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Member postings for robert chamberlain

Here is a list of all the postings robert chamberlain has made in our forums. Click on a thread name to jump to the thread.

Thread: Repairing a 3D Angel "Jigsaw"
01/07/2020 22:21:26

speaking of rebuilding,--I have a simple question. For years, when building from plans, I have been using a COPING SAW to cut around corners. At least this is what it is called in the U.S.--This hand held saw uses those thin 7 inch or so blades and I have gotten along fine with it. I noticed a bargain motor driven unit called either a scroll or fret saw. We all collect tools and I was wondering if it is used only occasionally or is an important go to tool always in use? Odd question I know, but is this really a "need to have" tool ?Bob in Kansas USA

Thread: Adding nose weight
26/06/2020 08:17:37

Hi people,--I have ,if needed, always used a mix of epoxy and lead shot from a gun store. I don't think melting lead is a good idea as it gives off poison vapors! In my sailplanes I have made little balsa boxes of epoxy and lead shot and secured them on the CG. This, of course, is not going to help in a heavy tailplane. In the end, epoxy and cold lead shot epoxied some where is my approach.

Bob in Kansas,US

Thread: Will we continue to get the magazine (RCM&E)?
19/06/2020 06:18:44

HI FOLKS, --I am confused, as usual, about how to get the digital version here in the USA. This has been offered in the past to people who desired it ,--so why can not my name/number simply be add to the list?

Bob C in Kansas, USA

Thread: First electric glider suggestion
04/05/2020 05:22:52

Hello,--I know converting Gentle Ladies to electric have been done with success but after messing around with this I remembered I had an old Goldberg "Electra" laying around. Never did work with 7 NiCads and car motor so went back to IC. Got it out and it really is nothing but a wide fuselage GL with a 3 piece wing so..........going to LiPo and out runner we will see in a bit how she goes.-----can't be any heaver. I doubt the "Electra" is still being made.-----------------------------Bob in Kansas

Thread: Launch Bungee Spec
19/02/2020 05:30:23

Mel--My high start bungee I made years ago is made of 100 ft of surgical tubing and 400 ft of kite string. The id is 5/16 " and the od is 7/16". It launches my "Bird of Time" 3 meter sailplane with ease, but then again it is a relatively light model. Two meter ships too, but less stretch. It has been two years since I flew it ,but if my memory serves me, about 80 steps ( for around 200 ft or more total stretch) or until the wood starts to creek. Could be wrong on the stretch,--senior moment !

My big question is just how big/heavy my next sailplane can be with this system?

Thread: scale glider chit chat
13/02/2020 05:16:41

I hope my next project will be a scale or semi scale glider. Here in KANSAS in the US my best approach is to use a "high start" which consists of 100 feet of 7/16 inch O.D. surgical tubing and 400 feet of strong kite string. I do not want to start a project only to find out I could not launch it. Right now I am flying my Bird of time on this with no issues but , of course it is rather light even when using ballast.

Any idea how heavy/ wing loading I could get away with? Thanks,,, Bob Chamberlain

Thread: Dynaflite bot
09/02/2020 04:46:40

I need some advice on just how heavy/wing loading a sailplane I can launch with my high start. It consists of 100 feet of 7/16 OD surgical tubing and 400 feet of kite string. It does a nice job with my three meter Bird of Time and if I take it easy, smaller types as well I am looking at some nice scale jobs which I imagine will be heaver and don't want to get into something I can't launch. Here in Kansas a high start or maybe an a/c tow is about all I can count on. Does anyone have a weight or wing loading or example of a nice scale soarer I could start a build on? I really would appreciate any input here. Thanks in advance,----------Bob chamberlain

Thread: Who says flying thermal soarers is boring?
07/02/2020 07:48:03

Hello, I built a "high start" out of 100 feet of 7/16 OD surgical tubing and 400 feet of light kite string. Easily launches my 3 meter BOT (bird of time) and, with care, smaller ships. Of course the BOT is not all that heavy. Any thoughts out there on just how heavy a ship I could go for on my next build? I live in the flat lands of Kansas with limited aero tows so it is always going to be a High Start. Thanks in advance,-------Regards, Bob Chamberlain

Thread: Hitec Optic 6 2.4
18/01/2020 00:26:16

Hello, I just dug out a Hitec 6 Sport that I bought several years ago. I put it aside then because I just could not figure out the instructions. Yes , I am new to "computer" radios and then concentrated on building. Are other radios just the same, or is it me? I took pages and pages of notes and tried to rewrite the manual which smoothed things out a bit.

Very discouraging. Are the higher end Hitec easier to understand? Or are many imports the same?-------

Bob in Kansas

Thread: Members Map
30/12/2019 04:37:23

why not have one for us in the U.S.? I am sure there some who are not a member of a local club ,but read RCM&E

Thread: Identifying Laser Engines
23/12/2019 04:22:11

What do the numbers printed after LASER mean? Is it CC or cubic inch?

Thread: Members Map
17/12/2019 07:12:33

is someone working on one for the US?

Thread: Can I have two Life batteries powering my Futaba receiver?
09/12/2019 07:49:42

Hello, I am a little confused with the two batt set up. I am OK about the diodes and Y connectors and how it would isolate a bad batt. What I don't understand ( pencil and paper at the ready) is how would I charge the two batts? It would seem to me that I would need to have two charge ports on the side of the fuselage. This would require an extra wire from the charge ports on the outside of the fuselage to each batt in order to charge each one-----right?---what am I missing? Bob C

Thread: Thermik Joe
08/12/2019 04:48:39

Hi Bernd,--Although the "spoilers" not doubt, did add a bit of drag their main purpose on the top of the wing was to kill lift on the inboard 1/3 of the wing. I coupled them to the throttle channel and on landing just pulled back on the " throttle' stick just like one would slow the engine down on a power ship. The designer did a good job as there was no pitch change doing this! ------------------Bob C I Kansas, USA

05/12/2019 22:32:20

Many years ago I bought from Dynaflight (I think) a nice four foot 3 channel glider which did have spoilers called the Apogee. After flying my first glider ( a Gentle Lady) it was a bit of a revelation . An Eplore (spelling)205 airfoil made it a bit faster but I did enjoy the spoiler which did not change the pitch. I think I will go with spoilers on my next scratch built.---Bob C

Thread: Playboy Senior
27/11/2019 05:09:36

Hello, I am in the course of building a FlyingQuaker with a 4 foot wing span from plans. I finished the wing and the fuse is still in the jig, so no weight figures as yet. The plans call for a .15/.20 two stroke. Does this sound about right? I do have an OS .15 at hand. The bigger sizes seem a bit too large. Has anyone built one and ,if so, what size did you use? ____ I would like to use Trexler wheels ( if they are still available) as this might be helpful in WT/Bal.--------Bob in Kansas.

Thread: What does your wife or significant other half think of your hobby?
23/11/2019 02:56:28

#1 Wife----don't have this creature that I am aware of

#2 as far as I can remember, I do have a bunch of planes

#3 gave myself permission to go fly tomorrow

Thread: How many flyable aircraft do you have ?
07/11/2019 02:33:51

three:----Quaker Flash, old Greatplains Sportster (65 four stroke), and a 1/5 scale Cub. Upgrading all to newer servos. -----Bob in Kansas

Thread: SLEC Astro Hog 20cc
27/10/2019 04:11:36

Hello,--speaking of SLEC,- I can not seem to contact them from the U.S. about a balsa stripper. Their address ends in a(.COM) . I saw in a recent RCM&E a line drawing of this balsa stripper like the one I bought years ago . It consists of a meter long "U" shaped metal channel in which a holder draws a rather long (2&3/4) inch surgical blade. Any blades I can come across over here will not click into the holder. Any ideas of how I can E-mail them for new blades? Thanks,----Bob

Thread: Trouble contacting Laser engines
16/10/2019 02:19:01

I am having similar problems contacting advertisers from here I the U.S. The SLEC E-mail won't work and it has a dot com in the address. In the Special Issue of RCM&E, page 23 ,fig 2 has a line drawing of a balsa stripper I bought years ago which uses a surgical blade to strip blanks of balsa, but I need a couple of new blades. Any ideas how to contact Slec from over here or to get some blades? I could modify it to use X-acto but I would rather get the long style the unit uses. Regular surgical blades, about the size of X-acto ,are too short and slip around. The blades I need are about 3 inches long and are secure in the housing . Any thoughts? Thanks,---Bob

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