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Old Mar 19, 2015, 12:38 PM
cheapskate extroardinairé
United States, CA, Marin
Joined Jul 2011
1,106 Posts
Quote:
Originally Posted by Blueberry52 View Post
So I was trying to come up with a fvp platform and I think this will do nicely , going to have a 60inch WS , twin motors mounted high on wing ,fuse is 40in and made of foamboard wing will be foamboard also.wing in picture just a stand in for mock up. This is my first pure fvp and suggestions are welcome
love foamboard, a while ago I used it to make two 90" motorgliders that I used for fpv, and they flew beautifully. the first had individually operated ailerons and flaps for wing mixes and would thermal easily even carrying 4 2200mah 3s batts, and with a folding 13x6 prop on the dt750 motor it would fly for over four hours if you could catch a couple of thermals, or about an hour and a half in dead air. second was much lighter and floatier, but with more drag due to a thick symmetrical aerofoil. flew for an hour on two 2200s and was incredibly aerobatic, and flew like it was on rails. it died when I snapped a wing pulling out of a dive, but I still have the heavy model and fly it from time to time. I have a post about the two somewhere in this thread, probably a couple hundred pages back at this point.

I'd recommend doing the wing similarly to the experimentalairlines armin style, but make the spar the way flitetest do (two layers of foamboard, with the paper running vertically so it won't bend.)
also, make sure to brush minwax into the paper! if you don't then the first time you land on wet grass you'll screw up your fuse.
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Old Mar 20, 2015, 07:53 AM
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Joined Mar 2015
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I have made wing its armin type has a forward hardwood spare and rear cf spare, wing has flaps and alirons now I'm working on motor mounts
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Old Mar 20, 2015, 09:25 AM
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Russia, Moscow, g. Moskva
Joined Mar 2005
3,570 Posts
Quote:
Originally Posted by bikerboy_id View Post
That is a quadrifilar helical antenna
Yes! it QHA

http://jcoppens.com/ant/qfh/index.en.php
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Old Mar 20, 2015, 02:48 PM
Registered User
United States, MS, Gulfport
Joined Jan 2013
28 Posts
A Quadrifilar antenna? How does it perform? I like to fly right above myself, and I'm usually right in the Fresnel zone under the antenna (Circular polarized 5.8 FatShark)
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Old Mar 20, 2015, 07:44 PM
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United States, CA, Marine Corps Base Camp Pendleton
Joined Jan 2013
577 Posts
Quote:
Originally Posted by adamh1281 View Post
A Quadrifilar antenna? How does it perform? I like to fly right above myself, and I'm usually right in the Fresnel zone under the antenna (Circular polarized 5.8 FatShark)
Not sure for our purposes but I don't see why it wouldn't be great especially compared to stocks. Only thing I've seen these used in are weather balloon radio sonds (the little transmitter that the balloons are meant to carry)
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Old Mar 21, 2015, 08:36 AM
Have a nice day! Kristjan
kristjane's Avatar
Slovenia, Novo mesto, Šentjernej
Joined Jan 2006
907 Posts
Quote:
Originally Posted by kristjane View Post
My FPV plane. 2180mm wingspan, 2250g rtf with 2700mAh 6S lipo, RVOSD V5.1, 3D blackbird FPV camera.
Here is short video from maiden flight
Queen Bee Maiden Flight (1 min 56 sec)

Next time it will be in FPV mode.
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Old Mar 21, 2015, 09:24 AM
RC Guy Having Fun!
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Joined Apr 2010
498 Posts
Very stable and smooth! Should be an excellent FPV platform
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Old Mar 21, 2015, 03:29 PM
Have a nice day! Kristjan
kristjane's Avatar
Slovenia, Novo mesto, Šentjernej
Joined Jan 2006
907 Posts
Quote:
Originally Posted by Aeronut41 View Post
Very stable and smooth! Should be an excellent FPV platform
That was my goal.
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Old Mar 21, 2015, 04:31 PM
Registered User
Canada, QC, Montreal
Joined Oct 2008
89 Posts
Hi gents
im looking for an EPP cutter pro or private in Canada or USA to realize some projects.
Before to show you the maiden flight, i show you the idea




thanks
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Old Mar 22, 2015, 11:18 AM
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Joined Sep 2014
67 Posts
Introducing the Gemini Version 2

SPECIFICATIONS:
WINGSPAN: 3200MM 126 INCHES
WING ASPECT RATIO: 10.77 / 1
​AIRFOIL: HIGH LIFT / NON CRITICAL TYPE MAX CO-EFFECIENT OF LIFT: 1.5
WING AREA: 96,000 CM SQ. OR 1488 INCHES SQ.
AIRFRAME STRUCTURE APPROX WEIGHT: 4 LBS, 9 OZ
EMPTY WEIGHT: 7 LBS
MINIMUM FLYING WEIGHT: 15 LBS / 6.8 KILOS
MAXIMUM GROSS WEIGHT RECOMMENDED: 20.75 LBS / 9.4 KILOS
WING LOADING: 23-32 OZ. -SQ. FT - 71-98 SQ. D.M.
FLIGHT DURATION : APPROX. 3 HRS WITH PAYLOAD
RANGE: AT LEAST 12 KM DISTANCE WITH L.R.S.
DISTANCE: APPROX 120 KM LINEAR WITH PAYLOAD
CRUISING SPEED: 40-70 KM PER HR
STALL SPEED AT MAX GROSS WEIGHT: 22 MPH / 35.4 KM PER HR
CIELING: UNKNOWN, BUT VERY HIGH. 20,000FT +
BEST LOITER SPEED: 42 KM PER HR
BATTERY CAPACITY 50,000MAH 3 CELL LITHIUM POLYMER
AMP DRAW AT 42 KM PER HR: 13 -17 AMPS DEPENDING ON PAYLOAD/BATT.
RECOMMENDED POWER: 2X E-FLITE POWER 15 BRUSHLESS ELECTRIC
RECOMMENDED PROPS: 13.5 X 8 APC THIN ELECTRIC 2 BLADE
RECOMMENDED PROP CONFIGURATION: COUNTER/ROTATING INWARDS
RECOMMENDED SPEED CONTROLLERS: PHOENIX EDGE 50 AMP +
RECOMMENDED SERVOS: HS 225 METAL GEAR TYPE FROM HITEC
FLAPS: DUE TO HIGH LIFT AIRFOIL, NONE ARE NEEDED

FEATURES:
~2 SWAPPABLE PAYLOAD BAYS, 1 LARGE(FOR 2 COMPACT DSLR'S) 1 SMALL FOR CANDY DROP/ OBSERVER CAM/ETC. (BOTH HAVE UNOBSTRUCTED DOWNWARD VIEW OF THE GROUND FOR MAPPING MISSIONS)
~MODULAR 6 PIECE DESIGN - FITS IN THE TRUNK OF A SMALL CAR
~CAN BE ASSEMBLED IN THE FIELD IN ABOUT 10 MINUTES
~EASY TO FLY AND STABLE (EASIER TO FLY THAN MOST TRAINERS)
~LOW PILOT / AUTOPILOT WORK-LOAD DUE TO STABLE DESIGN
~EASY TO BUILD AND REPAIR WITH COMMON HOBBY MATERIALS
~ ROBUST DESIGN IDEAL FOR COMMERCIAL APPLICATIONS
~CAN USE HOBBY GRADE ELECTRONICS
~DESIGN IS SIMPLE, AND LENDS ITSELF TO MODIFICATIONS, AND MULTI-MISSION CONFIGURABLE PAYLOADS
~HARD POINTS ON THE WINGS ALLOW FOR UP TO 4 DIFFERENT PAYLOADS TO BE CARRIED AT THE SAME TIME
~OVERALL LAYOUT IS IDEAL FOR KEEPING SENSITIVE RECIEVERS FAR AWAY FROM THE NOISE PRODUCED BY VIDEO TRANSMITTERS.
~THE COMBINATION OF LOW COST, SIMPLE CONSTRUCTION, LONG RANGE, ENDURANCE, AND WEIGHT LIFTING POTENTIAL ARE UNBEATABLE IN THE WORLD OF SMALL UAV'S!

LASER CUT KITS NOW AVAILABLE!
SEND AN EMAIL TO MY GOOD FRIEND WAYNE FOR PRICES, AND AVAILABILITY OF WING, AND FUSELAGE KITS!
flyingsquirrelmodels@gmail.com

How to get Started Building Your Very Own Gemini Version 2 : easy as 123...

1: Order the Gemini Version 2 PLANS PACKAGE at bearospaceindustries.com (arrives within 24 hrs) Have the appropriate PDF plans printed at your local office supply store in original size. (Plans for the Scratch build version, and kit version are included in the package, depending which you choose to build, along with parts placement diagrams, Tips for setup, and flying, and step-by-step build instructions).

2: Send an EMAIL to Wayne about Pricing and Availability of his LASER CUT KITS: flyingsquirrelmodels@gmail.com

3: Source the remaining hardware online, or from your local Hobby Store! ​
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Old Mar 25, 2015, 06:14 PM
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Artful Owl's Avatar
New Zealand, Canterbury, Christchurch
Joined Dec 2011
613 Posts
Quote:
Originally Posted by Blueberry52 View Post
I have made wing its armin type has a forward hardwood spare and rear cf spare, wing has flaps and alirons now I'm working on motor mounts
Cool design looks to have a low wing loading. Are there flaps? kind of looks like it the photo.
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Old Mar 29, 2015, 10:23 AM
Certified Power Juicer
Jack_LaLanne's Avatar
Germany, Berlin
Joined Feb 2009
1,052 Posts
..was airborne before but had no FPV, telemetry
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Old Mar 29, 2015, 05:22 PM
Registered User
Joined Mar 2015
7 Posts
Yes she has flap just waiting on more parts to come.......I'll have to order smaller props they r 10-5 I'm thinking 9-5 also gotta make skid of some type to keep props little higher for those belly landings
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Old Mar 29, 2015, 10:23 PM
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Joined Oct 2011
581 Posts
Home made WW-11 Glider, back from grave after a deadly crash, just to share PG2 Waco WW-II is back again, tuning up for a LR flight soon, I hope.

FPV PG2 WACO Frankie Back Again (3 min 53 sec)
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