Recent posts

#11
Trading Post / FS: Crazy 8 balsa plane
Last post by Gregor77 - October 24, 2024, 06:16:50 PM
Its yellow, Eric might have grabbed it at one of our swap meets, $40?  Its in great shape, but no electronics, no landing gear.
looks to be made by great planes.
#12
Trading Post / FS: Parkzone striker (OG)
Last post by Gregor77 - October 24, 2024, 06:15:13 PM
I have a rather complete Parkzone striker with orange rx / 20 amp esc, brushless, needs one servo and some age related repairs, awesome flying plane... $60 

text me if interested: 905-616-0201
#13
Trading Post / FS: GWS Formosa X2
Last post by Gregor77 - October 24, 2024, 06:13:24 PM
I am helping Eric H unload his collection, I have two Formosa GWS planes, they look rather complete, one has a motor and the other not, maybe a few servos, not sure, one is painted like rothmans, might have come originally from Ken Colemans collection.  $40 for the pair? Best offer. The motor is worth more... Pickup at my place in Stouffville, or text me. 905-616-0201.
#14
Building / Construction / Re: Sr. Falcon EDF Power - Kit...
Last post by GuyOReilly - October 24, 2024, 12:29:33 PM
Test fitting fuselage parts prior to any gluing.
I made certain there was a right and left sides... this time...  ;)
The quality of the parts is great and the die cutting (crushing?) is better than some other kits I have had the pleasure of building.
Beginners, please abstain from building this as a first project; instructions on the plans are sparse and confusing.
The fuselage will be built first as this will reduce the parts count in the box and that is the amount of space available at this time (basement needs a big clean).
Nose gear will be attached to the firewall prior to installation.  Following @Frank v B suggestion a separate servo for the nose gear will be place at the front of the firewall to allow room for the batteries.
#15
General Discussion / Drone Delivery Systems
Last post by GuyOReilly - October 23, 2024, 12:35:17 PM
I came across this video with Adam Savage of Myth Buster fame.
I thought that it was very interesting.
Guy
https://www.youtube.com/watch?v=YhNfeejuByI
#16
Building / Construction / Re: Sr. Falcon EDF Power - Kit...
Last post by GuyOReilly - October 23, 2024, 12:20:21 PM
Tested the EDFs this morning. Using 3C only at this time...  :D

https://www.youtube.com/watch?v=Z8t-yrk2vWw

Looks like the wing mounting could work with simple attachment for power to the EDFs and another "Y" connector for the connection to the receiver. ;)
#17
Building / Construction / Re: Sr. Falcon EDF Power - Kit...
Last post by GuyOReilly - October 23, 2024, 10:24:16 AM
I found thios design on THINGIVERSE:
https://www.thingiverse.com/thing:1218072

There is only one image and I cannot determine its size based on the information available.
@ppalumbo or another member familiar with #D printing could let me know if the inside could accommodate a 70 mm fan.
3D printing might be better than ply and balsa construction.  ???
Thank you.

#18
Building / Construction / Re: Sr. Falcon EDF Power - Kit...
Last post by GuyOReilly - October 22, 2024, 11:18:43 PM
Thank you @Frank v B these are useful suggestions.
I will use the nose wheel and place the servo forward.
The EDFs are located ahead of the leading edge and probably will be mounted below the wing.
One possibility is to make the wing with 2 outer sections leaving the main center section mounted with the EDFs (but detachable for inspection) with wing bolts.  That would make transport easier and field prep faster.
I have the design of the "reactors" from Aerofred and in the process of modifying them to fit and to have access for maintenance.
More to follow.
#19
Building / Construction / Re: Sr. Falcon EDF Power - Kit...
Last post by Frank v B - October 22, 2024, 10:05:25 PM
Guy,

This is the original kit from the '60's or early '70's.  It is still all balsa (incl. balsa and ply doublers).  The main indication is the rubber band wing fastening.  The later revised kit's changes were lite-ply fuse sides but wing bolts.
re: EDF related questions- I know nothing.
re: nose wheel. Twin EDF tail dragger is radical.  If form follows function then that explains why there are few or no tail dragger jets.
re: nose wheel servo- If you are going twin EDF, where are you putting them?  If on the wing, finish the nose and put the servo ahead of the firewall holding the nose gear. Consider putting the nose wheel bearing plate ahead of the firewall as well.  This way the belcrank can be as far away from the planned battery hatch.

My two cents.

Frank
#20
Building / Construction / Re: Sr. Falcon EDF Power - Kit...
Last post by GuyOReilly - October 22, 2024, 07:35:58 PM
Quick calculation and the weight would be likely around 8 lbs. due to battery and 2 EDFs.  :o
QUESTIONS:
1- Should it be powered by 2 batteries or one?  The ESC are rated 70 AMPS and for 4-6 cells.
2- The nose wheel and steering is in the way of the planned battery tray. How about a tail wheel instead?
3- I need to test the engine/ESC/battery combination prior to mounting.  Any suggestions on test stand?
4- Wings are rubber bands mounted, how about changing to bolt-on for more rigidity?
Thank you.