Posted by 100mph | Sep 22, 2019 @ 08:30 PM | 831 Views
Posted by nh4clo4 | Sep 22, 2019 @ 05:30 PM | 1,054 Views
I havenít posted a blog for quite a while. I will be listing a lot of things for sale soon. I had a a heart attack earlier this year, and just havenít been able to enjoy the hobby any longer. Itís been a chore to get to the field, and havenít enjoyed being there. Iím going to list what is shippable, and try to sell larger items locally.

I will be listing a couple things at a time,
Ed
Posted by davidterrell80 | Sep 22, 2019 @ 04:36 PM | 1,489 Views
Public Safety Small Unmanned Aircraft Systems (sUAS) Free Online Course
Nov. 18 - Dec. 1, 2019


Embry-Riddle Worldwide offers MOOCs (Massive Open Online Course) to anyone with an Internet connection and a desire to learn about aviation. And they are free! Future MOOCs will be announced as scheduled.

This two-week MOOC covers key concepts related to small unmanned aircraft systems (sUAS) as applied to the Public Safety (PS) sector (Law Enforcement, Fire, Search, and Rescue), including basic types, characteristics, applications, and current and future use.

https://worldwide.erau.edu/massive-open-online-courses
Posted by Aeroplayin | Sep 22, 2019 @ 03:42 PM | 1,779 Views
We've been actively analyzing electric power for the past 8 years on the RCG Power Systems for Extreme Flight Fanatics! thread, and I posted this about a month ago to recap some of the mathematical concepts that interrelate propeller specifications and load ratings with motor Kv, voltage, power-in, power-out, torque, and current.

For the benefit of anyone that may come by this blog, a basic understanding of algebra is all that's needed to understand these concepts. Those of us that have posted online calculators understand that the mathematical concepts that relate with each other are as follows:

Concept 1 - Efficiency:

We start off with an assumption about the efficiency of our outrunner motors and go from there. Testing will tell us exactly how efficient each motor is by comparing unloaded RPM/v against RPM/v with a recommended load. This can be affected by the ESC programming settings since it is, after all, the 'speed controller'. But if we test each example with the same controller and settings, and stick with the recommended settings, we should end up with a fair and relative comparison of motor and propeller performance.

As an example of the process of determining the Kv efficiency between loaded and unloaded (KvE), I will use a common 50cc power systems. If we have a 24x10 PJN with a typical 980 to 1180 gram outrunner that has an efficiency difference of 80%, it means that the power we put into the system results in about 80% of that power at the shaft.

In...Continue Reading
Posted by leccyflyer | Sep 22, 2019 @ 03:34 PM | 1,029 Views
Aircraft Name: Pilatus PC-9
Manufacturer/Designer: Seagull
Construction: ARTF balsa and liteply
First Flight: 17/06/2018 at Kerloch
Wing Span: 48"
Wing area:
AUW:
Power type - Electric
Motor:
ESC:Hobbywing Pentium 40 amp
Tank/Battery: 4s1p 4200mah G-Power Lipos
Propeller: 5 blade 10x5?
Receiver: AR6210
Flight Pack: n/a
Servos: n/a
Throws - n/a
Undercarriage - Fixed Tricycle U/c
Accessories: None
Covering: Lightweight printed polyester film
Current status: In service
Posted by leccyflyer | Sep 22, 2019 @ 03:24 PM | 791 Views
Aircraft Name: Spitfire Mk IX
Manufacturer/Designer: Balsacraft
Construction: Built up CNC balsa and liteply
First Flight: 7/7/18 - crashed on take off
Wing Span: 48"
Wing area:
AUW:
Power type - Electric
Motor:
ESC:
Tank/Battery: 3s1p 3300mah G-Power Lipos
Propeller:
Receiver: FRSKY V8-FR-II
Flight Pack: n/a
Servos: n/a
Throws - n/a
Undercarriage - Electric retracts
Accessories: None
Covering: Tissue and dope, painted camouflage
Current status: In workshop for repair
Posted by leccyflyer | Sep 22, 2019 @ 03:13 PM | 761 Views
Aircraft Name: Mavic Pro
Manufacturer/Designer: DJI
Construction: Ready built, plastic and alloy
First Flight: -5/8/17 at home
Wing Span:
Wing area:
AUW:
Power type - Electric
Motor:
ESC: Built in
Tank/Battery: 3s1p 3840mah Mavic intelligent Lipo
Propeller:
Receiver:
Flight Pack: n/a
Servos: n/a
Throws - n/a
Undercarriage - None
Accessories: Charger, transmitter/controller/carrying case
Covering: None
Current status: In service
Posted by leccyflyer | Sep 22, 2019 @ 03:09 PM | 749 Views
Aircraft Name: Spy Hawk
Manufacturer/Designer: Hubsan
Construction: Foam,
First Flight: -21/05/17 at home
Wing Span: 1000mm
Wing area:
AUW:
Power type - Electric
Motor: Hubsan Hs301s
ESC: Built in
Tank/Battery: 2s1p450mah Hubsan Lipo
Propeller:
Receiver: 2.5ghz built in 5/8ghz FPV TX
Flight Pack: n/a
Servos: built in
Throws - Stock
Undercarriage - None
Accessories: 5.8ghz FPV receiver built into transmitter, colour screen
Covering: None - bare foam
Current status: In service
Posted by leccyflyer | Sep 22, 2019 @ 02:10 PM | 793 Views
Aircraft Name: DeHavilland DH98 Mosquito Mk VI UMX
Manufacturer/Designer: Parkzone
Construction: Foam, RTF/BNF
First Flight: -8/09/2018 at Lyne of Skene
Wing Span: 20.5"
Wing area:
AUW: 2.6oz
Power type - Electric
Motor: 2x8.5mm coreless brushed
ESC: Integrated RX/ESC/Servos
Tank/Battery: 1s1p 250mah Eflite Lipo
Propeller: 2x contrarotating 110x80mm 3 blade
Receiver: AR6400T 6-Channel DSM2
Flight Pack: n/a
Servos: Spektrum AS2000L ultra micro aileron servos
Throws - Stock
Undercarriage - Fixed , main wheels -removed for flight
Accessories: None
Covering: Painted foam
Current status: In service
Posted by CGordon | Sep 22, 2019 @ 10:20 AM | 611 Views
Proof of concept for a carbon fiber space frame for a 24" model continues. Made of a mix of 1K tow and .010" and 0.030" commercial rod.

I will be adding upper/lower diagonals to this but wanted to capture the interesting movement of the truss in torsion.

Quite a bit more construction and reinforcement will be added but it just under 1g currently.

Carbon Fiber Space Frame Fuselage (0 min 17 sec)

Posted by Drinkes | Sep 22, 2019 @ 07:12 AM | 870 Views
My next DIY FPV plane:
- Wingspan 1700mm
- С3536 1200kv 600w Motor
- 50a 6S ESC
- APC 11x7 Prop
- Emax ES09MA Metal Gear Servos
- 1700g flight weight with 4S 2P 6000ma 400gr battery.

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Description:

Disassembled for transportation.
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Description:

Building centre wing section.
...Continue Reading
Posted by nigelsheffield | Sep 22, 2019 @ 01:57 AM | 1,403 Views
Bit random BUT very relevant to my fpv quad flying as it will allow me to cheaply and easily get out and about further afield to fly my fpv quads which I can simply chuck in a rucksack and effortlessly explore the Yorkshire area with that electric assist to help out up the hills ( which are considerably steel and plentiful in Yorkshire lol )

$500 Fiido d3s electric"folding" bike ebike with Shimano gear and disc brakes (7 min 8 sec)


My affiliate link for this bike https://bit.ly/2kUofEc

Coupon code to buy it for $510 BGFDD3SEU

Affiliate link for all ebikes etc at banggood. https://bit.ly/2kX2lQH

Coupon for the d2s. BGFDD2SEU

I will make some videos of the rides too when I get an idea of where to best ones are and can do them without stopping every 2 minutes to figure out where I'm going lol.
Yesterday I did 30 miles on it mostly on the wonders of wakefield cycle route which was meant for mountain bikes but this managed it ok and I only used the power for the hills and when I got tired , still had 4 out of 5 bars of power left when I got home!

It has a range of pure power to about about 15 miles but with pedaling it's looking like I could go for as long as I want just use the power to take the pain out of the hills.
Has proper 6 speed Shimano gears and disc brakes and though the wheels are small they are wide decent tyres with good grip and strong enough to handle the rough ground and pot holes we have around here.

I'm 5ft 10 and it is ok for me to ride size wise and of course goes much smaller and also folds down a bit to fit in a car but doesn't fold in half which is good and bad, good in that it makes it stronger but bad in that it won't fold as small.
A couple of pics from my ride out.
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Description:

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Posted by 100mph | Sep 21, 2019 @ 11:30 PM | 665 Views
First attempt and making a night flyer and I think it is a success! Not only does it work well but it also looks very cool and catches eyes. Motor is a 29 gram 1000kv on a 3 cell, 5&9 gram servos, 10 amp esc, 12v LEDs red white and blue. And a 2 or 3 cell to run the lights
Captain America Shield Nutball (0 min 25 sec)

Posted by joeumo2000 | Sep 21, 2019 @ 07:03 PM | 591 Views
I have the R9 and have bound using the 9-16 with telem. I am using sbus to my vector. However vector will not allow flaps so I am trying to hook my flaps to channel 7&8 via pwm. The servos are getting power but they will not respond to me switch. I had the same setup with the R8 and it worked. I bound the R9 over the R8. Any ideas?
Posted by unboxingexp | Sep 21, 2019 @ 11:24 AM | 925 Views
Having fun in a vineyard with Happymodel's new Larva X. Footage was recorded on the internal DVR of the Diamond VTX. I'm still a nooby, but I'm improving fast :-)

https://www.banggood.com/custlink/G3mGO7HyTV

Larva X - freestyle in the vineyard (1 min 27 sec)

Posted by GroundControlRC | Sep 21, 2019 @ 09:19 AM | 1,004 Views


Here is a link to the Video:
https://www.youtube.com/watch?v=8647NpO9uc8

I was going to wait until the next episode of "The Pilot's Lounge" to post this information but thought I should post it while it's still fresh.

I have used the SkyRC D100 V1 Balance Charger for approx. 3 years now.
It has been a fantastic charger ;-)
So why did I get the V2 Charger?
Well, I have used my V1 a lot for the past 3 years and now the Stop Button is getting a bit problematic.
I have to depress the Stop Button in just the right spot to get it to actuate.
I suspect the Printed Circuit Board is worn under that button.
After contacting and getting a reply on the second email I sent to SkyRC I was told they had no spare printed circuit boards.
I suspect there are no spare parts for these chargers at all, so keep that in mind.

They are fantastic chargers and I like then a lot and will most likely be looking for another SkyRC Charger in the future when need arises.

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

Here is a link to the Charger:

SKYRC D100 V2 AC DC Dual Balance Charger Discharger Power Supply
https://www.banggood.com/SKYRC-D100-...47791920140372

Here are links to Charging Cables & Adapters:

12AWG XT30/XT60/XT90 Plug to 4.0 Banana Plug Silicone Charging Cable for B6 AC Balance Charger
https://www.banggood.com/12AWG-XT30X...47791920140372

Multifunction Balance Charging Cable XT60 XT90 T Plug EC5 JST JR FUTABA Plug Adapter
https://www.banggood.com/Multifuncti...47791920140372

XT60/XT30/Fatshark/JST Plug Charger Cable XT60 Input for Battery Charger
https://www.banggood.com/XT60XT30Fat...47791920140372


See you in the Air!

Build, Fly, Crash, Repair, Rinse & Repeat!

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https://www.youtube.com/c/GroundControlRC
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