Posted by benjamin presten | Today @ 02:58 PM | 414 Views
In 1929, the Army Air Core was looking into new monoplane observation aircraft from the new American branch of Fokker. Douglas however was supplying most of the observation airplanes at the time and they were eager to maintain that. So Douglas brought a proposal to the Air Core that resulted in the ordering of two new prototypes, the XO-35 and XO-36. The two types only being separated by engine type, one with geared Curtiss Conquerors and the other with drive, both V-12s putting out 600hp. With good initial projected performance, the Army Air Core decided the airplane had good potential for bomber work and requested one be developed as a bomber. The XO-35 was delivered in 1931 and a few months later the XO-36 followed, now redesignated XB-7. The design was simple and elegant, a gull-winged monoplane taildragger with suspended engine nacelles and retractable gear. With the performance desired, 12 more airplanes were ordered. (seven bombers and five observers) The order specified a few mods to the design. The fuselage was to be a few inches longer to adjust the center of gravity, and it was to be produced with smooth skins rather than the corrugated skins of the first two. They would also be fitted with larger fuel systems and higher horsepower Curtiss Conquerers. All twelve of the production models entered service by 1933. However by the time they entered service, even more advanced airplanes were in the works so a larger order were never placed. However they did find their...Continue Reading
Posted by benjamin presten | Today @ 02:55 PM | 425 Views
In the late 1920s the US military was actually participating in sport racing of aircraft. In 1930 the US Navy entered a highly modified version of their Curtiss F6C biplane (last picture) into the Curtiss Marine Trophy race and won it. With their sights set next on the 1930 Tomphson Trophy Race, the airplane was returned to Curtiss for further modification and things got really radical. The fuselage had already been rebuilt with a rounded shape rather than the original boxy shape and the landing gear had been modified to fit sleek wheelpants. But in order to take on the Thompson race, they got even more radical. They ditched the lower wing all together and braced the upper wing with a single outer strut. They removed the radiator under the engine and the wing was turned into a surface radiator. Lastly, the engine was re-cowled and a new spinner was fitted. With all this streamlining work being pulled by a 435hp Curtiss V-12, they hoped to break 250mph with their newly named Curtiss XF6C-6. At the races they were off to a good start, leading the race at 219mph. Sadly however, the pilot (Captain Arthur Page) was overcome by exhaust fumes and crashed. The accident totally destroyed the airplane and the pilot died the next day of his injuries. A tragic end for such a wonderful piece of eye-candy.
Posted by unboxingexp | Today @ 12:09 PM | 700 Views
Well, I m late to the game. But they are pretty cheap these days...
Fatshark HDO 2 (1 min 32 sec)

Posted by GroundControlRC | Today @ 08:08 AM | 1,060 Views


Review - G.T. Power 1S-8S Battery Meter (Nixx, LiPo, LiFE, Lion, LiHv), Discharger, Servo-ESC Tester

Get One Here: G.T. Power 1S-8S Battery Meter, Discharger, Servo Tester
https://www.banggood.com/custlink/vGvyCZMmhJ

Banggood GCRC
https://www.banggood.com/custlink/GmDmQ1nVkO

Here is a link to the Video:
https://www.youtube.com/watch?v=K9Moi28N2tU

I've been looking for a Battery Meter for quite a while.
I wanted one that could also use a 1S LIPO and LIHV LIPOs.
I came across this G.T. Power 1S-8S Battery Meter, Discharger, and Servo Tester that also supports LIHV LIPOs ;-)
Since I already have a G.T. Power Load Meter that I really like I purchased this one.
It works great and now it makes it much easier in the field to test batteries without having to pull out my multimeter.

You Can Help Support Us By Using Our Affiliate Links To The Products Above. A small commission (At No Cost To You) helps us buy more items to review.

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Posted by alex_nikiforov | Today @ 12:33 AM | 1,753 Views
Foxeer Pico Razer 1200TVL 12*12mm Mini FPV Camera CMOS 4:3/16:9 NTSC/PAL 3.8V-16V for RC Racing Drone

Foxeer Pico Razer. Самая маленькая камера в линейке Razer. (8 min 6 sec)


Link: Foxeer Pico Razer
Posted by Jack Crossfire | Yesterday @ 11:13 PM | 1,870 Views
The decision was made to stuff electronics in the latest design. The inductor ended up on the bottom to make more room for the battery. The wires need to be repositioned again to make still more room for the battery.

The eventful run featured fluctuating center values for the throttle. It didn't have enough power to go into the wind. A narrow tire got stuck in a storm drain. The battery cover fell off. Finally, the encoders got knocked out of alignment & a motor started spinning in reverse.

The mane problem is lions are using the speed buttons to go faster, which is bashing it a lot more. The next step would be softer tires.
Posted by FeiJi | Yesterday @ 10:45 PM | 1,917 Views
Sorry, KFm2 as it only has a single step on top.
Bought a few sheets of 8mm EPP foam and built a SuperFly clone (only about 2/3s sheet) based on 24 inch one here: https://www.rcgroups.com/forums/show...light=superfli Go there for dimensions - very nicely laid out.

Ready to maiden, maybe this afternoon. Built one of these years ago and really loved its controllability and fun factor. Also, I have less space to fly in here in my newer location so needed a baseball field size flyer. 230 grams AUW and using a tiny 1806/2400kv motor that I salvaged from a totally useless 800mm wing I finally decided to quite playing with. 800mah 3S lipo. Bamboo spit and a couple of CF spars. Also made control rods out of paper clips and bamboo spits because that's all I had around. Fins are super small but I often fly my wings without any fins at all so used to a little waggle. Cut prop slot too big but oh well, its a throwaway plane. Couple hours work. Maybe laminate it later.
Posted by bill_delong | Yesterday @ 10:11 PM | 1,995 Views
AGFRC has been in business since 2009. I first learned of this brand with this thread over on RCTech: Digital Servos from China when someone linked to the thread on some other random post in late 2019.

The Good:

What drew me into the brand was low pricing to where I could get these servos for $45 each (+free shipping) after my frequent buyer discount from Banggood based out of China. Here was my first purchase on Jan 10, 2020:



I installed the following servos in each respective race class that I was running at the time:

A80BHM --> TEKNO SCT410
A62BLS --> PR Racing 401R ( 13.5T 4WD Buggy on Turf)
A62BLS --> PR Racing 401LW (13.5T 4WD Buggy on Dirt Oval Latemodel)
A62BLS --> PR Racing 401R-T (5.5T 4WD Mini Truggy on Turf/Dirt)

These servos were amazing at the time, super smooth, powerful and fast... by far an amazing deal for only $45 each, I hit the jackpot!!!

Or so it seemed...

The Bad:

Over a 4 month period I stripped the gears on the A62BLS in my Mini Truggy a total of 3 times, fortunately I was able to get replacement gear sets but after shipping it was costing me close to $33 a set for each order, $20 for shipping is just insane!



So my $45 servo had just turned into a $145 servo after the cost for replacement gears, yikes!

It's worth pointing out that it's widely accepted that a 200oz-in servo is recommended for Mini Truggy, here's a screen shot from the TEKNO ET410.2 manual:

...Continue Reading
Posted by oldsneakers | Yesterday @ 08:30 PM | 2,241 Views
This is one method of setting up Crow on a Spektrum AR9350 receiver and a compatible Spektrum radio, DX9, iX12, iX20 and more.

This information came from RCG member simages. He dug thru the long history of this receiver and figured out how to get this to work.



In the AS3X app, set up the AR9350 as a Flaperon wing type and normal tail type.



In the AS3X app, on the Port Assignment page, set Gear to Port 5 & Aux1 to port 7

...Continue Reading
Posted by Planegirl82 | Yesterday @ 08:14 PM | 2,264 Views
Anyone fly in Milwaukee area?
Posted by benjamin presten | Yesterday @ 06:54 PM | 2,672 Views
The Kinner K, K5, B and P Sportsters:
Kinner was started in 1919 producing aircraft engines but in the 1930s they decided they would try their hand at producing airplanes. Their first entry into the civilian light monoplane marked was the Kinner Sportster, a handsome two seat side by side low wing with a tail dragger configuration. They were open cockpit with an optional enclosed canopy. But their most unusual feature was their handily folding wings. They were pulled along by Kinner’s own already popular 5 cylinder radials of increasing size from 100hp to 125hp with post factory modifications up to 160hp. The Sportster was intended to sell to the general public as an attainable light plane, it was priced at $2,490 or around $47K today. With at least 39 built, it was successful enough to whet Kinner’s appetite for airplanes. Today there are several restored Sportsters still flying across the world.

The Kinner B-2 and B-2R Sportwings:
One year after the start of production on their Sportster (see previous post) Kinner began tweaking the design and came up with the Sportwing. The Sportster had a few downfalls to its name. Most of all, it was slow and a bit cumbersome. The Sportwing brought some solutions to this issue. Firstly, it had a shortened wingspan to increase the roll rate and lower the drag. Secondly, it added a nicely faired set of wheelpants to the landing gear so as to reduce the drag of the support struts and wheels. Lastly, some of the Sportwing were built...Continue Reading
Posted by Mad_angler1 | Yesterday @ 05:55 PM | 2,868 Views
In this video I am talking a look at the new UAVCAN Servos from Hitec Technology.

Hitec UAVCAN Servo For Ardupilot & More - Overview & Setup (18 min 5 sec)



The MD70MN-CAN is a multiprotocol metal gear servo designed for model RC application that can be used with both PWM and UAVCAN.


High Resolution 32-bit Programmable Digital Circuit
CAN Bus (2.0A or 2.0B), UAVCAN, RS-485, PWM & TTL Protocol Capability
Magnetic Encoder Position Sensor
Wide Operating Voltage (4.8 ~ 7.4V)
Heavy-Duty, Long Life Motors
IP65 Rated Cases
Customization and Modification Options Available
Custom Connector Options Available

In the video I give an overview of the servo its self as well as show how to set it up with UAVCAN on a Cube Autopilot (Pixhawk 2.1) on Ardupilot using mission planner.



Posted by epasick | Yesterday @ 05:15 PM | 2,979 Views
This is a scratch built aircraft I enjoy building
Posted by Blaze0021 | Yesterday @ 03:13 PM | 3,165 Views
This is the Maiden Flight of my Parkzone Albatros D.Va 1070mm BNF, won from a Private Seller off of eBay and purchased brand new in the box (BNIB).

Parkzone Albatros D.Va WWI 1070mm BNF Maiden Flight (4 min 19 sec)

I will still never forget the time I walked into my local hobby shop eight years ago and saw this model on sale for $149.99. But because I was new to the hobby and only learning the basics with a Hobbyzone Champ at the time, I walked away from this model.

I regretted that decision.. as this model, along with the SE5a was shortly discontinued.

However, things worked out in the end and I managed to find this one again. I don't regret getting this one at all - It is a beautiful WWI flying icon with a rich history behind it. This model flies beautifully scale and is all eye-candy with a lot of presence.. either on the ground or soaring through the air.

Something unique, something special. I like it a lot, and I'm grateful to have found the Parkzone Albatros D.Va again. They definitely don't make them like this anymore.

MODIFICATIONS:
1) Spektrum EFLR310013 Apprentice S AS3X / SAFE RX.
2) Carbon fiber flat spar .057" x .177" x 17.0" embedded in bottom wing.
3) Light detailing applied to plastic engine.
4) Minwax Satin Finish Polycrylic-protected airframe (2 Coats).

SETUP:
1) Transmitter - Spektrum DX8 G2.
2) Battery - Roaring Top 3S 1800mAh 45C Lipo (152 Grams).
3) Center of Gravity - 60mm from leading edge of top wing.
...Continue Reading
Posted by benjamin presten | Yesterday @ 12:29 PM | 3,519 Views
How many retractable gear parasols can you think of? Probably not very many. In 1931 the Army Air Core was looking for a new observer and Curtiss had a unique solution. A monocoque all metal swept wing sesquiplane with a 650hp Wright Cyclone named the YO-40 Raven. The prototype was completed and flown in February of 1932 but it was wrecked shortly thereafter in May of the same year. Back to the drawing board, Curtiss rebuilt it with stronger wings. They also added full canopies as opposed to the open seating for two of the initial version. Nearly satisfied with the new “YO-40A” the Army Air Core ordered a further four of them with a few modifications. Curtiss delivered on this order with four shiny new “O-40Bs” this time with no lower wing. The upper wing, now with retractable slats and flaps, was braced to the landing gear hard points with V style struts. They had also replaced the engine with the newest version of the Wright Cyclone, now making 670hp. In June of 1933 the four flying O-40Bs were delivered to the 1st Observation Squadron. No more O-40s were ordered sadly and the four airplanes were retired and presumably recycled in 1939....Continue Reading
Posted by J0972 | Yesterday @ 11:05 AM | 3,532 Views
Here is an overview video of my 1/24th scale Monster Truck. I will be upgrading it and starting a new build soon. Hit subscribe and turn on notifications if you want to follow the progress.

Micro RC Monster Truck Part 2 (5 min 58 sec)