C5 Dash 8 V Speeds

Question 1

V₁

Answer 1

Takeoff Decision Speed

T/O abort prohibited this speed. PF removes hand from Power Levers above V₁

Lower Index on T/O

Question 2

V_R

Answer 2

Rotation Speed

Typically a few knots above V₁. Not marked on airspeed indicator

Question 3

V₂

Answer 3

Best Performance Climb Speed.

Speed for single engine climb to 1,000’ AFE, or if maximum performance is required due to windshear or GPWS.

Bugged for T/O

Normal two engine climb is V₂ + 10 until Acceleration Height.

Also called T/O safety speed.

Question 4

V_FR

Answer 4

Flap Retraction Speed

Flaps are retracted during single engine departure or go-around / missed approach.

Reached via level acceleration at Acceleration Height.

Question 5

V_SE

Answer 5

Single Engine Climb Speed.

“Push IAS”

Climbout from Acceleration Height on single engine departure.

Bugged Speed.

Question 6

V_SE-ICE

Answer 6

V_SE + 15.

• 200: If Icing is present, reset the index to this speed after reaching 1,500 AFE.
• 300: Index this speed if icing is present.

Question 7

V_REF-ICE

Answer 7

Landing Reference Speed if any of the following conditions are present:

• Ice accumulation on wing leading edges.
• Maneuvering with bank angles exceeding 15º during the approach
• Windshear is reported
• Gusts greater than 10 knots.

Speed is bugged.

Question 8

V_REF

Answer 8

Landing Reference Speed

Final Approach Speed provided none of the conditions for V_REF-ICE are present.

Speed is indexed.

Question 9

V_SE (landing)

Answer 9

Single Engine Go Around

Single Engine Climb Speed listed under landing data on TLR. Use -Ice speeds as appropriate.

Upper Index.

Question 10

Bugged and Indexed speeds for T/O.

Answer 10

• V₁
• V₂
• V_SE

Question 11

Bugged and Indexed Speeds for Landing

Answer 11

• V_REF
• V_REF-ICE
• V_SE or V_SE-ICE