Posted by kpwink | Jun 12, 2019 @ 02:15 PM | 675 Views
My Sportsman is paired with a Spektrum DX6. Flying off grass, so I removed the gear, now I have a Cessna 210. Great looking in the air.
--EXCEPT: GPS has been an ongoing issue for a long time. Lucky to get the plane down several times. It flew off with wings wobbling twice.

I have been told that I can unplug the GPS but Horizon Hobbie says NO. Has anyone removed the Receiver and replaced it with a satisfactory
unit with Stabilization? Thanks, kpwink
Posted by valhumbert | Jun 12, 2019 @ 07:11 AM | 740 Views
hi there ,

am new to this group , am passionated bye the movie Porco rosso Miyazaki, i made two sea plane , inspire from the movie and a italien Aermacchi beautiful sea plane , the first plane is three channel sea plane, i salvage parts from a hobbyzone parks flyer , this plane is inspire from the movie and a Macchi M33. doesn't fly at all .... they are scratch built plane with no plans so no high precision , and the second plane is inspire bye my design and a MC-72 and a M67 so let me know you guys think ?...Continue Reading
Posted by wattechighland | Jun 12, 2019 @ 06:24 AM | 1,060 Views
2018.12.24 (Mon)
WTCの上下を仮留めで接着した。接合部の補強は後で内側から行う。
バラストタンクの大きさについては案が無かったので、搭載物の邪魔にならない程度に
なるべく大きくしてみようかと。
タンク満タンで沈んでしまうのなら、まずはタンク内上部に浮力体を入れて、バラストタンクの
容量を減らしつつ浮力を確保する。
そしてバランス取りに進む。

とりあえずカットラインを引いてみた。

艦全体でみるとバラストタンクはだいたい中央で、WTC単体では少し後ろ寄り。
WTC後方には浮力体を積むスペースはあるので、バランスは取れそう。

備忘録
カットする前に考えてみた。
バラストタンクは空か満タンかのどちらかで、中間はない。
満タンで、ピストンバラスト中間位置がサスペンド。
満タンで、ピストンバラストを動かすことで浮力の増減。
バラストタンク排水で喫水線がどうなるかは分からないが、なるべく下げたい。←タンク容量大
カットラインを引いたもののフルバラストで浮力が足りな過ぎれば、タンク内への浮力体追加の
作業が必要で面倒。内部構造物や空気の流れも考慮しなくてはいけない。
そもそも適正なバラストタンクの大きさは、作る前に決められるのか。

バラストタンク満タンでピストンバラスト中間位置でサスペンド、とすると、その時の
潜水艦の体積(水が入っている部分は除く)と潜水艦の重量を同じ数字にすれば良いのではないか な。
比重が1になるので浮きも沈みもしない。
各体積も各重量も単体で測って合算できるが、ロールバランスを取るための錘がどのくらい必要か が
分からない。
童友社のUボートをポンプバラストで作った時は100g以上を底に入れてあるが、あれは浮力調整であって、 ロールバランス取りのためではない。元々は単2電池3本とキールに30g弱とかなり重いが、1軸のスクリュ ー
の逆トルクでロールしやすいから。
伊19は2軸逆回転なので静的ロールを考えればいい。
とりあえず現状でわかる部分だけ計測してみよう。

2018.12.26 (Wed)
夕べ計測までしてみた。
長さが足りないが、ハルが入るプラスチックの筒があったので、瓶で延長して計測水槽を作る。
各所体積と重量を計ってみた。
方法は計測物を水没させて水のラインをマークし、測定物を取り出して秤に載せ、
マークまで水を入れて重量を計る。水1㏄=1gとして、単位は㏄で。

司令塔 5㏄ 5g
ハル上側 46㏄ 47g
ハル下側 69㏄ 70g
WTC 360㏄ 67g
メカ類 0㏄ 67g
バッテリー 0㏄ 31g
隔壁(WTCに含む) 0㏄ 10g?
バランス用の錘(WTC内なら) 0㏄ 100g?
チェックバルブ、エアベントチューブ、スラスターポンプ(メカ類に重量込み)、配線用配管、
ピストンバラストのバラストタンク内への入り込み(メカ類に重量込み)、モーター(メカ類に重 量込み) 
15㏄? 15g?

?マークが入っているので信頼度は無い。
計算してみると、495cc 412g 
495-412=83
バラストタンク容量が83㏄と出ましたが、錘の増減、特に増加では簡単に重量超過になるね。
WTCの上と前後に少しとスペースがあるので、浮力体は追加できるし、タンク内に浮力体追加も
出来るはず。
このあいだWTCにマーキングしたカットラインで、内蔵物の体積を差し引きすると80㏄くらい に
なりそうなんですが
なんか、無理やり数字合わせした感が強くて、意味ない気がする。
でも現在のマーク位置よりバラストタンクを大きくしたらアウトだろうね。

2019.01.11 (Fri)
前に引いたカットラインはタンクが若干後方に位置するのと、重量比では浮力が足りなくなる
可能性があるので、後ろ側のカットラインを10㎜前にずらした。
バッテリーハッチより前は少しカットする予定。
年末年始は放置してましたが、これで製作開始しよう。
Posted by Tazkiller85 | Jun 12, 2019 @ 05:11 AM | 1,308 Views
Yep Les Amis,
Plus c'est long, Plus c'est Bon ... lol . Je ne regrette vraiment pas les 4 mois d'attente ! Quel bonheur ce FIMI X8 SE ... Le déballage, la découverte, la mise en route, les mises à jour et enfin le premier décollage, tout se fait très facilement, donc bravo XIAOMI encore une fois ! La finition est très propre et les performances de vol ont l'air d'être au rendez vous, je n'ai fais qu'un vol découverte et déjà j'ai pu ressentir la fiabilité de cet appareil . C'est simple, je pense que même si seulement la moitié de ses fonctions étaient efficaces, il vaudrait déjà son prix . J'ai maintenant hâte de découvrir toutes ses possibilités, de vol et de prise de vue . Si vous cherchez un appareil de prise de vue et que votre budget le permet, ne passez surtout pas à côté de ce "Joujou" pour adultes ! Bon Film à Tous ... Et Bon Vol

Xiaomi FIMI X8 SE - 1er Test en vol - Les premières impressions sont ultra positives !!! (36 min 54 sec)


NOTATAZ : 19/20 Un avant goût du bonheur !!! lol

Niveau : Débutants et Confirmés
Les + : Puissant et Souple, Réactif, Précis, Très bonne autonomie, Très Stable, Excellente qualité d'image, Nombreux modes de vol ...
Les - : à voir dans les prochains tests ...

Les produits présentés sont visibles ici (en cliquant sur ces liens vous soutenez ma chaîne) Merci à vous :

- FIMI X8 SE 403,08€ ( COUPON BGFIMIX8SE10 ) jusqu'au 30/6/2019 : http://bit.ly/2GU7Yr3
- Accessoires FIMI X8 SE : http://...Continue Reading
Posted by rcheli168 | Jun 12, 2019 @ 04:38 AM | 835 Views
SKYRC GSM-015 GNSS GPS Speed Mete High Precision GPS Speed Meter
Features1.Measure Top Speed, Average Speed, and Top Altitude;
2.Concurrent reception of GPS & GLONASS;
3.GNSS Coordinator;
4.Update frequency up to 10Hz;
5.Built-in 1M flash (recording time: 2 hours);
6.UTC timestamp logged for each track point;
7.Built-in rechargeable, LiPo battery 200mAh (Operating time: 150
minutes);
8.Switch between Metric and Imperial system of Measurement;
9.GNSS LOGGER software for device management and data logging
on Bing Maps;
10.Firmware upgradeable.
Product DetailsConcurrent reception of GPS & GLONASS
Receiver: L1, 1575.42 MHZ
Update frequency: 10 Hz.
Antenna type: Built-in
Satellite signal reception sensitivity: -167dBm
Dimensions: 65.7X39.6X20.8mm
Weight: 45g

Operating temperature: 0℃ to 40℃
Storage temperature: -10℃ to 70℃
Operating humidety: 5% to 90%
Item Packing SKYRC GSM-015 GNSS Speed Meter x 1
Posted by Mariozhou | Jun 11, 2019 @ 09:35 PM | 813 Views
GIVEAWAY
Hello we are battery & charger manufacturer in China, we want to send our batteries to you for test, anyone is able to get giveaways from us on amazon (USA,UK,Canada,Germany,France,Japan).
If there is something wrong with the products, we will send replacement as soon as possible, please rate the products if you are satisfied.

Welcome to our group on facebook, https://www.facebook.com/groups/356972995022612/
More products will come soon, like charger, connectors converter, toys, battery bag etc.

Thanks for looking, please contact me for details.

Lipo batteries currently we stock:
2S 3000mAh 40C hard pack with T Dean
2S 4000mAh 40C hard pack with T Dean
2S 5000mAh 40C hard pack with T Dean
2S 5200mAh 40C hard pack with T Dean
2S 6000mAh 60C hard pack with 4mm Bullet
3S 5500mAh 40C hard pack with T Dean
4S 4000mAh 40C hard pack with T Dean

3S 1500mAh 80C soft pack with XT60
3S 2200mAh 40C soft pack with XT60
3S 2800mAh 40C soft pack with T Dean
4S 1500mAh 80C soft pack with XT60
4S 1800mAh 80C soft pack with XT60
Posted by Carmen Chen | Jun 11, 2019 @ 09:14 PM | 997 Views
Feature:
1. ABS engineering material is molded from the main body of the hull
2. Fixed speed driving
The Fixed speed driving function is integrated into controller, so that the bait boat can go straight at a constant speed, and the operation is simple, saving time and labor;
3. Yaw automatic correction
It has an automatic balance adjustment system, which can effectively control the driving direction of the boat and keep driving straightto avoid excessive yaw due to wind and waves;
4. Long distance strong signal receiving system
Remote controller can be achieved the signal without blocking in the range of 400-500 meters, without fear of signal interference;
5. Double motor and three blades propeller design
The boat features a powerful dual-motor design that provides sufficient power, and is equipped with a three-bladed propeller to increase the pushing power in the water for better driving speed and experience.
6. Independent double bait silo, hook and line attach design
The independent double baiting silo design can support 1.5 kg loading, and can be controlled at a fixed point to throw the bait. At the same time, the side of the bait box is equipped with a hole, which can attach the hook and line .That can prevent the fishing line from being entangled.
7. Waterproof grass double motor design
Powerful dual-motor design with waterproof cover design to prevent interference from propellers.
8. Low battery warning
Different battery levels will be reminded by the...Continue Reading
Posted by Wingmanrc93 | Jun 11, 2019 @ 08:35 PM | 935 Views
Started off as a HK500GT, well after the new kit with all new components ( 3 Spectrum H5010 cyclics, YEP 80amp esc, Typhoon 500 , Futaba 401/S9254 . 2 x 3s 2800mah lipo 35C
AKA -> FRUIT LOOPS
Posted by AtTheCross | Jun 11, 2019 @ 06:00 PM | 832 Views
So I sold all my heli, plane, drone and FPV stuff to get into cycling about 7 years ago. Sill heavy into cycling (yeah another expensive hobby) but I'm getting a hip replacement and I'll be off the bike for a while.

So I bought a radio (Jumper T12, before knowing about the OpenTx feud) and a gasser plane (Slick 540). Apparently I have 3 planes stored at a buddy's house, and a guy at the field gave me a couple hanger queens (I also bought the gasser from him).

So I'm well on my way to getting back, even though my surgery is SEVERAL months out.

The pricing on everything is AMAZING compared to when I got out, entry level goggles $40???? No such thing 5 years ago!!

The learning curve is steep though, lol
Posted by Reckless_fpv | Jun 11, 2019 @ 12:32 PM | 911 Views
Posted by Reckless_fpv | Jun 11, 2019 @ 12:31 PM | 898 Views
metal head fpv freestyle (6 min 31 sec)

Posted by scousethief | Jun 11, 2019 @ 08:59 AM | 2,844 Views
https://www.banggood.com/custlink/mGmv5JSGdg LINK





ZOHD Orbit NEON: Presentation video (5 min 20 sec)


Order Price: $139.99

Overview:
The 900mm ZOHD Orbit has been around for a while. Her wonderful stability in flight combined with a second to none portability and innovative assembly system makes her one of the most desirable airframes for any FPV lover: Hundreds of wonderful reviews online testify about this fact.

Of course, we could have just revamp her under our very popular MKII format, make it heavier, larger, more complicated to setup… Instead of all of that, we went the other way around: This wing is already tons of fun, how can we take it to the next level, without compromising the fun factor?

Doing it at night!

ZOHD Orbit Neon is the world first snap-n-fly portable FPV wing with built-in LED for night flying. It is easy to hand launch and fly super stable, the Orbit wing is very convenient to carry with because the detachable main wing can be assembled easily by plugs, meanwhile the new crash absorption system will save the plane even in a hard crash. The built-in servo structure makes the airfoil more aerodynamic and avoid damage even in a crash.

With ZOHD Orbit Neon you can have countless ours of fun. Just picture this: Turning off the LED system, will give you a super capable FPV wing, to fulfill all your expectations in first person view action. Now the sun is going down? No Problem! Turn on...Continue Reading
Posted by GroundControlRC | Jun 11, 2019 @ 08:33 AM | 949 Views
Test Flight #3 - Volantex Super Cub Flaperons - It's all Good ;-)



Here is a link to the Video:
https://www.youtube.com/watch?v=056fU_dPfpA

Time to test the Super Cub MOD we performed by replacing the single 9g Servo with two 4.4g Servos and programming Flaperons.
After needing some significant adjustment and repair of the Landing Gear it's ready for Takeoff ;-)

The amount of Flaps I have is 10mm from the top of the Aileron to the top of the Wing.
The amount of Up Elevator Trim is 3mm.

Here is a link to Test Flight #2 that didn't end well:
https://www.youtube.com/watch?v=hwVViweVtBM

Here is a link to the Tutorial for installing the Servos and Linkages:
https://www.youtube.com/watch?v=F_0_ud1xBtk

Here is a link to the Plane:
Upgraded: New batch comes with Integrated flight control with self-stabilization function

Volantex 2.4G 4CH V765-2 765-2 Super Cub 750mm Sport Park Flyer RTF
https://www.banggood.com/Volantex-2_...47791920140372

Here is a link to the 4.4g Servos used in the Tutorial:

Turnigy™ TGY-1440A Analog Servo 20T (V2) 0.8kg / 0.10sec / 4.4g
https://hobbyking.com/en_us/turnigyt...asc=1250722527


See you in the Air!

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

See Us On Youtube | Patreon | RCGroups | Facebook

https://www.youtube.com/c/GroundControlRC
https://www.patreon.com/groundcontrolrc
https://www.rcgroups.com/forums/member.php?u=754189
https://www.facebook.com/pg/Ground-C...3132721/posts/
Posted by nagas | Jun 11, 2019 @ 05:46 AM | 1,050 Views
This Tilt-Engine aircraft was a collaboration between RickP and myself.

Available in two versions:Canadian Force Rescue and US Marine..

Derived from a model created by Helijah and posted on Sketchfab.

Further details to follow.

The model can be downloaded here.
Posted by Bill M - RC | Jun 11, 2019 @ 04:49 AM | 1,505 Views
Hi fellow rc pilots & rc enthusiasts

NEW MJX Bugs 4W B4W Review - 5G WIFI FPV GPS Foldable RC Drone with 2K Camera on a Single-axis Gimbal. This MJX Bugs 4W review includes Flight, Functions, Features, WiFi FPV Range, Camera, RTH, Flight time, Optical & Ultrasonic sensor tests.

You can get this NEW MJX Bugs 4W B4W 2K 5G WIFI FPV GPS Foldable RC Drone here now: http://bit.ly/2I0JQDD

Get this NEW MJX Bugs 4W B4W 2K 5G WIFI FPV GPS Brushless Foldable RC Drone with one battery for only $169.99 using coupon code: KSVARPFI here now: http://bit.ly/2F4iDOw

7th Anniversary Promotion Sale on here now: http://bit.ly/2IG9wod


MJX Bugs 4W B4W Review Part II - Flight, Functions, Features, FPV Range & Camera tests (25 min 24 sec)


2k [email protected] video clip here:
MJX Bugs 4W B4W review - [email protected] raw video sd card capture (3 min 5 sec)
...Continue Reading
Posted by UnknownForces RC | Jun 11, 2019 @ 04:45 AM | 873 Views
Testing video of Growler X1 1/6 2WD electric desert buggy (8S) (1 min 34 sec)


Testing videos of our “GX1 buggy” , guess what happened while it was falling from a 7 meter high floor.