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March 26, 2017, 08:54:23 AM *
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 on: Today at 07:26:54 AM 
Started by Pete Fardell - Last post by Hepcat
In reply #371, first line I said 'Indoor models'. I meant to say 'scale models'.  It is probably equally true whichever way you read it but I do try to be correct.
As I have picked up my pen again I might as well add a couple more effects of left turns as I see it.  In a small radius turn the outside wing is travelling faster than the inner wing and as lift increases as the square of the speed the right wing will be lifting a lot more than the inner wing, trying to bank the model to the left and tightening the turn even more.  Then of course if the right wing does manage to lift it puts most of the weight of the model onto the inside wheel which adds wheel friction to the left turn effects.  That chap in the cockpit must be saying: 'kick in some right' and let's get this crate in the air. Smiley

 on: Today at 06:33:51 AM 
Started by Art356A - Last post by Glidiator

Got the plans from plan gallery.

How does one make it  turn in a circle indoors. Seems to have no wing offset or fin etc to give turning moment.


 on: Today at 05:57:49 AM 
Started by Art356A - Last post by Glidiator

Looking far the Yvette and Yvettelet plans.

The links given in earlier post of smallflying arts dont seem to work.

Anywhere else I can find it


 on: Today at 05:14:29 AM 
Started by scrowoash - Last post by billdennis747
I had no idea what this model was so I looked it up, and it seems to be a 31" CL trainer, designed for a TD049. Even that seems underpowered  and a Mk1 Bee will barely move it. You will be spending a lot of time running backwards, I think!

 on: Today at 05:00:12 AM 
Started by scrowoash - Last post by scrowoash
Yes I can get Ether. Being involved in agriculture here, the chemical suppliers we deal with are able to supply as a favor.
The other option is John Deere starting fluid which is available here and has the highest Ether content of all starter fluid manufacturers.

 on: Today at 03:41:02 AM 
Started by Pete Fardell - Last post by Jack Plane
Any idea how (the real) Monsieur Chanteloup would have got up into the cockpit?

From forward, by treading on the trailing-edge or with a conveniently to-hand small stepladder?

 on: March 25, 2017, 10:54:44 PM 
Started by Gemmis - Last post by CV-Corsair
It's been some time since there was any action on this thread, but hopefully some members will see my post and respond.

I have downloaded the plan for the Pond Racer, and propose enlarging it to 56" - 60" span, electric power.

Does anybody have any comments on this proposal.

 on: March 25, 2017, 10:34:40 PM 
Started by Crossup - Last post by adanjo
Did you put a clay on the tail? If so, it's easy. Move the wing forward to get the correct C/G.

 on: March 25, 2017, 10:10:45 PM 
Started by MKelly - Last post by MKelly
Left side covered, right side to go.  Covering the side in one piece looks nice, but it's among the most tedious covering jobs I've attempted.  It would be pretty straightforward except for the root rib.  It took several attempts to get a reasonably tight job around that rib - we'll see how many wrinkles pop up when it shrinks...

 on: March 25, 2017, 09:53:55 PM 
Started by Pete Fardell - Last post by Hepcat
Speaking from my well established position of complete ignorance of indoor models but with a lifetime of considering forces that act on things I design I wonder if it would be more sensible to circle to the right so that the torque force did not force the port wing into contact with the ground.  Oh, and I must not forget to say that if the Caudron did not leave the ground at all it would still be an excellent bit of scale modelling that has brought a lot of pleasure to the rest of us already.

 on: March 25, 2017, 09:36:30 PM 
Started by scrowoash - Last post by greggles47
Hi Scrowoash,
How much info do you have about model diesels? Are you aware that you need ether in your fuel. Ether is difficult to access in some countries but is essential in diesel fuel.

 on: March 25, 2017, 08:54:30 PM 
Started by rockiemosley - Last post by calgoddard
The Vanguard P-18 kit is commercially available from Laser-Cut Planes for only $15.



The instructions in this kit are clear, concise, and well illustrated.  The balsa wood is all laser cut and the balsa wood in the kit I built was very good quality.  The wing mounts that set the dihedral are laser cut from plywood and are very strong.

The Vanguard P-18 has a very simple design. Only its wing is adjusted.  It has a wing saddle that can be slid fore and aft to adjust the CG.  The wing saddle can easily be shimmed to adjust the incidence of the wing.  There are no other movable surfaces that can come out of adjustment.  This is crucial to success for MS most students.

Buy the broad blade Ikara prop from Freedom Flight Models (FFM). Cut it down to 14 cm in diameter as shown in the 2017 FFM instructions.

You need to max wing and stab area under the 2017 WS rules to max flight times.  This minimizes wing loading. I think the Vanguard kit does this.

There is no such thing as a Wright Stuff (WS) airplane similar to an F1D airplane.  The latter weighs only 1.4 grams and is much larger in terms of wing span and chord. A WS airplane weighs 7.5 grams and is much smaller.

In WS competition trim, rubber and winding are more important than design as long as the airplane is of conventional design, is built to minimum weight, and maxes the wing and stab area.

 on: March 25, 2017, 08:51:31 PM 
Started by dslusarc - Last post by Olbill
Don't get discouraged about the different power requirements on different days. You have to figure this out every time you fly. My method is to pick a very conservative number for your first flight each day and then adjust from there. Everything can make a difference = air temp, barometric pressure, motor variations - you name it. That first flight is going to determine your direction for the rest of your flying session.

 on: March 25, 2017, 08:51:12 PM 
Started by Olbill - Last post by bjt4888

Thanks very much for the day's update.  I'm sure you'll have a great day tomorrow.

Brian T.

 on: March 25, 2017, 08:43:59 PM 
Started by Olbill - Last post by Olbill
We had 36 fliers for the  first day of West Baden 2017. Temperatures outside were in the low 70's which made for great air inside the dome. Three new AMA Cat 3 records were set. Jake Palmer set a new F1D record at 26:06. Nick Ray set a new F1R record at 28:39. Don Slusarcsyk set a new Autogiro record of 17:30 and then totally crushed his new record with a stupendous time of 21:41.

My own efforts were less productive with a best official LPP time of 13:32 and an 8:04 A6 test flight. Tomorrow I'll be flying A6 and F1M official flights.

 on: March 25, 2017, 08:35:10 PM 
Started by MKelly - Last post by MKelly
I anticipate much fitting and trimming.  The plan is to cover the sides of the cowl along with the fuselage sides, then cover the top, bottom  and front ring of the cowl with separate pieces of tissue.  Last piece will go over the windscreen to represent the framing - will try to cut that as one piece using the windscreen template, but I may have to fall back on tissue strips.

Been working on the first fuselage side - having trouble going around the lower root rib.

 on: March 25, 2017, 08:02:16 PM 
Started by danmellor - Last post by FFmodeller
Well, I've looked at the wing pic a few times now and not felt ill .... maybe it's the fuselage ... or the 'perfect storm' when it all comes together?  Wink

Joking aside ... it's looking good Dan Smiley

 on: March 25, 2017, 07:53:15 PM 
Started by ZK-AUD - Last post by OZPAF
Great fun - hope you missed most of the sheep turds Smiley Nice looking model Mike.

 on: March 25, 2017, 07:18:42 PM 
Started by MKelly - Last post by OZPAF
You make adding the glazing look simple Mike. I'm curious to see how your pre printed tissue fits around the windscreen? A bit of trimming around the bottom of the windscreen on the tissue with a pattern first , I guess?


 on: March 25, 2017, 06:38:45 PM 
Started by DavidJP - Last post by Jack Plane
Apologies for my bleeding diversion.

But why don't you just bin the bad tissue you have and spend a fiver on a couple of sheets or so of silver and red Esaki?

 on: March 25, 2017, 06:27:11 PM 
Started by Pete Fardell - Last post by Pete Fardell
I think the turn-out was pretty good. Certainly Dave Whitehouse seemed very pleased and every table was used.

Finished off Mssr. Chanteloup today, loosely based on this photo which shows him in a trendy woolly balaclava and old style helmet. A motor run revealed that the magnets will not stop him being pinged out by the commotion of the rubber underneath him, so he is now fixed in permanently. However,I can still load a new motor by peering through the nose, although it is a bit of a skiddle. All set for Shawbury tomorrow.

 on: March 25, 2017, 06:26:36 PM 
Started by bgrove - Last post by bgrove
Thank you everyone for the feedback and ideas.  It really is quite fun to share your build and hear other ideas and techniques that could be used.  I find myself learning a lot from all of you. Thanks.

Here are a couple of shots of my progress.  Upper and lower wing mounted.  About a 2 degree incidence.  I'm working on the stringers, flares etc.  All those little places and details that must be in place before covering.

I'll listen to the conversation here about the CG.  I'll let better minds figure that out and follow your finding  Smiley


 on: March 25, 2017, 06:04:53 PM 
Started by chrislgl - Last post by daveh
Thanks Chris; food for thought.


 on: March 25, 2017, 05:51:54 PM 
Started by rockiemosley - Last post by Ratz
Thanks George.

Here's a link to the new thread.


 on: March 25, 2017, 05:33:25 PM 
Started by rockiemosley - Last post by rockiemosley
I am trying to build a competitive airplane for Science Olympiad.  I have built 4 from a kit and am ready for something more competitive...  similar to the F1D planes.  I am wondering if I should just go with some plans from somewhere, or design something that makes the most of the allowable dimensions.    Dimensions allowed are wingspan 45cm,chord 11cm, stabilizer span 22.5 and stab chord 8.5....all those powered by a 14 cm propeller.  Most of the plans I have found suggest a much bigger propeller....so I am wondering if a 14 cm propeller would power a plane built to the above dimensions or would I be better off building a smaller airplane due to the small propeller, or just build the biggest wing I can according to the rules and go for it...?  I have one of those Icara propellers to build this around.  I am assuming some magic ratio of wing area, and stabilizer area to propeller area is in play here.   Thanks...

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