SMALL - espritmodel.com SMALL - Telemetry SMALL - Radio
Posted by mcg | Today @ 07:49 PM | 13 Views
The following is an account which I have translated into English from Italian sources, of the 1922 Schneider Cup race. The race was held in the Bay of Naples. The primary source is a 1983 book by Igino Coggi on the MC-72 and the Schneider Cup. Supplementary sources include an account of the S.I.A.I aircraft company in the interwar years. Michael

A Schneider under the slopes of Vesuvius

Italy won the Schneider Cup races in 1920 and 192I and was thus named as the organizer, under the rules, of the 1922 race. It was decided to hold the race in Naples. The Italians hoped to retire, with a third victory, the flashy trophy put into play nine years earlier by Jacques Schneider.

Instead, however, and for a second time, the trophy went to Britain, thanks to
Henry Biard and his little Supermarine flying boat.

"Actually that race was a lesson for us," would write in 1927 the Italian aeronautical journalist Jotti Da Badia Polesine, "We had (simply) continued in the footsteps traced in previous years, while the technicians in England, who understood the priorities and the true essence of the race, came down (to Naples) prepared to win."

A harsh judgment, and one suggested earlier by some other observers, but the last word belongs to Jotti: "The English waited three years before entering a new machine in the race, and (what had seemed to us) their lack of interest masked their intensive preparatory work. It paid off."

The...Continue Reading
Posted by cloninger800 | Today @ 07:15 PM | 140 Views
September Fate EF1 by Mike Cloninger

I've been working on this design for some time, almost 2 years in February, to be exact! I've been taking photos as I have gone and will try to post the whole process as I went. Here is my design that was approved by the NMPRA.
Posted by brett.c | Today @ 06:25 PM | 171 Views
modius dashcam
Posted by Jack Crossfire | Today @ 06:10 PM | 209 Views
So what happens when power is constant & voltage is changed?


Was hoping there would be an identical percentage decrease in RPM for all power. Instead, the RPM for 25W decreased 9% while the RPM for 10W decreased 4% as the voltage increased.

RPM decrease at 12V vs 9V:
25W 9%
22W 8%
15W 6%
10W 4%

It was a table just as complex as scaling PWM based on voltage. The rainy season was over & there was enough time before the next commute to try out constant power at a roughly constant voltage anyways.

The speed variation on hills was wider than any other method. It became clear that humans need a lot less power going uphill & a lot more power going downhill than a motor to achieve the same speed. It's the same as how humans don't hear all frequencies equally.

The next step would be a hall effect sensor tachometer. It's all purely speculation about what a human can keep up with, faking a speed that feels like constant effort instead of trying to predict constant effort from power. The tachometer could be combined with an accelerometer to give it some variability based on incline. The current sensor is useless.
Posted by Whiskers | Today @ 05:55 PM | 248 Views
Strictly speaking, it was not my first FPV flight. This was my first with my gear.
A flying buddy had given me a flight with his well sorted out plane, but that one has an OSD so there is always handy information like altitude in view.
My setup is much more basic. The Hobby King DIY goggles and radio which cost about A$110 posted. No OSD for me... Yet
I needed to add some foam rubber to the goggle box to give me a longer eye to lens distance, and the image is OK but not great.
An old (modified) Fly Dragon trainer was brought out of retirement and the gear was installed in a. "minimum effort" way.
So off to the field I went with all the the whole kit, plus my wife and a chair.
The plan was to do the first flight LOS with my wife looking at the FPV image to see if we had a solid link. This all went well, except that I made a rotten down wind landing (The breeze had shifted 180 deg ) and bent the LG. I straightened the gear and did another short LOS flight and shot a good landing.
For the next flight I had the goggles up on my forehead and took the plane to a reasonable altitude LOS and then dragged the goggles down to start FPV.
All good. I know the terrain very well so I knew where I was at all times.
I asked my wife to place the chair behind me and sat down, even though I was having no problems with balance at that point.
The breeze had come up a little and I had to ask my wife where it was coming from because although I could feel it I had no idea which way I was facing.
Lesson: Orient the chair and sit before FPVing.
OK. Time for the landing. I had thought I'd land LOS, but as I'd had no problems with the flight I opted to land FPV.
I had to come in over power-lines and gave myself a heap of clearance and landed way long. No problem. I had plenty of field and no matter how far away you get the view is still the same. I could see when I needed to flair and the landing was fine.
So, all good.
Posted by davidterrell80 | Today @ 04:50 PM | 276 Views
Vulcan of the Sky shared a nice hand toss Vulcan.

"Your own home-sized flying Vulcan in antiflash white. Simply click the link, print and fly with your friends and family, thanks to the design talents of Mark Freshney."

http://www.vulcantothesky.org/upload...r-cut-out3.pdf
Posted by CO2X2010 | Today @ 04:29 PM | 317 Views
RED TESLA 3


....dismantled the TESLA 2 PVC Version and converted to this....Continue Reading
Posted by JimNM | Today @ 03:43 PM | 362 Views
Paul Harvey " Policeman " One of His Best Narrations (2 min 10 sec)


Thank you, brothers and Mr. Harvey for speaking out for them. There is honor in service to others and no "Thank you " is ever expected.
Posted by vincent123 | Today @ 03:06 PM | 390 Views
Fuselage and wing joined.

Aileron stiffened.
Posted by jeffr1611 | Today @ 02:42 PM | 436 Views
I have a extra 300s 40 size that I crashed I have to replace the fuselage, front very damaged everything else good I am thinking of lengthening The plane by 6 inches behind the wing I have another extra I don't need two of them the same, what do you think the center of the gravity should be with the back longer and heavier right now it's 2 7/8 I have plenty of power Evolution 10cc
Posted by FlyingPhilUK | Today @ 02:22 PM | 449 Views
The weather here is usually pretty nasty at this time of year
- lots of rain & wind
- but yesterday was a beautiful day, with a low winter sun, and not much cloud or wind...

I took the opportunity to get a few flights in on my CX250, CX450, Xtron 500 & Trex 600
- these days, I'm working on my inverted flight
- trying to get smooth inverted figure-of-8 circuits...

CX250:
Copterx CX250 - nice december weather, more inverted practice #1 (5 min 36 sec)


CX450:
...Continue Reading
Posted by dmrcflyr2 | Today @ 01:29 PM | 519 Views
Man I love this forum! Since I got back into the hobby in 2012 I have scored some really killer deals on engines, particularly 4-stroke engines. To date I have not paid over $200 for any engine. Now some of the deals came from RCUniverse but still.

Since 2012 I have bought the following NIB engines. Not a single engine cost more than $200 shipped to me. Now I don't still have all of these engines as I like to horse trade, but the point is great deals are available to those who search.

Saito FA-65 - local craigslist have run several times to include yesterday.
Saito FA-91 - RCGroups still have not run
OS FS-90 - From RCU still have not run.
Enya 80-4C - From RCU still have not run.
Enya 60-4C - Recieved in trade, and have now sold.
OS FS-70 Surpass - traded straight deal for Enya 60-4C
Enya 90-4C - Has not arrived yet
Saito FA-56 - Has not arrived yet.
Enya SS 40BB(2) - ran run for 15 tanks and sold it. Just bought another
Saito FA-45 - sold

That is just some the NIB engines, I have not even listed the other used engines I have bought, run and sold. Some of those would be

OS-FS-90 (2) - both sold for other things.
Saito-FA56 - sold in an airplane deal
Enya 46-4C - still around will never sell
Saito FA-50 - sold

I guess the point of this post is that this is a great forum to obtain engines from and all states. I am partial to the older style engines from the 80's and 90's.
Posted by schumixmd | Today @ 12:52 PM | 571 Views
660mm quad with FPVModel MC-3508 700kv motors on 3s. Not intended for acro flight.

Killin'It (3 min 40 sec)

Posted by 747Pilot | Today @ 12:49 PM | 578 Views
Getting voltage telemetry from a DragonFly32 Pro FC to display on a Taranis via a D4R-ii Frsky reciever. Read below for links. All credit goes to these people. I just soldered.

Taranis Frsky Telemetry & DragonFly32 Pro FC for Mini 250 (5 min 14 sec)


Johnny Meg from Team Legit
http://www.team-legit.com/#!mini-quad/c1q4h

Rcg user - mstevenson1972
http://www.rcgroups.com/forums/showp...&postcount=657

Chris Riccio - From Facebook. Mini fpv pilot.

The Mini Quad Club at Facebook
https://www.facebook.com/groups/miniquadclub/

DragonFly32 Pro RCG thread here
http://www.rcgroups.com/forums/showthread.php?t=2260906

ModifiedRC Youtube channel - ModifiedRC
...Continue Reading
Posted by eiichi KOGU | Today @ 11:40 AM | 644 Views
RC model helicopter. Beginners practice.
Trouble and crash record. January to June 2014.
墜落集1RC model helicopter. My Trouble and crash (6 min 3 sec)

Posted by MinnesotaRCFlyer | Today @ 11:17 AM | 649 Views
Had some fun with this even though I have used most (although not all) of the footage in prior videos. Field goal/"limbo" sequence starts at around :33; double "limbo" around 2:50. Enjoy

E-Flite P-51D with One More Take on "Disturbia" (3 min 59 sec)


If you like it just subscribe to Minnesota RCFlyer on Youtube.
Posted by tomclark | Today @ 10:00 AM | 736 Views
If you like building and flying large RC airplanes, and building them very easily and inexpensively, you might light like to see a thread I just posted under The Builders Workshop.
http://www.rcgroups.com/forums/showthread.php?t=2308243

For many years now I have been building larger than normal RC planes. Bigger flies better. The way they are built using little balsa, no solid balsa slab sides, no huge sheets of lite ply, just simple to build sticks. No fancy plans, no huge formers, just sticks.

There is nothing new about building like this. Old Timers were built like this a hundred years ago - before they were old timers. Stick construction is just an effective way of building today.

Some of the benefits is this type of construction is that it is very inexpensive. Many of the ARFs in my club cost hundreds of dollars. A couple of the planes in these photos have 102" wingspans, and cost well under $100 to build for the materials and covering, especially now that china coat is available for 1/3 the price of the old brands we have used for years.

Flip through my blog pages below and you will see many more photos of planes I have built using similar methods over the last 40 years.
Posted by w0ace | Today @ 09:55 AM | 745 Views
I just ordered a BUSA 1/4 scale cub kit, and have a brand new DLE20RA waiting at my office that arrived Friday. This will be my first Big Bird build! Looks easy, I've built many Sig Senoritas in the past and this looks to be about the same. I've read as many builds as I can find and plan a couple easy mods:

Slide horizontal stab forward about 15/16" for scale looks.
Remove top sheeting to create better for of covering from vertical to horizontal surface.
Add landing gear doubler after installing Robart scale gear.
I'm doing custom aluminum front and rear spar inserts to aid assembly.
Servos under rear seat area.
Aluminum wing struts.
Fiberglass cowl.
TPA dummy engine.
If I do decide to model a Flitfire then lighting!!!!
Rib stitching.
Solartex covering and spray paint.

Well stay tuned for future updates.....

Yeah, this will be Cub #3 for the hangar, Flyzone Select Scale, .46 ARF, and now this one!
Posted by minizoom | Today @ 09:24 AM | 735 Views
ZMR 250 Bashing (3 min 14 sec)

Posted by PittSpecial | Today @ 08:45 AM | 791 Views
Yes, with no Engine Rebuilt history!

Its amazing what happens when you maintain a car with the correct amount of care and most especially frequent Oil changes!

1992 Camry Jamming 12-19-2014 (3 min 1 sec)


Oh, here are a few other links to additional report postings:

1992 Toyota Camry with 465,000 miles - New Distributor & O2 Sensor!
http://www.rcgroups.com/forums/showthread.php?t=2295870

1992 Toyota Camry Spark Plugs & Throttle Body!
http://www.rcgroups.com/forums/showthread.php?t=2289373

1992 Toyota Camry - Rear Brake Light Bulbs Socket Type!
http://www.rcgroups.com/forums/showthread.php?t=2195791

My 1992 Toyota Camry XLE Just tuned 456,400 miles
http://www.rcgroups.com/forums/showthread.php?t=2195533

1992 Toyota Camry XLE with 451,000 + miles!
http://www.rcgroups.com/forums/showthread.php?t=2161657

1992 Toyota Camry gets New Radio-Speakers and AC Recharge!
http://www.rcgroups.com/forums/showthread.php?t=1903605

Ignition Timing Adjustment - 1992 Toyota Camry XLE
http://www.rcgroups.com/forums/showthread.php?t=1881899