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Search: Posts Made By: gyrocptr
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Forum: Aerodynamics
10-18-2020, 08:02 PM
Replies: 45
Views: 1,904
Posted By gyrocptr

EAA article suggests toe-out for the wheels. ...

EAA article suggests toe-out for the wheels. pages 3-5
Forum: Kit Building
10-17-2020, 08:30 PM
Replies: 3
Views: 459
Posted By gyrocptr

iron-on laminating film. sold by the linear ft. ...

iron-on laminating film. sold by the linear ft.
https://alofthobbies.com/new-stuff-laminating-films.html
Forum: Kit Building
09-24-2020, 08:17 PM
Replies: 1
Views: 219
Posted By gyrocptr

Suggestion: Download pdf-file of the plans for...

Suggestion: Download pdf-file of the plans for the full-size 96inch-span Lanzo Bomber from Outerzone:
https://outerzone.co.uk/search/results.asp?keyword=lanzo+bomber
Then in the print-function...
04-13-2020, 03:07 PM
Replies: 10
Views: 4,670
Posted By gyrocptr

https://outerzone.co.uk/plan_details.asp?ID=7614

https://outerzone.co.uk/plan_details.asp?ID=7614
02-27-2020, 07:56 PM
Replies: 12
Views: 992
Posted By gyrocptr

From my experience: if the current stab position...

From my experience: if the current stab position produces no pitch-down-couple with the application of rudder, then lowering the stab may induce a pitch-up couple (toward the canopy) when rudder is...
02-27-2020, 09:24 AM
Replies: 12
Views: 992
Posted By gyrocptr

The Hammer 40 is a “classic” style...

The Hammer 40 is a “classic” style pattern/aerobatic airplane. It was built in many different sizes. (Tack Hammer— Sledge Hammer: 1/2A — gas engine). If you lengthen it as much as you plan, it will...
02-20-2020, 09:22 PM
Replies: 12
Views: 992
Posted By gyrocptr

Increasing the fuselage length increases the...

Increasing the fuselage length increases the polar-mass-moment-of-inertia (increased resistance to rapid changes in direction). I would expect the straight-fight to be "smoother", and the spins and...
Forum: Kit Building
02-06-2020, 09:42 PM
Replies: 61
Views: 4,480
Posted By gyrocptr

https://www.aircraftspruce.com/menus/cs/randolphco...

https://www.aircraftspruce.com/menus/cs/randolphcoatings.html

Randolph aircraft dope.
Forum: Glow Engines
01-28-2020, 09:28 PM
Replies: 16
Views: 679
Posted By gyrocptr

Have you checked that the head screws and...

Have you checked that the head screws and back-plate screws are tight?
Replies: 4
Views: 3,019
Posted By gyrocptr

Digital servos? High accuracy and torque, but...

Digital servos? High accuracy and torque, but they can draw a lot more current than analog servos, especially if there is drag in the linkages (stall current can be 1A for each servo). Not a "switch...
09-26-2018, 08:23 PM
Replies: 2
Views: 337
Posted By gyrocptr

My practice: Set proper CG with heaviest battery...

My practice: Set proper CG with heaviest battery and use the heaviest (more powerful) battery.
Power is your friend, especially on takeoff. Better to have it and don't need it, than to need it and...
09-04-2018, 07:07 AM
Replies: 5
Views: 1,231
Posted By gyrocptr

Battery hatch between landing gear and cowl. Link...

Battery hatch between landing gear and cowl. Link to photos.
https://www.rcgroups.com/forums/showpost.php?p=6529581&postcount=1
Replies: 1
Views: 516
Posted By gyrocptr

Sound comes from the motor windings. Loss of...

Sound comes from the motor windings. Loss of sound and motor stutter =>Perhaps a ESC-motor connection has gone bad... broken wire under the shrink tubing, broken solder joint, corrosion/contamination...
06-15-2018, 09:01 PM
Replies: 1,228
Views: 240,712
Posted By gyrocptr

I've built a Kaos wing with tack-glued stand-offs...

I've built a Kaos wing with tack-glued stand-offs to hold the ribs "level". Laying the rib on graph paper helps speed up the process of properly positioning the stand-off. Space the stand-off far...
Forum: Glow Engines
02-23-2018, 10:33 AM
Replies: 35
Views: 1,675
Posted By gyrocptr

Engine should run fine without muffler. More...

Engine should run fine without muffler. More power and very loud. Muffler is to reduce sound. Downside is that the muffler, without a tuned exhaust system, also reduces power. Upside is that back...
Forum: Glow Engines
02-22-2018, 07:49 AM
Replies: 35
Views: 1,675
Posted By gyrocptr

How about "attaching" a 90deg bend/extension in...

How about "attaching" a 90deg bend/extension in the muffler outlet tube?
Forum: Glow Engines
02-21-2018, 10:03 PM
Replies: 35
Views: 1,675
Posted By gyrocptr

Muffler outlet aligned with engine exhaust port?...

Muffler outlet aligned with engine exhaust port? WAGuess: high-speed exhaust at high throttle passing straight thru to muffler outlet lowers pressure at the muffler pressure tap. Most mufflers force...
01-04-2018, 05:54 PM
Replies: 1,228
Views: 240,712
Posted By gyrocptr

My 2cents: If you're sanding down a rib-stack...

My 2cents: If you're sanding down a rib-stack between the root and tip templates, the root rib (balsa) should be placed on the outboard faceof the root template. Otherwise it will be too small when...
12-24-2017, 11:29 AM
Replies: 1,228
Views: 240,712
Posted By gyrocptr

My 2cents: If you believe in Murphy's Law, the...

My 2cents: If you believe in Murphy's Law, the probability of getting exactly 0-0 engine offset is in the range of zero-none. If you target 1degree down and 1degree right, you can eliminate the...
12-17-2017, 10:59 AM
Replies: 2
Views: 317
Posted By gyrocptr

SunFli 4-20 ???

SunFli 4-20 ???
Forum: Sport Flying
12-16-2017, 07:10 PM
Replies: 111
Views: 11,877
Posted By gyrocptr

Paper tube extending thru holes in the ribs will...

Paper tube extending thru holes in the ribs will help to run servo wires to center of wing. Roll strip of paper into narrow tube, snake thru holes cut in ribs, let tube expand open to the diameter of...
12-13-2017, 11:36 AM
Replies: 10
Views: 2,370
Posted By gyrocptr

Thats actually a 60A ESC. I was wondering how you...

Thats actually a 60A ESC. I was wondering how you were going to manage with only 20A.:)
Forum: Sport Flying
12-05-2017, 03:54 PM
Replies: 111
Views: 11,877
Posted By gyrocptr

I've done it. But also made major mods to...

I've done it. But also made major mods to structure/appearance reduce total flying weight (including 3S-4000mah battery) to 42oz.
Forum: Kit Building
12-03-2017, 01:29 PM
Replies: 3
Views: 454
Posted By gyrocptr

Info at this link may be helpful. ...

Info at this link may be helpful.

https://www.rcgroups.com/forums/showthread.php?2395840-GP-Sun-fli-4-20-plans
Forum: Sport Flying
09-06-2017, 03:02 PM
Replies: 3
Views: 1,638
Posted By gyrocptr

a source for the 4-60 plans through AMA's plan...

a source for the 4-60 plans through AMA's plan service. It was featured in the January 1986 issue of Model Aviation magazine. Current price is $24.
AMA plan list: 4-60: 70 Sportster. Two sheets...
Showing results 1 to 25 of 136
 


 
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