HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Oct 07, 2010, 11:39 AM
DHG
Registered User
United States, CO, Arvada
Joined Jul 2010
533 Posts
Quote:
Originally Posted by DaveSawers View Post
Why over legislate with lots of finicky rules?
Dave,

Here's all the "over-legislation" you have ALREADY signed onto when you enter EF-1 (or pretty much any other rulebook racing event):

Minimum weight
Minimum wing area
Maximum span
Minimum airfoil thickness
Maximum engine/motor size
Make, model, & technical specs for motor & ESC
Maximum battery weight
Stock propeller/minimum & maximum propeller diameter
Fuselage height/width
Construction materials/finish
Number of R/C channels/ground steering/motor shutoff
Scale replica requirements/design approval
Racecourse dimensions
Start/takeoff procedure
Safety inspection of clevises, pushrods, servo arms, wing hold-down method
Wheel size/thickness/track/position

ANY ONE of these restrictions, which you have already agreed to, is subject to the same arguments you make about the internal elevator horn. Every one was put in place to reconcile two competing interests:

1. Allow for high enough performance to make things interesting, and

2. Keep the activity accessible and appealing to as many participants as possible, with a mind to cost, complexity, and safety.

I could make a list for you of all the R/C racing events that have been invented since 1958, that have started out with all good intentions but immediately began to erode and finally were destroyed by "speed creep" -- starting with items as seemingly minor as an internal elevator horn. That list would include just about every event that has ever existed.

Duane
DHG is offline Find More Posts by DHG
Reply With Quote
Sign up now
to remove ads between posts
Old Oct 10, 2010, 08:15 PM
Caution:Makes sharp left turns
Troy's Avatar
United States, CA, Lake Forest
Joined Feb 1999
6,017 Posts
I had some time today to get some work done on my Midget Mustang EF-1. It took me longer to straighten up the edges of my 1/16" X 6" sheeting than it was to get it in the bed-cores. Thanks to DK for the EF-1 Hotline tech-support! I pre-wet the balsa with a rag and water, then applied Gorilla glue with a Bondo squeegee. The result is the Gorilla Glue will foam slightly and cure much quicker. I stacked a whole bunch of tile on top of the core beds and a nice, flat wood plank to keep the wing halves straight. I have all of the leading edge and trailing edge stock to keep this project moving.
-Troy
Troy is offline Find More Posts by Troy
Reply With Quote
Old Oct 10, 2010, 09:51 PM
Afghanistanimation
johnnychimpo's Avatar
United States, TX, Killeen
Joined Sep 2006
1,171 Posts
Looks nice troy. I just test flew my Pogo this afternoon. I would love to build a kit but like this. A list of kit suppliers would be a great sticky thread IMO.

Edit: The Pogo required only one click of elevator trim and damn there flew perfect right off the ground.
johnnychimpo is offline Find More Posts by johnnychimpo
Last edited by johnnychimpo; Oct 13, 2010 at 10:06 PM.
Reply With Quote
Old Oct 11, 2010, 05:00 PM
Registered User
dkane's Avatar
USA
Joined Jul 2002
794 Posts
Troy, nice work. Keep plugging away.

Here are a couple of inflight shots of Jerry's Shoestring.

DK
dkane is offline Find More Posts by dkane
Reply With Quote
Old Oct 12, 2010, 09:28 PM
Afghanistanimation
johnnychimpo's Avatar
United States, TX, Killeen
Joined Sep 2006
1,171 Posts
Heads up! Hobby king US warehouse in stock now! 2650 4s 40c
http://www.hobbyking.com/hobbyking/s...dProduct=14993
johnnychimpo is offline Find More Posts by johnnychimpo
Reply With Quote
Old Oct 13, 2010, 12:01 PM
Registered User
Muncie, Indiana
Joined Jan 2009
333 Posts
Dan/Jerry,

The Shoestring is Fantastic!!! Is the wing (1) piece or plug in like the Outrageous? Kits????

Archie Adamisin
Muncie, Indiana
Iceman67 is offline Find More Posts by Iceman67
Reply With Quote
Old Oct 13, 2010, 01:34 PM
Registered User
dkane's Avatar
USA
Joined Jul 2002
794 Posts
Archie,

Thanks. The wings plug into the side of the fuselage, similar to the Outrageous.

DK
dkane is offline Find More Posts by dkane
Reply With Quote
Old Oct 13, 2010, 02:51 PM
Registered User
Rsmith's Avatar
Calgary, Alberta, Canada
Joined May 2002
566 Posts
Archie,
Dan stated in post #813 that there are no plans for a kit. It was done for sentimental value only.

Randy
Rsmith is offline Find More Posts by Rsmith
Reply With Quote
Old Oct 13, 2010, 05:21 PM
Registered User
Muncie, Indiana
Joined Jan 2009
333 Posts
Randy,

I read that too. I was having a bit of fun with Dan & Jerry.

Archie Adamisin
Muncie, Indiana
Iceman67 is offline Find More Posts by Iceman67
Reply With Quote
Old Oct 13, 2010, 09:06 PM
Registered User
PylonDave's Avatar
United States, CA, Rancho Cucamonga
Joined Mar 2003
762 Posts
I think we should talk em into a kit!!! We can use a mid wing design!!!

Dan, are the molded parts the same as the Toni ?? how about the wing ??
PylonDave is offline Find More Posts by PylonDave
Reply With Quote
Old Oct 13, 2010, 10:03 PM
Afghanistanimation
johnnychimpo's Avatar
United States, TX, Killeen
Joined Sep 2006
1,171 Posts
Mid wing design would be great! Id jump on that shoestring or a pole cat in a heart beat!
johnnychimpo is offline Find More Posts by johnnychimpo
Reply With Quote
Old Oct 13, 2010, 10:31 PM
Caution:Makes sharp left turns
Troy's Avatar
United States, CA, Lake Forest
Joined Feb 1999
6,017 Posts
Wings sheeted so time for some bench flying. I also just scored some nice fiberglass wheel pants for this baby.
Troy is offline Find More Posts by Troy
Reply With Quote
Old Oct 14, 2010, 10:21 PM
Registered User
Fort Worth, Texas
Joined Nov 2002
191 Posts
I stopped by Jerry's yesterday to drop off some paint he lent me.... WOW!!! That Shoestring is sweet. The pictures here don't do it justice.

On another note, at the first EF1 race Jerry let me race his Pogo. It was fun!!! He then gave me the bits from a wrecked Midget Mustang. I got it in the air today, though it was well after sunset, and no one could believe I was going to maiden this race plane.

All went well, and I am excited we are having another race on Sunday. I really hope this (EF1) takes off, as these planes are a joy to fly.
DBA-FW is online now Find More Posts by DBA-FW
Reply With Quote
Old Oct 15, 2010, 11:44 AM
Registered User
Rsmith's Avatar
Calgary, Alberta, Canada
Joined May 2002
566 Posts
Motor Connector Size ?

Question for the Group:

When I was in Muncie for the F5D worlds, George Parks advised that some guys are experiencing melt down issues with the connectors on the Turnigy 1250Kv motor. ie. the three bullet connectors that plug into the controller. I think the plugs are 3.0mm and they may not be rated for the amps we are drawing using props like the 8x8.

I think George said that guys are changing to the next size up (4.0mm ?). Has anyone experienced this issue ? I had some connector problems of my own in the early days of the Outrageous/Turnigy but I thought it was due to arcing between connectors. I since completely cover each of the connectors with heat shrink to isolate them.


Randy
BTW, it's snowing here this morning...
Rsmith is offline Find More Posts by Rsmith
Reply With Quote
Old Oct 15, 2010, 12:13 PM
Registered User
Canada, NS, Lunenburg
Joined Oct 1999
3,869 Posts
3mm connectors are plenty big enough for the modest currents we're using.

The main problem is the poor soldering of these connectors on the motor side. This causes a temperature rise, melting of the insulation and shorting between phases. Some of the motors I've seen have had solder spikes sticking out of the connectors which makes them even more prone to shorting.

Remake all the motor connections, put on heat shrink as you mention and then wrap each wire in Kapton tape.

Bet we've got more snow out here than in the city. 4" so far and still throwing it down. Hopefully it'll clear up for Sunday's race... Meanwhile, I'm off to hook up the snowplough to the ATV.
DaveSawers is offline Find More Posts by DaveSawers
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Formula One Scale Racing El Pe High Performance 9 Sep 26, 2013 08:30 PM
Sold HPI Racing Formula Ten w/lipo speedcontrol and motor $200.00 Shipped Mikemynameis Cars - Cars and Parts (FS/W) 1 Nov 09, 2009 02:14 PM
For Sale HPI Racing Formula Ten w/lipo speedcontrol and motor Mikemynameis Cars - Cars and Parts (FS/W) 2 Nov 09, 2009 01:52 PM