KAVAN Alpha 1500mm - Instruction manual/en - Revision history

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2025-10-15T11:58:28Z

FuzzyBot moved page AVAN Alpha 1500mm - Instruction manual/en to KAVAN Alpha 1500mm - Instruction manual/en without leaving a redirect: Part of translatable page "AVAN Alpha 1500mm - Instruction manual"

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FuzzyBot: FuzzyBot moved page KAVAN Alpha 1500 V2 - Instruction manual/en to AVAN Alpha 1500mm - Instruction manual/en without leaving a redirect: Part of translatable page "KAVAN Alpha 1500 V2 - Instruction manual"

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FuzzyBot moved page KAVAN Alpha 1500 V2 - Instruction manual/en to AVAN Alpha 1500mm - Instruction manual/en without leaving a redirect: Part of translatable page "KAVAN Alpha 1500 V2 - Instruction manual"

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Martin: Martin moved page KAVAN Alpha 1500mm - Instruction manual/en to KAVAN Alpha 1500 V2 - Instruction manual/en without leaving a redirect: reason

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Martin moved page KAVAN Alpha 1500mm - Instruction manual/en to KAVAN Alpha 1500 V2 - Instruction manual/en without leaving a redirect: reason

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2025-10-15T11:29:53Z

Martin moved page KAVAN Alpha 1500 V2 - Instruction manual/en to KAVAN Alpha 1500mm - Instruction manual/en without leaving a redirect: reason

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Martin: Martin moved page KAVAN Alpha 1500mm - Instruction manual/en to KAVAN Alpha 1500 V2 - Instruction manual/en without leaving a redirect: reason

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Martin moved page KAVAN Alpha 1500mm - Instruction manual/en to KAVAN Alpha 1500 V2 - Instruction manual/en without leaving a redirect: reason

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Martin: Martin moved page KAVAN Alpha 1500 V2 - Instruction manual/en to KAVAN Alpha 1500mm - Instruction manual/en without leaving a redirect: reason

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Martin moved page KAVAN Alpha 1500 V2 - Instruction manual/en to KAVAN Alpha 1500mm - Instruction manual/en without leaving a redirect: reason

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	2. Following your radio instruction manual connect the servos, ESC and LED light cables to your receiver – the table shows the channel assignment of the T8FB radio supplied in the RTF kit:<br>		2. Following your radio instruction manual connect the servos, ESC and LED light cables to your receiver – the table shows the channel assignment of the T8FB radio supplied in the RTF kit:<br>
	{\| class="wikitable"		{\| class="wikitable" style="text-align: center; width: 100%;"
	\|'''Connector label'''		\|'''Connector label'''
	\|'''Function'''		\|'''Function'''
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	'''A. A radio featuring only one aileron channel'''		'''A. A radio featuring only one aileron channel'''
	{\| class="wikitable"		{\| class="wikitable" style="text-align: center; width: 100%;"
	\|+		\|+
	\|'''Control'''		\|'''Control'''
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	\|}		\|}
	'''B. A radio featuring 2 independent aileron servo channels'''		'''B. A radio featuring 2 independent aileron servo channels'''
	{\| class="wikitable"		{\| class="wikitable" style="text-align: center; width: 100%;"
	\|'''Control'''		\|'''Control'''
	\|'''Low rate'''		\|'''Low rate'''

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	# Disconnect the flight battery from the charger. LEDs will glow green indicating the charger is ready to charge another pack. Unplug the charger from the mains socket if you are not charging another battery.		# Disconnect the flight battery from the charger. LEDs will glow green indicating the charger is ready to charge another pack. Unplug the charger from the mains socket if you are not charging another battery.
	{{Note\|type=error\|text='''Caution:''' Charge the LiPo battery with the battery charger included in the RC Set or with a fully compatible charger that assures a safe charge to the LiPo pack. Always follow the safety precautions as laid down in the manufacturer’s manual. In the charging process, keep your charger and your battery in a cool and shady place, away from any possible source of fire. Do not cover the charger or the battery with clothes or similar. Ventilation is crucial for the necessary cooling of the devices.}}		{{Note\|type=error\|text='''Caution:''' Charge the LiPo battery with the battery charger included in the RC Set or with a fully compatible charger that assures a safe charge to the LiPo pack. Always follow the safety precautions as laid down in the manufacturer’s manual. In the charging process, keep your charger and your battery in a cool and shady place, away from any possible source of fire. Do not cover the charger or the battery with clothes or similar. Ventilation is crucial for the necessary cooling of the devices.}}
	{{Note\|type=warn\|'''Important: Never leave the battery charging unsupervised. If the battery becomes too hot or starts to ~~“inflate”~~, disconnect it immediately from the charger.}}		{{Note\|type=warn\|'''Important''': Never leave the battery charging unsupervised. If the battery becomes too hot or starts to "inflate", disconnect it immediately from the charger.}}

	=== Assembly ===		=== Assembly ===

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	* Wingspan: 1492 mm		* Wingspan: 1492 mm
	* Length: 985 mm		* Length: 985 mm
	* All-up ~~Weight~~: 780–810 g		* All-up weight: 780–810 g
	* Wing ~~Area~~: 21.8 dm²		* Wing area: 21.8 dm²
	* Wing ~~Loading~~: 35.8–37.2 g/dm²		* Wing loading: 35.8–37.2 g/dm²
	* Motor: ~~C2217–1200~~ outrunner		* Motor: C2217-1200 outrunner
	* ESC: KAVAN R–30B 30 A with BEC 5 V		* ESC: KAVAN R–30B 30 A with BEC 5 V

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	==== For the ARF set: ====		==== For the ARF set: ====

	* At least a 4-channel transmitter and receiver, ~~Li-Po~~ flight pack 11.1 V 1100–1300 mAh		* At least a 4-channel transmitter and receiver, LiPo flight pack 11.1 V 1100–1300 mAh

	==== Tools: ====		==== Tools: ====
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	A) The CG has to be located 55–60 mm behind the leading edge of the wing. Balance your ALPHA 1500 V2 supporting the wing with your fingertips 55 mm behind the leading edge for the first flight.		A) The CG has to be located 55–60 mm behind the leading edge of the wing. Balance your ALPHA 1500 V2 supporting the wing with your fingertips 55 mm behind the leading edge for the first flight.

	B) You can fine-tune the CG position later to suit your requirements. Moving the CG forwards the model flight will be more stable, moving backwards the controls will become more sensitive. The thermalling performance might also slightly improve. Note: Moving back the CG too much could cause your model to be hard to control or even so unstable that you wouldn't be able to control it at all.		B) You can fine-tune the CG position later to suit your requirements. Moving the CG forwards the model flight will be more stable, moving backwards the controls will become more sensitive. The thermalling performance might also slightly improve.<br>{{Note\|type=info\|text='''Note:''' Moving back the CG too much could cause your model to be hard to control or even so unstable that you wouldn't be able to control it at all.}}

	'''Now you are ready to fly!'''		'''Now you are ready to fly!'''
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	[[File:BETA - Coordinated left turn (180°).png\|alt=Coordinated left turn (180°)\|thumb\|446x446px\|Coordinated left turn (180°)]]		[[File:BETA - Coordinated left turn (180°).png\|alt=Coordinated left turn (180°)\|thumb\|446x446px\|Coordinated left turn (180°)]]
	'''Rudder''' of a model without ailerons (you might be already familiar with) controls the bank angle, which then controls the rate of turn. The natural stability of your model keeps the wings level in normal straight flight. Since your ALPHA 1500 V2 features ~~“full house”~~ controls including ailerons that are the main means to control the bank angle, the use of the rudder is slightly different. You can even start flying your model without using the rudder - but you will learn lately the correct coordinated turn actually requires both aileron and rudder inputs. Any turn requires an appropriate bank angle – ALPHA 1500 V2 will fly nice big and safe flat turns with only a small bank angle. During initial flights never use a bank angle of greater than 45 degrees. By planning the direction the model will take, normal turns will be made with less than 30 degrees of bank. Move the rudder to the left a little way, and your model will bank into a gentle turn. Increase the rudder input a little more, and your model will continue turning to the left, but it will also start to descend (this is a good time to move the control stick to the centre to allow your model to recover from the dive).		'''Rudder''' of a model without ailerons (you might be already familiar with) controls the bank angle, which then controls the rate of turn. The natural stability of your model keeps the wings level in normal straight flight. Since your ALPHA 1500 V2 features "full house" controls including ailerons that are the main means to control the bank angle, the use of the rudder is slightly different. You can even start flying your model without using the rudder - but you will learn lately the correct coordinated turn actually requires both aileron and rudder inputs. Any turn requires an appropriate bank angle – ALPHA 1500 V2 will fly nice big and safe flat turns with only a small bank angle. During initial flights never use a bank angle of greater than 45 degrees. By planning the direction the model will take, normal turns will be made with less than 30 degrees of bank. Move the rudder to the left a little way, and your model will bank into a gentle turn. Increase the rudder input a little more, and your model will continue turning to the left, but it will also start to descend (this is a good time to move the control stick to the centre to allow your model to recover from the dive).

	'''Why does your model descend when only rudder is applied?''' Once the rudder leaves its exact vertical position it also starts to work as an elevator turned down telling your model to dive. When in a banked turn to maintain level flight it is necessary to apply a little up elevator to counter the effect of the down-turned rudder. (Actually, the reason why your model descends in the bank is much more complex - the wing gives less lift in the bank as the vertical projection of the wing is the area that counts and you also have to beat the inertia that tries to keep your model in the straight flight...) The elevator applied when your model is in a banked turn also works like a rudder - fortunately, it helps to maintain the turn!		'''Why does your model descend when only rudder is applied?''' Once the rudder leaves its exact vertical position it also starts to work as an elevator turned down telling your model to dive. When in a banked turn to maintain level flight it is necessary to apply a little up elevator to counter the effect of the down-turned rudder. (Actually, the reason why your model descends in the bank is much more complex - the wing gives less lift in the bank as the vertical projection of the wing is the area that counts and you also have to beat the inertia that tries to keep your model in the straight flight...) The elevator applied when your model is in a banked turn also works like a rudder - fortunately, it helps to maintain the turn!

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	* Motor: C2217–1200 outrunner		* Motor: C2217–1200 outrunner
	* ESC: KAVAN R–30B 30 A with BEC 5 V		* ESC: KAVAN R–30B 30 A with BEC 5 V


	=== Safety precautions ===		=== Safety precautions ===
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	==== Charging the transmitter batteries ====		==== Charging the transmitter batteries ====
	The accumulators have to be charged prior to the first flight.		The accumulators have to be charged prior to the first flight.
	{{Note\|type=error\|text='''Caution:''' Never ever try to charge the primary (zinc-carbon, alkaline...) batteries that are not rechargeable. Otherwise, ~~explosion~~ and/or fire might happen!}}		{{Note\|type=error\|text='''Caution:''' Never ever try to charge the primary (zinc-carbon, alkaline...) batteries that are not rechargeable. Otherwise, explosions and/or fire might happen!}}

	==== Checking the transmitter battery ====		==== Checking the transmitter battery ====
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	Your ALPHA 1500 V2 is to be powered by a 3-cell LiPo battery pack. The LiPo battery supplied in the RTF Set features two connectors. One is for the balanced charge of the cells (JST–XH type) and the other one is dedicated to the discharge (XT60). The RTF set contains also a dedicated KAVAN C3 wall fast charger (230 V/50 Hz) designed for charging the flight pack using the balance cable.		Your ALPHA 1500 V2 is to be powered by a 3-cell LiPo battery pack. The LiPo battery supplied in the RTF Set features two connectors. One is for the balanced charge of the cells (JST–XH type) and the other one is dedicated to the discharge (XT60). The RTF set contains also a dedicated KAVAN C3 wall fast charger (230 V/50 Hz) designed for charging the flight pack using the balance cable.

	==== Charging the flight battery (RTF set) ====		==== Charging the flight battery (RTF set) ====

	# Connect the power cable to the charger.		# Connect the power cable to the charger.
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	=== Assembly ===		=== Assembly ===

	==== Wing ====		==== Wing ====

	# Locate the steel wire wing joiner (note the "V" shape ensuring the correct wing dihedral) with the plastic adapter and slide both wing halves onto the joiner.		# Locate the steel wire wing joiner (note the "V" shape ensuring the correct wing dihedral) with the plastic adapter and slide both wing halves onto the joiner.
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	# Secure the wing using two 2.5×15 mm screws to the fuselage.		# Secure the wing using two 2.5×15 mm screws to the fuselage.

	==== Tailplanes ====		==== Tailplanes ====

	# Put together the vertical and horizontal tailplanes and secure them using two 2.5×15 mm screws to the fuselage.		# Put together the vertical and horizontal tailplanes and secure them using two 2.5×15 mm screws to the fuselage.
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	[[File:ALPHA - Tail.png\|border\|450px]]		[[File:ALPHA - Tail.png\|border\|450px]]
	[[File:ALPHA - RC.png\|border\|450px]]		[[File:ALPHA - RC.png\|border\|450px]]

	</p>		</p>

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	C) Return the aileron stick to the centre (neutral) - both two ailerons will return to the neutral position.		C) Return the aileron stick to the centre (neutral) - both two ailerons will return to the neutral position.

	{{Note\|type=info\|text='''Note:''' If the ailerons are moving in the opposite direction, you will have to reverse the direction by flipping the aileron reverse switch (AIL) on your transmitter.}}'''4. Testing the rudder'''		{{Note\|type=info\|text='''Note:''' If the ailerons are moving in the opposite direction, you will have to reverse the direction by flipping the aileron reverse switch (AIL) on your transmitter.}}
			'''4. Testing the rudder'''

	A) Move the rudder stick to the left (looking from the tail to the nose). The rudder must move to the left.		A) Move the rudder stick to the left (looking from the tail to the nose). The rudder must move to the left.
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	C) Return the rudder stick to the centre (neutral) - the rudder will return to the neutral position.		C) Return the rudder stick to the centre (neutral) - the rudder will return to the neutral position.
	{{Note\|type=info\|text='''Note:''' If the rudder is moving in the opposite direction, you will have to reverse the direction by flipping the rudder reverse switch (RUD) on your transmitter.}}'''5. Testing the elevator'''		{{Note\|type=info\|text='''Note:''' If the rudder is moving in the opposite direction, you will have to reverse the direction by flipping the rudder reverse switch (RUD) on your transmitter.}}
			'''5. Testing the elevator'''

	A) The elevator stick is located on the left side of the Mode 1 transmitter or on the right side of the Mode 2 transmitter. Pull the elevator stick down. The elevator must move up.		A) The elevator stick is located on the left side of the Mode 1 transmitter or on the right side of the Mode 2 transmitter. Pull the elevator stick down. The elevator must move up.
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	C) Return the elevator stick to the centre (neutral) - the elevator will return to the neutral position.		C) Return the elevator stick to the centre (neutral) - the elevator will return to the neutral position.
	{{Note\|type=info\|text='''Note:''' If the elevator is moving in the opposite direction, you will have to reverse the direction by flipping the elevator reverse switch (ELE) on your transmitter.}}'''6. Control surface throws'''		{{Note\|type=info\|text='''Note:''' If the elevator is moving in the opposite direction, you will have to reverse the direction by flipping the elevator reverse switch (ELE) on your transmitter.}}
			'''6. Control surface throws'''

	If you carefully followed the instructions in the previous sections of this manual, the correct default control surface throws have been set automatically. The control throws are set by the ratio between the length of the servo arm and the control surface throw - the actual throws set this way are listed in the column "Normal rate" in the table below. (The throws are always measured at the widest point of the particular control surface.) It is always better to try reaching requested throws mechanically, adjusting the arm/horn length ratio - even if you have got a fancy computer radio. If you have such a transmitter you can use the function "Dual rate" (D/R) to get an even more forgiving setup - please refer to the "Low rate" column. You can also do it mechanically - simply move the push rod Z-bends on the servo arms closer to the centre.		If you carefully followed the instructions in the previous sections of this manual, the correct default control surface throws have been set automatically. The control throws are set by the ratio between the length of the servo arm and the control surface throw - the actual throws set this way are listed in the column "Normal rate" in the table below. (The throws are always measured at the widest point of the particular control surface.) It is always better to try reaching requested throws mechanically, adjusting the arm/horn length ratio - even if you have got a fancy computer radio. If you have such a transmitter you can use the function "Dual rate" (D/R) to get an even more forgiving setup - please refer to the "Low rate" column. You can also do it mechanically - simply move the push rod Z-bends on the servo arms closer to the centre.
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	{{Note\|type=error\|text='''Caution:''' Keep away from the propeller once the battery is connected to the model. Do not try to stop the propeller with your hands or anything else.}}		{{Note\|type=error\|text='''Caution:''' Keep away from the propeller once the battery is connected to the model. Do not try to stop the propeller with your hands or anything else.}}
	[[File:ALPHA_-_CG.png\|right\|frameless\|250x250px]]		[[File:ALPHA_-_CG.png\|right\|frameless\|250x250px]]
	'''8. The centre of gravity''		'''8. The centre of gravity'''

	A) The CG has to be located 55–60 mm behind the leading edge of the wing. Balance your ALPHA 1500 V2 supporting the wing with your fingertips 55 mm behind the leading edge for the first flight.		A) The CG has to be located 55–60 mm behind the leading edge of the wing. Balance your ALPHA 1500 V2 supporting the wing with your fingertips 55 mm behind the leading edge for the first flight.
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	== Flying ==		== Flying ==

	=== Choosing the flying field/weather ===		=== Choosing the flying field/weather ===

	==== Flying field ====		==== Flying field ====
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	Failure to lower the throttle stick and trim to the lowest possible positions in the event of a crash could result in damage to the ESC, which may require replacement of the ESC.		Failure to lower the throttle stick and trim to the lowest possible positions in the event of a crash could result in damage to the ESC, which may require replacement of the ESC.
	{{Note\|type=info\|text='''Note:''' Crash damage is not covered under warranty.}}		{{Note\|type=info\|text='''Note:''' Crash damage is not covered under warranty.}}


	=== KAVAN R-30B instructions ===		=== KAVAN R-30B instructions ===