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Showing results 1 to 30 of 205
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Search: Posts Made By: fhhuber
Forum: Special Interest Aircraft Yesterday, 10:57 AM
Replies: 18
Views: 467
Posted By fhhuber
The lift is from the airfoil effects. A "wing"...

The lift is from the airfoil effects. A "wing" (rotor is just a rotary wing) for a glider will typically be at slight negative incidence in level flight. Part of the lift is then pulling forward...
Forum: General Electric Discussions 12-14-2014, 05:55 PM
Replies: 22
Views: 368
Posted By fhhuber
Servos... yes and no. Old version Airtronics...

Servos... yes and no.

Old version Airtronics used negative in center pin and just about everyone else since Futaba changed to the J plug (exposed male pins on the servo lead) has used + in...
Forum: General Electric Discussions 12-13-2014, 01:21 PM
Replies: 22
Views: 368
Posted By fhhuber
FG is getting a bit extreme on the old stuff...

FG is getting a bit extreme on the old stuff list...

That series dates back to when we changed over from wide band to narrow band. If it has the old style servo plugs with exposed pins on the...
Forum: General Electric Discussions 12-13-2014, 04:43 AM
Replies: 22
Views: 368
Posted By fhhuber
The coverings can get brittle with age and sun...

The coverings can get brittle with age and sun exposure. Some just age will do it stored in the factory box. "Real Monokote" requires heat and/or sun exposure to get brittle.

Give it a...
Forum: Electric Ducted Fan Jets 12-10-2014, 10:33 AM
Replies: 12
Views: 192
Posted By fhhuber
It is also generally agreed that you don't want...

It is also generally agreed that you don't want to cycle a LiPo just to cycle it... They have no memory issue at all.

Proper care is to store at or near 3.7 v/cell in a cool place, but don't...
Forum: Electric Ducted Fan Jets 12-01-2014, 06:26 AM
Replies: 51
Views: 492
Posted By fhhuber
Different ESCs have different indication of...

Different ESCs have different indication of failure to communicate with the RX (or no valid position info coming from RX to the ESC, which indicates RX fail or no communication with TX)

The one...
Forum: Hi-Performance and Sailplanes 11-29-2014, 10:12 AM
Replies: 12
Views: 312
Posted By fhhuber
I used to spin the 2 ch Gentle Lady out of...

I used to spin the 2 ch Gentle Lady out of thermals all the time...

Its a matter of technique, knowing how tight the spin can be and when to pull out.

I spent 5 years flying slope and high...
Forum: Electric Ducted Fan Jets 11-28-2014, 09:21 AM
Replies: 24
Views: 394
Posted By fhhuber
BTW... modern chargers are going to keep you...

BTW... modern chargers are going to keep you very safe as long as you don't block their cooling.

Many chargers have cooling holes on the bottom or use the bottom case as a heat sink and thus if...
Forum: Electric Ducted Fan Jets 11-28-2014, 09:03 AM
Replies: 51
Views: 492
Posted By fhhuber
Servo jump but ESC does not actually arm and no...

Servo jump but ESC does not actually arm and no control with PPM/FM/PCM means the TX and RX are not communicating

Loose/bad crystal
Wrong frequency
PCM RX with PPM TX setting or PPM RX with PCM...
Forum: Electric Ducted Fan Jets 11-28-2014, 03:06 AM
Replies: 24
Views: 394
Posted By fhhuber
Doesn't really take much to be safe... Keep...

Doesn't really take much to be safe...

Keep the charging area away from easily flamable stuff by at least a foot... and set the CHARGER and the batteries on ceramic tiles... you'll be fine.

I...
Forum: Electric Ducted Fan Jets 11-27-2014, 09:08 PM
Replies: 51
Views: 492
Posted By fhhuber
Do a rebind (with prop removed...) anyway.

Do a rebind (with prop removed...) anyway.
Forum: Electric Ducted Fan Jets 11-27-2014, 07:31 PM
Replies: 51
Views: 492
Posted By fhhuber
The ESC beeps indicate battery connected and ...

The ESC beeps indicate battery connected and ready to arm. Those occur before it even goes looking for RX signal in most cases.. THEN there is the "happy dance" beep that some give indicating...
Forum: Electric Ducted Fan Jets 11-27-2014, 04:53 AM
Replies: 51
Views: 492
Posted By fhhuber
Appx 120F is recommended temp to preheat packs...

Appx 120F is recommended temp to preheat packs for best instant current output... its not going to hurt your pack if that's where the temp sensor shuts down the charge.

Above 140 you are damaging...
Forum: General Electric Discussions 11-07-2014, 05:35 AM
Replies: 2
Views: 156
Posted By fhhuber
Those are slightly modified 4mm "banana" bullets...

Those are slightly modified 4mm "banana" bullets in a plastic shell. The mod is only a ridge/groove to lock it into the plastic, Standard 4mm "banana" bullets fit.

Its fine to just have the...
Forum: Multi-Rotors 11-03-2014, 06:34 AM
Replies: 27
Views: 707
Posted By fhhuber
Worst case ... the quad having uneven response...

Worst case ... the quad having uneven response causes it to randomly go flying off in an unpredictable direction, which could be straight at yourself and you get to meet a flying Cuisinart.
...
Forum: RC Radios, Transmitters, Receivers, Servos, gyros 10-23-2014, 02:18 PM
Replies: 15
Views: 255
Posted By fhhuber
Expo is a highly personal setting... what is...

Expo is a highly personal setting... what is great for one person can be annoying or even dangerous for another.

#1, remember that half the radios you need + expo and the other half you need -. ...
Forum: Brushless Motor Construction 10-02-2014, 03:33 PM
Replies: 20
Views: 506
Posted By fhhuber
Its really all about paying attention to details...

Its really all about paying attention to details and packing as much copper as you can fit into the the stator.
Air is wasted space. More copper = more power.
...
Forum: Power Systems 09-22-2014, 08:27 PM
Replies: 8
Views: 314
Posted By fhhuber
Electric does NOT eliminate the chance of single...

Electric does NOT eliminate the chance of single engine out. Many failures are possible including throwing the prop & adapter off the motor.

Avoid turning toward the dead engine side.

Best...
Forum: Electronic Builders Workshop 09-18-2014, 05:49 PM
Replies: 13
Views: 334
Posted By fhhuber
kV is theoretical. You can expect 20% to 30%...

kV is theoretical. You can expect 20% to 30% less under reasonable load.

kV is how fast the motor would turn if frictionless with no load, calculated based on the winding pattern and number of...
Forum: 3D Flying 09-14-2014, 04:13 AM
Replies: 23
Views: 648
Posted By fhhuber
Yep.. I use an APC 12X6 glow prop as a knife at...

Yep.. I use an APC 12X6 glow prop as a knife at the field
Forum: 3D Flying 09-14-2014, 02:18 AM
Replies: 23
Views: 648
Posted By fhhuber
It depends on which wood vs which...

It depends on which wood vs which plastic/composite prop. You will be very hard pressed to find a wood as efficient as an APC E series prop.

Master Airscrew black nylon props... make good paint...
Forum: Sport Planes (Formerly I/C & Gas Conversion) 09-04-2014, 01:20 AM
Replies: 17
Views: 685
Posted By fhhuber
Try: Reflex the ailerons UP instead of...

Try:

Reflex the ailerons UP instead of lowering them On many models (especially tapered wing with constant chord aileron or ailerons that do not extend into the center 1/3 of the wing) this works...
Forum: General Electric Discussions 08-27-2014, 02:41 PM
Replies: 12
Views: 349
Posted By fhhuber
If you still have the damaged cowl it CAN be made...

If you still have the damaged cowl it CAN be made serviceable again... I crushed one fiberglass cowl shortening it from 12 in long to 2 in long and with a couple hours work i had it looking like...
Forum: Scratch and Kit Built Aircraft 08-15-2014, 05:39 PM
Replies: 58
Views: 1,690
Posted By fhhuber
Depends on the covering as to bonding and...

Depends on the covering as to bonding and shrinking temp. You have to consider both the bonding and the shrinking temps.

An option might be "Doculam" which bonds and shrinks slightly cooler than...
Forum: Batteries & Chargers 08-12-2014, 08:52 AM
Replies: 15
Views: 607
Posted By fhhuber
Common big hole cinder block is cheap. Set on...

Common big hole cinder block is cheap. Set on ceramic tile with holes up... cap with a tile... its pretty well going to contain any LiPo fire. Estimated under $10.
Forum: Scratch and Kit Built Aircraft 08-12-2014, 08:50 AM
Replies: 58
Views: 1,690
Posted By fhhuber
For a certain set of aircraft sizes the square CF...

For a certain set of aircraft sizes the square CF tube spine can work well. Generally under 1 lb I expect. Larger models the size CF tube needed would get expensive.
Forum: Batteries & Chargers 08-11-2014, 11:27 PM
Replies: 15
Views: 607
Posted By fhhuber
Just placing the charger and battery on 1 ft...

Just placing the charger and battery on 1 ft square ceramic tiles (about $1 each) can go a long way in making charging safer.
Forum: Scratch and Kit Built Aircraft 08-09-2014, 10:31 PM
Replies: 58
Views: 1,690
Posted By fhhuber
Foam is a POSSIBLE way to go. Not necessarily...

Foam is a POSSIBLE way to go. Not necessarily the best way. Its simply been proven already that you can have a plane that can have 2 different configurations quickly interchangeable without excess...
Forum: Scratch and Kit Built Aircraft 08-09-2014, 03:44 AM
Replies: 16
Views: 411
Posted By fhhuber
EPO foam is the next best thing to teflon. Stick...

EPO foam is the next best thing to teflon. Stick some toothpicks in at assorted angles to give the glue something to stick to that it won't just peel off of.
Forum: Scratch and Kit Built Aircraft 08-06-2014, 05:10 PM
Replies: 58
Views: 1,690
Posted By fhhuber
One reason for the weak slow stick mount was...

One reason for the weak slow stick mount was weight savings. Powered as originally designed and flown the way it was intended it worked just fine.

They didn't really intend it for the abuse of RC...
Showing results 1 to 30 of 205

 
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