Search: Posts Made By: fhhuber
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11-02-2015, 04:02 PM
Replies: 106
Views: 21,103
Posted By fhhuber

While retracts would be cool... The...

While retracts would be cool...

The structural changes to the fuselage would be considerable resulting in a large weight gain to a model that is already heavy. Its even worse than a scale...
10-28-2015, 08:10 PM
Replies: 106
Views: 21,103
Posted By fhhuber

You can always go to 2x 3S packs in series and...

You can always go to 2x 3S packs in series and put them one behind the other...

the rear one might not even reach back to the wing tube.
10-27-2015, 05:41 PM
Replies: 106
Views: 21,103
Posted By fhhuber

The average glow trainer cruises appx 55 mph. 70...

The average glow trainer cruises appx 55 mph. 70 is easy to achieve.

The PTS F-22, with the right prop and a good .46, couldn't quite make 100 in level flight.
10-25-2015, 11:44 PM
Replies: 106
Views: 21,103
Posted By fhhuber

You can play fun games with mixes if you put the...

You can play fun games with mixes if you put the elevators on separate channels.

But.. you will be adding the weight of another servo in a model that is already a bit heavy.

An alternative is...
10-25-2015, 10:45 PM
Replies: 106
Views: 21,103
Posted By fhhuber

I didn't name it the Sabre Dance... Watch...

I didn't name it the Sabre Dance...

Watch the clip... THEY call it the Sabre Dance
10-25-2015, 08:59 PM
Replies: 106
Views: 21,103
Posted By fhhuber

Yep... as expected bad snap-over at stall and a...

Yep... as expected bad snap-over at stall and a bit of the "Sabre Dance" issue.

Sabre Dance is the tips stalling before the rest of the wing and due to wing shape moving center of lift forward...
10-21-2015, 04:49 PM
Replies: 106
Views: 21,103
Posted By fhhuber

But... I never had the hat or goggles...

But... I never had the hat or goggles...
10-21-2015, 02:53 PM
Replies: 106
Views: 21,103
Posted By fhhuber

"If you can fly a corsair, a Pitts and know how...

"If you can fly a corsair, a Pitts and know how to use the rudder..."

Corsairs and Pitts specials are anything but trainers and beginners rarely touch the rudder except to taxi.

I've had people...
10-21-2015, 12:05 AM
Replies: 106
Views: 21,103
Posted By fhhuber

http://www.hobbyking.com/hobbyking/store/__28983__...

http://www.hobbyking.com/hobbyking/store/__28983__Alloy_Oleo_Nose_Strut_with_Wheel_and_Rubber_Tire_111mm_Length_4mm_Mounting_Pin_.html

Found the exact trailing link that was on the nose-gear of...
10-21-2015, 12:02 AM
Replies: 106
Views: 21,103
Posted By fhhuber

Nope... Maybe if you put on a spring action...

Nope... Maybe if you put on a spring action trailing link....

http://www.altecare.com/struts.htm

Note... this particular one in the link is EXPENSIVE

I have 2 from trike gear retract sets...
10-20-2015, 10:50 PM
Replies: 106
Views: 21,103
Posted By fhhuber

Well... it has bad habits when not in full...

Well... it has bad habits when not in full trainer configuration.

The add-on "wing droops", flaps and forward CG cure the worst of it.

But in advanced configuration (flaps up), especially with...
10-19-2015, 06:44 PM
Replies: 106
Views: 21,103
Posted By fhhuber

What I meant about "not worth it" is the complex...

What I meant about "not worth it" is the complex system needed for multi-stage Fowler flaps and retractable leading edge slats. That gets heavy fast.
10-19-2015, 05:04 AM
Replies: 106
Views: 21,103
Posted By fhhuber

Note the simple hinged flaps used on this model...

Note the simple hinged flaps used on this model don't really do much to change minimum airspeed to maintain level flight.
(commonly called stall speed, because slower and it will stall, but it can...
10-19-2015, 04:32 AM
Replies: 106
Views: 21,103
Posted By fhhuber

I saw a PTS F-22 with a .61 glow... it blew the...

I saw a PTS F-22 with a .61 glow... it blew the tailplanes off. A good 6S power system might be more than it can handle.
10-18-2015, 09:58 PM
Replies: 106
Views: 21,103
Posted By fhhuber

Flaps alter the stall characteristic at low...

Flaps alter the stall characteristic at low deflection and high deflection adds drag.

By drooping the trailing edge in the middle you make it more likely for the middle of the wing to stall before...
10-18-2015, 05:04 PM
Replies: 106
Views: 21,103
Posted By fhhuber

Its typical to balance a trainer considerably...

Its typical to balance a trainer considerably more noseheavy in order to force in some added stability.

Noseheavy will help insure the nose drops in a stall and stall recovery will be more rapid...
10-18-2015, 04:32 PM
Replies: 106
Views: 21,103
Posted By fhhuber

Its balanced fine if you can push the tail to the...

Its balanced fine if you can push the tail to the ground and it just drops the nosewheel back to the ground when you let go.

Mains are placed so far forward that its possible for the plane to fly...
10-15-2015, 10:55 AM
Replies: 106
Views: 21,103
Posted By fhhuber

Considering how loosely attached the covering...

Considering how loosely attached the covering usually is on those things... After peeling and checking on potential for lightening you should be able to put the covering back.
(Good idea to iron...
10-09-2015, 07:16 PM
Replies: 106
Views: 21,103
Posted By fhhuber

I kind of expected the battery to end up under...

I kind of expected the battery to end up under the canopy instead of back at the wing tube.

That's normal for all the glow conversions I have done. Stuff the battery where the fuel tank used to...
10-06-2015, 08:54 PM
Replies: 106
Views: 21,103
Posted By fhhuber

too late now... When I run into stuck bolts...

too late now...

When I run into stuck bolts like that, I grind the heads off and then punch out the remains of the bolt with the blind nut..

***********

You wanted that OEM hole in the...
10-05-2015, 04:28 PM
Replies: 106
Views: 21,103
Posted By fhhuber

Full scale Piper Cubs do just fine with less than...

Full scale Piper Cubs do just fine with less than 0.3:1 power:weight.
But they generally aren't put through the HIGH G maneuvers we demand in RC flight.
(the wings would fold up performing what...
10-05-2015, 01:58 PM
Replies: 106
Views: 21,103
Posted By fhhuber

Remember they have a weak place in the forward...

Remember they have a weak place in the forward fuselage and Hanger-9 had a note out about installing some extra wood support in the fuel tank area

(actually needed it to stretch from behind the...
Showing results 1 to 22 of 22


 
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