OWL BAE Hawk T1 - 70mm EDF v2
( Semi Scale Model )
~ LW-PLA/ePLA-LW/PolyLight 1.0 Series ~

Suggested Level

OWL BAE Hawk T1 70mm EDF v2 is for advanced skill RC pilot

OWL BAE Hawk T1 70mm EDF v1 is for intermediate skill RC pilot

Old Pages / OWL BAE Hawk T1 70mm v1 Information

If you have purchased v1, the v2 is included for free. You can download it from the same repository *** just revisit the repository using the URL sent to your email address when purchasing the v1 ***. If you purchase the v2 then you also will get the v1. Feel free to print either the v1 or the v2.

If you want to fly the model in light weight or you consider your skill level is still intermediate, we would suggest to print and fly the v1. Once you get familiar with the v1, you may want to go to the next level flying the v2 one.

OWL BAE Hawk T1 - 70mm EDF V2
Animation Video and New Feature Info

What is new in v2 ?

– Flying with landing gears. Three available options :

  1. 3D printed LG with Freewing servoless retractable unit.
  2. Fixed 3D printed LG (non-retractable).
  3. Directly using Freewing metal servoless retractable LGs.

– Flying with navigation LEDs.

– Flying with flaps and rudder.

Introduction to OWL BAE Hawk T1 - 70mm EDF v1/v2

In v2, we upgraded OWL BAE Hawk T1 70mm EDF to the next level. It has 3 new features, enabling landing gears, adding navigation LEDs and adding flaps including rudder. By upgrading, it adds more weight to the model and also requires more power requirements. In v1, the model is sufficiently equipped with 4s 70mm EDF motor where in v2, it needs 6s 70mm EDF motor (more power). 

The flying characteristics also have changed. It is shown by the WCL value where it moves from 18.4 up to 25.1. If you are an intermediate skill pilot, we would suggest to print and fly the v1 instead where if you are already an advanced skill pilot, the v2 is the model that you would like to fly with. Both v1 and v2 are included when you purchase the model. 

70mm EDF OWL BAE Hawk T1 v1 has been tested with 4s and also 6s batteries. It is recommended to use about 400gr or more in weight such as a 3300mAh 4s battery. If you would like to use a 2200mAh 4s battery, you may want to use a 3D printed battery protector to get the correct CoG by adding some weight at the front side if necessary (we also tested with 2200mAh 4s with the protector and it works great also). The v2 needs about 400gr or more such as 2800mAh 6s. We found the 2800mAh 6s with the weight about 400gr is a good start and still keeping the weight low. More weight is possible but suggest to go along with advanced pilot skill. 

Since OWLplane has released our 3D printed catapult launcher, we suggested using the catapult to launch for v1. It is easier and safe when launching the plane. Reducing human error during throwing the model but if you prefer to throw, you still can do. We did hand launch the model with no issue. Please print and use grip protectors for hand launch since you can grip the model stronger and feel confident to throw the model as hard as you can.

In general, this model must be printed with LW-PLA/ePLA-LW/PolyLight 1.0 filament only.

Please note that G-code files generated from ideaMaker does not compatible to use with Prusa original 3D printers. Please use Cura or S3D instead if you would like to regenerate the G-code files for your Prusa printers.

Paint scheme, works and photos by Vikram Sharma (model is the v1).

Please note : navigation LEDs are manually added (where in v2 included in the design).

The model schemes/paint are from his awesome works. We would like to thank him for allowing us to share his amazing works.

Specification and Power Comparison

Version 2

Specification 

Power Requirement

Version 1

Specification 

Power Requirement

Version 2

Version 1

Spar Requirement Requirements  (V2 Left Column and V1 Right Column)

Version 2

  • 1 x 8mm OD with 458 mm and 1 x 8mm with 370mm long fiber carbon tube as primary and secondary fuselage and wing spars respectively.
  • 2 x 6mm OD for left and right wing spars with 348 mm long.
  • 2 x 6mm OD and with 216 mm long for stabilizer spars.

Version 1

  • 2 x 8mm OD and with 364 mm long fiber carbon tube as primary and secondary fuselage and wing spars.
  • 2 x 6mm OD for left and right wing spars with 375 mm long.
  • 2 x 6mm OD and with 216 mm long for stabilizer spars.

Locking Belts  (V2 Left Column and V1 Right Column)

Version 2

Need to glue the 4 belts from the fuselage. 

Version 1

No need to glue the belt into the fuselage. 

Locking Belt for Attaching Wings to The Fuselage (V2 Left Column and V1 Right Column)

Aileron/Wing Control Surfaces Rods (Same for V1 and V2)

Elevator/Horizontal Stabilizer Control Surfaces Rods (Same for V1 and V2)

Allow Hinge Rod for Elevator Rest Into the Fuselage (Only in V2)

To make the elevator control surfaces firm in their position, please allow the hinge rods to rest inside the fuselage. 

You need to glue the horizontal base stabilizer first left and right into the fuselage. When assembling elevator control surfaces, make sure the hinge rods rest inside the fuselage before gluing the last part “ELEVATOR-L/R-4 # PERI1_B6T3” to assembly elevator

For more details, please watch the assembly video when assembling stabilizers.

Electronic Position (Same for V1 and V2)

Feel free to position the electronics to get the correct CoG.

EDF Installation w/ Fixed Leading Edge Lip and Removed Leading Edge Lip (Same for V1 and V2)

Left picture is EDF installation with leading edge lip (you need screws to install) and right picture is EDF with no leading edge lip (you do not need screws to install but need to remove leading edge lip). You still can use your EDF with its leading edge lip still attached with generic provided bracket.

If you have 70mm EDF and would like to test if the bracket fits with your brand of EDF, feel free to download the bracket by clicking the button below:

No need to use screw if you pick the bracket installed with removed leading edge lip EDF as seen on the left and right sides of EDF in the picture above. In the middle is more generic bracket where you do not need to remove leading edge lip or if you have fixed leading edge lip EDF such as FMS Pro EDF version. 

Need to Open Some Areas (Some Areas Intentionally Closed to Support Vase Mode Printing)

Need to cut the following areas :

– FUSELAGE-2 # P3_H15_B2T0 : preventing any contact with the canopy.

– FUSELAGE-4 # P3_H15_B2T0 : so that spars can be inserted into the fuselage and also any cables can be routed into the front fuselage side location.

– FUSELAGE-5 # P3_H15_B2T0 : so that not blocking air flow to the EDF. 

Canopy Trim (Same for Both Canopy v1 and v2)

Need to cut the following areas so that it will fit into its place (preventing any contact to the elevator servos).

Center of Gravity (CoG) Same for Both Canopy v1 and v2

How to Launch OWL BAE Hawk T1 70mm EDF Model (Included V1 for Comparison)

Two methods are suggested to launch the model. The first one is to use OWLplane Catapult Launcher. Please visit OWLplane Catapult Launcher product page under “PRODUCTS” tab after clicking “ALL PRODUCTS”. You may want to download and print the 3D printed parts. The second one is by hand launching. 

It is recommended to launch the model by utilizing your own launcher or OWLplane Catapult Launcher since it is human error free.

#1 – By Utilizing OWLplane Catapult Launcher (Available for V1 Only)

If you plan to launch the model with your own catapult launcher, you may still want to download the model hook profile adapter from OWLplane Catapult Launcher repository/product and its free.

#2 – By Throwing (Available for V1 Only)

Follow the following tips to launch :

– Lean your body backward.

– Use 3 finger grip to launch.

– Start throwing by also moving your body forward.

Note : Above pictures are illustration only, using 50mm BAE Hawk T1 – 50mm EDF instead.

Please Use 3-Point-Grip Protectors as Follow (Optional but Recommended to Use)

If you choose to launch by throwing, please print the hand grip covers. Using the covers, it allows to grip the model harder comparing to only with naked hand grip holes.

Just ignore rough surface, it is not sanded yet. 

#3 – By Utilizing Landing Gears (Available for V2 Only)

Sand The Surfaces To Get Smooth Ones :

Comparing surfaces before and after sending it.

Here are the summary tables:

Table of Contents

From V1 to V2

What is new in v2 :

– Flying with landing gears. Three available options :

  1. 3D printed LG with Freewing servoless retractable unit.
  2. Fixed 3D printed LG (non-retractable).
  3. Directly using Freewing metal servoless retractable LGs.

– Flying with navigation LEDs.

– Flying with flaps and rudder.

OWL BAE Hawk 70mm EDF v2 – LED  Navigation

Try to find transparent filaments either PLA or PETG filaments. It may be easier to find transparent PETG type of filament rather than PLA. In the repository, the PETG gcode files are provided in case you would like to print them using PETG. 3MF PrusaSlicer files are also provided in case you would like to change the setting values to suite your 3D printer need.

Navigation LED Location (in total 6 LEDs):

Fuselage : 

  • 2 x White LED at the front and the right back side.
  • 2 x Red LED at the top and bottom side.

Wings :

  • 1 x Red LED at the left wing.
  • 1 x Green LED at the right wing.

Try to search and find similar LED navigation LEDs as shown on the above pictures. You can find them using Aliexpress.com or any other hobby stores. 

Make sure the LED diameter is 5mm. The following right side pictures show the 5mm LEDs that can fit also for the model for your reference but you need to do it yourself turning on the LEDs using available power source in the model.

OWL BAE Hawk 70mm EDF v2 – Landing Gears

Watch the following videos where you can use 3D printed parts with Freewing servoless retractable unit and also using all units from Freewing BAE Hawk T1 70mm landing gears. 

Main Landing Gears Assembly Animation

Watch the right side animation video on how to assembly the main landing gear parts.

How To Assembly Main Landing Gears

Nose Landing Gears Assembly Animation

Watch the right side animation video on how to assembly the nose landing gear parts.

How To Assembly Nose Landing Gears

Nose Landing Gear Assembly and Installation

Just follow as shown in the following video on how to assembly and install nose landing gear. The nose landing gear is designed so that it can be replaced whenever it gets broken (no need to glue the parts but feel free to do so).

Nose Landing Gear Support/Protector Part

Although the nose LG support/protector is optional, it helps to reinforce/protect the nose landing gear in its position. You may either glue or using double tape to attach it. If using servoless retractable unit, you need to make sure that servoless retractable unit still works fine after installing the support/protector. 

Please pick the one that you feel the best supporting nose landing gear where “STEERABLE-NOSE-LG-SUPPORT-1 # GR3” shortest and “STEERABLE-NOSE-LG-SUPPORT-4 # GR3” longest.

Update for 3D Printed Landing Gears – Dated June 25th, 2024

Instead of utilizing NBR O-ring, it is better to utilize pullback springs as shown below.

OWL BAE Hawk 70mm EDF v2 – Flaps and Rudder

In v2, left and right flaps including rudder uses 12gr servos the same type/size servo as remaining servos. Please refer to the animation video or assembly video how to assembly and also installing both flaps and rudder servos.  

3D Printed Part Info

Some Note for Slicing STL Files

Default Value are :

– Heatbed: 55C degree C.

– Hotend: 245 degree C (you may want to change it between 235 – 260 degree C).

– Extrusion Multiplier : 0.55% (feel free to update this value).

– Extrusion Width: 0.40mm (feel free to find your preference value, but it will be around that value).

– Extrusion Height: 0.25mm (greater is faster but less stronger bonding).

– Printing Speed: 40mm/sec.

– Retraction Speed : 50mm/sec.

Weight and Time Estimation

Following tables show the weight of printed parts, number of required filament rolls and time required to print. But the number may vary from printer to printer due to:

– Stepper Jerk value.

– Stepper Acceleration value.

– Steps per unit (either calibrated or uncalibrated).

– Extruder quality/condition.

– Nozzle quality/condition.

– Filament quality/condition.

– Etc. 

Here are the summary tables using PowerFun 6s 70mm EDF motor :

Klipper Firmware Does Not Accept “#” / Hash Character

Unfortunately the Klipper firmware does not accept the “#” / hash character when naming the file. More and more 3D printers nowadays and upcoming most likely will use the Klipper firmware where when using previous firmware such as Marlin, Prusa, etc. do not prevent it from processing. 

Since our naming convention for our g-code files utilize the “#” character and already since we started the OWLplane, we still keep them until our new release models dated after July 2024 (after BD OWLjet 70mm 6s EDF). 

No worry, to use our g-code files, just need to remove the “#” character, that is it !

Fore example :

FUSELAGE-1 # P3_H15″ replace the file name with “FUSELAGE-1 P3_H15”

Note : no “#” character is used in the new file name.

How To Extract Our Zip Files 

Somehow when the folder path is too long,  files and directories can not be extracted directly to a destination directory. There is a workaround for this, just follow the guide below. What you need to follow is to double click zip file until you find the directory. From there, double right click to invoke a “copy” command. After that, just paste the directory into your destination directory. That is it ! 

Recommended Setup for V2

Tools and Materials

Hardware Needed

For Fuselage and Canopy:

For Aileron, Flap, Rudder and Elevator Servos:

*) Illustration only

Setup for Servo Travel/Throw

Suggested setup for medium travel/thrown are depicted below and you may adjust the setup according to your need.

Suggestion : try to use lower rate first.

Assembly Figures

BAE Hawk 70mm v2 Fuselage Assembly

BAE Hawk 70mm v2 Wings Assembly

BAE Hawk 70mm v2 Stabilizer Assembly

BAE Hawk 70mm v2 Canopy Assembly

BAE Hawk 70mm v2 Main LG Assembly

BAE Hawk 70mm v2 Nose LG Assembly

BAE Hawk 70mm v2 Nose LG Block Assembly

Watch OWL BAE Hawk T1 - 70mm v2
Animation and Assembly Video
Please visit the page for having visual learning

Update History

None.