyDM | Jun 10, 2021 @ 04:00 PM | 21,576 Views
Prandtl - D using Dollar Tree Foam Board

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Over the last two years many others have managed creating various forms of this craft as a glider or a 3d printed plane and been successful.

Through the Aviation RC Noob Podcast, Joe and I have chanced to have a great interview with Red Jensen (Episode 25, Episode 26) who was a chief pilot over much of the Prandlt-D project headed by Albion Bowers. As we prepared for the interview, and doing research about the Neil Armstrong Research Center I saw Different versions so I took a moment to create a simple modification of the plane to change the planform, but not the other key elements.

2-sheet -no waste

The new plane is un-wasted sheets of DTFB. cut longways from 8" to 12" from one side. Then cut off a 1/2 strip from both sides. to build a spar. This allows the construction of the wing half.

The important piece to this puzzle. is how to Place the spar, and how to shape the trailing edges of the wing halves. It is important that the inner section functions like a modified Clark Y, and the outer like a Symmetrical wing, with a twist from +8° AoA on the inner section, and it twist to a -2° AoA at the tips.

Spar line

The spar line on the bottom of the wing should be from ##" to ##" at the wingtip

On the top it must be moved back a 1/4" on the wing root and remain at ##" at the wingtip.

Trailing Edge

Outer edges

The trailing edge treatment is also important. the outer half must bevel the edge in 1&...Continue Reading
Posted by FoamyDM | Jun 10, 2021 @ 12:30 PM | 22,320 Views
In this episode Matt and Joe provide a quick update on their projects then continue their conversation with Red Jensen.
We talk in depth about the Prandlt-D and Prandlt-M projects, Internships with NASA and What exactly happens where Red Jensen works in the Sub Scale testing Lab at Neil Armstrong Flight Research Center.

ARCN Ep-26 Special Guest Red Jensen Part-2

Prandt-D Picture