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Posted by Old_Pilot | Aug 18, 2016 @ 06:22 PM | 1,556 Views
Y'all ain't gonna believe this......go sit down.....
Dassault Systemes' drafting software (Draftsight) has asked me to come to Waltham MA to film the construction of 2 of my flat jets (a 70 and a 90) to be used as a presentation of the capabilities of Draftsight at SolidWorks World conference in L.A. in Feb......I've been beta testing some of their stuff over the last year.....that's another story.....

Anyway, I was sending them the drawings for the StealthStream (with the 3D), and one thing led to another...it's a hoot.......all expenses paid.... I didn't post this anywhere until it was finalized.

Well, it's been finalized ! I'm about as excited as a 5 year old on Christmas morning......

They originally offered to fly my wife and I to L.A. for the SWW conference in Feb. But I countered with an offer to come to Waltham to build and fly the aircraft for their marketing purposes.
And they sent me this today..full 3D solid model of the StealthStream....using SolidWorks.

They went nuts when they saw the last 90mm take to the air.
..and all of this happened because of a couple of pieces of foam board and a fricking coffee cup.........LMAO
Posted by Old_Pilot | Aug 18, 2016 @ 10:49 AM | 1,252 Views
Flight Ready.......total build time 48 hours....from scratch

Spec's

GForce 4250 900 kV motor
65A ESC
4000 mah 40C 4S
Lemon 6-channel receiver
11x7 prop
TowerPro MG90s aileron servos
Tower Pro MG 946R rudder/elevator servos
12% symmetrical Joukowski airfoil
light weight construction.....original had a lot of 1/4".....this one is mostly 3/16 and 1/8
maple spar caps with balsa webs (I-beam spar)
Posted by Old_Pilot | Aug 15, 2016 @ 06:49 AM | 1,018 Views
Stuck a Mobius mini cam on the bottom of the StealthStream 10X...for your amusement

SS10X In flight (1 min 56 sec)

Posted by Old_Pilot | Jul 24, 2016 @ 05:32 PM | 1,903 Views
I've been tweaking this airframe for almost a year.....fans, motors, servos, ESC, airfoil, and everything else......I think I'm gonna stop messing with it

StealthStream10X (2 min 57 sec)

Posted by Old_Pilot | Jul 05, 2016 @ 10:29 AM | 5,230 Views
Here's my last attempt to make the 105 fly with an internal fan.
36" ws, 48" OAL, 90mm Freewing 6 bladed fan, 1850 Kv motor, 100 amp ESC, 9 gram servos, 54 oz AUW, 104 oz thrust, 86% efflux cone, Elmer's board, KFM-2 50%...Continue Reading
Posted by Old_Pilot | Jun 23, 2016 @ 05:13 PM | 1,278 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 | 1,949 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 today...........uuuhhh.......it 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 | 2,112 Views
As I suspected.....this POS fan won't push it across the ground....it 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 | 2,403 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 build....to 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 | 3,389 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 | 2,915 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 interested.......here'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 | 3,116 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 | 2,879 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 | 2,834 Views
Haven't posted much in the last few weeks.......Somehow I volunteered to build a new pavilion at the club....you'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 | 2,839 Views
Preliminary 2-view.....KFM-2 wing