|Sep 02, 2002, 10:14 AM|
Oh No! Not another Tigermoth thread
Yes, afraid so, just couldn't live without a stock 'Moth for fearless flying.
Started with an unpainted TM, sanded and painted the fuse,
modified the landing gear channels with 3/4 of a cf tube,
the battery compartment was widened and the front was removed,
mounted the cowl with tiny magnets,
made a wire leg and mounted a Sullivan 1/2" wheel to the rudder,
added dental floss flying wires
and did the same landing gear mod that I used on 'moth #1 with the wire "V" tied and CA'd to the legs, foam fairings and rubberband struts.
Weight without batteries is 6.6oz / 185grams. Using 7 cell 370 mah NiMH packs 2.1 oz/57gr or QC 830's. AUW 8.7oz/242gr.
Maiden flight this morning, no surprises, it's a 'moth.
Edited to add this list of mods. Don't know why it took so long to think of putting it in here.
The most important. Don't use the double stick tape. Use Polyurethane or epoxy with microballoons or baking soda on the top wing. And epoxy to hold the bottom wing plastic piece on.
Note:The GWS glue is contact cement and works very well for gluing the fuse halves together. It has to be applied to both pieces and allowed to almost dry before sticking the parts together.
Dont stick tape on the fuse paint when gluing it, wrap it with ribbon or strips of paper.
Cut hinge lines and bevel edges of rudder and elevator before taping hinges with scotch tape.
Trim the rear of the lower wing saddle so the wing fits properly.
Those are the only necessary mods. As far as possible mods, take your pick but remember to keep it light. This is what I did to my Moth, there a plenty of other options available.
I used .040 cf rod on the front and back of the outside struts to stiffen them. (mostly for looks as the curved stock ones drove me nuts)
Added flying wires. (partly for looks, partly for strength, gives the whole structure a lot of rigidity.) Used a piece of scrap plastic glued to the lower wing doubler to hold the inner lower wires. I used dental floss but any light line will work.
Used channel made from carbon fiber tube to reinforce the inside of the landing gear channel. (the thinnest part of the fuse) and the gear slot opening.
Added a steerable tailwheel. made from scrap foam and epoxied to the rudder. There are fancier ones but this works great.
Cut out the sides of the battery compartment to fit battery packs.
Cut out the front of the battery compartment for cooling. And opened the front of the cowl and added a heatsink and paste to the motor .
Used sticks and rubberbands to hold the top wing and cowl on instead of the screws.
Installed light foam wheels 1-11/16" diameter.
And made cockpit sides from scap tail feather foam and added control panels, windscreens and Calvin and Hobbes as pilots.
Recommended accesories to buy: extra 9x7" props, lite foam wheels, heat sink
|Sep 02, 2002, 10:19 AM|
One more, this is a not a real good shot of the runway and my favorite trees for trunk bashing. If you look closely there's little bits of foam at the base of each tree.
Making the runway in a crosswind can be rough on the plane.
Yes the old 'moth is still Alive!
|Sep 02, 2002, 10:29 AM|
Let me be the first to say: BEEEEE-UUU-T-FUL! I love the color scheme.
Now, see what you've done, now you've got me thinking about retiring my original epoxy laden TM. Nope not yet, there are still a few places that don't have epoxy
|Sep 02, 2002, 10:33 AM|
Basket case, I forgot to ask: how did you cut/get 3/3 CF tube?
I've been trying to plan my next TM's landing gear and was
thinking of using tube (alum. ??) to slip a straight wire/cf landing gear into. I didn't think of slicing the tube and just slipping the
gear assembly in that way though. tick tick boink the mind is a going.
|Sep 02, 2002, 10:41 AM|
Looks great! I love the dogfight pic, especially the poor dragonfly in the upper right that seems to be attempting to escape the madness
I've seen the unpainted version on the GWS site but had never seen one before. Did you get it locally?
==how did you cut/get 3/3 CF tube? ==
I use a cutting wheel in my Dremel to cut CF. Not a bad idea to wear a dust mask.
==I've been trying to plan my next TM's landing gear and was
thinking of using tube (alum. ??)==
Don't use aluminum, it bends and deforms too easily. After a few bends it'll break too. CF is the way to go on a landing gear.
|Sep 02, 2002, 10:45 AM|
Thanks Rob and Tres, the cf tube splits very easily with a razor blade, you just start the end and it goes right down in a straight line. Then probonded it into the groove.
I got the unpainted one from Horizon but the LHS should be able to get it.
|Sep 02, 2002, 10:51 AM|
If you don't mind BC, I'm going to steal your new Moth's colour scheme for my Von Baron. Red fuse and white wings look great!
|Sep 02, 2002, 11:00 AM|
heres my attempt at snazzing up my mothy
you cant see from pick but i painted the bottom of the fuse and wings RAF sky blue
so look out and keep your eyes peeled next time your dog fightingcuz the camo moth might just sneak up on you lol
|Sep 02, 2002, 11:04 AM|
I'll be watching for those camo 'moths. Flew with one a couple weeks ago at Belgy's aerodrome.
VonB, I just copied the color scheme from this guy.
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