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Posted by Prof100 | Oct 22, 2017 @ 09:56 PM | 1,878 Views

Eleven Hobby T28 and Improvements (1 min 37 sec)

ABOUT THIS PLANE
  • Great value for a 1100 mm (43)" wingspan ARF foamT28 plane.
  • Assembles in 15 minutes.
  • Weighs 42 ounces or 2.625 lbs. with no battery weighed on my “Portion Power” digital scale. This is relatively lightweight. By comparison, the 1400 mm or 55 inch wingspan V1 FMS T28 weighs a whopping 85 ounces or 5.3 lbs. which is more than double. Newer versions are supposed to lighter due to a lighter foam being used.
  • Excellent flying plane. Flys slowly without surprise tip stalls. At wide open it can be flown very aggressively with no bad habits with or without using the rudder during turns. Very little up elevator required for turns. Great low wing aileron trainer.
  • Sold exclusively by Banggood under the Eleven Hobby brand. FMS makes the plane.
  • This plane uses a 3S 2200 Lipo. Note: Hobbyking carries the Durafly variant which runs on a 4S but has a lower pitch prop and lower KV motor. Some of the parts interchange.

There are several very good YouTube videos ranging from unboxing to flight tests. Just search YouTube.

Below are a series of improvements I have found that work well.

Hinges and skids
Foam hinges will fail over time and protection of the foam surface are key to improving this very affordable RC plane. Hobbyking or equivalent Dubro nylon skids can be installed on the bottom of the wingtips and tail to protect the foam from scrapes. Robart style hinge pins work great to...Continue Reading
Posted by Prof100 | Oct 12, 2017 @ 11:56 PM | 1,716 Views
Good flyer. World Models ARF is a good quality ARF but features like the landing gear are pretty crude. That is, no articulation. The access door is not hinged but rather it is held in with self tapping screws. Wings, of course, are removable for transport and storage but threaded screws and glued in blind nuts are a bit of an adventure to install when fastening the wing.

Setup notes for World Models 1/4 scale clipped wing Cub
  • Front switch is NOT connected because IBEC ignition eliminates a need for an ignition battery.
  • Charge A123 battery using Electrodynamics lead and the rear Electrodynamics switch for charge input.
  • Aftermarket ignition with red light mounted to the lower left front windshield. Tx must be on and Gear switch set to the ON position to run the motor.
  • Kill / ignition switch mapped to gear switch on transmitter. Red light on is to run he engine, no light means ignition is killed.
  • Motor is a DLE 30 side carb with a Bowman ring.
  • RX is a Spektrum DSM2 AR 6200 with satellite bound to my DX8 Gen 1 TX


Posted by Prof100 | Aug 01, 2017 @ 09:21 AM | 2,533 Views
DX8 setup for Guardian on Elevon plane
Note: F22 by Golem with TV tabs. CG is 17.5" from the nose. Below is maiden video back in 2008. FF to about 30 seconds. Video is not edited well but camera work is pretty good. Back in the day it had the state-of-the-art 20C lipo
F22 with KFm2 airfoil -- Maiden -- built by Prof100 (Golem's (5 min 11 sec)

  • EDIT: 8-3-17
  • RANGE TESTS (30 paces to pass per Spektrum)
    • Range tested a basic 2010 vintage 6 channel Orange DSM2 that I optimistically installed in the plane. This RX has one very short antenna and while it has the capability for a satellite RX, none was available. Results -- Test failed at 10 paces. Not good. Conclusion, this RX, as installed is not suitable for use in this plane
    • Swapped out for a twin antenna Orange 6 channel R618XL -- antenna routed on the left side of plane. Left side range check 100 paces. Right side 60 paces. This RX was a 2017 version. One of three I bought on a flash sale for $5 each. It is a "keeper."

================================================== =====================
I am posting this to make it easier for the next person who wants to program their DX8 radio for Guardian use.. Hope this helps someone else. This DOES NOT COVER SETTING UP THE GUARDIAN. The Guardian was already updated with desired firmware and mode preferences prior to programming the radio. Elevon mixing was pre-selected in the Guardian...Continue Reading
Posted by Prof100 | Sep 14, 2016 @ 02:16 PM | 6,099 Views
WARNING or CAVEAT -- With a AR635 this procedure with prevent the stabilization function from initiating.

I spoke to Thomas at Castle tech support. Auto Calibrate of the throttle is the default and theoretically each time you connect the battery you have to go through a calibration. Truth being better than fiction the 2 second wide open throttle calibration is scarey with 2 hp. electric motor spinning a 16 inch prop. So, in practical terms, all you have to do is position throttle at mid point, connect battery, pull to idle to arm the ESC. idle out and then go full throttle for 2 seconds for takeoff. Top end is recalibrated. Don't like using the Autocalibrate default? Keep reading.

You can easily program the Fixed endpoint throttle using the Castle programming card.

This is written from my perspective as a user of a Spektrum DX8 first generation. This is a three part process. Step 1 is to setup the ESC to use fixed endpoints and Step 2 is to adjust the throttle end points in the servo setup Travel throttle setting interface. Step 3 is to bind the receiver again because you need to reset the fail safe.

STEP 1 -- Switching from auto calibrating the throttle to Fixed
First is to connect the card to the throttle lead from the ESC and pressing the lower right button to Throttle (bottom left) and deselecting auto calibrate and selecting FIXED.

STEP 2 -- Adjust throttle end points.
Once Step 1 is completed you then power up the plane normally and adjust the...Continue Reading
Posted by Prof100 | Sep 06, 2016 @ 09:35 PM | 5,444 Views
Posted by Prof100 | Sep 01, 2016 @ 02:18 PM | 7,319 Views
Stock Splendor except Four basic changes:
  1. Modified Morganmill Battery Cartridge system. CG is achievable without adding much weight to tail. .
  2. Magnets on the canopy
  3. Talon 90 ESC with is 9 amp continuous and 20 amp burst BEC.
  4. Reverse the landing gear for grass excursions.
Morganmill BATTERY Cartridge System (BCS)
BCS secures the battery and permits repeatable CG.

Foam had to be removed to fit the BCS. Plus, the aft section had to be trimmed and shortened to sit flat. A slot had to be opened to fit the ESC to RX lead and the battery connection. Washers as spacers were glued to the cartridge base with contact cement to raise up the base and allow the cartridge to fit over the connection tube that holds the two wing mounting brackets together. Even with that upward spacing of the installed base the removable battery holder (i.e., cartridge) had material removed from the aft bottom to provide more clearance so the cartridge locks in.

All in all the modification is good. I can lock the battery down into a repeatable Position 6 of the Cartridge but I did have to cut a relief in the 6 mm cross tube to ensure the cartridge could be locked into the plane. Installing a Morganmill CZ Cub battery cartridge provides the capability to move the battery pack further than the stock battery pocket. Up to 1.75" rearward from stock is possible if desired. Final balance check will dictate final battery location but a preliminary CG check indicates 1/2 ounces (14 grams) is...Continue Reading
Posted by Prof100 | Aug 09, 2016 @ 11:57 PM | 5,815 Views
Below is from Fastflier. Battery slid back, canopy latch fix and reversing the gear make critical sense The switch fails in the open position.


Recommended Modifications: (Listed in the order of priority)
I flew my Splendor several weekends without any mods, just as it comes out of the box.
It flies fine this way, but it is a little nose heavy. Flies better with mod number 2, moving the battery back 3/4ths of an inch.

1. Cut the wire to the On/Off Switch located on the lower right nose. This takes 10 minutes to complete.
The switch isn't needed...it's just another point of possible failure.
This switch isn't reliable and has turned Off in mid flight on many Splendor pilots.
When this happens, you lose everything...no control. You simply remove the spinner and prop so you can get to 2 screws holding the nose cowl.
Simply remove the cowl to get access to the switch. Cut the two wire. Best to cut them to uneven lengths and wrap the ends with a little electrical tape. After removing the switch, it works like most electrics. Plug in your LiPo and you hear all the beeps and the lights start blinking on the receiver and you're ready to fly. I'm running the Turnigy 6s 30C 3300 mAh and I fly for 7.5 minutes.

2. Elongate the battery area for the LiPo battery by neatly cutting and removing the foam about 3/4ths of an inch to the rear.
This allows you to slide your battery back toward the wing by 3/4ths of an inch so you get the correct CG
...Continue Reading
Posted by Prof100 | Jan 26, 2015 @ 11:18 PM | 10,546 Views
My 4 year old HP Pavilion I7 laptop was getting hot on the surface above the CPU. Temperature was averaging 160 to 170 F. with very little operating in the laptop. This posed a problem and I had to fix the overheating problem or risk damaging the CPU. The machine is unique in the laptop realm because it was equipped with 7200 rpm hard drive.

I actually bought a replacement laptop but found the Windows 8.1 and 5400 rpm hard disk to be no better than my 4 year old laptop. I had 90 days to return the new laptop if I didn't like it with no restocking fee (gotta love Costco).

I decided to see if could fix the overheating problem and speed up the laptop. I considered installing a solid state drive but first I needed to fix the overheating problem by reducing the work load on the CPU. I disabled unnecessary startup programs to reduce CPU load. That helped but the laptop was constantly using the CPU beyond the applications I was running. I wasn't editing video, just running MS Office programs. I found my laptop seemed to be indexing constantly. The Search Indexing function was pounding the CPU and loadings it constantly and heating it up. I then limited the search indexer to ONLY index My Documents, not the whole 1TB hard drive again and again. This helped reduce temperature by about 10 degrees F. That wasn't enough. Load was less. I also ran an array of anti-virus / Trojan cleaning programs and if Malwarebytes didn't catch something then HitManPro. I run MS Essentials to...Continue Reading
Posted by Prof100 | Dec 12, 2014 @ 03:46 PM | 14,020 Views
This blog covers what it takes to install the aftermarket Bowman piston ring in a DLE30. The DLE30 side carb had about 3 hours of run time but it never had much compression from new. It almost felt like the plug was missing.

The Bowman rings (Frank Bowman email ringmaster46@msn.com and phone number 505-327-0696) are noted for improving performance of RC gas motors because the rings are designed for a very close tolerance end gap (.001" to .002"). Material used and reduced piston ring end gap increases compression and hence power. Cost is about $20 and it arrives in a small envelope with simple set of instructions. This is how it comes when you open the envelope.

The DLE 30 I upgraded was a barely broken in DLE I have mounted in a 1/4 scale Clipped Wing Cub. I decided not to completely tear down the motor but do the minimum disassembly to install the new ring. The installation took about an hour while being interrupted by phone calls.



Tools and supplies needed are simple:
  • 4 mm hex head allen wrench
  • a small box wrench to lever the hex head allen to break away the torque.
  • 600 grit wet/dry sandpaper
  • .001 and .002" feeler gage
  • Blue Thread Locker
  • 2 cycle oil to lubricate the piston, ring and bore before reassembly
  • Goo Gone to clean the grime, carbon, oil and 600 grit wet/dry sandpaper
  • Paper towels
Step 1 -- Remove the prop, screws and cowl -- set aside
Step 2 -- Remove 4mm hex head screws that hold the jug/sleeve/head. These are very...Continue Reading
Posted by Prof100 | Oct 04, 2014 @ 07:53 PM | 12,732 Views
Here is very good starter available from a pro Seller on RC Universe. I have seen it in action. Price is $127 plus shipping and it comes with 2 cups. 12-18 volt 6-1 gear reduction starter w/3cell LiPo and 2 inserts (one of each size). Have a lipo already? Order without a lipo and save $20. I bought one with 2 inserts and no lipo for $117 shipped ($107 plus $10 shipping).

http://www.rcuniverse.com/market/item.cfm?itemId=999890



Posted by Prof100 | Aug 30, 2014 @ 08:54 PM | 12,658 Views
Here is a quick post of what it takes to wire and build your own A123 receiver packs using 2500 mah cells. I use these for my gasser giant scale planes. Cost is about $25 including cell shipping.


(Below is another link to 2016 posting about building your own A123 receiver packs:
https://www.rcgroups.com/forums/show...&postcount=815)

PREFERRED CELLS
You want genuine A123 cells and you can buy them from RadicalRC for $10 each. The cells do NOT come with welded on tabs so you have to know how to quickly solder the wires on cells. Also, you have to carefully prep the surface and scuff it so you get to bare metal then tin the surface.

BATTERY PACK SHRINK
You can also buy shrink for $1 a foot (95 mm) to cover the pack.

PREPPING THE CELLS
You need to glue the cells together and tin the cells with solder before soldering. I use CA with Accelerator to glue them together.

SOLDERING and PROTECTING THE SOLDER JOINTS AND CELLS
After tinning you solder the leads on as per the picture wiring diagram. I slide on some shrink tubing to further protect wire leads. Once everything is soldered use fiberglass tape or 3M cross weave fiberglass tape to position the wires and help with stress relief. I finish off the pack with 95 to 100 mm heat shrink with the shrink covering the ends of the cells and solder joints.

PICTURES AND DIAGRAM WORTH A THOUSAND WORDS
The pictures describe the wiring harness. I always add a Deans connector if the Cellpro 4S is missing its...Continue Reading
Posted by Prof100 | Mar 02, 2014 @ 08:41 PM | 55,314 Views
I thought I would start a thread in my blog for modifying the Carbon Z Cub. The Carbon Z Cub is produced by E Flite and its design team was lead by Quique Somenzini. He left Horizon Hobbies at the end of October 2013. I believe this was the last plane he designed for Horizon Hobbies

Below is from his Wikepedia page:
Quique Somenzini is a professional radio controlled aircraft pilot and designer, owner of model manufacturer QuiQue's Aircraft Company and the 2007 FAI world champion.

A native of Rio Cuarto, Argentina, Somenzini has the distinction of being the youngest competitor in the history of the FAI championships, flying in competition in 1979 at the age of twelve. His father, Mario, is a former champion as well and introduced Somenzini to the hobby of model aircraft flight at the age of nine.
ABOUT THE PLANE

The Carbon Z Cub is the largest production foam airplane. It is a 20% scale RC aircraft.

Product Description

Key Features
  • Easy-to-complete final assembly
  • Quique Somenzini design and attention to details
  • Exceptionally strong, easy to repair, Carbon-Z® construction
  • 5-channel control including functional flaps
  • E-flite® 60-Amp Pro Switch-Mode BEC Brushless ESC included
  • Digital servo control including operational flaps installed
  • Pre-hinged control surfaces with control links installed
  • Plug-in wings and stabilizers
  • High-grade socket-head hardware use throughout
  • Hatch covers provide easy access and a wide range of battery options
  • Included 3 meter
...Continue Reading
Posted by Prof100 | Jan 06, 2014 @ 07:20 PM | 15,294 Views
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Posted by Prof100 | Dec 01, 2013 @ 11:25 PM | 15,141 Views
Bought a Eflite Splendor from Horizon for $269.99 which include 10% off and free shipping.
Posted by Prof100 | Nov 29, 2013 @ 02:15 PM | 15,129 Views
John Redman AR635 programming video...HorizonHobby.com How To - Programming Your Spektrum AR635

http://www.youtube.com/watch?feature...&v=-ALhC0H5R-M
Posted by Prof100 | Nov 27, 2013 @ 10:28 PM | 17,200 Views
Finished wing bags and covers for vertical and horizontal stab.
  • $23 a roll for 24” wide. Reflectix 3/16” thick. 25 feet long.
  • 22.25” wide by 94” piece for each wing bag.
  • Regular sewing machine with straight stitch and longest stitch.
  • Thread was simple, everyday mending thread.
  • Woodpecker is used to puncture the bubble wrap that's sandwiched between the foil. Woodpecker is used over carpet or cutting board. Do both sides twice and inboard enough to allow insulation material to fit under the shoe.
    EDIT: An alternative to the Woodpecker is simple and perhaps more effective. A Steam Iron set to max temp (I.e., linen) will flatten the edges and make sewing even easier. You must use bakers paper or parchment between the Reflectix and Iron to preventing melting the plastic and sticking to the hot plate or shoe of the Iron. Certain brands of the aluminized bubble wrap will permanently bond together if an Iron is used at max temp. The Reflectix brand does not fuse together permanently. It does stick together but separates like masking tape.
  • Don't forget Sewing 101 and to properly engage the bobbin thread with needle thread. And, lock the stitch by going back and forth using the reverse switch on the sewing machine. Never used a sewing machine just google the make and model in Youtube and there will be endless how to videos.
  • Must push and pull through sewing machine.
The inspiration video for making the bags is courtesy of estrickland1.
How to Make a Wing Bag, wing cover. (23 min 19 sec)(23 min 19 sec)
Posted by Prof100 | Nov 10, 2013 @ 12:15 AM | 25,344 Views
UPDATE 2/23/14
Ordered and received Kavan 6" inflatable wheels and tires (PN 0266) from Sig Mfg. They are lighter than stock. A small brass fitting comes with it that you screw in to inflate. I will fly them as received. With a 5 mm axles on the CZC the smaller of the delrin inserts (3/16") have to drilled out with 13/64" (.203) drill.


Ordered and received an Eflite 2.5" aluminum spinner (EFLSP250) that replaces the plastic one. It's a bit pricey at $26 but it looks cool. It comes with 5mm and 6mm size collet adapter. The long screw is a English sized hex head.


Ordered a Power 60 470 KV motor as a spare from Horizon. Stock motor is an unspecified 50 size that it be tasked to work on the upper end of its capabilities. Priced at $109 and free shipping I am OK with having known quality motor to install. It should pull 250 more watts using a more aggressive prop.


UPDATE 1-26-14
With snow and cold I decided to work on installing the Talon 90 in the Carbon Z Cub. It requires opening up the original ESC location to make sure air with flow above and below the rather large 90 amp Talon ESC. The ESC comes with male adapters you solder to the motor leads. I run Deans style for battery connection.





Do you really need a 90 AMP esc? No, but if I want to over prop on pitch I won't have to worry about much other than toasting the motor. The ESC will have plenty of headroom. And, if I opt to do what I normally do and put...Continue Reading
Posted by Prof100 | Jul 19, 2013 @ 10:50 PM | 16,532 Views
After 18 years the club decided to repave the runway. Not only was it repaved it was lengthened 115 feet to 500 feet and widened 5 feet to 39 feet..

Below is time lapse video put together by Rick Reynolds with pictures also taken by Robert Keyes.

I was the project manager of the repaving. Enjoy.
Runway 2013 Flying Pilgrims (8 min 37 sec)
Posted by Prof100 | May 17, 2013 @ 11:20 PM | 21,160 Views
OrangeRx R710 DSM2 Compatible receiver
1 x Bind Plug
NOTE:
1) Accepted by the MAAA in Australia, see the MAAA MOP58 for guidance
2) This is not a Spektrum receiver, nor is it a copy of a Spektrum Receiver.
The Spektrum brand is a trademark of Horizon Hobbies USA.
3) Price of this receiver may fluctuate (up or down) due to cost of electronic components.
4) This is not an underground manufactured fake Spektrum receiver. OrangeRx quality is guaranteed.

Chl 1-Throttle
Chl 2-Aileron
Chl 3-Elevator
Chl 4-Rudder
Chl 5-Gear
Chl 6-Flaps
Chl 7-Aux

Below is the Guardian Installation for 4 channel HK Yak55 3D plane.

Posted by Prof100 | Apr 07, 2013 @ 01:03 AM | 17,616 Views
Here is my homemade plane restraint. I had plenty of material and TIG welder in my shop so I made this safety restraint for my new Hangar 9 gasser.

The restraint is made of thin wall tubing. The spikes are 12" nails. The beauty of this design is the uprights can be simply lifted and let fall to the side. The pivot holes accept 2.5 inch long by 5/16" both on the bottom and the removable pin on the top that permits pivoting out of the way. Vertical tubing is 7/8" square by .083" wall. the tubing has an open slot on the bottom and captured slow above it tto control the drop to the sides The base is rectangular tubing which I never measured. This was again a piece of material I had laying around in the shop.

The 12" nails have 3/4" square tubing T handles welded to them. They're galvanized with a rather thick coating which made Tig welding problematic in that it was a son of gun to get all the coating ground off.

I painted it with Duplicolor rust preventing zinc chromate primer and then a couple of coats of school bus yellow acrylic enamel.