First flight of "White-Red" Hatz

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First flight of "White-Red" Hatz

Postby Woha » Thu Jun 15, 2017 12:01 pm

Hi all,
After 3 years of building, thinking, designing and realizing my own concept of biplane, my White-Red Hatz departed for its maiden flight on 15th May 2017. The aircraft just flies like a dream, making my childhood’s dream come through.
By now I would like to thank you all for sharing your incredible experience and knowledge here on this great forum. I think it’s my turn now to share a bit info about my HC164:
ZFW: 548 kg (pretty heavy)
MTOW: 771 kg (approx 1700lbs)
Engine: Rotec R3600 w/TBI Mk II
Propeller: Culver Prop 84x55”
Prop clearance: 12”
Wheels: 600x180mm (Yak-12)
Brakes: Beringer
Tailwheel: Scott 3200 (AB)
Seatbelts: Gadringer-Gurte
Radio and TXR: Trig
Antennas: Comant
Lights: Grimes with LEDs
Gauges: mostly Russian made: 3in1, CHT, EGT, ammeter, G-meter, clock
and AFR Innovate, MGL FF-1 w/Red Cube, low volt warning light from AS
Flight instruments: SI, VSI, Altimeter, compass, rpm, turn indicator
Ignition switch: Bendix type ED-F modified for electronic ignition
Mods vs plans:
-bigger main wheels
-shorter MLG legs- 26”
-wing-body fillets
-trim wheel
-side FWD cockpit door
-side baggage hold door
-wing walk left side only
-one piece windscreens
-fuel tank cap on the left side
Fuel tank: 93,5 liters
Stall speed: 38kts
Max cruise speed with MTOW and WOT: 90 kts @ 3050 rpm
Max static rpm: 2850
On cruise at 1500 ft:
speed: 75 kts @ 2700 rpm with fuel burn 24,1 l/h
Oil press 350 kPa
Oil temp: 95 C
CHT: 150 C
EGT: 820 C
So far the aircraft has 8 flight-hours and I still continue testing her in the air and on the ground.
At this stage I found one small leak from the fuel tank (investigating the source) and few things with my wonderful engine. I will try to write more about it later, after everything is fixed (I’m in touch with Rotec now).
Find few pictures below and link to the film. Enjoy.
HC#164, Poland
More pics on my FB: White Red Hatz ... e_internal
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18519795_1789073961110536_6490039111631497035_n.jpg (23.75 KiB) Viewed 1127 times
18447074_1789074721110460_2899457530404164476_n.jpg (26.92 KiB) Viewed 1127 times
DSC02364small.jpg (75.23 KiB) Viewed 1127 times
Posts: 26
Joined: Sun Jan 05, 2014 5:22 am

Re: First flight of "White-Red" Hatz

Postby HC85 » Fri Jun 16, 2017 5:48 am


Lovely airplane! Thank you for sharing your experience , photos , and the data. I am looking forward to hearing about the engine issues, since my ship will have the Rotec as well!

I estimate my ship being 2-3 years from completion. Just finished the fuse basic structure and welding. Wings are done.

Posts: 82
Joined: Sat Aug 03, 2013 5:34 pm

Re: First flight of "White-Red" Hatz

Postby HC85 » Fri Jun 16, 2017 7:28 am

Oh, I forgot.....

What is the best average rate of climb for your plane?


Posts: 82
Joined: Sat Aug 03, 2013 5:34 pm

Re: First flight of "White-Red" Hatz

Postby Jetsareforkids » Sun Jun 25, 2017 9:35 am

Congratulations, the Hatz looks great. Now it's time to fly.
Posts: 16
Joined: Tue Sep 10, 2013 9:35 pm

Re: First flight of "White-Red" Hatz

Postby wildhorsesracing » Sun Jun 25, 2017 6:58 pm

Congratulations! Gorgeous plane!
-Jim Pantas
Posts: 37
Joined: Fri Apr 02, 2010 8:54 pm

Re: First flight of "White-Red" Hatz

Postby hatz215 » Wed Jun 28, 2017 12:38 pm

Beautiful ship!
Posts: 75
Joined: Tue Mar 23, 2010 3:29 pm

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