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Stretch1's blog
Posted by Stretch1 | May 07, 2014 @ 02:38 AM | 3,820 Views
Progress so far :

Fuse + engine mount finished.
Wing built.
Empennage built.

Fuse is 25mm X 25mm , 1.2mm aluminium box.
Fuse length : 1400mm ( 55" )

Wingspan : 1800mm ( 71" )
Wing chord : 450mm. ( 17 3/4 " )

Horizontal stab : 620mm X 340mm ( 90mm elevator )
Vertical stab : 300mm X 400mm ( 145mm rudder )

2mm Corflute wing with 5mm Corflute control surfaces. ( Ailerons + Spoileron/Flapperons)
5mm Corflute Tailplane

RCG 50cc petrol with a 20X10 JXF wooden prop.

Working on flying wire braces for tail at the moment.
Posted by Stretch1 | Apr 20, 2014 @ 02:01 AM | 3,517 Views
Fuse is 19mm X 19mm , 1.2mm aluminium box.
Fuse length : 1000mm
Horizontal stab width : 520mm
Vertical stab height : 200mm
Engine mounts 12mm X 12MM , 1.5mm aluminium channel with hardwood inserts.
Wing chord 360mm.
Corflute wing/Tailplane/Profile fuselage
Carbon arrow shaft rear control rods.

OS 55 AX with a 13X4 APC prop.
1 X HS65MG (Throttle)
4 X Hextronik HX5010 twin bearing standard servos. ( Flight Surfaces )
JR RD921 Rx
5Cell Eneloop 6V Rx pack

Still need to fill in the ends of the wing but otherwise ready for maiden tomorrow.
Engine has had one run-in tank at full throttle alternating between two and four stroking, as per OS manual.
Posted by Stretch1 | Oct 26, 2013 @ 05:59 AM | 5,084 Views
Turnigy 2836 2350kv Outrunner
Turnigy Plush 80A ESC
TGS Sport 6x4E Precision prop
Turnigy 2200mAh 30-40C 3S Lipo
2 X Hextronik HX5010 twin bearing standard servos
Spektrum AR6255 Rx

First flight was successful. (Fast and stable and rolls like a drill bit.)
Damaged the nose (15mins to fix) on the second launch. ( Needs to be launched like a funjet! )
I might shorten the nose a bit while I'm repairing the damage.
Posted by Stretch1 | Jul 16, 2013 @ 11:39 PM | 5,987 Views
Plan is to build something strong, but easy to maintain/repair if damaged, that will support multiple wing/fuselage/empennage combinations

Two bolts to remove tailplane.
Two bolts to remove gear.
Wing mount will be setup for two bolt attachment/removal.

I'm thinking about a clip arrangement so a profile fuse can be installed/removed in one or two pieces. ( RC car canopy style?)

1 allen key and 1 spanner should disassemble the majority of the airframe.
Majority of bolts will be 4mm hex heads with nylock nuts.

Fuse is 19mm X 19mm , 1.2mm aluminium box.
Fuse length : 1000mm
Horizontal stab width : 520mm
Vertical stab height : 200mm
Engine mounts 12mm X 12MM , 1.5mm aluminium channel with hardwood inserts.
OS 55 AX with a 13X4 APC prop.

Wing/wing mounts next...
Posted by Stretch1 | May 22, 2013 @ 03:17 AM | 6,933 Views
KD A22-20L 1000KV Outrunner
Aeronaut 30mm/3.0mm Cool Nose Spinner
Aeronaut Cam Carbon 10X6" Folding Prop
Turnigy Plush 40A ESC
Turnigy Nano-Tech 1300mAh 3S 45~90C Lipo

3 X Hitec HS-65MG (Flap/Elevator/Rudder)
2 X Hitec HS-125MG (Ailerons)

Spektrum AR6210 Rx

4 flights at the paddock this afternoon without incident.
Posted by Stretch1 | Nov 12, 2012 @ 07:05 AM | 8,694 Views
I smoked the Turnigy Typhoon 450H 2218H outrunner on my #2 boat so I replaced it with a Turningy 2836 3700kv Heli outrunner. Running on 3S it's a screamer and makes the hornet fly. ( Literally on a couple of occasions!! )

It's over propped and over fed so it's getting pretty toasty. ( I've only been doing one or two full throttle passes then bringing it in and running it unloaded to cool down.)

I thought I'd try a "direct" cooling approach. I wanted to keep the cooling water from spinning off back into the hull, so I put the outboard cover back on. ( It's also holding the 'spray' hose in place.) I've 'wiffled' the back, sides, top and bottom of the cover to let cool air in and hot air and water out.

I've got alloy legs coming for both my Hornets, so it's only a temporary solution until they arrive.
Posted by Stretch1 | Nov 02, 2012 @ 09:12 PM | 9,678 Views
I let the magic smoke out of the stock motor on boat #1 so it was replaced with a Turnigy 2836 2350kv outrunner.
The stock motor on boat #2 never saw current and has been swapped out for a Turnigy Typhoon 450H 2218H outrunner.

I'm just playing with motors I had in my spares box, and they're more than likely operating outside their intended current ratings. It's all fun and games until the magic smoke comes out. ( Then it's still fun and games, but components need to be replaced.)

I'm intending on replacing both outboard legs with more 'substantial' items.
Then it's on to upgrading motors and ESCs...
Posted by Stretch1 | Oct 19, 2012 @ 04:40 AM | 9,383 Views
Hornet F1 Tunnel Hull.

Just a quick pic.
More details to come...
Posted by Stretch1 | Sep 07, 2012 @ 11:25 PM | 9,634 Views
After hanging broken on the wall for many months, my tricopter has been resurrected.
I setup a new linkage system for the yaw mount, replaced the stripped servo and repaired the frame damaged caused by the crash that followed loss of yaw control.

3 packs hovering and retrimming in the workshop this morning. All good.

3 X 2213N 800Kv Outrunners.
3 X GWS EP Propeller RD-9047 228x119mm
3 X Turnigy Plush 25A ESCs.
4 X Hobby King 401B AVCS Digital Head Lock Gyros.
1 XTurnigy 380MAX Micro Servo (Metal Gear) 4.1kg
1 X AR6255 Spektrum Rx.
1 X UBEC.
1 X low voltage alarm.
1 X 2200mAh 3S LiPo.

More photos and details further down in my blog.
Posted by Stretch1 | Aug 23, 2012 @ 06:05 AM | 9,507 Views
OS 55AX
13 X 6 APC Sport prop
OEM 2.25" Alloy Spinner
TWM 260cc tank.
OEM Fuel Dot
4 X HS6635HB's (Flight surfaces)
1 X HS65MG (Throttle)
5Cell Eneloop 6V Rx pack.
JR Power Switch
AR7000 DSM2 Rx
Hextronik LED voltmeter.
Decapitated/Recapitated TWM Pilot.

7 Flights so far, no issues.
Posted by Stretch1 | Apr 14, 2012 @ 03:02 AM | 11,274 Views
Spektrum AR7000 Rx
2 X Hextronik HX5010 twin bearing standard servos.

Turnigy SK3 3530 1460KV Outrunner
Turnigy Plush 60A ESC
TURNIGY 30-40C 3S 2200mAh LiPo
APC E Clone 8X4
396W @ 34A static with APC-E Clone 8X4.

48" Span
Spar tapers from 7/8" in center to 1/4" at tips.
COG @ 2" from leading edge.

Thanks to Knife Liddle for his assistance and plans.

http://www.rcgroups.com/forums/showthread.php?t=1594423

Now for the maiden...
Posted by Stretch1 | Mar 10, 2012 @ 07:01 PM | 11,313 Views
Early Saturday morning with the paddock to myself.
Posted by Stretch1 | Feb 22, 2012 @ 05:40 AM | 12,233 Views
OS 55AX
OEM 260cc tank.
13 X 4 APC Sport prop
4 X HS6635HB's (Flight surfaces)
1 X HS65MG (Throttle)
5Cell Eneloop 6V Rx pack.
AR6210 DSMX Rx

Tank is secured with 3mm bungee cord. (Foam between tank and fuse.)
Engine has had two tanks on my test bench, first tank as per OS manual.
Looking forward to a few gentle flights to sort things out before the stick banging begins.
Posted by Stretch1 | Feb 11, 2012 @ 07:05 PM | 11,889 Views
SPAD WhiteFunda:

Turnigy 2836 2350KV Outrunner
Turnigy Plush 60A ESC
6 X 4 Eprop
3 X HXT900 servos
Spektrum AR6100E 2.4G Rx
Turnigy 2200mAh 30-40C 3S Lipo

Posterboard foam for the top and bottom wing steps to keep the weight down. (4mm coro for the wing and 'fuse', 2mm with bamboo inserts for the vertical stabilisers) Carbon arrow shaft along the leading edge.
Posted by Stretch1 | Feb 11, 2012 @ 06:53 PM | 11,810 Views
No Panic:

Towerpro 2409-12 outrunner
Turnigy Plush 30A ESC
APCE Copy 8 X 4 prop
2 X HXT900 servos
Spektrum AR6100E 2.4G Rx
Turnigy 2200mAh 30-40C 3S Lipo

A bit more durable than the poster board versions.
Now with landing gear!
Coming soon : rudder.
Posted by Stretch1 | Nov 19, 2011 @ 10:39 PM | 13,263 Views
Base model HK 450 chassis (Steel sideplates)
TURNIGY Plush 40amp Speed Controller (BEC disabled)
TURNIGY 3A UBEC w/ Noise Reduction
Turnigy Typhoon 450H 2215H Heli Motor 3550kv
11T Pinion
TURNIGY 30-40C 3S 2200mAh LiPo
Spektrum AR6200 Rx
Hobby King 401B AVCS Digital Head Lock Gyro (Modded)
4 X D922MG Servos
KDS Model fuselage
Stock flybar paddles
HK 450GT main blades
Stock tail blades

Still need to fit the rest of the windows...
Posted by Stretch1 | Sep 15, 2011 @ 07:18 AM | 14,740 Views
HK 450 GT:

TURNIGY Plush 40amp Speed Controller (BEC disabled)
TURNIGY 3A UBEC w/ Noise Reduction
Turnigy Typhoon 450H 2215H Heli Motor 3550kv
11T Pinion
TURNIGY 30-40C 3S 2200mAh LiPo
Spektrum AR6255 Rx
Hobby King 401B AVCS Digital Head Lock Gyro (Modded)
4 X D922MG Servos
HK Fiberglass canopy
OEM Carbon fibre flybar paddles
OEM Carbon fibre main blades
OEM Carbon fibre tail blades
Posted by Stretch1 | May 14, 2011 @ 11:14 PM | 16,476 Views
"Standard" Funjet:
HET Typhoon 2W25 Brushless Inrunner (2720KV)
SECRAFT alloy motor mount
Turnigy DLUX 100A ESC (BEC disabled)
Turnigy 3000mAh 40-50C 4S Lipo
Turnigy 5A UBEC
Spektrum AR6210 DSM-X 2.4G Rx
2 X Hitec HS-65MG servos
Hyperion 'short' 3.2mm collet prop adapter
6 X 4 E prop.

Meter read just over 1200W (1215.9) on a fresh 4S pack this morning.

4 Flights with no dramas, steady as a rock, tracks like it's on rails.
( And it screams like a banshee! )