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Search: Posts Made By: pmullen503
Forum: Scratch and Kit Built Aircraft 12-15-2014, 04:02 AM
Replies: 51
Views: 1,082
Posted By pmullen503
Amazing planking work with thin Depron!

Amazing planking work with thin Depron!
Forum: Scratch and Kit Built Aircraft 12-15-2014, 03:58 AM
Replies: 31
Views: 667
Posted By pmullen503
Outstanding! Good luck with the maiden!

Outstanding! Good luck with the maiden!
Forum: General Electric Discussions 12-12-2014, 07:00 PM
Replies: 40
Views: 610
Posted By pmullen503
If you have planes with very different speeds,...

If you have planes with very different speeds, some trying to do aerobatics, you increase the risk of mid airs. We often have 6 up at a time at our warbirds event but everyone has a spotter and...
Forum: General Electric Discussions 12-12-2014, 05:39 PM
Replies: 40
Views: 610
Posted By pmullen503
Seriously, fly alone unless it's with other...

Seriously, fly alone unless it's with other planes and pilots (you trust) just doing circuits. If someone is practicing their pattern flying, give them the field. If turbines are flying, wait till...
Forum: Electric Ducted Fan Jets 12-10-2014, 07:48 PM
Replies: 12
Views: 201
Posted By pmullen503
Me too! If a pack will stay reasonably balanced,...

Me too! If a pack will stay reasonably balanced, just can't supply high current any more, I find them useful for all sorts of things.

I needed a higher voltage supply for a long hotwire and used...
Forum: Scratch and Kit Built Aircraft 12-10-2014, 01:24 AM
Replies: 51
Views: 1,082
Posted By pmullen503
Impressive!

Impressive!
Forum: Scratch and Kit Built Aircraft 12-09-2014, 01:01 AM
Replies: 31
Views: 667
Posted By pmullen503
Catapult? Especially with a low thrust, probably...

Catapult? Especially with a low thrust, probably a little nose heavy on the maiden airplane. You're up to flying speed almost immediately.

Otherwise, a skillful assistant to handle the toss so...
Forum: Scratch and Kit Built Aircraft 12-06-2014, 02:57 PM
Replies: 31
Views: 667
Posted By pmullen503
Have you run up the fan to get an idea of the...

Have you run up the fan to get an idea of the thrust?
Forum: Pattern aircraft 12-05-2014, 10:45 PM
Replies: 31
Views: 366
Posted By pmullen503
Sounds like adequate power with either setup to...

Sounds like adequate power with either setup to fly safely. Whether you need 160 W/lb will depend on what kind of flying you like to do and the airframe itself. You may prefer less power with longer...
Forum: Scratch and Kit Built Aircraft 12-01-2014, 09:04 PM
Replies: 51
Views: 1,082
Posted By pmullen503
AWESOME! I hope there is enough thrust to make...

AWESOME! I hope there is enough thrust to make the project viable.
Forum: Events, Shows and Fun Fly's - Electric Airplanes 11-26-2014, 08:12 PM
Replies: 13
Views: 254
Posted By pmullen503
It DID happen this year at the EAA fly in!

It DID happen this year at the EAA fly in!
Forum: Scratch and Kit Built Aircraft 11-20-2014, 09:45 PM
Replies: 75
Views: 2,034
Posted By pmullen503
Extruded or expanded polystyrene will be much...

Extruded or expanded polystyrene will be much easier to work with.

Now that you can cut your own wings you'll realize the possibilities that skill gives you.
Forum: Power Systems 11-17-2014, 09:03 PM
Replies: 29
Views: 497
Posted By pmullen503
I would cut slot in the foam and inlay a piece of...

I would cut slot in the foam and inlay a piece of plywood (parallel to the motor mount) as far back from the firewall as my longest screws would reach. Then glue in the plywood and run my screws...
Forum: Scratch and Kit Built Aircraft 11-13-2014, 02:36 AM
Replies: 59
Views: 1,168
Posted By pmullen503
Let it as is, that might at least save the servo...

Let it as is, that might at least save the servo and mount. If you had a piece of wood that the strut went through, and let that take any fore and aft or side forces, that might beef it up enough. ...
Forum: Scratch and Kit Built Aircraft 11-12-2014, 04:10 PM
Replies: 59
Views: 1,168
Posted By pmullen503
Clever. The gear will probably rotate backwards...

Clever. The gear will probably rotate backwards in the servo adjusters on a hard landing. Might work, but make it so you can change it if it doesn't.
Forum: Off Topic Chit Chat 11-06-2014, 02:14 PM
Replies: 15
Views: 341
Posted By pmullen503
Good job! I've fixed nearly every major...

Good job! I've fixed nearly every major appliance I have at one point or another. Probably saved thousands over the years.
Forum: Scratch and Kit Built Aircraft 10-29-2014, 08:36 PM
Replies: 23
Views: 652
Posted By pmullen503
Really nice.

Really nice.
Forum: Power Systems 10-29-2014, 08:33 PM
Replies: 24
Views: 470
Posted By pmullen503
If it were mine I'd go with regular flaps in the...

If it were mine I'd go with regular flaps in the scale positions. Split flaps are good for adding drag to slow down a model quickly when landing but regular flaps are better at providing more lift...
Forum: Scratch and Kit Built Aircraft 10-29-2014, 03:42 PM
Replies: 75
Views: 2,034
Posted By pmullen503
I'm on the road right now or I would send you a...

I'm on the road right now or I would send you a photo, but I've used a piece of copper wire epoxied to my template as an "on ramp".

RE. hand guided cutting. I have had some success cutting highly...
Forum: Power Systems 10-29-2014, 03:22 PM
Replies: 24
Views: 470
Posted By pmullen503
Does it have flaps? Flaps will get your landing...

Does it have flaps? Flaps will get your landing speeds down easier than trying to take weight off of an already built model.
Forum: Scratch and Kit Built Aircraft 10-28-2014, 05:09 AM
Replies: 83
Views: 3,397
Posted By pmullen503
Still messing with the %#&$ gear doors when I...

Still messing with the %#&$ gear doors when I left! I've been away on business for a couple weeks but I'll be home in a another week and back to work. I've decided to use a servo for the nose gear...
Forum: Power Systems 10-27-2014, 05:06 AM
Replies: 24
Views: 470
Posted By pmullen503
Your problem here is a very high >30 oz/ft^2 wing...

Your problem here is a very high >30 oz/ft^2 wing loading. This gives a high stall speed of around 30 mph (if I interpret your numbers are correctly.) That is causing the warnings from Motocalc.
...
Forum: Scratch and Kit Built Aircraft 10-27-2014, 04:49 AM
Replies: 75
Views: 2,034
Posted By pmullen503
A house dimmer to a 24VAC transformer at your...

A house dimmer to a 24VAC transformer at your local home center will work fine for a bow up to around 30" and will be much safer than 120V AC. You'll need one rated for HVAC, not just a doorbell.
Forum: Foamies 10-27-2014, 04:44 AM
Replies: 14
Views: 717
Posted By pmullen503
Styrospray needs moisture from the air to cure,...

Styrospray needs moisture from the air to cure, so thin layers work best. It's definitely not like an epoxy that will cure inside a mold.
Forum: Scratch and Kit Built Aircraft 10-26-2014, 07:17 AM
Replies: 75
Views: 2,034
Posted By pmullen503
I like to use separate upper and lower templates...

I like to use separate upper and lower templates for root an tip ( 4 templates in all). That way you can have nice gentle on and off ramps for the wire. I cut from LE to TE because the LE is usually...
Forum: Scratch and Kit Built Aircraft 10-22-2014, 04:30 AM
Replies: 75
Views: 2,034
Posted By pmullen503
Been there, done that, but my brushed ESC is only...

Been there, done that, but my brushed ESC is only good to about 14V and I needed over 40V in that set up.

But if you have that laying around, you can build a respectable (if somewhat short) set up...
Forum: Scratch and Kit Built Aircraft 10-21-2014, 02:36 PM
Replies: 75
Views: 2,034
Posted By pmullen503
I needed a really long (>50") bow to cut some...

I needed a really long (>50") bow to cut some wings but didn't have a suitable power supply. I connected 4 3s lipos in series and through a combination of the right wire diameter and length I found...
Forum: Support & Suggestions 10-20-2014, 02:27 AM
Replies: 24
Views: 598
Posted By pmullen503
I'm gonna vote for Aloft Hobbies. I got one of...

I'm gonna vote for Aloft Hobbies. I got one of the early Taranis Tx's. Wayne frequently went "above and beyond the call of duty" to support us early adopters.
Forum: Scratch and Kit Built Aircraft 10-19-2014, 12:23 AM
Replies: 70
Views: 6,466
Posted By pmullen503
Soooo Sweet!

Soooo Sweet!
Forum: Electric Ducted Fan Jets 10-01-2014, 10:17 PM
Replies: 29
Views: 1,384
Posted By pmullen503
Good looking airplane for just a "proof of...

Good looking airplane for just a "proof of concept" airframe. Looks reasonably robust too which is good.

I did a Do-435 semi profile to test prop plus edf once. It broke in half on the maiden!
Showing results 1 to 30 of 500

 
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