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Search: Posts Made By: Dave Kovensky
Showing results 1 to 25 of 99
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Forum: Aerodynamics
12-23-2014, 11:49 AM
Replies: 12
Views: 4,674
Posted By Dave Kovensky

A Photo of My R/C Strato Streak

Hi Horace,

I just finished my R/C version of the Strato Streak and it incorporates most of your recommendations. Thought you might want to see what it looks like.

Dave
Forum: Aerodynamics
12-17-2014, 12:14 PM
Replies: 12
Views: 4,674
Posted By Dave Kovensky

Thanks for your reply to my question. I already...

Thanks for your reply to my question. I already have done a search of many plan service competition free-flight pylon models and was unable to find any that did show the C/G balance location. And...
Forum: Aerodynamics
12-10-2014, 04:28 PM
Replies: 12
Views: 4,674
Posted By Dave Kovensky

Hi BMathews, Thanks for your rapid response...

Hi BMathews,

Thanks for your rapid response to my query. I tried searching in R/C Universe but came up with no results. I Googled this address and was successful in getting on the site. I then...
Forum: Aerodynamics
12-09-2014, 12:46 PM
Replies: 12
Views: 4,674
Posted By Dave Kovensky

Center of Gravity for Pylon Free Flight Model

I am scratch bulding a three channel R/C version of Lou Garami's "Stratostreak" pylon free flight model. This was an Atom and Arden .099 gas engine powered airplane that I built many years ago that I...
Forum: Park Flyers & Backyard Flyers
05-31-2009, 10:19 AM
Replies: 50
Views: 30,694
Posted By Dave Kovensky

RE: GWS Slow Stick With Ailerons

You should use two servos, one in each wing. You can mount them with double sided servo tape or make up 3/32 inch plywood adapters. Cut out the ailerons using the embossed outlines in the wing. Don't...
Forum: Electric General Discussion
11-16-2008, 01:09 PM
Replies: 2
Views: 525
Posted By Dave Kovensky

RE: Overheated E-flite Park 370 In-Runner Motor

Hi Matt,

Thanks for your input. I got an E-flight gearbox module and set it up with my 370 in-runner motor. Works fine! Runs cool and gives plenty of thrust with a EP 9.47 prop.

Dave...
Forum: Electric General Discussion
11-05-2008, 02:34 PM
Replies: 2
Views: 525
Posted By Dave Kovensky

Overheated E-flite Park 370 In-Runner Motor

I have an E-flite In-Runner motor that is set up as a direct drive with a Master Airscrew 6-3 prop, Hextronic 036 ESC with a Turnigy UBEC and either a 2 or 3 cell LiPol battery. At full throttle, it...
Forum: Electric General Discussion
06-20-2008, 09:58 PM
Replies: 4
Views: 1,573
Posted By Dave Kovensky

RE: Use of NiCad Receiver Battery with BEC

Don't mean to make this into a never-ending message tag, but the 60 amp Turnigy ESC is identified as having a switching BEC on the Hobby City website. A number of their customers have co-oberated...
Forum: Electric General Discussion
06-20-2008, 12:27 PM
Replies: 4
Views: 1,573
Posted By Dave Kovensky

RE: Use of NiCad Receiver Battery with BEC

Hi Mark,

Thanks for your prompt reply to my question. The 60 amp ESC that I just ordered from Hobby City is a Turnigy Sentry and has the following attributes:

Constant Current:60 amps
...
Forum: Electric General Discussion
06-19-2008, 01:18 PM
Replies: 4
Views: 1,573
Posted By Dave Kovensky

Use of NiCad Receiver Battery with BEC

I have recently experienced a few "brown outs" (momentary loss of control similar to a glitch) while flying my Spektrum DX6i installed radio in a scratch built MidWest Little Stick. I modified this...
Forum: "1/2 A" & "1/8 A" airplanes
06-07-2007, 04:24 PM
Replies: 65
Views: 8,660
Posted By Dave Kovensky

RE: Was ist das, another Stik?

Am building a Hacker20-style brushless motor /3 cell 1250 maH lipol version of Andrew Donatelli's Mini Bipe Stik. So far, it lacks installation and hook-up of 2 aileron servos, but is fully covered...
Forum: Electric Aerobatic & Sport Planes
04-08-2007, 08:59 PM
Replies: 26
Views: 7,536
Posted By Dave Kovensky

RE: E-Flite Mini Ultra Stick Flight Characteristics

Hi Dave,

Regarding your comment about the sturdiness of the landing gear mount location, On my M.U.S. I have replaced the 4-40 metal landing gear mounting screws with 6-32 nylon screws and the...
Forum: Electric Aerobatic & Sport Planes
04-08-2007, 01:44 PM
Replies: 26
Views: 7,536
Posted By Dave Kovensky

RE: E-Flite Mini Ultra Stick Flight Characteristics

Hi Doc,

Thanks for your advice. This was a well written piece that should be of great value to lots of fliers in both Electric and Glow sport flying categories! Incidentally, the 2 inch aft...
Forum: Electric Aerobatic & Sport Planes
04-04-2007, 09:20 PM
Replies: 26
Views: 7,536
Posted By Dave Kovensky

RE: E-Flite Mini Ultra Stick Flight Characteristics

Hi Doc,

Read the string you recommended and enjoyed it very much! Getting back to my original problem, I am beginning to believe that using exponential on my MUS may be causing the...
Forum: Electric Aerobatic & Sport Planes
04-01-2007, 08:54 PM
Replies: 26
Views: 7,536
Posted By Dave Kovensky

RE: E-Flite Mini Ultra Stick Flight Characteristics

Hi Rod,

No binding of pushrods. See my previous writeups regarding C.G., control throw adjustment and other set up steps I have taken to tame my model. In glow, I have flown .60 powered Ugly...
Forum: Electric Aerobatic & Sport Planes
03-30-2007, 11:10 AM
Replies: 26
Views: 7,536
Posted By Dave Kovensky

RE: E-Flite Mini Ultra Stick Flight Characteristics

Hi Matt,

You raise a good issue. I have both HiTec Optic and Spektra r/c systems. The HiTec Does have both + and - exponential and can be set with "reverse" modes. The correct setting is -...
Forum: Electric Aerobatic & Sport Planes
03-29-2007, 11:44 AM
Replies: 26
Views: 7,536
Posted By Dave Kovensky

RE: E-Flite Mini Ultra Stick Flight Characteristics

I am using Spektrum DX6 and HiTec Optic r/c equipment

Dave
Forum: Electric Aerobatic & Sport Planes
03-27-2007, 05:49 PM
Replies: 26
Views: 7,536
Posted By Dave Kovensky

RE: E-Flite Mini Ultra Stick Flight Characteristics

Hi Gary, Jmir and Newjac,

Thanks for your advice. I have set up the C.G. to 2 inches aft of the leading edge rather than the instruction manual's 2 1/4inches (57mm) to make the model a tad nose...
Forum: Electric Aerobatic & Sport Planes
03-26-2007, 07:06 PM
Replies: 26
Views: 7,536
Posted By Dave Kovensky

RE: E-Flite Mini Ultra Stick Flight Characteristics

Hi Newjak and Jmir,

Thanks for your prompt replies to my request for advice. The following is a revised write-up to correct my plan and make my MUS a bit NOSE-HEAVY. What I originally wrote...
Forum: Electric Aerobatic & Sport Planes
03-26-2007, 12:43 PM
Replies: 26
Views: 7,536
Posted By Dave Kovensky

E-Flite Mini Ultra Stick Flight Characteristics

I set up my Mini Ultra Stick (MUS) in accordance with the instruction manual for both low and high control surface throws as well as the 2 1/4 inch C.G. location. Even with low rates, the model was...
Forum: E-Flight Power Sources
01-03-2007, 02:55 PM
Replies: 0
Views: 699
Posted By Dave Kovensky

Hacker Style Brushless Motors

Could anyone enlighten me on the differences (if any) between the following:

Hacker A20-22L Brushless Outrunner Motor
Hextronic HXT20-20L Hacker Style Brushless Outrunner Motor
Hextronic...
Forum: Electric Training
11-09-2006, 06:14 PM
Replies: 16
Views: 10,624
Posted By Dave Kovensky

RE: Slow Stick Ailerons

Suggest you look up the string "Slow Stick With Ailerons" for how to modify your Slow Stick to incorporate ailerons, upgrade to a brushless motor, add a steerable tail wheel and more including photos...
Forum: Park Flyers & Backyard Flyers
05-15-2006, 02:58 PM
Replies: 50
Views: 30,694
Posted By Dave Kovensky

RE: GWS Slow Stick With Ailerons

In reviewing the photos of my mods to the Slow Stick Plus wing, I noticed that the picture of the inboard aileron brace did not show the cotton thread wrapping too clearly. So here is a sketch that...
Forum: Park Flyers & Backyard Flyers
05-15-2006, 01:46 PM
Replies: 50
Views: 30,694
Posted By Dave Kovensky

RE: GWS Slow Stick With Ailerons

Your absolutely right! Just placed an order for an aluminum tube and a "D" type plastic tree with mw_hobby (sm member @ ebay.com) and got their "Your order has been shipped" notice within in an...
Forum: Park Flyers & Backyard Flyers
05-13-2006, 03:55 PM
Replies: 50
Views: 30,694
Posted By Dave Kovensky

RE: GWS Slow Stick With Ailerons

Hi netdudeuk
I am a friend of Dave K. It looks like you may be drawing too much current from your LiPo. Check the "C" rating of the battery and by multiplying that by the battery capacity will...
Showing results 1 to 25 of 99
 
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