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by rdw777 Tue Sep 26, 2023 2:21 pm
Cox Engine of The Month
September-2023
balogh's

"Beefed up old stock 290 on my Quickie100 RC after plenty of airtime hours..."

PAST WINNERS
balogh's

"Beefed up old stock 290 on my Quickie100 RC after plenty of airtime hours..."

PAST WINNERS
Slabby things often referred to as "Silhouettes"
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Re: Slabby things often referred to as "Silhouettes"
Ian, Is that the recommended placement/design of the landing gear?


The top of the struts look real close to the underside of the wing. A hard landing might crack the sheeting above. The support-plate between the gear-wire and fuse-bottom is a good design.. but when the struts "spread" on landing.. the top of them might spring "up" enough to make contact.
Maybe there's more clearance than it looks, from the pics..? A simple safeguard would be to attach a horizontal piece of music-wire across; just below the bottom clamp.. by Silver-soldering it to both struts. Wire gear will bend.. and the wire on yours looks a bit small in diameter for the model.. and the unsupported length of the legs IMO.
Here's a couple pics of one of my models that has this application.

Not my best example of soldering.. but it held-up through dozens of flights.. and is still solid today.

This mod. would help your model to track straighter on take-off.. as well as keeping the legs from "spreading-apart".. which could cause the prop to strike the ground.
Having to frequently bend the gear back-straight, will stress/loosen the upper-binding. Just some food for thought...


The top of the struts look real close to the underside of the wing. A hard landing might crack the sheeting above. The support-plate between the gear-wire and fuse-bottom is a good design.. but when the struts "spread" on landing.. the top of them might spring "up" enough to make contact.
Maybe there's more clearance than it looks, from the pics..? A simple safeguard would be to attach a horizontal piece of music-wire across; just below the bottom clamp.. by Silver-soldering it to both struts. Wire gear will bend.. and the wire on yours looks a bit small in diameter for the model.. and the unsupported length of the legs IMO.
Here's a couple pics of one of my models that has this application.

Not my best example of soldering.. but it held-up through dozens of flights.. and is still solid today.

This mod. would help your model to track straighter on take-off.. as well as keeping the legs from "spreading-apart".. which could cause the prop to strike the ground.
Having to frequently bend the gear back-straight, will stress/loosen the upper-binding. Just some food for thought...
Re: Slabby things often referred to as "Silhouettes"
The Gazelle wasn't designed with landing gear - this is one of my afterthoughts and I put it where it would fit.
I could say that I only intend to do perfect landings
but I will follow your advice and put a cross brace on it.
My recent batch of piano wire is quite brittle - it is more likely to snap than bend!
I could say that I only intend to do perfect landings

My recent batch of piano wire is quite brittle - it is more likely to snap than bend!
ian1954- Diamond Member
- Posts : 2688
Join date : 2011-11-16
Age : 69
Location : England
Re: Slabby things often referred to as "Silhouettes"
ian1954 wrote:The Gazelle wasn't designed with landing gear - this is one of my afterthoughts and I put it where it would fit.
I could say that I only intend to do perfect landingsbut I will follow your advice and put a cross brace on it.
My recent batch of piano wire is quite brittle - it is more likely to snap than bend!
Really..

Do you have any wire left-over from the gear-stock? If so; I'd use that. Cut it to a length 1" longer than you need for the brace.. bend your angles down.. 1/2" ea. side to match the angle of your struts, bind-it with copper-wire and solder-it.
Greased-landings are illusive.. They're great when they happen.. but a hard landing can twist wire-gear like a pretzel. Without enough support.. the fuse could be damaged.. or even worse.. the wing. A strut/wheel could deflect upward.. and take-out a rib-bay.

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» Wonderful things! Wonderful things!
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» McCutchen Wing AKA Charibdis
» Coved-19 and how it affects life
» Help! Before I do stupid things.
» All good things come to an end
» McCutchen Wing AKA Charibdis
» Coved-19 and how it affects life
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