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Posted by Old_Pilot | Jun 23, 2016 @ 05:13 PM | 422 Views
I've decide to try this airframe one more time, this time with (2) 70mm fans and scaled up to a 40" wing
Posted by Old_Pilot | May 30, 2016 @ 08:37 PM | 1,157 Views
Gotta share this.....I've lost planes to mechanical failure, signal loss, bug strikes, and dumb thumbs......never had one catch fire in mid air until got hot....but the smoke trail was spectacular ! it looked like I'd been shot down by a missile....ESC, wiring, and receiver are a total loss.....haven't tested the EDF motor

Had over 100 flights on this airframe..guess I pushed her too hard for too long
Posted by Old_Pilot | May 26, 2016 @ 05:46 PM | 1,316 Views
As I suspected.....this POS fan won't push it across the may fly the aircraft on a hand or bungee launch......I have all kind of bad words for this thing.......the 6 blade plastic version will pull a similar sized flat jet right out of my hand and launch from the ground easily.....DAMMIT!

What a complete waste of money ! It won't happen again
Posted by Old_Pilot | May 26, 2016 @ 06:24 AM | 1,633 Views
I was all set to start assembling my Avro 707A entry for BBCC 7 when the fan and motor arrived......the powerplant was not what I expected....I thought I'd ordered the 90 mm Freewing 6 blade with a plastic housing, but received the 12 blade version with an aluminum housing.....much much heavier than I anticipated. So I decided to test the fan in a $10 foamie rather than a $100 balsa scratch which I scaled up my simplified version of the Avro CF-105 Arrow to accept a 90 mm fan internal of the fuselage.....she'll maiden sometime soon.

CF-105 Arrow (simplified)
90 mm Freewing 12 blade with aluminum housing
Freewing 3748-1450 kv brushless
125% free inlet air - 85% FSA efflux
100 amp ESC with a 5A BEC
3700 mah 40 C 6S
TowerPro MG946r Servos
36" WS x 46 OAL 50% KFM-2 airfoil
Elmer's board with CF spars
60 oz all up - 112 oz (supposedly) thrust
Lemon full range 6 channel Rx
Posted by Old_Pilot | May 05, 2016 @ 09:04 AM | 2,643 Views
Maiden tomorrow......winds are supposed to be light and variable.......

Maiden flight

1951 Ringmaster C/L conversion to electric RC (3 min 11 sec)

Posted by Old_Pilot | Apr 13, 2016 @ 04:30 PM | 2,126 Views
Clocked at a little over 130 with a data logger...I'll get video when the wind calms down.

Einzpfeil 90 - 32" WS x 42" OAL Elmers board (with a few carbon fiber sticks....LOL) airframe, 50% KFM-2 airfoil, 90mm Freewing 6 bladed fan, Freewing 3553-1750 kV motor, 80 A ESC, 3300 mah 40C 6s battery, Futaba S-3004 servos, Lemon 6-channel full range Rx, 0.156 CF spars, CF tape for leading edges...and a Wendy's 40 oz plastic drink cup for the fan nacelle....I'll post the plans and patterns here if you guys are's a video of her sister ship

StealthStream 10 1 90 mm Fan (3 min 44 sec)

Posted by Old_Pilot | Mar 25, 2016 @ 02:31 PM | 2,398 Views
COMPLETE FAILURE !.severely underpowered..maybe version 2.0 with a proper wing and (2) 70 mm fans......she was much too heavy for those little 64's
Posted by Old_Pilot | Mar 20, 2016 @ 05:29 AM | 2,158 Views
While I was waiting for the field to dry out.....40" S-3 Viking with (2) 64mm fans
Posted by Old_Pilot | Mar 20, 2016 @ 05:26 AM | 2,118 Views
Haven't posted much in the last few weeks.......Somehow I volunteered to build a new pavilion at the'd think I would have learned after so many years in the USAF.....LOL

20'x20' screened pavilion at the club to replace the old...Continue Reading
Posted by Old_Pilot | Mar 03, 2016 @ 12:41 PM | 2,106 Views
Preliminary 2-view.....KFM-2 wing
Posted by Old_Pilot | Feb 12, 2016 @ 08:27 AM | 2,363 Views
built this one for a friend at the club.....

Here's the maiden from this morning.......8-10 mph cross wind

StealthStream 5E 70 mm (3 min 55 sec)

Posted by Old_Pilot | Jan 24, 2016 @ 01:56 PM | 2,615 Views
Posted by Old_Pilot | Jan 22, 2016 @ 03:03 PM | 2,634 Views
It's been a while since I posted anything........Here's the latest:

30" WS x 40" OAL KFM-2 StealthStream with a 90 mm fan.

Preliminary number indicate a 1.85:1.0 thrust to weight ratio (3.5 lbs all up vs 6.5 lbs of thrust......took me longer to paint her than build her..LOL

Fan nacelle is a Route 44 cup from Sonic with the bottom 1.25" removed.......the rest of her is Elmer's board...

full sized servos (S-3004 or eq)
80 amp ESC
3700 mah 40C 6S
Lemon Featherlite 6-channel...Continue Reading
Posted by Old_Pilot | Nov 18, 2015 @ 10:02 AM | 2,857 Views
I buy my balsa from a local art supply store and one of the guys that works there asked me to build a display model to hang above his Midwest Balsa display....printed the drawings Monday, cut her out yesterday, and put her together yesterday afternoon and this morning.....
Posted by Old_Pilot | Nov 12, 2015 @ 01:10 PM | 3,289 Views
Did this for my friend Al..........he found a fly-away Apprentice and wanted to turn it into an L-19....she's as close as I'm going to get without major surgery
Posted by Old_Pilot | Nov 09, 2015 @ 11:51 AM | 3,154 Views
Here's the highlight of the Fun fly that we had on Saturday....

Jack Estes (4 min 57 sec)