Me-262 A-1a (Twin 90mm) by Airworld - Page 14 - RC Groups
Thread Tools
This thread is privately moderated by Herb, who may elect to delete unwanted replies.
Nov 21, 2011, 06:46 PM
Official Boat Bum
Eddie P's Avatar
SIMPLY FANTASTIC Herb I'm very impressed with your work, it looks great. I'd love to see this fly.
Sign up now
to remove ads between posts
Nov 22, 2011, 12:55 PM
Lithium Member
Herb's Avatar
Thanks Eddie !

Maiden will be "soon" ...
Nov 22, 2011, 03:44 PM
Registered User
CORONA EX's Avatar
Well done Herb,,,,, for a hangar queen that is....

Looks like it is time for it to fly. Gyro on the nose wheel???? Forward rake nose wheel can be "fun".....

Futaba g190 rate gyro works great..
Nov 23, 2011, 06:16 PM
Lithium Member
Herb's Avatar

Me-262 maiden !


Did the maiden this morning

Took me 1.5 hrs to get to field, and another half hour to put the beast together.

Plugged everything in, did a short taxi test to make sure she was going nice & straight, then turned her around and applied full throttle. Very slight crosswind 2-3mph.

She tracks straight as an arrow with a nice tight steering.

After 300ft or so she seemed to have plenty of speed, so I pulled very gently on the elevator, then one more gentle pull and she was up in the air.

Nice wide left turn, no elevator trim needed. Gear up, a few clicks of left trim and then ready for the next upwind turn ... she like to keep the speed up in the turns.

A few more circuits at full and half throttle, listening for odd sounds.

Then getting ready for landing, as she slows down in the last downwind turn shes wobbles a bit but when straight down the runway she tracks straight as an arrow. Keeps on going and going, two inches off the ground, then one inch, then the mains at 0.5 inches Landing. She keeps on going, finally I remember I have brakes !

Taxi her back and when she's next to me I notice one of the brakes (Robart unibrakes) is seizing again . This is the second time I have this problem.

So no second planned flight with second battery. Pack up and go home instead.

Minor issues so far :

(1) Now I have to take those wheels and brakes apart again, and apply more silicone grease. Incidentally it seems it's the hub (at the axle) that is seizing, there is some sort of tolerance issues in the machining.

(2) My 2000 mAh pack is too small, voltmeter was in the yellow region under load as I was unplugging the batts after the flight. Need to double that to two packs of 2000 mAh each. I am running two good sized fans on top of the two 120A hv esc's. Plus five digital servos & three analog ones.

(3) Some of the 5.5mm gold plugs do not seem to be as tight as they should be, need to fix that. Don't want to have one come apart in flight.

(4) Some nosegear sideways play of the Robart 550 is probably normal.

.
Last edited by Herb; Nov 23, 2011 at 08:45 PM.
Nov 23, 2011, 06:40 PM
Spoooooon!
TheTick's Avatar
Congrats Herb!
Nov 23, 2011, 08:34 PM
Registered User
CORONA EX's Avatar
Quote:
Originally Posted by Herb
Did the maiden this morning

Took me 1.5 hrs to get to field, and another half hour to put the beast together.

Plugged everything in, did a short taxi test to make sure she was going nice & straight, then turned her around and applied full throttle. Very slight crosswind 2-3mph.

She tracks straight as an arrow with a nice tight steering.

After 300ft or so she seemed to have plenty of speed, so I pulled very gently on the elevator, then one more gentle pull and she was up in the air.

Nice wide left turn, no elevator trim needed. Gear up, a few clicks of left trim and then ready for the next upwind turn ... she like to keep the speed up in the turns.

A few more circuits at full and half throttle, listening for odd sounds.

Then getting ready for landing, as she slows down in the last downwind turn shes wobbles a bit but when straight down the runway she tracks straight as an arrow. Keeps on going and going, two inches off the ground, then one inch, then the mains at 0.5 inches Landing. She keeps on going, finally I remember I have brakes !

Taxi her back and when she's next to me I notice one of the brakes (Robart unibrakes) is seizing again . This is the second time I have this problem.

So no second planned flight with second battery. Pack up and go home instead.

Minor issues so far :

(1) Now I have to take those wheels and brakes apart again, and apply more silicone grease. Incidentally it seems it's the hub (at the axle) that is seizing, there is some sort of tolerance issues in the machining.

(2) My 2000 mAh pack is too small, voltmeter was in the yellow region under load as I was unplugging the batts after the flight. Need to double that to two packs of 2000 mAh each. I am running two good sized fans on top of the two 120A hv esc's. Plus five digital servos & three analog ones.

(3) Some of the 5.5mm gold plugs do not seem to be as tight as they should be, need to fix that. Don't want to have one come apart in flight.

(4) Some nosegear sideways play of the Robart 550 is probably normal.
Did it yourself eh,,,,, ??? Go to Prado tomorrow at 8am... I want to see it..
Nov 23, 2011, 08:35 PM
Registered User
Joespeeder's Avatar
Congrats Herb !!


Great Report !!
Nov 24, 2011, 12:18 AM
Registered User
Fantastic!

Mine is still sitting on the bench, awaiting some TLC.
Nov 24, 2011, 02:25 AM
Registered User
Hervorragend and congrats

Servus from Austria

cat
Nov 25, 2011, 12:57 PM
Registered User
Dave Grife's Avatar
Congratulations Herb,

Very nice work, any flight video ???

I had to smile as you described your 1.5 hours to the "field"

It doesn't look like any field that I'm familiar with.

Where I live, "field" implies something remotely green.

Your Me-262 looks like the only green object for miles.

Great Job !!!!!

-DG
Nov 25, 2011, 01:01 PM
Official Boat Bum
Eddie P's Avatar
This is nice to see! Congrats to you, and that was a nice post flight review. I'm sure you will get all the outstanding items sorted nicely. With your approach to this model I'm sure there will be many seasons of successful and rewarding operations ahead.

She looks very pretty sitting on the playa. She'll look even better at Prado or any jet event for that matter
Nov 25, 2011, 01:27 PM
Lithium Member
Herb's Avatar
Hi guys, thanks for all the comments !

It is a great kit, I just wish it was a bit smaller (6ft wingspan), nothing else fits in my suv after this monster is loaded .

Nevertheless it seem a great flier ... Airworld did a great job.
Nov 29, 2011, 07:25 PM
EDF Jet Jam 2017, June 15-18
Kevin Cox's Avatar
Congrats Herb!
Nov 30, 2011, 03:49 AM
Registered User
Congratulations - I had the shakes after my maiden with the 262! Have not flown it since.

What size batteries are u using - I used two 4500 S packs in par and still ended up with tail weight
Dec 02, 2011, 04:24 PM
Lithium Member
Herb's Avatar
Thanks Kev !

EF, I have a pair of 8S 4000 packs (TGY 40C), one pack for each motor/fan.

They butt right against the front of the forward wing-to-fuse joint, and the CG is fine with that location.

So do I understand you were noseheavy?

Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Build Log Skymasters F-4E Phantom As Twin EDF Project FlyBoyTha1 Electric Ducted Fan Jet Talk 321 Mar 29, 2013 12:44 PM
Build Log Twin 90mm EDF F-22 50" span 72" lenth Hover or die Scratchbuilt EDFs 58 Jan 21, 2013 10:03 AM
Discussion Boeing 777-200LR Twin 90mm project NickM91 Scratchbuilt EDFs 20 Jul 10, 2011 09:40 AM
Discussion Nitroplanes Honda 420 EDF, twin 90mm Knife Liddle Electric Ducted Fan Jet Talk 17 Mar 14, 2011 08:59 PM
Build Log Eagle project (twin 90mm) Kevin Cox Electric Ducted Fan Jet Talk 42 May 25, 2006 11:40 PM