As Jepe says "Foam jets are just toys, but a Jepe composite jet is the best"
JEPE USA A4 Skyhawk
The DFRC Jepe USA A4 Skyhawk EDF Jet For 90 mm edf units was made by Jeepe S for Ductedfans.com. It is a model that is ultra light weight, resulting in better performance than many other 90 mm modelson the market. Ductedfans.com has two versions available made with parts from the USA and Holland (not China).
Sence the early days Morris Brady of Ductedfans.com would take the Balsa wings and glass them to inprove the strength, and durability. Later we switched to fully molded wings (with balsa and or substraits), and today we work to inprove the overall
A4 Skyhawk Kit Contents:
Detailed lightweight Epoxy glassfiber wingcarbon reinforced (on glass wing version), tail , wheel fairings and fully
detailed fuselage(2 parts). Epoxyglass airintake(carbon reinforced), thrust
tube. Small parts to connect the servo's, servo covers, bungee hook, pilot+cockpit
interior, decals/airbrush masking set and strong Vivak canopy. All plywood
bulkheads are CNC cut, and airintake lips are vacuum moulded . The English language instruction comes
with many pictures as CD-rom. This is our most exclusive model Jet kit !
FAN system for EDF A4 Skyhawk: Complete ducting is designed to fit our new MBM Jets BK 90P. At
6s Lipoly this Fan produces about 18N static thrust at only 39 Amps! This is
enough for good sport /aerobatics performance and even enough to make a take-off
from short grass without the use of a bungee: just "skating" on the 2 wheelcover
fairings at full throttle! If you use a 7s battery, performance will be optimal
for giant loopings and high speeds. Current at 7s is still very low at about 37
Amps: this gives you plenty of flight time(6-7 minutes) for a good aerobatic flight
with about 21N of thrust! If throttle is used this Fan can also run on 8s but
than current is over 43 Amps and flight times are shorter. 7s is most optimal
for
a high performance JePe USA A-4 Jet, 8s is for the speedfreaks who care less about
aerobatics nor about lifetime of their Lipoly battery. Every battery salesman
will tell you their battery can handle 50 or 65 Amps easy but in practise all
cells that reach discharge temperatures above 45-50 degree Celsius have a
reduced life time. This means that EDF models which run much of there flight
time at full throttle should have a motor current of about maximal 45 Amps for
cool running at a nice summer day.(things change so if you have diffrent data call Morris and let us know)
Technical data:
Wingspan:
90 cm (35,4 Inch)
Length:
124 cm (48,8 Inch)
Airfoil:
semi symmetrical
Empty weight:
750 grams (26,5 ounce or 1,65
pound)
Max weight:
1750-2100 Gram (62-74 ounce or
3,8-4,6 pound)
Fan:
JePe 90mm 3W-1200 SpiderFan
flight Battery:
6-7-8s Lipoly Kokam 3200 or
Polyquest 3700 (3s packs are possible to fit in but packs of 2s in
series have better cooling and longer lifetime)
Radio functions:
3x JR DS 281 servo's on ailerons/elevator
+ throttle control
Receiver battery:
1400 mAh NiMh
Controller: high timed
Jet Mate Advance 80 (if more than 6s cells are
used)
Model take-off:
Bungee launch or simply skate off the grass
on the wheelfairings at full throttle (no bungee needed!)
Item # DFRC/JPUSA401 (Balsa Foam Wing) in stock 10/11/10
A4 Skyhawk USD $850.50 Lipo version, Our Sale price $337.99
This is a fine fiberglass jet made with parts from The USA, and Holland.
As Jepe says "Foam jets are just toys, but a Jepe composite jet is the best".
Due to the fire at JP's electro factory, The JP jet line may be no more according to his website some of the molds may have servived but it doesn't look good. Customers have asked if they would still be able to get parts. Yes, we have offerd after market composite wings for over 2 years (special order), and after market parts for most the JEPE / USA Products.
Item #DFRC / JPUSA402
All composite A4 Skyhawk version
USD $998.99Our sale price $699.99s Retract Ready composite wings avilable, Takes 0ne to two weeks if not in stock.
Ready for retracts (and soon flaps).
#JPUSA-4can01 (A4 Skyhawk Canopy)
$20.00
#JPUSA4CW (All composite wing)
$120.00
#JPUSA4HT(Horizontal Tail composite)
$65.00
#JPUSA4LI (long intake)
$65.00
#JPUSA4SI (short intake/ lipo version)
$65.00
#JPUSA4MF (A4 Skyhawk motor farrings)
$25.00
#JPUSA4WP (wood parts)
$65.00
#JPUSA4BAD (Blue Angles decals)
$25.00
#JPUSA4BAPM (Blue Angles paint Mask set)
$55.40
#JPUSA4N (A4 Skyhawk * nose not the hole fusalage 3.32")
$25.00